Oil pump

Details Oil pump Oil pump

1992-02-24

1993-10-05

Gluck, Richard E.

Rotary expansible chamber devices

Moving cylinder

Rotating

F04C 210

Patent

active

052499421

ABSTRACT:
An oil pump comprises a pump casing, a crankshaft, an inner rotor mounted on the crankshaft, an outer rotor, an intake chamber, and a discharge chamber. The inner rotor has outwardly projecting teeth which engage with inwardly projecting teeth of the outer rotor for rotating the outer rotor for transferring oil from the intake chamber to the discharge chamber. A stopper is provided which contacts edge portions of the teeth of the inner and outer rotors respectively to prevent oil in a space between the teeth from leaking.

REFERENCES:
patent: 3695791 (1972-10-01), Brundage
patent: 3791778 (1974-02-01), Eron
patent: 4897025 (1990-01-01), Negishi
patent: 5122039 (1992-06-01), Tuckey

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