Refrigerator

Details Refrigerator Refrigerator

2006-04-04

2006-04-04

Tyler, Cheryl (Department: 3744)

Refrigeration

Refrigeration producer

Compressor-condenser-evaporator circuit

C062S114000, C062S077000

Reexamination Certificate

active

07021080

ABSTRACT:
A refrigerant circuit (10) is formed by connecting, in the order given, a compressor (11), a four-way selector valve (12), an outdoor heat exchanger (13), an expansion valve (14), and an indoor heat exchanger (15) by a gas side pipe (31) and a liquid side pipe (32). The refrigerant circuit (10) is charged with a single refrigerant of R32 or with an R32/R125 mixed refrigerant whose R32 content is not less than 75% by weight. As an insulating material of an electric motor of the compressor (11), a resin material is used, and as an refrigeration oil a synthetic oil is used. When cooling rated capacity is not more than 5 kW, the liquid side pipe (32) is formed by use of a pipe whose inside diameter is less than 4.75 mm.

REFERENCES:
patent: 4771824 (1988-09-01), Rojey et al.
patent: 6477848 (2002-11-01), Domyo et al.
patent: 8-135572 (1996-05-01), None
patent: 9-151370 (1997-06-01), None
patent: 9-208939 (1997-08-01), None
patent: 10-9139 (1998-01-01), None
patent: WO 98/41803 (1998-09-01), None
Shadan Hojin Nippon Reitou Kyokai ed., “Jyokyu Hyojun Text Reitou Kucho Gijutsu”, Jan. 20, 1988, p. 133, right column, line 8 to p. 143, right column, line 26.

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