Refrigerating device

Refrigeration – Automatic control – Refrigeration producer

Reexamination Certificate

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Details

C062S200000, C062S228500, C062S510000

Reexamination Certificate

active

06938430

ABSTRACT:
A refrigerating apparatus including three compressors (2A,2B,2C) and application side heat exchangers (41) (45, 51) for two channels is formed so that a first compressor (2A) is used only for the application side heat exchangers (45, 51) in a first channel of a circuit, a third compressor (2C) is used only for the application side heat exchanger (41) in a second channel of the circuit, and a second compressor (2B) is used in a switchable manner between the application side heat exchangers (45, 51) in the first channel of the circuit and the application side heat exchanger (41) in the second channel of the circuit. Thus, not only the pipe arrangement at suction side is simplified, but also operation control is streamlined.

REFERENCES:
patent: 2245053 (1941-06-01), Sanders, Jr.
patent: 4628700 (1986-12-01), Alsenz
patent: 4637220 (1987-01-01), Sakano
patent: 5065591 (1991-11-01), Shaw
patent: 6131401 (2000-10-01), Ueno et al.
patent: 6698217 (2004-03-01), Tanimoto et al.
patent: 0 744 581 (1996-11-01), None
patent: 61-134544 (1986-06-01), None
patent: 62-21888 (1987-06-01), None
patent: 1-42844 (1989-09-01), None
patent: 3-177757 (1991-08-01), None
patent: 7-139827 (1995-06-01), None
patent: 2001-280729 (2001-10-01), None

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