Valve assembly in a hydraulic control for a ratio controller in

Details Valve assembly in a hydraulic control for a ratio controller in Valve assembly in a hydraulic control for a ratio controller in

1997-05-15

1998-11-03

Bonck, Rodney H.

192 clutches and power-stop control

Transmission control and clutch control

Common control

74606R, 137540, 192109F, B60K 4122, F16K 1502

Patent

active

058295607

ABSTRACT:
A hydraulic control has a valve body assembly in which a plurality of control valves are contained. The valve body has separate structures which are secured together by fasteners. Separator plates are positioned between the structure levels to establish flow passages and sealing elements between fluid passages in the separate structures. The separator plate has two conical valve seats formed therein which cooperate with two pintle valves to control the flow of hydraulic fluid to and from a ratio controller within a power transmissions.

REFERENCES:
patent: 2929401 (1960-03-01), Cowan
patent: 3363646 (1968-01-01), Foreman
patent: 4350179 (1982-09-01), Bunn et al.
patent: 4756213 (1988-07-01), Mainquist et al.
patent: 5299598 (1994-04-01), Quartana et al.
patent: 5752546 (1998-05-01), Yamashita

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