192 clutches and power-stop control – Clutches – Automatic
Reexamination Certificate
2005-09-20
2005-09-20
Lorence, Richard M. (Department: 3681)
192 clutches and power-stop control
Clutches
Automatic
C192S085060, C192S09300C, C180S249000
Reexamination Certificate
active
06945374
ABSTRACT:
A torque transfer mechanism having a multi-plate friction clutch connecting a pair of rotary members and a electrohydraulic clutch actuator for controlling engagement of the friction clutch. The clutch actuator includes a hydraulic pump, a hydraulically-actuated rotary operator, and a thrust mechanism. The hydraulic pump draws low pressure fluid from a sump and selectively delivers high pressure fluid to a series of actuation chambers and return 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 the thrust mechanism. The thrust mechanism applies a clutch engagement force on the friction clutch, thereby transferring drive torque from the first rotary member to the second rotary member. An electrohydraulic control system regulates the fluid pressure delivered to the actuation and return chambers.
REFERENCES:
patent: 4679463 (1987-07-01), Ozaki et al.
patent: 4862769 (1989-09-01), Koga et al.
patent: 4895236 (1990-01-01), Sakakibara et al.
patent: 5224906 (1993-07-01), Sturm
patent: 5366421 (1994-11-01), Hirota
patent: 5407024 (1995-04-01), Watson et al.
patent: 5423235 (1995-06-01), Botterill et al.
patent: 6183387 (2001-02-01), Yoshioka
patent: 6315096 (2001-11-01), Dairokuno et al.
patent: 6318532 (2001-11-01), Gassmann
patent: 6383109 (2002-05-01), Hofer
patent: 6397702 (2002-06-01), Yamada et al.
patent: 6422365 (2002-07-01), Arai et al.
patent: 6461267 (2002-10-01), Paielli
patent: 6478708 (2002-11-01), Krisher
patent: 6520880 (2003-02-01), Fukushima et al.
patent: 6544136 (2003-04-01), Duan
patent: 6595338 (2003-07-01), Bansbach et al.
patent: 6681913 (2004-01-01), Lee
patent: 6745879 (2004-06-01), Dolan
patent: 2001/0011622 (2001-08-01), Arai et al.
patent: 62-18117 (1990-01-01), None
patent: 63-66927 (1990-03-01), None
Lorence Richard M.
Magna Drivetrain of America, Inc.
LandOfFree
Active torque coupling with hydraulically-actuated ball ramp... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Active torque coupling with hydraulically-actuated ball ramp..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active torque coupling with hydraulically-actuated ball ramp... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3444921