F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 48/00 (2006.01) B60K 17/35 (2006.01) B60K 23/08 (2006.01) F16D 43/284 (2006.01)
Patent
CA 2342226
A hydraulic coupling (38) for coupling a casing (46) and a pair of axle half shafts (40) of an auxiliary drive axle (36) of a vehicle drivetrain (22) includes a housing (44) for containing hydraulic fluid and the casing (46) rotatively mounted within the housing. A clutch (76) extends between the casing (46) and each of the axle half shafts (40) and is actuable to transfer torque therebetween by the operation of a pair of hydraulic pumps (90) that provide pumped hydraulic fluid to a pair of piston chambers (110) whose pistons (120) actuate the clutch. An outlet port (122) of each piston chamber (110) and an associated temperature compensated valve (124) and a pressure relief valve (126) of each piston chamber control the clutch actuation.
L'invention concerne un raccord hydraulique (38) destiné à être couplé à un boîtier (46) et à une paire de demi-arbres d'essieu (40) constituant un essieu moteur auxiliaire (36) de la transmission (22) d'un véhicule. Ce raccord se compose d'un logement (44) destiné à contenir un fluide hydraulique et dudit boîtier (46) monté rotatif dans le logement. Un embrayage (76), disposé entre le boîtier (46) et chaque demi-arbre d'essieu (40), peut être actionné afin de transférer le couple de rotation au moyen d'une paire de pompes hydrauliques (90) amenant un fluide hydraulique à une paire de jupes de piston (110) dont les pistons (120) actionnent l'embrayage. Un orifice de sortie (122) de chaque jupe de piston (110), une valve à température compensée correspondante (124) ainsi qu'une valve de détente (126) de chaque jupe de piston commandent l'embrayage.
Mclaren Automotive Group Inc.
Ridout & Maybee Llp
LandOfFree
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