Refrigerating apparatus

Details Refrigerating apparatus Refrigerating apparatus

1988-08-26

1989-08-08

Tapolcai, William E.

Refrigeration

Means producing shaped or modified congealed product

Thawing means

62278, 62513, F25C 510

Patent

active

048541303

ABSTRACT:
A refrigerating apparatus comprises a compressor, a condenser, an expansion valve and a evaporator which are interconnected serially through a pipeline to form a closed circulation circuit. A check valve allowing a coolant flow only toward the condenser is provided between the discharge port of the compressor and the condenser. A hot gas bypass circuit is connected at one end to a junction between the compressor and the check valve and at the other end to a junction between the expansion valve and the evaporator. The check valve serves to prevent backflow of coolant to the hot gas bypass circuit during the hot gas operation mode without hindering the flow of the coolant gas through the closed circulation circuit during the normal refrigerating operation.

REFERENCES:
patent: 2385667 (1945-09-01), Webber
patent: 2770104 (1956-11-01), Sweynor
patent: 2961848 (1960-11-01), Nonomague
patent: 3020726 (1962-02-01), MacLeod
patent: 3201950 (1965-08-01), Shrader
patent: 3214929 (1965-11-01), Anderson
patent: 3599440 (1971-08-01), Melion
patent: 3636723 (1972-01-01), Kramer
patent: 4238932 (1980-12-01), Schrader

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