192 clutches and power-stop control – Clutches – Fluent material
Patent
1990-06-05
1992-06-02
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Fluent material
475231, 475249, F16D 3102, F16D 3108
Patent
active
051179563
ABSTRACT:
A hydraulic transmission coupling apparatus for transmitting a driving force to a front wheel driving shaft and a rear wheel driving shaft of a four-wheel drive vehicle, which is provided with a pump to generate hydraulic pressure corresponding to a rotation speed difference between both driving shafts, a reserving part for reserving hydraulic fluid, a fluid room disposed in the circulation passage of hydraulic fluid, and a piston located in the fluid room and sliding while subjected to the hydraulic pressure in the reserving part at one side thereof. When the volume of hydraulic fluid varies with the variation in fluid temperature, the piston slides and, as a result, the internal volume of the fluid room varies so as to absorb the volume variation of hydraulic fluid.
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patent: 4829769 (1989-05-01), Hiramatsu
patent: 4850447 (1989-07-01), Hirakushi et al.
patent: 4881626 (1989-11-01), Hiramatsu
patent: 4919248 (1990-04-01), Hiramatsu et al.
patent: 4995491 (1991-02-01), Hiramatsu et al.
Bonck Rodney H.
Koyo Seiko Co. Ltd.
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