Bleed closures for hydraulically limited slip differentials

Details Bleed closures for hydraulically limited slip differentials Bleed closures for hydraulically limited slip differentials

1999-05-28

2000-04-11

Estremsky, Sherry L.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Control of differential planetary gearing

475231, 475248, F16H 4826

Patent

active

060482869

ABSTRACT:
A pressure control system for a differential includes an input member and a pair of output members, a pump disposed to be driven in accordance with the difference between the speed of one of the output members and a reference, a chamber which is supplied by the pump, and at least one bleed passage from the chamber. A piston is responsive to hydraulic pressure in the chamber to operate a brake between the one output member and the reference. The bleed passage includes a plunger which is movable against a resilient bias in response to pressure in the chamber. Flow through the passage is blocked when the pressure on the plunger reaches a set pressure.

REFERENCES:
patent: 3361008 (1968-01-01), Fallon
patent: 3546969 (1970-12-01), Gibson et al.
patent: 3987689 (1976-10-01), Engle
patent: 4041804 (1977-08-01), Clark
patent: 5358454 (1994-10-01), Bowen et al.
patent: 5888163 (1999-03-01), Shaffer et al.

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