Piston for use in a fluid pump low pressure accumulator assembly

Details Piston for use in a fluid pump low pressure accumulator assembly Piston for use in a fluid pump low pressure accumulator assembly

1993-08-16

1994-10-11

Gluck, Richard E.

Pumps

Expansible chamber type

Having pulsation dampening fluid receiving space

138 31, F16L 5504

Patent

active

053541871

ABSTRACT:
A low pressure accumulator assembly for use with a fluid pump comprises a pump housing with a longitudinally extending chamber having a base with a fluid flow opening. An accumulator is secured in the pump housing chamber. The accumulator includes an accumulator housing with a longitudinally extending bore. A piston is biased outwardly of the bore to selectively engage the base of the pump housing chamber. A protrusion extends outwardly from the piston to limit an area of engagement between the piston and the base so that fluid flowing from said opening into the chamber may engage a greater area of the piston.

REFERENCES:
patent: 718145 (1905-02-01), Sinclair
patent: 1418616 (1922-06-01), Boisset
patent: 2419977 (1947-05-01), Wellbrock
patent: 2457834 (1949-01-01), Ricketson
patent: 3142318 (1964-07-01), Mercier
patent: 4000758 (1977-01-01), Meisenheimer
patent: 4903734 (1990-02-01), Merklein et al.
patent: 4953591 (1990-09-01), Takagi et al.
patent: 5104294 (1992-04-01), Banba

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