close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2407500

код для вставки
vPatented Sept. 10, 1946
2,467.49?
UNITED STATES PATENT oFF 1 ce.
2,40‘2497
FLUID TRANSMISSION
Joseph Jandas‘elâf., Highland Park, Mien., assigner
to' Bendix Aviation“ Corporation, South Bend,
1nd., a corporation- of Delaware
Application` October 13, 194:3,v Serial-No.; 506,024 '
y
1'3 Claims.
(c1. en_-»54 )'1
1_
2
This invention relates to transmissions and
more particularly to fluid transmissions wherein
'Fig 3 is a view similar to Fig. 2` illustrating
the vanes of the auxiliary impeller.
speed. controlled means are employed to Vary the
Fig.- 4 is a view similar to Fig. 2 illustrating.
power transmitting characteristics ofthe device.
the. vanes ofV the auxiliary turbine vanes.
An object of this invention resides in. the pro
Fig. 5 isa fragmentary sectional view ofA> a
vision of auxiliary fluid. energizing and energy
modifiedV form of vane- structure having helic'ally
absorbing fluid. deñectiïng. members having vanes
shaped vanes employed iny the auxiliary guide
of varying contour adapted to be positioned in
wheel, impeller and turbine members.
the` power transmitting flu-id circuit to vary the
Before explaining in detail the present inven
power transmitting characteristics of the device 10 tion it is to be understood that the invention is
in. accordance withv variations of speed oi" the
not limited in its application to the detailsY of>>
rotatable members.
~ construction» and arrangement of parts illustrat
A turther object ofthe-invention is to provide
ed. in the accompanyingr drawing, since the in
a huid-transmission. having an. impeller andv a
vention is capabie of other embodiments and- ofv
turbine cooperating to form a power transmit 15 being practiced or carried out in various ways.
ting duid circuit, wherein. an auxiliary impeller
Also it is to be understood that the phraseology
or terminology employed herein is Vfor the pur
and anv auxiliary turbine having high and lowI ,
speed rectifyi-ng vanes controlled by variationsY oi"I
speed of the impeller andV turbinev are provided
pose of description. and notr of' limitation.
Referring nowv more particularly to Fig. 1. itY
to vary the power transmitting characteristics` 20 will be observed that a driving shaft i0 has there
of the device.
on a hub |2- supporting a-nange I4A carrying an
Another object is to provide a.r ñuid transmisimpeller housing I6~ having on- its inner wall
sion including a- speedvv controlledV gui-de wheel
iiuid energizing vanes I8, 2-0` and' 22' supporting a
having spaced channeledv portions adapted. to op
shroud member 24.I This structure provides an
erate the device as a torque converter or as» a 25
impeller channel 26 between the housing 16T-.and
iiuid clutch.
the shroud 24 respectively.
Yet another object of the invention: resides in.
The housing’ |'6‘ has an axially extended. flange
the provision ofv a. fluid transmission having. an.
2'8 terminating in an inwardly directed flange
auxiliary impeller provided withv contoured vanes
30. It will be apparent that the impeller
ofY varying curvature driven by a main impeller 30 housing It' and the flanged portions 28> andmember and- controlled by speed responsive
3U' mayV be formed as separate elements if de
means to vary the Huid energizing characteristics.
sired and attached together in any suitable Inan
of' the device.
ner as by means of. bolts.
Y
Another obj'ectv resides in the provisionr of- al
A driven shaft 32` preferably aligned with the
fluid. transmission having an» auxiliary turbine ‘ driving sha-ft I'ÍJ- has thereon a» hub 3.4V secured
provided withl vanes oi varying contour adapted
against displacement as by a key 36?. The hub ,
to be positioned. in the power- transmitting fluid?
34 has a turbine web 38 carrying suitable energy
absorbing vanes 40,42 and 46 securedto a shroudv
circuit to vary the: energy absorbing.A characteris-À
member 48'. This structure provides a turbinev
tics of the device in accordar'rce` with variations
channel 50' between the web and shroud 38' and
of speed of: a turbine member'.
48 respectively.
,
.
Other objects and advantages of this'- inven
The impeller channel- 263 andthe turbine chan
tion. will“ be apparent from the: following' detailed
nel. 50 cooperate to provide a power transmit
description considered in connection with the
ting huid circuit whereby fiuid may loe` energized
accompanying drawing, submitted for purposes
of.' illustration oniy and not' intended to denne 45 in the impeller channel andthe energy absorbed
from the circulating fluid inthe turbine channel:
the scope of the invention, reference being had
to- transmit power from the driving shaft.> Hl to
for' that purpose" to the- subjioine‘d claims.
In the drawing wherein similar reference char
acters refer to similar parts throughout the sev
eralviews':
y
Fig. I i'sv a longitudinal sectional View of a~
transmission embodying the present. invention.
Fig. 2 is a.. diagrammatic view illustrating. the
blades ofthe guide wheel.. member.
`
the driven shaft 321.
A stationary member 52 receiving the driven»
50 shaft' 32 has helical> threads 54 for the reception
of a guide wheel hub 56 having internal helical
threads' 58‘ meshing withthe threads 54 so that
the guide wheel may shift' axially on the sta
tionary member between spaced stop- members
55 60- and 62. The guide wheel hub 56" has a ñange
2,407,497
3
64 supporting a guide wheel @il having spaced
channels 58 and 'lil adapted to be introduced into
the power transmitting fluid circuit.
The channel 'It is provided wi-th vanes 'l2 of
relatively large cross section embodying consider
able curvature .as illustrated in Fig. 2 to deflect
the fluid issuing from the turbine .channel 5i! and
rectify its direction of ilow to operate the device
as a torque converter so as to transmit multi
plied torque at reduced speed.
The 4channel 63 is provided with vanes 'F4 of a
smaller cross section embodying less curvature
to decrease the deflection of the fluid to operate
the device as a fluid clutch to transmit power at
4
wheel 65 in accordance with the position of the
auxiliary impeller 'i6 to provide speed control
means for the guide wheel. One desirable form
of such control means comprises an extension
|65 on »the auxiliary impeller supporting a flange
'F8 having a rounded edge lili] received by a slot
H0 in the guide wheel hub `5_6 to insure move
ment of the guide wheel. 66 with the auxiliary
impeller '15.
It will be apparent that the angle of the helical
threads 54 and 58 may be varied .to obtain the
desired operating characteristics. If desired the
helical threads 515 and 58 on the stationary mem
ber 52 and the guide wheel hub 56 may be dis
higher speed with substantially no torque multi .15 pensed with, and the hub merely slide axially on
the stationary member.
The turbine hub S4 has an axially extended
Preferably interposed between the guide wheel
portion VI |2 externally splined as at lill for the
E6 and the main impeller channel 2B is an aux
reception of an internally splined radially ex
iliary impeller 16 carried by a ilange 'it supported
plication.
concentrically with relation to the stationary
member 52. The auxiliary impeller member 'i6
is provided with spaced channels 80 and S2 [to
vary the energizing characteristics of the device.
The channel 82 is adapted to be introduced in
the power transmitting ñuid circuit when the de
tended flange ||5 carrying an auxiliary turbine
H8. The turbine H8 has spaced channels |25)
and |22 adapted to be successively introduced in
.the power transmitting fluid circuit when the de
vice is operating as a torque converter or as a
fluid clutch.
Speed responsive actuating means may be pro
vice is operating at relatively slow speed as a
vided V«to control the auxiliary turbine H3 rela
ltorque converter to transmit multiplied torque.
tive to the power transmitting fluid circuit. One
This channel 82 is provided with fluid deflecting
desirable form of such control means comprises
varies 860i relatively large cross-section embody
a bell-crank IZA pivoted Vat §26 on the turbine
ing considerable curvature as illustrated in Fig. 3. 30 web
38. One end of the bell-crank |24 is con
These vanes 86 lact as low speed rectifying vanes
nected through a link |28 to the flange IIS to
to deflect the fluid, imparting a desired amount
move it on the splines H4 of the axially hub'ex
»of energy thereto and inducing it _to enter the
tension portion H2. The other end of the bell
main impeller channel 2S at such lan angle that
crank |24 is provided with .a weight |30 adapted
turbulence is minimized.
to swing outwardly under the influence of cen
The channel Sil is provided with high speed
trifugal force to shift the auxiliary turbine to
rectifying vanes 84 as illustrated in Fig. 3 of
ward the left as viewed in Fig. 1 to introduce the
smaller cross-section to deflect the power trans
channel |22 into the fluid circuit during high
mitting fluid to minimize turbulence -and impart
a desired degree of power thereto when the de 40 speed operation when the device is operating as a
fluid clutch. A spring §32 interposed between
vice is operating as a fluid clutch with the chan
the flange | I6 and a stop member |34 is provided
neled portions E8 of the guide wheel member Y(it
to yieldingly urge the auxiliary turbine i I8 to in
in the power transmitting fluid circuit.
troduce the channeled portion |20 in the fluid cir
Driving means are provided between the main
cuit to operate the device as a torque converter.
impeller and 4the `auxiliary impeller member 16.
The channel |29 of the auxiliary turbine H8
This driving means may be of any desired form
is provided with low speed rectifying vanes |35
such for example as spaced pins 88 carried by
of relatively large cross section embodying con
the flange 30 of the impeller housing I5 and ex
siderable curvature to absorb a relatively high
tended through spaced apertures 90 in the flange
proportion of power from the circulating fluid
18 _of the auxiliary impeller member 'l5 in such
a manner as to drive the auxiliary impeller car
when the device is operating as a torque converter
|00 formed inthe auxiliary impeller member i6.
The opposite ends of the bell-crank 92 is pro
vided with a weight |92 adapted to swing out
wardly under the influence of centrifugal force
caused by rotation of the impeller housing I6
through. The auxiliary turbine carrying flange
and to deflect the fluid in such a manner as to
rying flange 18; It will be noted that this driv
minimize iluid turbulence as it enters the main
ing connection permits the flange 18' to move axi
turbine.
ally relative to the driven shaft 32 and the sta
The channel |22 is'provided with high speed
tionary member 52 to successively introduce the
rectifying vanes |38 of smaller cross section em
channels 8i) and 82 in the power transmitting
bodying less curvature to absorb a lesser degree
fluid circuit.
of power from the power transmitting fluid when
Speed responsive means may be provided to
the device is operating as a fluid clutch to trans
control the position of the auxiliary impeller
member 16 relative to the fluid circuit. One de 60 mit power with substantially no torque multi
plication.
>sirable form of a suitable speed responsive means
The left side of the turbine web 33 is provided
comprises a bell-crank S2 pivoted at S4 on an arm
with spaced calibrated oriilces |60 to permit the
95 carried by the impeller housing I6 and having
flow of a predetermined quantity of fluid there
an actuating projection 98 extending into a slot
to >actuate the auxiliary impeller member 16
against the resistance of a spring |04 so as to
introduce .the channel 86 into the power trans
mitting fluid circuit when the device is operating
as a fluid clutch.
.
|56 is also provided with spaced orifices |42 to
permit predetermined quantities of fluid to flow
therethrough to subject the flange 'l i6 to prede
termined pressure urging it toward the right as
Viewed in Fig. l to introduce the channel |20
into the power transmitting fluid circuit when
the device is operating as a fluid clutch.y
_
The right side of the turbine web'ßß isal'so
provided with calibrated orificesv |43 to permit
Means may be provided to control the guide 75 a predetermined quantity of fluid to flow there
alcance
v5
,
6
through to exert force on the inner surface of
the guide wheel carrying' flange 64’. The flange
the; load onthef driven: shaft 3.2, or to an increase
in the power `applied tothe driving shaft I 0,. the
Y64 4 and ,the auxiliary impeller’ carrying l flange- 'I‘8= .
weight |2301 oscillates. 'the bell-crank I2Í4 carried
are provided with calibrated orifices IM and M6
by the turbine web 38 in the clockwise direction
to subjectJ these flanges to substantially prede Cil to shift the. auxiliary turbine IIS. toward vthe
termined fluid.~ pressures urging them toward -the
left as viewedi in- Figfl to introduce the channel
high speed low load torque-converter position of
I22 having the fluiddeñeoting vanes 138.? (Fig. 4)’
operation».
'
of thu-mery cross section» and less curvature into
The operation is as follows: Power applied to
the power transmitting Vfluidi circuit whereupon
the driving shaft I0 rotates the impeller housing 10 decreased power >is absorbed-fromy the fluid by
I6 to energize fluid and move- it in the direction
the auxiliary turbine member while the device is
of' theà arrow’lii?ï. Energy imparted to the» fluid
operating asa fluid clutch.
'
is absorbed by the vanes ¿i6-,- 4&2v and #6' carried by
In the _embodiment- of the invention» illustrated
theturbin-e web 38, andy this powerv is transmitted
in Fig. 5- the guide wheel 66- is provided with fluid
through thetm-bine hub 34' to theV driven shaft 3'2.
deflecti'n'g vanes Iîßll of hel-ical form. The left
When power is being transmitted at low speed
hand end of the vanes IE6-are of relativelylarge
as when torque multiplication isv desiredY toY trans
cross section and- embody considerable curvature '
mit increased torque at reduced speed, the spring
as illustrated at 'I2 in Fig. _2` for operating the'
|64 urges thebell-crank 92' in a counterclock-wise
device as a torque converter.
The cross section
direction about its pivot 5354 to introduce the-«chan 20 of- the vanes |60 and their angle of curvature
nel 'I0 of the guide wheel 6€, and the channel" 62`>
progressively decrease toward the righ-t and at
ofthe auxiliary impeller T6 into the power trans
the right hand portion embody a crossv section
mitting iluid circuit'.
and curvature as illustrated at T4 in Fig. 2ï for
The guide> Wheel vanes> 'l2 (Fig. 2) of large
operating the device as a fluid clutch.
curvature deilect the fluid in such a manner that
The auxiliary impellerV ‘I6 is provided with heli
torque may be multiplied to operate thel device as
cally 'shaped vanes |62 having large cross sec~
a torque converter to transmit increased torque
tional area and large curvature at the left end
to the driven shaft 32 at reduced speed. The low`
portion as illustrated at 66 in Fig'. 3. The cross
speed rectifying vanes 86 (Fig. 3) of the auxil
section and curvature of the auxiliary impeller
lary impeller i6 impart energy tov the fluid issu
vanes progressively changes to the right as viewed'
ing fromthe guide wheel channel 'lil and direct
in Fig.v` 1 and at Ythe right hand end embodies
it tothe main impeller channel 26 at a desired
crossv section and curvature asA illustrated» at 8c
angle to minimize fluid turbulence. During- this
of Fig. 3`.
phase- of the operation the channel F29` of the
The auxiliary turbine II I8 is provided» with vanes
auxiliary turbine IIS isV in the power'transmitting
Itâ of helical form having cross section and cur
fluid circuit whereupon the vanes i361 (Fig. 4) of'
vature at the leftA as illustrated at F36 in- Fig. 4
large curvature are effective to absorb a relatively
high proportion of power from the power trans
mitting fluid before it flows into the main tur
and decreases in cross section and curvature to
lthe right as illustrated at |38- of Fig. 4. Where
thel helically shaped vanes are employed on the
bine channel 5D where the' remaining extractible 40 guide wheel, auxiliary impeller and turbine, more
portion of the power is absorbed from the ñuid.
accurate> control of lthe power transmitting char
As the load. on the turbine shaft 32' decreases, ‘
acteristics is'possible.
‘
or` the power- applied tothe driving shaft Hl in
This application is in part a continuation of
creases to such a point that' torque multiplica
my copending applications, Serial No. 366,686, filed
tion is no longer. necessary', the impeller'v and tur 45 November 22', 1940, now abandoned, which is
bine' speed up. The Weight |02' on the bell-crank
itself va continuation of' my Patent No. 2,222,618,
92' moves the bell-crank 92 in the clockwise direc
and Serial No. 358,960, filed September 30', 1940.
tion thereby shifting the channel 68 of the guide
Iclaim:
Wheel 66 and the channel 86 ofthe auxiliary im
1. A fluid transmission comprising an impeller,
peller into the power transmitting iluid circuit. 50 a turbine cooperating with the ,impeller to form
The vanes T4 (Fig. 2) in the guide wheel chan
a fluid circuit, an auxiliary impeller and a guide
nel 68 exert decreased deflection on the power
wheel interconnected therewith each including a
transmitting. fluid and direct it to the auxiliary
plurality of spaced channels having rectifying
impeller channel 86' in such a manner that- the
device operates as a fluid clutch to transmit pow
er from the driving shaft Iii to the driven shaft
vanes adapted to be alternately introduced. in the
fluid circuit, and speed responsive means control
ling the auxiliary impeller to> position one of said
spaced channels- in the fluid circuit'.
2. A iluid transmission comprising an impel
ler,V a turbine cooperating with the impeller to
32. with substantially no torque multiplication.
‘The vanes 84 (Fig. 3) in the channel 80 of the
auxiliary impeller 16 exert less deflecting force
on the iluid and therefore impart thereto a lesser 60 form a fluid circuit, an auxiliary' impeller, an
degree of energy.
.
It will be noted that the guide Wheel B6 is
moved axially relative‘to the fluid circuit by the
actuating portion I U8 of the ilange |06 carried by
the auxiliary impeller flange 18. Since the aux
iliary impeller ‘I6 is controlled by speed respon
sive means, the position of the guide wheel mem
ber B5 is also controlled- by speed responsive
means.
auxiliary turbine, and a guide wheel each having
a plurality of spaced channels with rectifying
vanes therein adapted to be alternately introduced
in the fluid circuit, and speed responsive means
for control of the auxiliary impeller, the auxiliary
turbine and the guide wheel.
3. A fluid transmission comprising a driving
shaft, a driven shaft, an impeller and a turbine
associated with the driving and driven shafts and
cooperating to form a fluid circuit, an auxiliary
impeller movable in the fluid circuit, a station
ary member, a guide wheel on the stationary
member interconnected with the auxiliary im
peller and movable in the fluid circuit, and speed
As the device speeds up due to a reduction of 75 responsive means controlled :by the speed of ro
The driving pins 88 carried by the flange 36
of the impeller housing I6 engaging in the aper
tures 90 of the auxiliary impeller carrying flange
‘I8 serve to rotate the auxiliary impeller 'I6 with
the impeller housing I6 and-driving shaft I 0.
2,407,497
7
tation of the impeller to move the auxiliary im
peller and the guide wheel in the ñuid circuit to
operate the device as a torque converter or as a
turbo
clutch.
.
,
,
>
4. A fluid transmission comprising driving and
driven shafts, an impeller and a turbine associ
ated with the driving> and driven shafts and co
operating to form a power transmitting fluid cir
cuit to selectively operate the device as a torque
converter or as a fluid clutch, and speed respon
sive means under the influence of the speed of
rotation of the driving shaft to control said guide
wheel member.
9. A fluid transmission comprising driving,
driven and stationary members, an impeller, a
turbine and a guide wheel carried by the driving,
driven and stationary members and cooperating
cuit, a stationary member, a guide wheel shiftable
on the stationary member having a plurality of l0 to Vform a power transmitting fluid circuit to
transmit power as a torque converter or as a
spaced ñuid channels adapted to be alternately
fluid clutch, an auxiliary impeller interconnected
introduced in the fluid circuit to vary the power
with the guide wheel, an auxiliary turbine, and
transmitting characteristics Vof the device, and
speed responsive means controlling the auxiliary
means for automatically shifting theguide wheel
impeller, the guide wheel, and the auxiliary
under the influence of the fluid in the circuit and
turbine.
the speed of rotation of the impeller.'
_
10. A fluid transmission comprising driving
5. A fluid transmission comprising an impeller,
and driven shafts, an impeller and a turbine car
a turbine cooperating with the impeller to form
ried by the driving and driven shafts and co
a fluid circuit, a stationary member, a guide
Wheel having a plurality of spaced channels 20 operating to form a power transmitting fluid cir
cuit, an auxiliary impeller having vanes of vary
adapted to be successively introduced in the fluid
ing contour to vary the energy imparting char
circuit, motion transmitting means between the
acteristics of the impeller, driving means between
guide Wheel and the stationary member, and
the impeller and the auxiliary impeller, a guide
means controlled jointly by the speed of the im
wheel interconnected with the auxiliary impeller,
peller and the fluid reaction in the fluid circuit
and speed responsive means under the influence
controlling movement of the guide wheel by the
motion transmitting means.
6. A fluid transmission comprising driving and
of the speed of the impeller controlling the po
sition of the auxiliary impeller and the guide
Wheel.
driven shafts, an impeller and a turbine associ
11. A fluid transmission comprising impeller
ated with the driving and driven shafts and co 30
and turbine members cooperating to form a power
operating to form a power transmitting fluid
transmitting fluid circuit, a stationary member,
circuit, a shiftable auxiliary impeller connected
a guide wheel shiftably mounted on the station
to the driving shaft, a shiftable auxiliary turbine
ary member having fluid deflecting vanes of
connected to the- driven shaft, and speed respon
sive means under the influence of the> speeds of 35 varying contour to operate the transmission as
a torque converter or as a fluid clutch, an auxil
rotation of the driving and driven shafts opera
tive to shift the auxiliary impeller and turbine
axially with respect to the shafts.
iary impeller movable concomítantly with the
guide wheel, and speed controlled means under
the influence of the speed of the impeller con
7. A fluid transmission comprising an impeller,
a turbine cooperating with the impeller to form 40 trolling the guide Wheel and auxiliary impeller.
12. A fluid transmission comprising an im
a fluid circuit, an auxiliary impeller and a guide
peller and a turbine cooperating to form a power
wheel interconnected with the auxiliary impeller
transmitting fluid circuit, an auxiliary turbine,
each including a plurality of spaced channels
an auxiliary impeller, and a guide Wheel each
having vanes therein adapted to be selectivelyV
having fluid deflecting vanes of varying contour
introduced in the iiuid circuit to vary the energy
and each shiftable in the fluid circuit, and speed
transmitting characteristics of the transmission,
responsive means controlling shifting movements
and speed responsive means under the influence
of the auxiliary turbine, the auxiliary impeller
of the speed of the driving shaft controlling the
and the guide wheel.
auxiliary impeller to selectively introduce the`
13. A fluid transmission comprising an impel
spaced channels in the fluid circuit.
ler and a turbine cooperating to form a power
8. A fluid transmission comprising driving
transmitting fluid circuit, a guide wheel, an aux
and driven shafts, impeller and turbine wheels
iliary impeller interconnected therewith, and an
associated with the driving and driven shafts
auxiliary turbine each having fluid deñecting
and cooperating to form a power transmitting
vanes of varying fluid deflecting characteristics
fluid circuit, an auxiliary impeller operably con
shiftable in the nuid circuit to vary the power
nected to the driving shaft, an auxiliary turbine
transmitting characteristics of the transmission,
operably connected to the driven shaft, speed re
and means controlled by fluid reaction in the
sponsive means under the influence of the speeds
fluid circuit and centrifugal force for automati
of rotation of the driving and driven'shafts con
trolling the auxiliary impeller and turbine mem 60 cally shifting the guide wheel, the auxiliary im
bers respectively, a stationary member, a guide " peller and the auxiliary turbine.
wheel member associated with the stationary
JOSEPH JANDASEK.
member and movable relative to the fluid cir
Документ
Категория
Без категории
Просмотров
0
Размер файла
760 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа