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US 2006/0064997 A1Published application
Cooling systems
OwnerMichal Graboninventor
Life of this patent
Estimating the term…
Abstract
An apparatus has a compressor having suction and discharge ports. One or more conduits form a main flowpath from the discharge port through a condenser, a heat exchanger first leg, a first expansion device, and an evaporator to return to the suction port. The conduits also form a bypass flowpath bypassing the heat exchanger first leg, the first expansion device, and the evaporator but passing through a second leg of the heat exchanger in heat exchange relation with the first leg.
Claims20
An apparatus comprising:
- a compressor having suction and discharge ports;
- a condenser;
- a first expansion device;
- a second expansion device;
- an evaporator;
- a heat exchanger having first and second portions in heat exchange relation with each other;
- and
- one or more conduits forming:
- a main flowpath from the discharge port through the condenser, the heat exchanger first portion, the first expansion device, and the evaporator and returning to the suction port;
- and
- a bypass flowpath bypassing the heat exchanger first portion, the first expansion device, and the evaporator, but passing through the second expansion device and the heat exchanger second portion.
8 more elements
A method for operating a cooling system comprising:
- causing a main flow of refrigerant through an evaporator;
- and
- precooling the main flow upstream of the evaporator so as to so as to maintain said main flow essentially as a liquid entering the evaporator.
A system comprising:
- a compressor;
- a condenser;
- a discharge line, coupling the compressor to the condenser to carry at least a main flow of refrigerant from the compressor to the condenser;
- an expansion device;
- an evaporator;
- a suction line, coupling the evaporator to the compressor to carry refrigerant from the condenser to the compressor and comprising a first and second parallel segments;
- and
- means for precooling refrigerant entering the expansion device so as to maintain said main flow essentially as a liquid while flowing along a flowpath length at least from the expansion device to the evaporator.
5 more elements
Dependencies are inferred from the claim text.