Spring arrangement for the control valve of a hydrostatic steeri

Details Spring arrangement for the control valve of a hydrostatic steeri Spring arrangement for the control valve of a hydrostatic steeri

1979-04-02

1981-02-17

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

180132, 267164, F03C 200, F16F 118, B62D 508

Patent

active

042511941

ABSTRACT:
The invention relates to an improvement in the spring arrangement of the control valve assembly of a hydrostatic steering unit of the type having a measuring motor and relatively rotatable inner and outer concentric tubular valve members. In this type of unit one of the valve members is connected to the motor and the other valve member is manually rotated for steering purposes. The valve members have axially aligned and diametrically arranged slots for housing the spring arrangement which includes a pair of curved leaf springs and two supporting plates which may also be leaf springs.

REFERENCES:
patent: 3385057 (1968-05-01), Pruvot et al.
patent: 3528521 (1970-09-01), Ellis
patent: 3819307 (1974-06-01), Uppal
patent: 4174612 (1979-11-01), Liebert

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