An improved third accumulator check valve is provided for the valve chamber which services feed oil to the release side of the intermediate servo cylinder of a turbohydramatic transmission system for motor vehicles wherein the intermediate band is released as direct clutches are applied. It comprises a positive seating valve in the chamber exhaust port, preventing exhaust port leakage which results in premature band application and clutch drag, and is characterized by a valve body which has more favorably disposed outer lift surfaces and an internal bore flow chamber with additional lift surfaces, said bore being provided further with a flow-released bore closure biasing the valve responsive to active flow pressure with assisted force into a continuously seated position.
申请公布号
US4502351(A)
申请公布日期
1985.03.05
申请号
US19830520119
申请日期
1983.08.08
申请人
GATES, GUY W.;BATES, JAMES F.;LARSEN, JOHN F.;LAW, BENJAMIN F.
发明人
GATES, GUY W.;BATES, JAMES F.;LARSEN, JOHN F.;LAW, BENJAMIN F.