Air conditioner or refrigerating plant incorporating scroll comp

Details Air conditioner or refrigerating plant incorporating scroll comp Air conditioner or refrigerating plant incorporating scroll comp

1987-11-23

1988-10-04

King, Lloyd L.

Refrigeration

Reversible, i.e., heat pump

418 15, 418 55, F25B 1300

Patent

active

047748168

ABSTRACT:
An air conditioner includes a scroll-type refrigerant compressor driven at a speed variable in accordance with the thermal load on the air conditioner. The compressor has stationary and orbiting scroll members assembled together to define compression chambers in which a refrigerant gas is compressed and finally discharged into a discharger chamber through a discharge port formed in the center of the end plate of the stationary scroll member. At least one bypass port and an associated check valve are provided in and on the end plate of the stationary scroll member at such a position that the check valve opens to allow the gas to be directly discharged from an associated compression chamber into the discharge chamber when the compressor is operated under such a condition that the ratio of the operation pressure ratio to the design pressure ratio of the compressor falls within a range between 0.5 and 0.75.

REFERENCES:
patent: 4389171 (1983-06-01), Eber et al.
patent: 4676075 (1987-06-01), Shiibayashi
patent: 4730997 (1988-03-01), Tamura et al.

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