Refrigeration – Reversible – i.e. – heat pump – With flow control or compressor details
Patent
1996-09-04
1998-05-26
Tapolcai, William E.
Refrigeration
Reversible, i.e., heat pump
With flow control or compressor details
13762543, 2511292, F25B 3002
Patent
active
057551111
ABSTRACT:
A high-low pressure passage switching device in a heating-cooling apparatus comprises a hollow tube; a high pressure gas inlet port formed in a wall of the hollow tube and connected to a high pressure gas outlet port of a compressor; a first high pressure gas outlet port/low pressure gas inlet port formed in the wall of the hollow tube and connected to one end of a heat exchanger; a second high pressure gas output port/low pressure gas inlet port formed in the wall of the hollow tube and connected to the other end of the heat exchanger; and a flow passage switch disposed within the hollow tube and capable of rotating about a fixed axis. The flow passage switch is adapted to supply a high pressure gas introduced from the high pressure gas inlet port selectively to one of the first high pressure gas outlet port/low pressure gas inlet port and the second high pressure gas outlet port/low pressure gas inlet port to thereby switch the high pressure gas flow passage. When a high pressure gas is supplied to one end of the heat exchanger through a selected one of the first high pressure gas outlet port/low pressure gas inlet port and the second high pressure gas outlet port/low pressure gas inlet port, a low pressure gas from the other end of the heat exchanger is introduced into the hollow tube through the other port so that the interior of the hollow tube is normally filled with low pressure gas. A low pressure gas outlet port is formed in the wall of the hollow tube and connected to a low pressure gas inlet port of the compressor so that the low pressure gas within the hollow tube is guided to the low pressure gas inlet port.
REFERENCES:
patent: 3047020 (1962-07-01), Barrett, Jr.
patent: 4526202 (1985-07-01), Chorkey
patent: 5188151 (1993-02-01), Young et al.
Fuji Injector Corporation
Tapolcai William E.
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