Hydraulic control apparatus for maintaining a filled condition f

Details Hydraulic control apparatus for maintaining a filled condition f Hydraulic control apparatus for maintaining a filled condition f

1994-05-27

1996-04-09

Ta, Khoi Q.

192 clutches and power-stop control

Clutches

Operators

74606R, 13762569, F16D 2514, F16H 6100

Patent

active

055052878

ABSTRACT:
A hydraulic control apparatus for a hydraulically operated vehicular transmission provided with hydraulic engaging elements has a control valve provided with a drain port, and oil discharge passages which are connected, at the time of disengagement of the hydraulic engaging elements, to working oil passages which are in communication with the hydraulic engaging elements. The hydraulic oil to be discharged from the drain port of the control valve is supplied to the oil discharge passages. The apparatus is provided with an oil reservoir for storing therein the hydraulic oil to be discharged from the drain port of the control valve. The oil discharge passages are connected to the oil reservoir.

REFERENCES:
patent: 3683618 (1972-08-01), Schaher et al.
patent: 4499789 (1985-02-01), Kuramochi et al.
patent: 4570511 (1986-02-01), Nishimura et al.
patent: 5327800 (1994-07-01), Van Selous
patent: 5379874 (1995-01-01), Fujita et al.

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