Rotary vane compressor with suction port adjustment

Details Rotary vane compressor with suction port adjustment Rotary vane compressor with suction port adjustment

1982-01-29

1984-12-04

Vrablik, John J.

Rotary expansible chamber devices

Convertible or changeable by assembly or disassembly

418150, 418181, 418259, F04C 1800, F04C 2908

Patent

active

044861583

ABSTRACT:
A sliding vane type rotary compressor, of which refrigerating capacity at the high speed operation of the compressor is suppressed by making use of suction loss involved when refrigerant pressure in the vane chamber becomes lower than the pressure of the refrigerant supply source in the suction stroke of the compressor. The compressor has a rotor, vanes slidably carried by the rotor, a cylinder accommodating the rotor and the vane, side plates fixed to both sides of the cylinder for closing both open ends of the vane chambers defined by the rotor, vanes and the cylinder, and suction and discharge ports serving as passages for communicating the vane chambers with the outside of the compressor. A spacer for adjustment of the refrigerating capacity is disposed in the suction port. When the compressor of the invention is used in the refrigeration cycle of an automobile air conditioner, it is possible to obtain a desired refrigerating capacity controlling characteristics of the compressor matching the characteristics of the associated engine and automobile, simply by selecting a suitable spacer and mounting the same in the sucking section of the compressor, without substantially changing other parts of the compressor.

REFERENCES:
patent: 1023820 (1912-04-01), Dennison
patent: 2491100 (1949-12-01), Frei

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