Gerotor pump having spiral lobes

Details Gerotor pump having spiral lobes Gerotor pump having spiral lobes

1992-08-04

1993-03-23

Vrablik, John J.

Rotary expansible chamber devices

Moving cylinder

Rotating

4182011, F04C 2107

Patent

active

051958821

ABSTRACT:
A gerotor pump has a rotatable, lobed rotor with n lobes meshed with a rotable lobed annulus with n+1 lobes, the two being conjointly and relatively rotatable about parallel axes. The lobes of both the rotor and the annulus spiral helically to smooth pressure peaks and reduce noise.

REFERENCES:
patent: 1768818 (1930-07-01), Bock
patent: 1780338 (1930-11-01), Canton
patent: 2211154 (1940-08-01), Oshei
patent: 2349022 (1944-05-01), Ungar et al.
patent: 2462924 (1949-03-01), Ungar
patent: 2830542 (1958-04-01), Erickson et al.
patent: 3822972 (1974-07-01), Ogly et al.
patent: 4424013 (1984-01-01), Bauman
patent: 4711006 (1987-12-01), Baldenko et al.
patent: 4863357 (1989-09-01), Olofsson
patent: 5056995 (1991-10-01), Tamura et al.

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