Refrigeration system incorporating scroll type compressor

Details Refrigeration system incorporating scroll type compressor Refrigeration system incorporating scroll type compressor

1983-01-18

1984-10-09

King, Lloyd L.

Refrigeration

Reversible, i.e., heat pump

62503, F25B 1300

Patent

active

044753608

ABSTRACT:
A refrigeration system including a scroll type compressor having a stationary scroll member, an orbiting scroll member, a discharge port formed in the central portion of the end plate of the fixed scroll member, a suction port formed in a peripheral portion of the fixed scroll member, and at least one gas injection port formed through the thickness of an end plate of the fixed scroll member in a portion of the end plate near the spiral wrap, at a position spaced from the wall of the spiral wrap by a radial distance less than the thickness of the spiral wrap. A discharge pipe is connected to the discharge port, with a suction pipe being connected to the suction port. A refrigerant circuit is connected between the suction pipe and the discharge pipe of the scroll type compressor and includes a four-way valve, indoor heat exchanger, first pressure reducer, gas-liquid separator, second pressure reducer and an outdoor heat exchanger. A gas injection passage is connected between the gas outlet formed in an upper part of the gas-liquid separator and the gas injection port, so as to permit the refrigerant gas in the upper part of the gas-liquid separator to be additionally supplied into the compression chambers under compression in the scroll type compressor.

REFERENCES:
patent: 3884599 (1975-05-01), Young et al.
patent: 4030315 (1977-06-01), Harnish
patent: 4187695 (1980-02-01), Schumacher
patent: 4215555 (1980-08-01), Cann et al.
patent: 4382370 (1983-05-01), Suefuji et al.

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