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US 4,068,494 AGranted
Power saving capacity control for air cooled condensers
OwnerDaniel E. Kramerinventor
Life of this patent
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Abstract
A refrigerant flooding type capacity control for air cooled condensers used in compression type mechanical refrigeration systems where the liquid receiver is located in a bypass around the condenser so that the controlled heating, which is applied to the liquid refrigerant in the receiver to create the flooding effect, does not cause a warming of the cold liquid refrigerant leaving the condenser.
Claims12
An improved compression type refrigeration system including a compressor having a discharge conduit;
- air cooled condenser means for receiving refrigerant from the discharge conduit and condensing it, said condenser means having an inlet and an outlet, said condenser means adapted to be exposed to varying ambients;
- an expansion device and an evaporator;
- a bypass conduit having a first end connected to the compressor discharge conduit, a condenser circuit comprising an inlet conduit joining one end of the bypass conduit with the condenser inlet, the condenser means, and an outlet conduit joining the other end of the bypass conduit with the condenser outlet;
- receiver means connected into the bypass conduit between the first end and the other end;
- single pressure regulator valve means adapted to cause flow through the bypass conduit and receiver when the high side pressure is lower than a predetermined minimum and to prevent said flow when the high side pressure is higher than said minimum.
2 more elements
Dependencies are inferred from the claim text.