Refrigeration – Automatic control – Selective heating or cooling
Patent
1978-07-11
1980-04-08
Wayner, William E.
Refrigeration
Automatic control
Selective heating or cooling
62324, 62503, 237 2B, F25B 1300, F25B 2702
Patent
active
041965957
ABSTRACT:
A compression module may comprise a hermetic helical screw rotary compressor having injection and ejection ports in addition to discharge and suction ports or may comprise a multiple cylinder, multiple level, reciprocating compressor. The module incorporates a subcooler coil and is connected to an outside air coil, a thermal energy storage coil, a direct solar energy supply coil, one or more inside coils for the space to be conditioned and a hot water coil through common, discharge manifold, suction manifold, liquid drain manifold and liquid feed manifold, by suitable solenoid operated control valves and check valves. The solenoid operated control valves are selectively operated in response to system operating parameters. Seal pots and positive displacement pumps may operate to force liquid refrigerant condensed at intermediate pressure to flow to the receiver which is pressurized at a pressure corresponding to the condensation temperature of the highest pressure condensing coil in the system. Alternatively, liquid refrigerant expansion may be used to reach a common receiver pressure for all condenser returns.
REFERENCES:
patent: 3432089 (1969-03-01), Schibbye
patent: 3664150 (1972-05-01), Patterson
patent: 3936239 (1976-02-01), Shaw
patent: 4030315 (1977-06-01), Harnish
Dunham-Bush, Inc.
Wayner William E.
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