Refrigeration cycle

Details Refrigeration cycle Refrigeration cycle

1991-01-11

1991-12-10

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

621964, 62509, F25B 3904

Patent

active

050707051

ABSTRACT:
A refrigeration system is described in two preferred embodiments. In both embodiments, the refrigeration cycle includes a conventional compressor, condenser, expansion valve and evaporator. The receiver is not in the loop normally. In one embodiment, a pressure differential valve diverts subcooled refrigerant to the receiver only in response to a predetermined difference in pressure between the saturation pressure caused by the ambient surrounding the condenser, plus spring pressure and the pressure within the line leaving the condenser. Refrigerant thus diverted is metered back into the suction side of the system. In a second embodiment, compressed gas exiting the compressor is diverted to the receiver responsive to a pressure differential between saturation pressure caused by condenser ambient plus spring pressure and the pressure within the receiver. The refrigerant thus diverted raises the pressure within the receiver which in turn drives liquid refrigerant back into the liquid line.

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