Refrigeration – Reversible – i.e. – heat pump – With flow control or compressor details
Patent
1982-03-19
1983-09-27
King, Lloyd L.
Refrigeration
Reversible, i.e., heat pump
With flow control or compressor details
13762543, F16K 31122
Patent
active
044063067
ABSTRACT:
A switchover valve (20) is employed within a heat pump system (10) including a heat exchanger coil (14) within a structure (18) to be heated and cooled, and a second heat exchanger coil (16) external of the structure and in fluid communication with the first coil. The system also includes a compressor (12) which circulates a refrigerant between the coils to effect a net heat transfer into or out of the structure. The switchover valve operates to selectively reverse the flow of refrigerant between the coils, depending upon the operating mode of the system. The valve comprises a body (64) defining inlet and suction ports (22 & 28) for interconnection with the compressor and two reversing valve ports (36 & 40) for interconnection with the coils, a solenoid (196) operated pilot valve (153) and a slave valve (121) for selectively interconnecting the inlet port with one of the reversing valve ports, and a shuttle poppet valve (235) for interconnecting the suction port with the remaining reversing valve port.
REFERENCES:
patent: 2974682 (1961-03-01), Trask
patent: 2976701 (1961-03-01), Greenawalt
patent: 3032312 (1962-05-01), Greenawalt
patent: 3056574 (1962-10-01), Greenawalt
patent: 3349800 (1967-10-01), Herioe et al.
patent: 3357453 (1967-12-01), Mingrone et al.
patent: 3527256 (1970-09-01), Colombo
patent: 3867960 (1975-02-01), Hosoda et al.
patent: 3894561 (1975-07-01), Thornbery
patent: 3985154 (1976-10-01), Hargraves
patent: 4144905 (1979-03-01), Bauer
patent: 4212324 (1980-07-01), Bauer
Product Specification No. 13.62T-40IR Series Reversing Valve for Heat Pumps 1/2" and 1" Port Sizes; Alco Controls Div.-Emerson Electric; pp. 1-4.
Eaton Corporation
Grace C. H.
Johnston R. A.
King Lloyd L.
Lewis J. G.
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