Refrigerant compressors

Details Refrigerant compressors Refrigerant compressors

1979-08-16

1981-08-18

Freeh, William L.

Expansible chamber devices

With fluid purifying means

Means separates gas from liquid

417269, F01B 3100, F04B 118, F04B 3904

Patent

active

042839971

ABSTRACT:
A refrigerant compressor unit which includes a balance hole communicating between the crank chamber and the suction chamber for returning blow-by gas in the crank chamber to the suction chamber. The unit is provided with an oil collecting zone within the discharge chamber and has an oil accumulating chamber formed on a lower portion of the cylinder head. Oil mixed with compressed refrigerant gas within the discharge chamber adheres the inner surface of the discharge chamber and flows into the collecting zone. The collected oil is accumulated in the accumulating chamber and returns to the crank chamber through an oil passageway between the accumulating chamber and the crank chamber, thereby reducing the oil leakage into the refrigerant circulating system.

REFERENCES:
patent: 3587406 (1971-06-01), Gannaway
patent: 3676024 (1972-07-01), Akaiki
patent: 4005948 (1977-01-01), Hiraga
patent: 4073603 (1978-02-01), Abendschein

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