Trochoidal toothed oil pump with thin discharge channel communic

Details Trochoidal toothed oil pump with thin discharge channel communic Trochoidal toothed oil pump with thin discharge channel communic

1987-03-31

1988-08-30

Vrablik, John J.

Rotary expansible chamber devices

Moving cylinder

Rotating

418180, F04C 210

Patent

active

047672960

ABSTRACT:
A trochoidal oil pump including a housing defining an internal space; an outer rotor fitted rotatably in the internal space of the housing and having internal teeth; an inner rotor having outer teeth meshing with the internal teeth of the outer rotor to define a sealed space therebetween; and suction and discharge chambers formed in the housing and opened into the internal space of the same. The discharge member is formed to begin at an angle l formed in the direction of forward rotation from the dedendum to the beginning portion of the discharge chamber extending in the direction of forward rotation and defined by the following relationship:

REFERENCES:
patent: 2684637 (1954-07-01), Erikson
patent: 3072067 (1963-01-01), Beller
patent: 3635604 (1972-01-01), Petersen et al.

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