Refrigeration – Reversible – i.e. – heat pump – With flow control or compressor details
Patent
1997-11-12
1999-08-10
Tapolcai, William E.
Refrigeration
Reversible, i.e., heat pump
With flow control or compressor details
F25B 4104
Patent
active
059340975
ABSTRACT:
A refrigerant fluid circuit for a motor vehicle air conditioning installation has three branches, with two three-way valves for selectively passing fluid from the first branch into either the second branch to establish a cooling loop, or into the third branch to establish a heating loop. The three-way valves and a second expansion device in the third branch of the circuit, are incorporated in a modular component which comprises a monobloc body; the monobloc body having three body ports for connection in the three branches of the circuit, and further body ports which are arranged to be connected to the inlet and outlet, respectively of the compressor of the circuit.
REFERENCES:
patent: 3928984 (1975-12-01), Nickell
patent: 4055056 (1977-10-01), Perkins
patent: 4313314 (1982-02-01), Boyankch
patent: 4760709 (1988-08-01), Aoki et al.
patent: 5131240 (1992-07-01), Kohashi et al.
patent: 5709247 (1998-01-01), Hutton
patent: 5755111 (1998-05-01), Toyama
Patent Abstracts of Japan vol. 016 No. 057 (M-1210), Feb. 13, 1992 and JP 03 255864 A (Mitsubishi Electric), Nov. 14, 1991.
French Search Report dated Jul. 25, 1997.
Tapolcai William E.
Valeo Climatisation
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