Capacity control of rotary vane apparatus

Details Capacity control of rotary vane apparatus Capacity control of rotary vane apparatus

1983-06-30

1985-05-14

Vrablik, John J.

Rotary expansible chamber devices

With changeable working chamber magnitude

By adjustably limiting vane or abutment movement

418 24, 418 27, F04C 1800, F04C 2910

Patent

active

045169195

ABSTRACT:
A capacity control arrangement for a rotary vane fluid displacement apparatus, such as a rotary vane compressor, having a vane retaining means that normally engages and retains the vanes in their retracted or nonworking position within the rotor defined guide slits of such rotary vane compressor. The retaining means are actuated to the vane-disengaged position by hydraulic control fluid which is communicated to the retaining means in response to an external parameter sensed by a control means.

REFERENCES:
patent: 1603437 (1926-10-01), Wingquist
patent: 2175413 (1939-10-01), Sharar
patent: 2696790 (1954-12-01), Crow
patent: 3137235 (1964-06-01), Brown
patent: 3153384 (1964-10-01), Castel et al.
patent: 3180271 (1965-04-01), Hartmann
patent: 3828569 (1974-08-01), Weisgerber
patent: 3904327 (1975-09-01), Edwards et al.
patent: 4050263 (1977-09-01), Adalbert et al.
patent: 4132512 (1979-01-01), Roberts

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