F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
F16D 25/02 (2006.01) F16D 25/0638 (2006.01) F16D 43/284 (2006.01) F16H 48/30 (2006.01)
Patent
CA 2672950
A torque transfer coupling includes first and second rotary members. A transfer clutch operatively connects the first and second rotary members. A piston, disposed in a piston chamber, is actuable to engage the transfer clutch. A hydraulic pump in fluid communication with a sump containing hydraulic fluid has a first pump member fixed for rotation with the first rotary member and a second pump member fixed for rotation with the second rotary member such that relative rotation between the first and the second pump members generates a fluid pumping action. A first flow path supplies hydraulic fluid from the hydraulic pump to the piston chamber. A second flow path supplies hydraulic fluid from the piston chamber to a control valve for regulating the pressure of the hydraulic fluid supplied to the piston chamber. The second flow path includes an aperture extending through the second pump member.
L'invention concerne un couplage de transfert de couple comprenant un premier et un second élément rotatif. Un embrayage de transfert relie fonctionnellement le premier et le second élément rotatif. Un piston, disposé dans un cylindre, peut être actionné pour enclencher l'embrayage de transfert. Une pompe hydraulique, communiquant avec un puisard contenant du fluide hydraulique, comporte un premier élément de pompe fixé de manière rotative au premier élément rotatif et un second élément de pompe fixé de manière rotative au second élément rotatif de façon qu'un mouvement de rotation relatif entre le premier et le second élément de pompe produise une action de pompage. Un premier circuit d'écoulement achemine le fluide hydraulique entre la pompe hydraulique et le cylindre. Un second circuit d'écoulement achemine le fluide hydraulique entre le cylindre et une vanne de régulation pour réguler la pression du fluide hydraulique fourni au cylindre. Le second circuit d'écoulement comporte une ouverture qui s'étend à travers le second élément de pompe.
Burns Timothy M.
Ekonen Todd
Brandt Kerstin B.
Magna Powertrain Usa Inc.
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