Rotary slide for a hydrostatic steering unit

Details Rotary slide for a hydrostatic steering unit Rotary slide for a hydrostatic steering unit

1985-05-20

1986-04-15

Schwadron, Martin P.

Fluid handling

Systems

Multi-way valve unit

91375A, 91467, F16K 1112, F15K 910

Patent

active

045820872

ABSTRACT:
The invention relates to a rotary slide valve subassembly for a hydrostatic steering unit. The slide valve subassembly includes two concentric sleeves having near one end a plurality of circumferentially distributed axially extending slots which, in the neutral position, create a short circuit between the supply and discharge sides. The slots subdivide the corresponding sleeve sections into stays extending from the main sleeve sections. A construction is provided to avoid jamming of the sleeves by joining the stays of each sleeve section with a closed ring member and undercutting the inside diameter of the stays of the inner sleeve section to cause weakening thereof relative to the stays of the outer sleeve section.

REFERENCES:
patent: Re25126 (1962-02-01), Charlson
patent: 4471808 (1984-09-01), Thomsen et al.
patent: 4471809 (1984-09-01), Thomsen et al.

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