close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2410929

код для вставки
Nov. l2, 1946.
s. s. cRAUs‘E
2,410,929
CRANK AND LUBRICATED MEANS FOR DRIVING THE SAME
Filed March 2, 1944
Patented Nov. l2,h 1946
2,410,929
UNITED STATES PATENT OFFICE'
2,410,929
onANK AND LUBRICATED MEANS Fon
DRIVING THE SAME
Y
Stephen S. Crause, Cleveland, Ohio
Application March 2, 1944, -senta No. 524,806
11 Claims.
(Cl. ’i4-605)
1
2
This invention relates to engines, and more
of expansion than the inner member, a perma
particularly to the driving connectionsv between
nent unison will be obtained between the bearing
engines such as are employed in driving auto
motive vehicles and the crankshafts of such en
ring and the inner member.
It has for one of its general objects to
provide, for engines of the type wherein the con
necting rods thereof are coupled to crank disks,
animproved manner of constructing and sup
porting'. the crank disks; also to provide an im
proved manner of connecting the pins at the
bases of the connecting rods with the said crank
disks. A still further general object of the in
vention is to provide an eiiìcient means for sup
plying lubricant to the bearings for said connect
~ gines.
ing rods.
`
I realize 'these objects in and through the con
struction and arrangement of parts shown in the
drawing hereof, wherein Fig. 1 represents a frag
`
Each of the inner members, except those `at
the extreme >ends of the crank assembly, are pro
vided with two angularlyv spaced cylindrical re
cesses I6 projecting thereinto from opposite sides
thereof, for4 the reception of the 'bearings'for the
ends of the connecting rod pins. Eachof the
said recesses is provided at its outer end with
a short annular shoulder Il extending radiallyr
inwardly from the cylindrical wall of such recess,
the inner wall of said shoulder constituting a stop
wall ,for positioning the outer race ring I8 of a
tapered roller bearing, the rollers whereof `are
indicated at I9 and the inner race ring 20 where
of surrounds a reduced end 2|b of the pin 2|”
at the base of the connecting rod 2|. A short
mentary sectional View through a portion of a
cylindrical wall Il'a extends outwardly from the
'crankcase, illustrating the manner in which the 20 inner end of the shoulder Il, the internal diam
pin at the'lower end of a connecting rod is con
eter of said wallr being greater than the external
nected to a pair of adjacent crank disks and the
diameter of the inner race ring 2l) and the rollers
manner in which the bearings for the ends of the
I9, for purposes of assembly; this construction
connecting rod are lubricated as well as theman
ner in which the crank disks are constructed
and mounted for >rotation within the crankcase;
Fig. 2 is a sectional view taken on the line 2-2
of Fig. 1 and looking in the direction ofY thear
also provides a chamber 22 „for lubricant beyond
.f theends of the pin and bearing, the said cham
ber being closed by a removable plate 23 kiitted
into the outer end thereof.
For the purpose of lubricating the wrist pin
Abearings of the connecting rod as well as the bear
rows; and Fig. 3V is a fragmentary sectional view
showing a modiñcation in the manner of supply 30 ings wherein the outer ends of the pins 2la are v
ing .lubricant to the bearings for the connecting
rod.
Describing the various parts by reference char
acters, and ñrst as shown in Figs. 1 and 2, I0 de
notes generally the bottom of acrankcase and I I
a portion. of the top thereof. The bottom I!) and
top II are preferably provided Vwith arcuate ribs
I2 and I2a projecting therefrom and adapted
jointly to form the outer races I2 and ` I2a of .a
mounted, I have provided the following construc
tion:
'
YEach connecting rod is provided with an axial
bore or passageway 24 extending upwardly to
the wrist> pin bearings (not shown) and also with
transverse bores or passages A25 extending out
wardlyl from the ¿central portion thereof.Y As
shown herein these, passages are connected at
their inner ends with eachother and with `the
roller bearing. I3 denotes generally each of a pair 40
'passage 24 and each extends axially through `the
of adjacent circular crank members, each of the
pin 2l“, .its outer end 'communicating with a
said members being shown herein as comprising
chamber
22. .For the purpose> of supplying lubri
an inner cylindrical .disk member I3a which is
cant to these passages, I employ an oil-resistant
made of light-weight material, -such as aluminum
or magnesium alloy, and which, in molding, is 45 hose 25 connected at >one end with an oil pump
(not shown) andhaving its opposite end com
cast within a bearing ring member I4 of metal
municating with the passages 2li and125 by means
having alower coeflicient of expansion, such as
of the connectingelements 2l and :28, the latter
iron, and which bearing ring members consti
element being threaded into the bottom of the
tute inner races for the rollers I5. For the pur
pose of securing proper interlocking between the 50. connecting rod and communicating with the ex
tension of the passage 24. It will be noted that
inner disk members and the surrounding inner
ring members, during the casting operation, the
the passage 24 which leads to the wrist pin ybear
inner surfaces of the latter are knurled, as indi
ings is of considerably greater cross sectional area
than that of the passages 25. This is due to the
cated at Illa. By making the external bearing
‘ring member of metal having a lower coefficient 55 fact that the bearingsfor the ends of the-pin
2,410,929
4
3
bers and means for supporting the same for rota
tion, of a connecting rod having a, pin at one
end thereof, and means for connecting the oppo
2|a require less lubricant than is the case with
the former bearings.
With the parts constructed and arranged as
described, the operation will be readily under
site ends of said pin with the said members, the
stood. As the cranks revolve, the hose 26 will be
free to rise and fall with the movements of the
connecting rod, and lubricant can at all times be
said means including a recess projecting into
each of said members from the pin-receiving sur
face thereof, a short shoulder projecting radially
inwardly from the outer end of each of said re
supplied therethrough to the connecting rod bear
ings and wrist-pinbearings. The crank disks
cesses and‘prov'iding a stop wall at the outer end
will revolve Within the roller bearings provided 10 of such recess, the said shoulder having an inte
rior wall extending outwardly through the oppo
site surface ofthe member, an outer race ring
member fitted within each recess and abutting
therefor, the latter bearings being lubricated by
splash lubrication.
In Fig. 3 I have shown -a modification of the
means for supplying lubricant to the connect-F , the stop wall formed by the shoulder in said re
ing rod bearings where the connecting rod is em 15 cess, an inner race ring member mounted on
ployed with certain types of airplane engines
each end of the said pin, anti-friction members
and wherein lubricant must be supplied to the
interposed between the race ring members, and
passage 24 above the pin proper and above the
a cover removably mounted within the interior
point where said passage intersects the passages
of Veach of said shoulders, the internal diameter
25. In such installations, I employ two hose 26, 20 of each shoulder being greater than the external
each of which is connected by members 2l and
diameter of the inner race ring member and the
28 with a short downwardly inclined passage 29
anti-friction devices supported thereby.
the lower end of which communicates with the
V5.v The combination, with a pair of crank mem
bers and means for supporting the same for ro
passage 24.
For convenience of description, the cylinder 25 tation, of a connecting' rodv having a pin at one
andpiston of the engine are considered to be
end thereof, and means for connecting the op
located above the crank disks, and the terms
posite ends of said pin with the said members,
“upper” and “lower” and “upwardly” and “down
the said means including a recess projecting into
wardly”> have been employed herein but without
each of said members from the pin-receiving sur
any intention thereby of limiting the use of'my 30 face thereof, a short shoulder projecting radially
invention to any particular location of the cyl
inwardly from the outer end of each of said re
inder and piston with reference to the crank
cesses and providing a stop wall at the outer end
case or to the bearings within which the crank
of such recess, the said shoulder having an inte
rior wall extending outwardly through the oppo
disks are mounted.
Having thus described my invention, what
35 site surface of the member, an outer race ring
claim is:
member fitted within the recess and abutting the
l. The combination, with a pair of crank mem
stop wall formed by the shoulder in said recess,
bers and means for supporting the same for ro
tation, of a connecting rod having a pin at one
«end thereof, and means for connecting the op
an inner race ring member mounted on each end
of the said pin, anti-friction members interposed
40 between the race ring members, a cover remov
posite ends of said pin with the said members,
said means comprising a seat carried'by each of
ably mounted within the interior of each of said
shoulders and each spaced from the outer end
said members,- the lsaid seats being opposed to
of the pin adjacent thereto thereby to provide
each other, an ‘outer race ring member ñtted
a chamber beyond the outer end of each of said
pins, the internal diameter of each shoulder be
ing greater than the external diameter of the
inner race ring member and the anti-friction de
vices supported thereby, and means for conduct
within each of said seats, an inner racel ring -
member mounted 0n each end of the said pin,
anti-friction members interposed between the
said race ring members, and means for conduct
ing lubricant'under pressure to the bearings con
stituted by said race ring members and said anti- .
friction members.
2. In the combination recited in claim 1, the
ing lubricant to the said chambers.
`
6. In the combination set forth in claim 5,
the means for conducting lubricant to the said
chambers comprising passages for lubricant
means for conducting lubricant under pressure
extending longitudinally of said pin and through
to the bearings comprising passages formed
the outer ends thereof and communicating re
within and extending longitudinally of the pin ,
to the said bearings, and a hose for lubricant
connected with the said passages.
3. The combination, with a pair of crank mem
bers and means for supporting the same forro
tation, of a connecting rod having a pin at one 60
spectively with the chambers provided between
the outer ends of the pin and the covers.
7. The combination, with a pair of crank
end thereof, and means connecting the opposite
ends of said pin with the said members, said
means comprising a seat carried by each of said
members, the said seats being opposed to each
other, anti-friction bearings mounted in said
seats and within which the opposite ends o_f the
pin are mounted, respectively, there being pas
sages extending longitudinally of said pin and
members and means for supporting the same
for rotation, of a connecting rod having a pin
at one end thereof, and means for connecting
the opposite ends of said pin with the said mem
bers, the said means including a -recess project
ing into each of said members lfrom the pin-re
ceiving surface thereof, a short shoulder pro
jecting radially inwardly from the outer end of
each of said recesses and providing a stop wall
at the outer end of such recess, the said shoulder
having an interior wall extending outwardly
through the opposite surface of the member, an
adapted to communicate at their outer ends with
the said'b‘earings, respectively, there being also .70 outer race ring member fitted within each re
a passage in the said connecting rod extending
longitudinally thereof for conducting lubricant
to wrist pin bearings, and a hose for lubrican
connected with thesaid passages.
'
`
’
cess and' abutting the stop Wall formed by the
shoulder in said recess, an inner race ring mem
ber mounted on each end of the said pin, anti
friction members interposed between the race
A4f. The combination, with a pair of crank mem-x 75 ring members, and a cover removably mounted
2,410,929
6
Within the interior of each of said shoulders and
ing through opposite sides of the connecting
each spaced from the outer end of the pin ad
rod and communicating With the passage ex
jacent thereto thereby to provide a chamber
tending longitudinally thereof at a point above
beyond the outer end of each of said pins, the
its intersection with the said bore, and hose
said pin having passages therein extending lon 5 connected with the passages which extend
gitudinally thereof and communicating at their
through opposite sides of the connecting rod and
outer ends, respectively, with the chambers
which communicate with the bore extending lon
formed beyond the outer ends of the pin, and
gitudinally thereof.
.
means for conducting lubricant to said passages,
10. The combination, with a pair of crank
said means comprising a hose for such lubricant 10 members and means for supporting the same
supply, and means for connecting the delivery
end of said hose with the said passages.
8. In the combination recited in claim 7, the
connecting rod being provided with a passage
for rotation, of a connecting rod having a pin
at one end thereof, and means for connecting
the opposite ends of said pin With the said crank
members, said means comprising opposed anti
extending longitudinally thereof for supplying 15 friction bearings carried by the said crank mem
lubricant to Wrist pin bearings and the said
bers and within which opposite ends of the said
passage communicating with the first mentioned
pin are mounted, there being chambers provided
passages and with the delivery end of said hose.
in said crank members beyond the anti-friction
9. The combination, with a pair of crank
bearings, and the pin having passages for lubri
members and means for supporting the same 20 cant extending longitudinally thereof to said
for rotation, of a connecting rod having a pin
chambers, respectively, and means for conduct
at one end thereof, and means connecting the
ing lubricant through said passages to said
opposite ends of said pin with the said members,
chambers.
said means comprising a seat carried by each of
11. The combination, with a pair of crank
said members, the said seats being opposed to 25 members and means for supporting the same for
each other, anti-friction bearings mounted in
rotation, of a connecting rod having a pin at one
said seats and within which the opposite ends
end thereof, and means for connecting the oppo
of the pin are mounted, respectively, the said
site ends of said pin with the said crank mem
pin having a bore extending longitudinally
bers, said means comprising opposed anti-fric
therethrough and providing passages extending 30 tion bearings carried by the said crank members
from the central portion thereof through the
and Within which opposite ends of the said pin
outer ends of said pin and adapted to communi
are mounted, there being passages extending
cate at their outer ends with the said bearings,
longitudinally of said pin and adapted to com
respectively, and the connecting rod having a
municate at their outer ends with the said bear
passage formed therein and extending longitudi 35 ings respectively, and means for conducting
nally thereof and intersecting the said bore at
lubricant to said passages.
its lower end, there also being passages extend
STEPHEN S. CRAUSE.
Документ
Категория
Без категории
Просмотров
0
Размер файла
491 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа