Slip control mechanism for friction clutch in torque converter o

Details Slip control mechanism for friction clutch in torque converter o Slip control mechanism for friction clutch in torque converter o

1984-10-05

1987-02-03

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 0076, 192103R, B60K 4102, F16D 4706

Patent

active

046403957

ABSTRACT:
A slip control mechanism comprises a throttling path with a cross-sectional area variable according to the relative displacement of an output element of a torque converter and an output shaft. The throttling path is in communication via a fluid passage with a disengagement chamber opposing one side of a friction clutch. The other side of the friction clutch faces an engagement chamber. The disengagement chamber and the engagement chambers are so arranged as to control slippage of the friction clutch by pressure balance therebetween. The throttling path is formed in a specific geometry which assures moderate changes in the pressure balance between the disengagement chamber and engagement chamber in an intermediate throttling range. In the preferred construction, the throttling path is so constructed that the rate of change of the throttling cross-sectional area satisifes the inequality

REFERENCES:
patent: 3966031 (1976-06-01), Peterson et al.
patent: 3972397 (1976-08-01), Cheek
patent: 3977502 (1976-08-01), Chana
patent: 4002228 (1977-01-01), Borman
patent: 4169526 (1979-10-01), Malloy
patent: 4360090 (1982-11-01), Wonn
patent: 4373617 (1983-02-01), Mathlies

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