192 clutches and power-stop control – Clutches – Automatic
Reexamination Certificate
2006-01-31
2006-01-31
Lorence, Richard M. (Department: 3681)
192 clutches and power-stop control
Clutches
Automatic
C192S085060, C192S09300C, C180S249000
Reexamination Certificate
active
06991079
ABSTRACT:
A torque transfer mechanism having a transfer clutch connecting a pair of rotary members and a electrohydraulic clutch actuator for controlling engagement of the transfer clutch. The clutch actuator includes a hydraulic pump and a hydraulically-actuated rotary operator. The hydraulic pump draws low pressure fluid from a sump and delivers high pressure fluid to a series of actuation chambers defined between coaxially aligned first and second components of the rotary operator. The magnitude of the fluid pressure delivered to the actuation chamber controls angular movement of the second component relative to the first component for energizing a pilot ball ramp unit. The pilot ball ramp mechanism applies a clutch actuation force on a pilot friction clutch which energized a main ball ramp unit for applying a clutch engagement force to a main friction clutch. A hydraulic control system adaptively regulates the fluid pressure delivered to the actuation chamber.
REFERENCES:
patent: 4862769 (1989-09-01), Koga et al.
patent: 4895236 (1990-01-01), Sakakibara et al.
patent: 5119298 (1992-06-01), Naito
patent: 5224906 (1993-07-01), Sturm
patent: 5323871 (1994-06-01), Wilson et al.
patent: 5407024 (1995-04-01), Watson et al.
patent: 5423235 (1995-06-01), Botterill et al.
patent: 6158561 (2000-12-01), Sakai et al.
patent: 6315096 (2001-11-01), Dairokuno et al.
patent: 6318532 (2001-11-01), Gassmann
patent: 6422365 (2002-07-01), Arai et al.
patent: 6478708 (2002-11-01), Krisher
patent: 6520880 (2003-02-01), Fukushima et al.
patent: 6595338 (2003-07-01), Bansbach et al.
patent: 6641267 (2003-11-01), Ohishi et al.
patent: 6691845 (2004-02-01), Showalter
patent: 6745879 (2004-06-01), Dolan
patent: 2001/0011622 (2001-08-01), Arai et al.
patent: 2005/0153807 (2005-07-01), Puiu
patent: 2005/0160728 (2005-07-01), Puiu
patent: 2005/0167223 (2005-08-01), Puiu
patent: 2005/0167224 (2005-08-01), Puiu
patent: 62-18117 (1990-01-01), None
patent: 63-66927 (1990-03-01), None
Harness & Dickey & Pierce P.L.C.
Lorence Richard M.
Magna Powertrain Inc.
LandOfFree
Power transfer device with hydraulically-actuated clutch... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power transfer device with hydraulically-actuated clutch..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power transfer device with hydraulically-actuated clutch... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3553254