Rotary pump having a reinforced flexible annular diaphragm

Details Rotary pump having a reinforced flexible annular diaphragm Rotary pump having a reinforced flexible annular diaphragm

1997-07-15

1999-11-23

Vrablik, John J.

Rotary expansible chamber devices

Collapsible progressively deformed working chamber wall

418 56, 418 66, 418153, 418215, F04C 500, F04C 1100

Patent

active

059889985

ABSTRACT:
A rotary diaphragm fluid pump includes a rigid tubular body with internal annular groove, a tubular flexible diaphragm whose central portion is caused to orbit by an eccentrically driven bearing. Preferably the diaphragm is a moulding which features an elastic fixed abutment between the inlet and outlet ports, and internal reinforcement to ensure that the full diaphragm stroke is achieved. Two such pumps may compliment each other to produce a pulsation free output.

REFERENCES:
patent: 2428619 (1947-10-01), Douglas
patent: 2578798 (1951-12-01), Gordinier
patent: 2583572 (1952-01-01), Huber
patent: 5006049 (1991-04-01), von der Heyde

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