Integral power steering apparatus

Details Integral power steering apparatus Integral power steering apparatus

2005-05-24

2005-05-24

Lerner, Avraham (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

C180S433000, C180S439000, C180S441000, C091S374000

Reexamination Certificate

active

06896093

ABSTRACT:
An integral power steering apparatus includes a stroke limiter. A piston defines two hydraulic chambers in a housing. A communicating passage, a first valve disposed between the first hydraulic chamber and the communicating passage, and a second valve disposed between the second hydraulic chamber and the communicating passage, are provided to serve for a stroke limiter, in addition to a hydraulic circuit for supplying hydraulic fluid to the two hydraulic chambers. The two valves each include a valve body having a bore and serving as a valve seat, a plunger slidably fitted within the bore of the valve body and serving as a valving element, and a spring disposed on the bottom of the bore of the valve body and biasing the plunger to be in contact with the valve body.

REFERENCES:
patent: 5660247 (1997-08-01), Lang
patent: 6230839 (2001-05-01), Elser et al.
patent: 6408975 (2002-06-01), Bishop et al.
patent: 6779625 (2004-08-01), Sonoda et al.
patent: 6782966 (2004-08-01), Sahr et al.
patent: 20030013442 (2003-01-01), Holmes et al.
patent: 20030141140 (2003-07-01), Wienecke
patent: 2518888 (1996-09-01), None

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