Planetary gear transmission systems or components – Differential planetary gearing – Bevel gear differential
Reexamination Certificate
2006-07-18
2006-07-18
Lewis, Tisha (Department: 3681)
Planetary gear transmission systems or components
Differential planetary gearing
Bevel gear differential
C475S239000, C475S150000, C475S099000, C475S108000
Reexamination Certificate
active
07077779
ABSTRACT:
A torque transfer assembly for a motor vehicle comprises a ring gear subassembly and a differential subassembly rotatably supported in said ring gear subassembly, a friction clutch pack for coupling the ring gear subassembly to the differential subassembly, and a hydraulic clutch actuator for selectively frictionally loading the clutch pack. The hydraulic clutch actuator includes a variable pressure relief valve assembly to selectively control the friction clutch pack. The variable pressure relief valve assembly includes a valve closure member, a valve seat complementary to the valve closure member, and a electro-magnetic actuator for engaging the valve closure member and urging thereof against the valve seat with an axial force determined by a magnitude of an electric current supplied to the electro-magnetic actuator so as to selectively vary a release pressure of the pressure relief valve assembly based on the magnitude of the electric current.
REFERENCES:
patent: 2730184 (1956-01-01), Peterson
patent: 4860208 (1989-08-01), Bantle
patent: 4989686 (1991-02-01), Miller et al.
patent: 5002147 (1991-03-01), Tezuka et al.
patent: 5197566 (1993-03-01), Watanabe et al.
patent: 5259476 (1993-11-01), Matsuno et al.
patent: 5297994 (1994-03-01), Suzuki et al.
patent: 5964126 (1999-10-01), Okcuoglu
patent: 6059680 (2000-05-01), Yoshioka
patent: 6210299 (2001-04-01), Yoshioka
patent: 6487486 (2002-11-01), Anderson
patent: 6598946 (2003-07-01), Nagae
patent: 6733411 (2004-05-01), Kaplan et al.
patent: 6770005 (2004-08-01), Aikawa et al.
patent: 2001/0027905 (2001-10-01), Taureg
patent: 2005/0037885 (2005-02-01), Schrand
Grogg John A.
Kaplan Martin
Wudy Jeremy J.
Yoshioka Jun
Berenato White & Stavish
Lewis Tisha
Torque-Traction Technologies Inc.
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