F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/134, 74/184,
F16H 3/093 (2006.01) F16D 23/02 (2006.01) F16D 25/12 (2006.01) F16H 57/04 (2010.01)
Patent
CA 2032453
COUNTERSHAFT POWER TRANSMISSION WITH DOWEL PIN AND SEAL RING STRUCTURE Abstract of the Disclosure A power transmission has a housing comprised of an end support, a casing, an end cover, a converter housing, an input shaft, an output shaft and a pair of identically dimensional countershafts. A bushing and oil feed sleeve are positioned on each end of each countershaft for cooperating with the end support connecting the housing for alignment therebetween and with the casing for alignment therebetween. Each countershaft has a pair of ratio gears rotatably disposed thereon and meshing with respective output gears rotatable with the output shaft and a friction clutch is provided for each ratio gear. Four of the friction clutches which are disposed on the countershafts are identical in construction. A fifth clutch assembly, in line with the input shaft, can be shortened, if desired, by the elimination of one friction plate and one reaction plate. Each clutch has an apply piston which cooperates with respective lube passages formed in the shaft to control lubricant and cooling flow to each respective clutch during engagement. A reverse gear pair has one gear member connectible to one countershaft by a synchronizer clutch and one of the friction clutches and the other gear member drivingly connected with a ratio gear on the other countershaft. A park pawl secured to one of the reverse gear members is provided to obtain a park gear having a torque ratio greater than one with the output shaft thereby providing improved disengagement loading in the park system.
Latshaw Harry Earl
Ordo James Patrick
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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