Pressure control system for lock-up clutch in automotive automat

Details Pressure control system for lock-up clutch in automotive automat Pressure control system for lock-up clutch in automotive automat

1990-09-21

1992-02-25

Braun, Leslie A.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 33, 192 331, 192 333, F16D 3316

Patent

active

050905279

ABSTRACT:
A pressure control system for a lock-up clutch includes a variable flow restriction orifice disposed in a lubricating circuit. The variable flow restriction orifice is operated depending upon a discharge rate of an oil pump so that working fluid flow through the lubricating circuit is restricted when the discharge rate of the oil pump is smaller than a predetermined value.

REFERENCES:
patent: 4607731 (1986-08-01), Sugano
patent: 4618038 (1986-10-01), Ogasawara et al.
patent: 4650047 (1987-03-01), Nishikawa et al.
patent: 4828084 (1989-05-01), Hasegawa et al.
"Jidosha Kogaku Extra Edition", vol. 37, No. 7, pp. 214 to 249.

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