192 clutches and power-stop control – Clutches – Automatic
Reexamination Certificate
2007-10-16
2007-10-16
Lorence, Richard M (Department: 3681)
192 clutches and power-stop control
Clutches
Automatic
C192S085060, C192S09300C, C180S249000
Reexamination Certificate
active
11178194
ABSTRACT:
A torque transfer mechanism having a multi-plate friction clutch connecting a pair of rotary members and an electrohydraulic clutch system for controlling engagement of the friction clutch. The electrohydraulic clutch system can include an actuator with first and second components with a plurality of actuation chambers that are employed to control the position of the second component relative to the first component. Relatively high pressure fluid may be directed through or around one or more bypassed portions of the actuation chambers when relatively low compressive clutch engagement forces are to be exerted on the friction clutch. The bypassed portions of the actuation chambers may be sequentially or progressively operated based on a position of the second component relative to the first component to increase an amount of force that is applied by actuator.
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: 6945374 (2005-09-01), Puiu
patent: 6991080 (2006-01-01), Puiu
patent: 2001/0011622 (2001-08-01), Arai et al.
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 USA, Inc.
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