Hydraulic pump apparatus

Details Hydraulic pump apparatus Hydraulic pump apparatus

1997-08-29

1999-03-30

Hepperle, Stephen M.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

13711509, 251151, F16K 2704

Patent

active

058876120

ABSTRACT:
A hydraulic apparatus as used for providing fluid to a steering gear of an automotive vehicle includes a housing (10) having a valve bore (14) housing a relief valve spool (94) disposed therein and slidable between a first and second position. A discharge connector (88) is disposed on a first end of the valve bore (14) and forms a fluid passage for communicating fluid through the first end of the valve bore to a power steering actuator. An annular retainer (90) is disposed in the valve bore between the first position of the spool valve (94) and the discharge connector (88). The annular retainer includes an outer periphery (130) sized for interference fit engagement with said valve bore (14) for retaining the spool valve (94) within the valve bore (14) when the discharge connector (88) is removed from the first end of the valve bore.

REFERENCES:
patent: 3667725 (1972-06-01), Scaramucci
patent: 4549566 (1985-10-01), Fujiwara et al.
patent: 5161959 (1992-11-01), Gettel
patent: 5253842 (1993-10-01), Huebscher et al.
patent: 5339856 (1994-08-01), Templar
patent: 5467611 (1995-11-01), Cummings et al.

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