Rapid apply servo for a brake band of an automatic transmission

Details Rapid apply servo for a brake band of an automatic transmission Rapid apply servo for a brake band of an automatic transmission

1996-11-04

1998-01-27

Poon, Peter M.

Brakes

Wheel

Transversely movable

91 29, 91 32, F16D 5100

Patent

active

057114030

ABSTRACT:
A servo for operating a brake band in an automatic transmission includes a transmission casing and servo cover defining a servo cylinder, a servo piston supported for displacement within the cylinder, first and second sealed volumes within the cylinder, a valve for connecting the fluid sump to one pressure area and for closing that connection and opening a connection to line pressure while maintaining the first pressure area connected to line pressure.

REFERENCES:
patent: 2859593 (1958-11-01), Brunot
patent: 4111283 (1978-09-01), Hastings, Jr.
patent: 5544565 (1996-08-01), Van Selous

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