Membranes and neighboring members in pumps, compressors and devi

Details Membranes and neighboring members in pumps, compressors and devi Membranes and neighboring members in pumps, compressors and devi

1992-01-15

1994-03-08

Bertsch, Richard A.

Pumps

Motor driven

Fluid motor

417395, F04B 4302

Patent

active

052922359

ABSTRACT:
In a membrane pump for very high pressure, an axially moveable control member is provided in a body which borders a fluid handling chamber to form a narrow annular clearance around the control member and to form at the axial movement of the control member a cross-sectional area for big flow-through fluid quantities and temporarily a very narrow clearance for the prevention of deflection of portions of the membrane over the flow-through fluid passage.

REFERENCES:
patent: 2546302 (1951-03-01), Gehres et al.
patent: 2861518 (1958-11-01), Pleuger
patent: 2963976 (1960-12-01), Schaurte
patent: 3664770 (1972-05-01), Palmer
patent: 4022381 (1977-05-01), Karliner
patent: 4188170 (1980-02-01), Ito
patent: 4375346 (1983-03-01), Kraus et al.
patent: 4621989 (1986-11-01), Burgert
patent: 4822255 (1989-04-01), Eickmann

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