192 clutches and power-stop control – Clutch and brake – Sliding operation
Patent
1995-05-22
1996-02-06
Ta, Khoi Q.
192 clutches and power-stop control
Clutch and brake
Sliding operation
192 871, 192 8716, 192 91A, F16H 6330, F16D 2510
Patent
active
054890136
ABSTRACT:
The present invention employs a hydraulically operable piston and intermediate member to control two clutches in a first planetary gear set. The first planetary gear set includes a first sun gear, a first planet gear, a first planet carrier and an inner ring gear. the first planet carrier includes a gear which drives a second planetary gear set resulting in rotation of a wheel hub. With hydraulic pressure applied to the piston and the intermediate member a first clutch is engaged locking an inner ring gear to a stationary outer ring effecting a high ratio reduction. With no hydraulic pressure applied to the piston and intermediate member a second clutch engages the first sun gear and the first planet carrier locking them together such that the first sun gear, first planet gear, first planet carrier and inner ring gear rotate in unison effecting a low ration reduction. With no hydraulic pressure applied, the first clutch is not engaged.
REFERENCES:
patent: 3744606 (1973-07-01), Bucksch
patent: 4010833 (1977-03-01), Brendel et al.
patent: 4534454 (1985-08-01), Brooks
patent: 5024636 (1991-06-01), Phebus et al.
Buuck Dennis L.
Dammon James R.
Fairfield Mfg. Co., Inc.
Ta Khoi Q.
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