Clutch operation control system for fluid torque converter of ve

Details Clutch operation control system for fluid torque converter of ve Clutch operation control system for fluid torque converter of ve

1984-06-01

1986-10-28

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192103R, F16D 4706

Patent

active

046193502

ABSTRACT:
A clutch operation control system for a fluid torque converter of a vehicular transmission in which the fluid torque converter is equipped with a clutch for mechanically connecting the input side and output side of said torque converter. The clutch has its clutch plate supplied at its one side with oil pressure in a control chamber to release the clutch and at its other side with the torque converter oil pressure in said fluid torque converter for operating the clutch by the differential pressure across the clutch plate. An oil line leading to the control chamber is connected at a vehicular speed equal to or higher than a predetermined level to an oil drain port by means of a control valve to operate the clutch with an engaging force of the torque converter pressure. The clutch plate has an orifice for providing communication between the two sides of said clutch plate. The control valve is formed with a throttle portion for throttling the communication passage between the oil line to the control chamber and said drain port in a relatively low vehicular speed range equal to or higher than said predetermined level for allowing some slippage of the clutch.

REFERENCES:
patent: 3252352 (1966-05-01), General et al.
patent: 3998244 (1976-12-01), Bentley
patent: 4313467 (1982-02-01), Lang
patent: 4398555 (1983-08-01), Taylor
patent: 4431094 (1984-02-01), Parthuisot et al.
patent: 4506773 (1985-03-01), Schott

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