Axial thrust compensating means for power steering control valve

Details Axial thrust compensating means for power steering control valve Axial thrust compensating means for power steering control valve

1982-09-02

1984-03-27

Garrett, Robert E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91375R, 91380, 91465, 91467, F15B 902

Patent

active

044386796

ABSTRACT:
An auxiliary fluid power steering device having a servomotor (8) and a control valve (13) in a common steering gear housing (1). In order to relieve the control valve of axial pressure forces, the valve body (14) of the control valve has four surfaces (24, 25, 26, 27) of equal area respectively exposed exclusively to fluid in the inlet port (22), in the outlet port (23), in one of the servomotor pressure chambers (9) adjacent the control valve and in the other pressure chamber (10) of the servomotor.

REFERENCES:
patent: 3022772 (1962-02-01), Zeigler et al.
patent: 3772962 (1973-11-01), Suzuki
patent: 3855904 (1974-12-01), Jablonsky

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