Control valve for a servo-steering mechanism

Details Control valve for a servo-steering mechanism Control valve for a servo-steering mechanism

1979-07-16

1982-02-02

Michalsky, Gerald A.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91380, 91390, 91422, 91434, F15B 908, F15B 1314

Patent

active

043133657

ABSTRACT:
A control valve arrangement for a servo-steering mechanism which includes a valve control member responsive to arbitrary steering motions of a steering wheel by executing relative movement with respect to a valve housing. The control member is subdivided into two coupling elements movable relative to each other, which coupling elements are mutually resiliently supported. One of the coupling elements is, in a geared manner, connected to the steering wheel with the other coupling element being provided with four control edges cooperating with corresponding control edges of a valve housing. Two of the control edges control a throttling of two pressure medium connections of one working pressure chamber of the servo-steering mechanism with the other two control edges controlling a throttling of two pressure medium connections of a second working pressure chamber of the servo-steering mechanism.

REFERENCES:
patent: 3990350 (1976-11-01), Strauff
patent: 4218958 (1980-08-01), Katz et al.

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