Internal geared wheel pump without crescent-shaped [sickle] piec

Details Internal geared wheel pump without crescent-shaped [sickle] piec Internal geared wheel pump without crescent-shaped [sickle] piec

1999-02-01

2000-12-26

Denion, Thomas

Rotary expansible chamber devices

Moving cylinder

Rotating

418124, 418116, 418140, 74462, F04C 200

Patent

active

061649430

ABSTRACT:
An internal geared wheel pump that does not have a crescent shaped piece. The pump has an internal geared wheel that meshes with a pinion. The pinion and geared wheel are mounted in a rotatable manner in a housing that has a suction connection and a pressure connection. The geared wheel has passages that produce each time a conductive connection between the base of the tooth and the envelope surface of the geared wheel. Conductive connections are produced between the bearing flanks of the teeth of the geared wheel or the teeth of the pinion and the radial boreholes of the geared wheel.

REFERENCES:
patent: 1993721 (1935-03-01), Pigott
patent: 2669904 (1954-02-01), Bloomfield et al.
patent: 2845031 (1958-07-01), Guibert
patent: 2925044 (1960-02-01), Brundage
patent: 4813858 (1989-03-01), Otto et al.
patent: 5711660 (1998-01-01), Mitarai et al.
patent: 5845533 (1998-12-01), Basstein et al.
patent: 5890885 (1999-04-01), Eckerle

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