Refrigeration – With indicator or tester – Condition sensing
Patent
1998-05-27
1999-12-07
Tanner, Harry B.
Refrigeration
With indicator or tester
Condition sensing
62114, 62502, F25B 100
Patent
active
059963581
ABSTRACT:
In the detection of circulating compositions in the cycle of a non-azeotropic refrigerant composed of three or more kinds of refrigerants, there have been drawbacks in that the number of sensors required is large, and large errors are contained in the circulating composition which can be detected. To overcome these drawbacks, the refrigerating and air-conditioning apparatus comprises at least a compressor, a condenser, a pressure reducing device, and an evaporator, and in a refrigerant cycle which uses as a working refrigerant a non-azeotropic refrigerant composed of N kinds (N.gtoreq.3) of refrigerants and is provided with composition detecting means for detecting the circulating compositions of the non-azeotropic refrigerant, circulating compositions are determined by using (N-2) relations on compositions among a first component to a j-th (2.ltoreq.j.ltoreq.N-1) component of the non-azeotropic refrigerant.
REFERENCES:
patent: 5353604 (1994-10-01), Oguni et al.
patent: 5626026 (1997-05-01), Sumida et al.
patent: 5651263 (1997-07-01), Nonaka et al.
patent: 5737931 (1998-04-01), Ueno et al.
Kasai Tomohiko
Morimoto Osamu
Okazaki Takashi
Sumida Yoshihiro
Ueno Yoshio
Mitsubishi Denki & Kabushiki Kaisha
Tanner Harry B.
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