Power steering apparatus

Details Power steering apparatus Power steering apparatus

2007-06-05

2007-06-05

Morris, Lesley D. (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

C180S417000, C180S441000, C180S442000

Reexamination Certificate

active

11044121

ABSTRACT:
An engine driven pump24is connected with a power steering motor assembly18. An electric motor36drives a pump34connected with the power steering motor assembly18. A control apparatus38, 44, 52, 62and72effects operation of the electric motor36to drive the pump34when the power steering motor assembly18requires fluid in addition to fluid supplied by the engine driven pump24.

REFERENCES:
patent: 3727404 (1973-04-01), Brewer
patent: 4627509 (1986-12-01), Adams et al.
patent: 4775022 (1988-10-01), Hirakushi et al.
patent: 5257670 (1993-11-01), Miller et al.
patent: 5267627 (1993-12-01), Frank et al.
patent: 5634527 (1997-06-01), Emori
patent: 6345682 (2002-02-01), Schoffler et al.
patent: 6546322 (2003-04-01), Williams
patent: 6929087 (2005-08-01), Sheppard

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