Bi-directional internal/external gear pump with advanced porting

Details Bi-directional internal/external gear pump with advanced porting Bi-directional internal/external gear pump with advanced porting

1981-03-09

1983-12-13

Feinberg, Craig R.

Rotary expansible chamber devices

Self-acting unidirectional flow with reverse rotation or...

418 61B, 418171, F04C 204

Patent

active

044202920

ABSTRACT:
A bi-directional internal/external gear pump with advanced porting includes inlet and outlet ports symmetrical about a line perpendicular to the port centerline. An internal/external gear set is rotatable on parallel axes establishing the hydraulic centerline, which is advanced relative to the port centerline by some predetermined angle. One axis may be revolved about the other to shift the hydraulic centerline by substantially 180.degree. minus twice the angle of advance.

REFERENCES:
patent: 2373368 (1945-04-01), Witchger
patent: 3834842 (1974-09-01), Dorff et al.
patent: 3995978 (1976-12-01), Khan et al.
patent: 4008018 (1977-02-01), McDermott
patent: 4222719 (1980-09-01), Johnson

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