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Патент USA US2403579

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July 9, 1946.
» J. H.- CARPENTER
2,403,579
LUBRICATING SYSTEM FOR TWO-SPEED TRAÑSMISSIQNS
Filed Dec. 18, 1943
2 Sheets-Sheet 1
July 9, 1946.
2,403,579
J. H. CARPENTER
LUBRICATING SYSTEM FOR TWO-SPEED TRANSMISSIONS
Filed Deç. 18, 1943
2 Sheets-Sheet 2
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,Patente-d lJuly 9, 1946
. lzflòtw
UNITED ,sTATEs__ PATENT oFFICEy
2,403,579
`LUBRICATING SYSTEM FOR TWO-SPEEDi
c
'
lTRANSMISSIONS
'
. John H. Carpenter, Williamsport, Pa., assignor to
The Aviation Corporation, New York, N. Y., a A
corporation o! Delaware
_
Application December 18, 1943, Serial No. 514,731
19 claims. ~ (01.134-6)
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>The invention relates to lubricating syste
for two-speed transmissions for driving~ the super
sun-.gear shaft 36 which is integral with the sun
gear 35 and is provided with bushings 3J »andI 3l'
charger of an internal combustion engine.
One object of the invention is to provide eili-A
which are iournaled in the inner periphery of
the hollow input shaft 21 for rotation of shaft -
cient means for lubricating two-speed transmis
36 relative to shaft 21. Side member 3910i the
support for ring 30 has a hub which isV journaled
in a bushing 50 which is ñxed in the casing sec#
tion I1 and the opposite side member 4I'is sup
ported for rotational movement `on bushing 42
ori the input shaft 21. Bolts 308L extend through
and with nuts 30b secure together the side mem
bers 39 and 4I with the gear ring 30 between
them. Bushing 28 in which the inner end of the
input shaft 21 is journaled,- is iìxedly secured in
the hub of side member 33 vof the gear-ring 30
by a pin 28a. Each planet gear 32 is carried'by
sions in which planetary gearing is controlled for y
driving at two speeds by a pair of clutches.
Another object of the» invention is to provide
yimproved lubricating means in which the oil from
’ the bearings for the input shaft and bearings for
' the sun-gear shaft Within the input shaft is con
ducted through the sun-gear shaft to an over
running clutch and a brake clutch which control
the two speed operation of the planetary gearing.
Other objects of the invention will appear from
the detailed description.
v
ïThe invention consists in the several novel fea
tures hereinafter set forth and more particularly.
declined by claims at the conclusion hereof.
lIn the drawings:
>
and journaled on a hollow` stud-shaft 41 which
is secured in a pair of flanges 48 whichl are inte
gral with the input shaft 21 and between which
20,I the planet gears are conñned against endwise
Fig. 1 is avertical longi udinal section of a
movement.' Each stud-shaft 41 is hollow, closed
two-speed transmission embodying the invention.A
and provided at one end with a flange 49 which
abuts against the outer side of one of the flanges
48. A flanged cap 5I is screw-threaded into and
closes the other end of said stud-shaft, and locks
Fig. 2 is a section illustrating the driving mech
anismfor the transmission and the impeller of
the supercharger driven by the transmission,
parts being shown in elevation.
Fig. 3 is a section taken on line 3--3 of Fig. 2.
- rThe invention is exemplified in two-speed
/ transmission in a casing comprising the end sec
each stud-shaft in the flanges 48.l ' Each planet
gear 32 is provided with a bearing-bushing 32“
which ñts around and is' journaled on the stud
shaft 41 and rotates with gear 32.
l .
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tion I5 of an engine-casing which usually con 30 When the input shaft 21, *through the one
tains the gearing for driving the engine auxil- ' way clutch hereinafter described, drives the sun
iaries; a section I1 which encloses the impeller A
I3' of the supercharger,’and a head I9 Whichwith
section I1 encloses and supports parts of the two
gear shaft 36, sun-gear' 35, planet-gears`32,'and
gear-ring 30 will rotate as a u_nit' with the input
. shaft, and drive the impeller at low speed ratio.
35 When sun-gear shaft 36 is braked against rota
tion relative to the input shaft 21 by the hydrau- .
__A shaft .20 has fixed thereon a gear 23 which
vspeed transmission.
is driven from the engine in any suitable manner,
'lically controlled disk-clutch hereinafter de
scribed, the input shaft 21 will impart planetary ‘
and a gear 22 on shaft 20 which meshes with the
input gear 26 of the two-speed transmission."
movement to the planet-gears 32'around sun->
The impeller I8 in casing section I1 is ñxed to a 40 gear 35, and ring'30 will be driven at a higher
speed than the input shaft to drive the impeller
sleeve shaft I 8e, which in turn is rotated by a
at the high speed ratio.
'
’
sleeve-shaft 24 which surrounds thedrive shaft>
The disk-clutch for selectively braking shaft.
20. A gear 25, integral with shaft 24, meshes
with and is driven bythe output gear of the two-v
36 and sun-gear 35 for the highespeed operation
of the impeller and for releasing them Afor rota- ï
speed transmission.
The two-speed transmission comprises a gear
tion with the input shaft 21 for the> low-speed
operation of the impeller is hydraulically con
23 which is splined to the hollow input shaft
21 which is journaled in a, bushing 29 in the head
trolled and mounted in a, non-rotatable housing
I9 and in a. bushing 28; an output gear ring 39
which comprises an annular section 54, an inner
which has external gearteeth 3i meshing with 50' plate 55 and arrcover-plate 511?L which are secured
the gear 25 on the impeller shaft 24 and is rotat- g
ably carried by a support which comprises side `
members 3‘9 and 4I; a set of planet gears 32 which
mesh with internal gear teeth- 33 on ring 33 and
~with the. teeth of a sun-gear 35; and a hollow
by _bolts 564120 head I9. This disk-clutch com
prises a non-rotatable set of friction-disks; or
:plates-51 which are slîdably splined at 58 to the>
housing section 54 and a, set of intermediate disks
or plates 59 which are slidably splined, 'as at 60.
2,403,579
4
supercharger at low speed. During'low speed
to a‘hub or member 6|- which is rigidly secured
"operation of the impeller, the gear ring 30 will
by splines 92 to and adjacent the outer end of
the sun-gear shaft as. A plate sa is sndably I be driven at the same speed asshaft 21, and the
sun-gear'shaft 36 will rotate around the tube~ 10.
splined at 68 to the housing section 54 for press
When clutch-disks 51, 59 are engaged. member
ins .the disks 51, is mw gripping rennen and
19 of the one-way clutch on the sun-gear shaft
securing the sun-gear shaft 36 against rotation.
1 When disks 59 are fric'tionally gripped by the
- non-rotatable disks 51, the sun-gear shaft 36 will
be braked against- rotation by input shaft 21.
Resilient spreaders 65 may be interposed between
'
and member 8| on the input shaft 21 will rotate '
freely around member 19 and sun-gear shaft 36.
The input shaft 21 will then impart planetary
movement to the planetgears 32 which will drive
l the disks 51 to urge the disks 61 away from con
tact with disks 59.
, 39 will -bev locked against -rotation by said clutch
. '
The plate 63 is slidably splined at 58 to the ,
housing section 54 for engaging the clutch to .
brake the-sun-_gear shaft 36. This plate 63 is
controlled by a hydraulic device which comprises
a cylinder 66 which is formedy in the cover-sec- '
tion or plate 54* and a piston 61 which is slidable
, the gear-ring 30 at a higher speed than the input
shaft, for the high speed operation of the impeller
. of I’the supercharger.
’
1
A manually controlledrotary valve 88 ismount
ed in the lower portion‘of head |9 of the casing
and in one lposition permits the flow of oil under
engine ’pressure from a duct 89 inthe head sec
tion I9 to a duct’90 which communicates with the '
in said cylinder and provided with a piston ring
81* and a flange 69 for engaging plate 63. 'I‘he 20 interior of cylinder 66 lfor shifting the piston 61
against `the force of spring 69 to engagethe clutch
piston I61 is provided with an out-turned hub 61b
disks 51, 59. With valve 86 in a second position,
with a bushing 68'u which is slidable in an in
it permits iiow of the oil from duct 90 and cylinder wardly extending cylindrical ~member 54h on the
66 to a duct 9| which discharges the oil into the ' cover-section 54e. A compression spring 69 is ap
plied to press the piston 61 normally into its 25 usual Well in the casing section |1.
The surface between input shaft 21 and bush
clutch releasing position. fIlhe flange .68 on pis
ton 61 is adapted to abut against ’the plate 63 Ü ing 29 and the surface between bushings 31, 38 .
and sun-gear shaft 36 in the input shaft 21,l the
for forcing the disks or plates 51 and 59 into grip
one-way clutch, and the disk-clutch are'lubri
ping relation and locking the sun-gear shaft 36
against rotation. -A tube 10 is splined at 12' to, 30 cated byoil from the pressure system of the en
gine delivered to a duct |00 which is formed in
and held against rotation by, the cover plate 54a.
head | 9. 'I'he bearing‘surface >between bushing
. An. annular shoul er 1| on tube 10 functions as
29 and input shaft 21 communicate with duct |00_
an abutment for ¿ he spring 69. A bushing 13
through apport extending through‘the bushing.
is secured in a cross-Wall 36'* of the hollow sun
gear shaft 36 and v`is provided with a thrust-face 35 Radial ports I0| extend through the wall of input
shatt 21 vand are communicatively connected to
which is> engaged by a thrust face on annular
shoulder 1|“ on the spring-pressed tube 10. rDhe
tube 10 extends through the bushing 13 in the "
duct |00 for conducting oil through bushing 29 to
an annularl chamber |02 formed in the sun-gear
shaft 36 and. extending longitudinally between
cross-wall 36*l in the sun-gear shaft, and its inner
end extends into and fltsin a ring 21b which is 40 bushings 31, 38. From annular chamber |02, oil
flows to the bearing surfaces between Vbushings
secured` in the. hub of reduced diameter on the
31, 38 and input shaft 21. Some oil passes'be
inner end oflthe input shaft 21. The hub of
piston ßllis slidably splined at 12a to the tube
10 to holdA the piston against rotation. A cap
68a in a recess in the cover 54al which forms a
chamber aroundv the outer open end of tube 10,l
tween the bushing 38 and the inner periphery of
input shaft 21 into a climber l le formed in shaft
36 from which' it passes to the sun-gear 35 and
, planet-gears 32.
A radial port- |03 in cross-wall 3'6a in sun-gear
shaft 36 communicatively connects annular
the input shaft 21 andthe sun-gearshaft 36 for ' chamber |02 and annular groove |04 in the bushà.
driving the sun-gear 35 during low speed oper 50 ing 13. ' An angularly extending duct |05 in bush
ation, comprises an outer or driving member 8|
ing 13 communicates with annular groove |04
and the abutting bearing-faces on shoulder 1|
which is fixedly splined to the input shaft 21;
of tube 10 and bushing 'l3‘which are lubricated
the inner member 19 which is flxedly splined at
by oil passing from chamber |02 through POP-t
80 tothe sun-gear shaft 36;` and rollers 83 held
in a cage 82 between the cylindrical internal 55 |03, groove- |04 and duct |05. An annular cham
forms a closure -for said chamber.4
v
The free-wheeling or one-way clutch between
ber |06 around tube 10 is formed in the sun-gear
periphery on the driving member 8| and the'cam
shaft 36 and oil flows to said chamber |06 from
surfaces on the outer periphery of the member
119 for driving the sun-gear shaft in one direction I the abutting faces on shoulder 1| and bushing 13.
when the latter is free for rotation and for per
Radial ports |34 communicate with chamber
mitting `the input shaft 21 to rotate around sun 60 |06 and a duct |36 in member 19 of the one-way
gear shaft 36 when `the latter shaft is locked , clutch, and conduct oil from chamber |06 to
against rotation'. 'I'he construction of this free
the Working surfaces of said clutch. A port |40
wheeling crever-running clutch may be of any
is formed in the outer member 8| of‘the -one
'way clutch for the discharge of oil from said
suitable construction, as well understood in the
art. The» inner member 19 of the free-Wheeling 65 clutch into head I9 of the casing. Radial ports
clutch and the inner member 6|- of the friction
|4| extend through the wall of sun-gear shaft
clutch are 'secured against endw-ise movement on
36 and communicate with chamber |06 and the
the inner end of sun-gear shaft 36 by a screw
chamberl |31 in member 6| of the disk-clutch.
cenar 11 and a 10er-zing 1s. when the 011mm " Radial ports |38 extend through the peripheral
disks 51, 59 are free 'or disengaged, driving mem
wall of member 6I. Oil, in limited quantity, is
conducted from chamber |09 via ports I4 |, cham
ber 8|, through rollers 83, will drive the member
ber |31 and ports |38 to the surfaces of the disks
19 on the sun-gear shaft 36 and rotate the sun
gear 35 to 4cause the ~planet pinions 32 to be
51., 59 ofthe disk-clutch.
The bearing for the »inner end of the input
rotated bodily with the input shaft 21 and sun»>
gear shaft 36, for driving the impeller of the 75 shaft 21, the bearings for the planetary pinions
2,4
6
32 on> stud-shafts 41 'and the bearing for the
'flow to the bearing-surfaces between bushing 28
side member 4I of the support for the gear-ring
30, are lubricated by oil from a duct I1* in -section I 1 to which oil is also delivered by the pres
sure lubricating system of the engine. An an
nular channel II1, formedin the internal pe
riphery of bushing 50 >in which side member 38
of the support vfor gear-ring 30 is Journalled, is
communicatively connected to duct I 1*. Oil from
and input shaft 21, and oil will flow to the bear
ing-surfaces between bushings 31. 38 via port
` ItI and-annular chamber |82. vOil,which works
between bushing 38 and the inner'periphery of
input shaft 21, will pass into chamber I|8 and to
the sun-gear 3l and planet-gears 32. ` Oi1',_from
the bearing-surfaces between the inner periphery
of bushing _28 and the inne;~ end of shaft 21, will
channel ||1'1ubricates_ the bearing-surfaces be-_
also pass into the support for gear-ring 30, to
_ tween- the hub of member 39 and bushing 5l.
lubricate the gears therein. The abutting thrust
Angularly extending ports I I8 extend through the
surfaces of shoulder 1|* and bushing _13 will be
lubricated by oil from annular chamber |02 via
Dort |83. annular channel» |04' and annular duct
wall of the hub of member 39 and bushing 28
and communicatively connect annular channel
|I1 with annular channel' I|9 which is formed
|85.
in the-inner periphery of bashing 28, and con-
Oil from the abutting thrust faces 'of bush- _
ing _13 and shoulder' 1|* will pass into chamber
|88 via duct |33,¿‘to the working surfaces of the
one-way clutch. Some oil will also pass from
chamber |08, via ports I4I into the chamber of
member 6| and ports |38 tothe disks 51,:.59 of
_ __ ducts oil to-:the bearing-surfaces between the
bushing' 28 and the inner reduced end of input
shaf-t 21. ' _A radial port |20 extends through the
wall of the reduced end of input shaft 21> and
' communicatively connects the annular channel
the brake-clutch.
l ' _
_
'I'he bearing-_surfaces between the hub of lmem
_ I I9 in bushing 28~with an annular vl'channel |2I _
>in- the'outer’periphery ‘of the ring or sleeve' 211?
which isnxedly `secured vin the bore of the inner
end of input _shaft 21_ ~and conducts oil from chan
ber 39 of the support for rgear~ring 30 andbush‘- 'A - _»
ving 50 will be lubricatedby oil under pressurev
from duct I1“ and channel I|1. The bearing
surfaces between the hub of ‘side-member >39 and '
` = nell I9 to cnannei |21. l Ports lzz extend radiauy
outward from channel I2 I through the- input shaft
l2'I_ and stud-shafts 41 vand >conduct oil from chan
ì’ _neljI2I into _chambers |22EL in said shafts. stepped _
members |23?- h'ave ports |23l which `'communica-_
> bushing“ will be lubricated by.' oil 'tlowing thereto through ports||8 from channel ||1. The bear- '
ing-surfaces between bushings32‘ in planet-gears _
32 and’ stud-shafts 41 will be lubricated bvoil‘
tivelyconnect' the chambers- |22? withthe'bear-~ » from channel II9, via'ports |20, channel |2I, ~ _
ing-surfaces between the inner 'peripheries of _. '_ïpo'rts |22, chambers|22§ and'member.l23_‘~". The
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bushings` 32e in planetary pinions'32-andrthe _ 'bearing 42 between theouter periphery of input ' ‘
‘ '_outer »peripheries-of stud-_Shafts _41; respectively, É _fshaftßlZ-'l and's'ide member 4I of the _support for -_
and conduct o'ilffrcrn‘ .chambers |223 to' saiid bear-_ '
gearèring'30 will-'be lubricated by oilv fronichan-V
_ ing-surfaces.“ The »studeshafts'ß__arefrotated at . '
lnel_|2|_and duct |2851>
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a high rate~ of speed- around the` axis of-'input .
Oil'i’rom' the bearing-surfaces between'bushing ' _"5 f
' shaft 27 during the> high-speed: operation` of the
g 50 and the hub _of member 39 andthe bearing# ‘ “
transmission,l` Chambers '|223 'in _shafts _41 act
,_
trifugal force into the outer‘portions of »chambers ‘
surfacesbetween bushing 28 and the input shaft »_ _
21 will ilow into chamber |30 and the overflow ^
will pass via ring or sleeve 21”-, tube 10, ports |33- ' "
in _tube 10. into chamber |08' from which oil'ñows, ' ~
|2221. Each member '|238 extends inwardly into
to duct |36, and the working surfaces of the one-__ _ '_
asa centrifuge _forth‘esludgfe in the oil'in said"
' chambers. The sludge'will be thrown bycen-~
way' clutch, and also through ports I4I, chamber
chamber |228» a -sui’licient distance to’ prevent the -
sludge‘fromV passing through said member,y so that
_ |31 and ports |38 to the‘disks'of the brake-clutch.
clean ’oil will flow _to the bearing-surfaces> between _ ' _
bushings 32“y fand; stud-_shafts 41.
_
_
' A duct |28 in input' shaft _21 communicates with
annular >channel VI 2 I and l«the bearingàsurfaees be
tween the inner periphery' of the' bearing in’mern
When' the impeller i's operated at the high- _ f _
Ysjpeeclratio: the relative rotation of shafts 21
and 36 will feed oil between bushing 38 _and input
shaft 21 to chamber |18 and the planet gearing;
_the rotation of the hub of member-3_9 around.,
_shaft 21 will feed oil viavnorts I2||,fchannel I 2| _
and ports v|22 to chambers |22‘in the stud-shafts
'41 and from channel I2`|1via duct |28 to the. bear- ~
ing-_surfaces between’shaft __21 and member _4`I-.
O_ll will also be fedïfroinïïthe bearing-surfaces of v ~_ -
bushing 28 to chamber I3llf‘from which _it iiows '
through :tube 1_8, ports |33,~ chamber: |06, ~and
`
ports I4I to th'edisk-_clutch and'via. ports |34
fafand |36 to the'-one-way`c1utch-“"19’, 8|. During'
support for 'gear-_ring 3Il~`and >from thez‘bearing'
high-speed operatiom bushing 13 and shaft 38
wm bombe stationary ananas wiureduce
Asurfaces
21 passesbetween
into 'acharnber-_IBII
bushing 2_2 8A and
>inthe
casinggs'ec'tion
hub l"_Ofshai’t _ _ _- iiow
_ the
between theabuttixig- faces of abutment
I1. Chamber |3üin'g`comniunication', through
shoulder 1|? and bushing113 to chamber |96.
_ring or sleeve. 2.1”,> fwith the Vopen _inner 'end' of _ w
_During the operation-ofthe -impeller at the
low-speed ratio: bushing 38 on sun-gear' shaft 36
and input shaft 2_1 will rotate together, and the-- _
feed»
of oilbetween
'|I8_ Ais-reduced;bushing
bushing 38 ‘and
28; shaft
»the hub.
21 of"
_to .
This oil'supplements the‘cil :tîlowin'gintcrchambery _ ' __
_ |06` fromÍthe abutting 'surfaces iml shoulder 1Il - memberv 39 and the innerfendofshaft 21 will ._
tube 10.-' __ The 'overflow-oil; 'which
>in
liixcjessîoil'from‘ftl'iehousingfor>
rotate together, and'the‘fbearing between bush-¿Jv
the' disk-.clutchÍescapes throughual _port_|39«_in`“ï ingißfandthehubïof member 39 will be lubri
' and -bushingv13.
_Y
'l _plate 55/_into’the chamber_aroinmlvthe:{one-way_V f cated by._ oil from duct I1“ and channel II1. _ Dur;
ing l'owèspfeed operation,fbushing 13 -will -rotate ì ’_
~ >»The operation of the lubricatingásystem
'1 _
'- around tube1land feed oil from duct llllithrough - f - x »
.
-.
-
ì
7
duct IIB to the abutting thrust'faces between said
4bushing- and abutment shoulder 1|* on tube 1l.
In'this lubricating system, the Vfeeding of oil j
to the several parts requiring lubrication, is con
v trolled proportionately to requirements of high
-speed and low-speed operation.
The invention provides efficient 1ubricatlng and
cooling means for the clutches for driving the
I' sun-geari'shaft and the clutch for locking it
8
input shaft, an output >gear-ring` rotatable rela»-Y
tively tothe input shaft and provided with -a
' gear engaged by the planet gears, a clutch for ~
locking the sun-gear and its shaft against rota
tion, and a clutch for driving the sun-.gear shaft
from the input shaft; a lubricating- system com
prising means for delivering oil under pressure to
' the engaging 'surfaces'of the bearings- for the
input shaft, means for delivering oil from one of
against rotation by oil passing through the bear 10 the bearings for the input shaft to the bearings
l ings for the input shaft in the casing and the out
for the sun-gear shaft in the input shaft and one `
of the bearings for the sun-gear shaft to the
sun-gear. and means for delivering oil from the
engaging surface of the other bearing for the <
' the thrust-bearing for the stationarytube whichv 15 input shaft through the sun-gear shaft to one
`of the clutches. V
conducts oil through the sun-gear shaft and pro
4. In a two-speed transmission for driving the '
vides an abutment for the spring which retracts
impeller of a supercharger comprising a hollow
the piston which actuates the disk'clutch for '
input shaft, a sun-gear, a shaft for the sun-gear
locking the sun-'gear shaft.
The invention is not to be understood as re 20 extending through the iuput shaft, bearings for
the input shaft, bearings in the input shaft for
stricted to the details set forth, since these may
the sun-gear shaft, planet gears carried by the
be modified within >the scope of the appended
input shaft, an output gear-ring rotatable rela
claims without departing from the spirit and
put gear support and the bearings between the
input shaft and the sun-gear shaft. The uwen-_
tion -also provides efficient means forv lubricating
tively to the input shaft and provided with a gear
'
,
‘
`Having thus described the invention, what I 25 engaged by the planet gears, a clutch for locking
the sun-gear and its shaft against rotation,~and
claim as new and desire .to secure by Letters Pat
a clutch for driving the sun-gear shaft from the
ent is:
'
~ '
input ' shaft; aV lubricating system comprising
_1. In a two-speed transmission for driving the
means for delivering oil under pressure to the
impeller of a supercharger comprising a hollow
input shaft, a plurality of bearings for the input 30 engaging surfaces -lof the bearings for the inputÍ
shaft, means for delivering oil from one of the
shaft, a sun-gear, a shaft for the sun-gear ex
bearings for the input shaft to the bearings for
tending through the input shaft, bearings for the
the sun-gear shaft in the input shaft and from
sun-gear shaft in_the input shaft,- planet gears
one of the bearings for the sun-gear shaft tothe
carried by the input shaft, an output gear-ring
rrotatable relatively to the input shaft and. pro 35 sun-gear,v and means for delivering oil from the
engaging surfaces of the other bearing for the
vided with a gear- engaged by the planet gears, a_
input shaft through the sun-gear shaft to both
clutch for locking the sun-gear and its shaft
of the clutches'.
.
v
.
against rotation, and a clutch for driving the
scope of the invention.
sun-gear shaft fromthe input shaft; a lubricat- »
5. In a two-speed transmission for driving the
impeller of asupercharger comprising a hollow
ing system comprising means for delivering oil
under pressure to the engaging surfaces of the
input shaft, a plurality of bearings for the input
bearings foi' the input shaft, means for delivering
shaft, a sun-gear, a shaft for -the sun-gear ex
tending through the input shaft, bearings in the
input shaft for the sun-gear shaft, _planet gears
shaft, and means for delivering oii from the en 45 carried by the input shaft, an output gear-ring
rotatable relatively to the input shaft and .pro
gaging surfaces of the _other bearing for the input
oil from one of the bearings for the input shaft to
the bearings for the sun-gear shaft in the input
'
shaft through the sun-gear shaft to one of the
vided with a gear engaged by the planet gears, a
clutch for locking the sun-gear and its shaft
'
against rotation, and a clutch for driving the sun
2. In a two-speed transmission for driving the
impeller of a supercharger comprising a hollow 50 gear shaft from the input shaft; a lubricating
system comprising means for delivering oilunder
input shaft, a sun-gear, a shaft for the sun-gear
pressure to the engaging surfaces of the bearings
extending through the input shaft, bearings for
the input shaft, bearings for the sun-gear shaft
for the input shaft, la non-rotatable tube for de
livering oil from the engaging surfaces of one of
in the input shaft, planet gears carried by the
input shaft, an output gear-ring rotatablel rela 55 the bearings for the input shaft through the
sun-gear shaft and means for delivering oil from
tively to the input shaft and provided with a
gear engaged by the planet gears, a clutch for
said tube to one of the clutches.
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„
6. In _a two-speed transmission for driving the
locking the sun-gear and its shaft against rota
impeller of a supercharger comprising a hollow
tion, and a clutch for driving the sun-gear shaft
from the input shaft; a lubricating system com 60 input shaft, a sun-gear, a shaft for the sun-gear
extendingthrough the input shaft, bearings for
prising means for delivering oil under pressure to
clutches.
' the engaging surfaces of the bearingsv for the
,the input shaft, bearings in the input shaft for
the sun-gear shaft, planet gears carried by the
input shaft, means for delivering oil from one of
input shaft, an output gear-ring rotatable rela
the bearings for the input shaft to the bearings
for the sun-gear shaft in the input shaft, and 65 tively to the input shaft and provided with a gear
engaged by the planet gears, a clutch for locking
means for delivering oil from the engaging sur
vthe sun-gear and its shaft against rotation, and
ìfaces of the other -bearing for the input shaft
a clutch for driving the sun-gear shaft from the
through the sun-gear shaft to both, of the
` clutches.
input shaft; a lubricatingl system comprising
3: In a two-'speed transmission for driving the 70 means for delivering oil under pressure to the
engaging surfaces of the bearings for the input
impeller of a supercharger 'comprising a hollow
shaft, means for delivering oil from one of the
input shaft, a sun-gear, a shaft for the sun-gear
bearings for the input shaft to the bearings for
>extending through lthe input shaft, bearings for
the sun-gear shaft >in the input shaft, a non
the input shaft, bearings in the input shaft for
,the sun-gear shaft, planet gears carried by the 75 rotatable tube forA delivering oil from the enga8-'
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ing surfaces of the other bearingfor the îinput
one of the clutches, a thrust bearing between the _
' tube and the sun-gear shaft, and means for con
shaft through the sun-gear shaft to one of the
ducting oil through the sun-gear shaft to said
clutches,_ a thrust _bearing between' the tube and
_the sun-gear shaft, and means for delivering oil
from the ñrst mentioned bearing for the input
shaft to the thrust bearing.
thrust bearing.
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10. In a two-speed transmission for driving the
» impeller of a supercharger comprisinga hollow
input shaft, a sun-gear, a shaft for the sun-gear
7. In a two-speed transmission for driving the
impeller of a, supercharger comprising a hollow
input shaft,- a sun-gear, a shaft for the sun-gear
extending through the input shaft, planet gears
carried bythe input shaft, a gear ring, a support
extending through the input shaft, bearings for 10 for the gear-ring, said gear-ring being provided _
with an output gear engaged by the planet gears,
the input shaft, bearings in the input shaft for
a plurality of bearings for the input shaft, a yfric
the sun-.gear shaft, planet gears carried by the
tion clutch for locking the sun-gear and its shaft
input shaft, an output gear-ring rotatable rela
against rotation, hydraulic means comprising a
tively to the input shaft and provided with a gear
engaged by the planet gears, a clutch for locking 15 cylinder and a piston for controlling the friction
clutch,‘a spring for retracting the piston, and a. .
the sun-gear and its shaft against rotation, and
'clutch for driving'the sun-gear shaft from the
-a clutch for driving the sun-gear shaft from the
input shaft; a lubricating system comprising ._
input shaft; a, lubricating system comprising
means for delivering oil under pressure tothe
means for delivering oil -under pressure tothe
engaging surfaces of the bearings for the input`
engaging surfaces of the bearings for the input
shaft, Va tube engaged by the spring extending
shaft, means for delivering oil from one vof the
- through the sun-gear- shaft, means for delivering . '
bearings for the input shaft to the bearings for
the sun-gear shaft in the input shaft, a non- . i oil into one end of the tube and from the vtube
to both óf the clutches, a thrust bearing between
rotatable tube for delivering loil from»_ the en~
the tube andthe sun-gear shaft, and means for
' conducting-'oil through the sun-gear shaft _to said
f gaging surfaces of the other bearing for the inputv
shaft through .the sun-gear _shaft to one-of the
clutches, a thrust bearing between the tube and
thrust bearing.
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' 11. In a two-speed transmission for driving'the
the sun-gear shaft, and means for delivering oil =
from the first mentioned bearing for'the input.V _'. impeller o_f asupercharger comprising a, hollow
input shaft, a. sim-gear, a shaft for the sun-gear
shaftto the‘thrust bearing'and from the thrust
bearing to one of the clutches.
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` extending through the input shaft, planet gears
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carried by the input shaft, a gear ring, a support
for the gear-ring said gear-ring being provided
with an output gear engaged bythe planet gears,
8. In a two-speed transmission for driving the'
impeller of a supercharger comprising a hollow
input shaft, bearings _for the input shaft, a sun
a plurality of bearings in the input shaft for the
sun-gear shaft, 'a friction clutch for locking’the
gear, a shaft for the sun-gear` extending through
the'input shaft, bearings in the inputA shaft for
‘ sun-gear and its shaft against rotation, hydraulic
the sun-gear shaft, planet gears vcarried by the
input shaft, an outputgear-ring rotatable rela- 3
means comprising a cylinder and a piston for
tively to the input shaft and- provided-with a> -„ controllingv the' friction c1utch,'a spring for `re
gear .engaged _by the planet'gears, a clutch for 40 tracting the piston, and a clutch for- driving the
sun-gear shaft from the input shaft; a. lubricat
ing system comprising means for delivering oil
under pressure to the engaging surfaces of the
lockingthe sun-gear and its v_shaft against‘rota
tion, and a clutch for driving the sun-gear shaft
from the input shaft; a lubricating'system com
prising means for delivering oil under pressure «~
to the engaging surfaces of the bearings for the
input shaft, means for delivering oil from one of
45
the bearings for the inputshaft tothe bearings
for the sun-gear shaft in the input shaft, a non
rotatablev tube for deliveringoil from the engag
ing surfaces of the other bearing for-the input
shaft through the sun-gear 'shaft' tobothof the
clutches, a thrust bearing betweenthe -tube and .
bearings for the input shaft, a tube engaged by _
the spring, extending through the sun-gear shaft
and connected to'receìve oil from the engaging
-surfaces of one of thej _bearings for the _input
shaft, and means' for delivering oil from the tube
to îone of the clutches, a thrust bearing between
the tube and the sun-gear shaft, and means for
_ conducting oil through the sun-gear shaft to said
'- thrust bearing.
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12. In a' two-speed transmission for driving _the
the sun-gear shaft, and‘mea’ns for delivering oil *_
impeller of a s'upercharger comprising a hollow 'i
from the first mentioned'vbearing forthe input"
to the thrust bearing and from the thrustbear 55 `input shaft, a sun-gear, a shaft for the sun-gearA _ I
ing to both of the clutches.
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9. In a two-speed transmission fordriving the
impeller of a supercharger comprising ahollow
input shaft, a sun-gear, a shaft for the. sun-gear
extending through the input shaft, planet gears
carried by the input shaft, a gear ring,- asupport
for the gear ring, said gear-ring being provided
with an output gear engaged bythe planetgears,
a plurality of bearings 'for the input shaft, afric-f
tion clutch for locking the _sun-gear'and its shaft '_
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extending through the input shaft, planet gears
carried by the input shaft, a gear ring, a support
‘for the gear-ring said gear-ring being provided
with an output gear engaged by the planet gears,
60 a plurality of bearings for the input shaft, bear
ings for the sun-gear shaft in the input shaft,` _
a vfriction clutch for locking the sun-gear audits
shaft against rotation, hydraulic means compris
Aing' a¿cylinder anda piston for controlling the
friction clutch, a springrfor retracting the piston,
-and a clutch för driving the sun-gear shaft, from .. _ - y _
against rotation, vhydraulic means _comprising a '
cylinder and a piston for vcontrolling the friction Í ’ the input shaft; a lubricating system comprising 'j ¿Y . Y l '
clutch, va spring for retracting the piston, and/a»v - means for delivering> oilunder pressure tothe
clutch fordriving the sun-gear shaft-from; the
input shaft; 'a lubricating system.- comprising
engagingsurfaces of the bearings for the input
shaft, aetube engaged bythesprinaextending
means for delivering oil _under pressure tothe
~ through Ithe' sunfgear shaft and connected to 1-e-"_`
engaging surfaces-of the bearings for- the input
shaft, a tube engaged by the spring, extending
through the sun-gear shaft, means for delivering
oil Ainto one end of the tube and fromthe tube to
ceivevoil from the engagingsurfaces of one of l
the bearings for the input shaft, and means for
delivering oil from the tube to both ,of the a thrust bearing between the'tubeandi '
75 clutches,
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the sun-gear shaft. and means for conducting
oil through the sun-gear shaft to said thrust
bearing.
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13. In a two-speed transmission for driving the
impeller of a, supercharger comprising a hollow
input shaft, a sun-gear, a shaft for the sun-gear
extending through the input shaft, Planet gears
carried by the input shaft, `a gear ring, a support
for the gear-ring, said gear-ring being provided
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12
gears and the stud-shafts, and extending radially
inwards of the outer portions of said' chambers
forpreventing sludge in the chambers from pass-lI
ing to the bearings for the planet gears on the
stud shafts.
16. In a two-speed transmission for driving the
impeller of a supercharger, comprising a, hollow
- input shaft, a sun-gear, a shaft for the sun-gear
extending through the input shaft, planet gears
with an output gear engaged by the planet gears, 10 carried by the input shaft, a. gear-ring, a support
for the gear-ring, said gear-ring being provided
a, plurality of bearings for the input shaft, a plu
with a gear engaged by the planet gears, asta
rality ofA bearings in the input shaft for the sun
gear shaft, a friction clutch for locking the sun j tionary bearing for the input shaft, a bearing
between the support and one end of the input
gear and its shaft against rotation, hydraulic
shaft, a stationary bearing for the support, a
means comprising a. cylinder and a piston for
clutch for locking the sun-gear and its shaft
controlling the friction clutch, a spring` for' re
against rotation, and a one-way clutch for driv
tracting the piston, and a clutch for driving the
ing the sun-gear shaft from the input shaft; a
sun-gear shaft from the input shaft; a lubricat
lubricating system including, means for deliver
ing system comprising means for delivering oil
ing oil under pressure through the stationary
under pressure to the engaging surfaces of the
bearing for the support tc the bearing between the
bearings for the input shaft, means for deliver
input shaft and the support, and means for de
ing oil from one of the input shaft .bearings
livering oil from the bearing between the vsup
through the input shaft to the bearings in the
port and the input shaft, through the sun-gear
input shaft from the sun-gear shaft, a tube
shaft to one of the clutches.
engaged by the spring extending through the
17. In a two-‘speed transmission for driving the
sun-gear >shaft and connected to receive oil from
impeller of a supercharger, comprising a hollow
the bearing surfaces ofthe other input shaft
input shaft, a sun-gear, a shaft for the sun-gear
bearing and to deliver oil to one of the clutches,
extending through the input shaft, planet gears
a thrust bearing between the tube and the sun
carried by the input shaft, a gear-ring, a support
gear shaft, and means for conducting oil from
- for the gear-ring, said gear-ring being provided
one of the bearings for the input shaft through
withva gear engaged by the planet gears, a sta
the sun-gear shaft to said thrust bearing».
tionary bearing for the input shaft, a bearing
14. In a two-speed transmission for driving the
between the support and one end of the input '
impeller of a supercharger comprising a hollow
shaft, a stationary bearing for the support, a
input shaft, a sun-gear, a shaft for the sun-gear
clutch for locking the sun-gear and its shaft
extending through the input shaft, planet gears
against rotation, and a one-way clutch for driv
carried b‘y the input shaft, a gear ring, a support
ing the sunf-gear shaft from the input shaft; a
for the gear-ring, said gear-ring being provided
lubricating system including means for deliver
with an output gear engaged by the planet gears, '
ing foil under pressure through the stationary
a plurality of bearings for the input shaft, a piu
.bearing for the support to the bearing between
rality of bearings for the sun-gear shaft in the
the support and the input shaft, and means for
input shaft, a friction clutch for locking the sun
delivering oil from the bearing between the sup
gear and its shaft against rotation, .hydraulic
port and the input shaft, through the sun-gear
'- means comprising a cylinder and a piston for
shaft to both of said clutches.
controllingthe friction clutch, a spring for re
18. In a two-speed transmission for driving the
tracting the piston, and a clutch for driving the
impeller of a supercharger, comprising a hollow
/ `sun-gear shaft from the input shaft; a lubricat
input shaft, a sun-gear, a shaft for the sun-gear
-ing system comprising means for delivering oil
extending through the input shaft, planet gears
under pressure to the engaging surfaces of the
carried by the input shaft, agear-ring, a support
bearings for the input shaft, means for deliver- _
for the gear-ring, said gear-ring being provided
ing oil from one of the input shaft bearings
with a. gear engaged by the planet gears,` a sta
through the input shaft to the bearings in the
tionary bearing for the input shaft, a bearing -be
input shaft for the sun-gear shaft, a tube en
tween the support and one end of the input shaft,
gaged by the spring extending through the sun
gear shaft and connected to receive oil from the 55 a stationary bearing for the support, a clutch
' and to deliver oil to bothl of the clutches, a thrust
for locking the sun-gear and its shaft against
rotation, and a one-way clutch for driving the
journalled in the input shaft, planet gears mesh-_
between the support and the >input shaft, through
bearing surfaces .of the other input -shaft bearing
sun-gear shaft from the input shaft; a lubricat
bearing between the tube and the sun-gear shaft,
ing system including means for delivering oil
and means for conducting oil from one of the
bearings for the input shaft through the sun 60 under pressure to the stationary bearing for the
support, and a non-rotatable tube extending
gear shaft to said thrust bearing.
r
through" the sun-gear shaft, for delivering oil
15. In a transmission comprising a hollow in
from the bearing for the support and the bearing
put shaft, a sun-gear, a shaft for the sun-gear
ing with the sun-gear, stud-shafts on which the 65 the sun-gear shaft to onev of the clutches.
19. In a two-speed transmission for driving the
planet gears are rotatably mounted and carried
impeller of a supercharger, comprising a hollow
by the input shaft, a bearing for. the input shaft
input shaft, a sun-gear, a shaft for the sun-gear
- and a gear ring meshing with the planet gears;
extending through the input shaft, bearings be- v
a lubricating system comprising means for deliv-‘
ering oil under pressure to the bearing for the 70 tween the sun-gear shaft and the input shaft,
input shaft, oil retaining chambers in the stud
shafts, ducts for delivering cil from-said bearing
for the input shaft into said chambers, and tubu
lar members in the walls of the stud-shafts for
‘ planet gears carried by the input shaft, a gear
ring, a support for the gear-ring, .said gear-ring
being provided with a gear engaged by the planet
gears, a stationary bearing for the input shaft, a»
` conducting oil to the bearings between the planet 75 bearing between the support and one end of the
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input shaft, a stationary bearing for the support.
14
through the sun-gear to the bearings inthe input
ishaft lfor the sun-gear shaft, a tube for delivering
oil from the stationary bearing for the support
and the bearing between the support and the in
ing the sun-gear shaftfrom the input shaft; a
lubricating system including means for deliver 5 put shaft,-through the sun-gear shaft to one of
the clutches, a thrust bearing for the tube in the
ing oil under pressure t0 the stationary bearing
sun-gear shaft, and means for conducting oil
for the support to the bearing between the sup
through the sun-gear shaft to the thrust bearing.
port and the input shaft, means for delivering oil
l
JOHN H. CARPENTER.
from the stationary bearing for the input shaft
a clutch for locking the sun-gear and its shaft
against rotation, and a one-way clutch for driv
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