Vane type pump device

Details Vane type pump device Vane type pump device

1984-05-31

1985-12-17

Smith, Leonard E.

Rotary expansible chamber devices

Moving cylinder

Rotating

F04C 18348

Patent

active

045589992

ABSTRACT:
A vane type pump device comprising a frame, a shaft rotatably supported by the frame, a rotor secured to the shaft, a plurality of vanes slidably inserted in the rotor in the radial direction, a housing having a cylindrical inner surface whose center is deflected from the axial center of the shaft and an intake port and a discharging port formed in the housing wherein a casing having a cylindrical inner surface with which the vanes are slidably in contact, is rotatably placed between the cylindrical inner surface of the housing and the rotor with the center being coaxial with that of the housing, and the intake port is communicated with the discharging port through an air passage formed between the housing and the casing and a working chamber formed between the casing and the rotor.

REFERENCES:
patent: 1590384 (1926-06-01), Kucher
patent: 1834509 (1931-12-01), Trumble
patent: 2157120 (1939-05-01), Curtis
patent: 2241824 (1941-05-01), Meyerhoefer
patent: 4479763 (1984-10-01), Sakamaki et al.

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