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US 7,254,961 B2Granted
Vapor compression cycle having ejector
AssigneeDenso Corporation
InventorsHiroshi Oshitani, Yasushi Yamanaka, Hirotsugu Takeuchi, Katsuya Kusano, Makoto Ikegami, Yoshiaki Takano, Naohisa Ishizaka, Takayuki Sugiura
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Abstract
A first evaporator is arranged on a downstream side of an ejector, and a second evaporator is connected to a refrigerant suction inlet of the ejector. A refrigerant evaporation temperature of the second evaporator is lower than that of the first evaporator. The first and second evaporators are used to cool a common subject cooling space and are arranged one after the other in a flow direction of air to be cooled.
Claims12
A vapor compression cycle comprising:
- a compressor that draws and compresses refrigerant;
- a radiator that radiates heat from the compressed high pressure refrigerant discharged from the compressor;
- an ejector that includes:
- a nozzle portion, which depressurizes and expands the refrigerant on a downstream side of the radiator;
- a refrigerant suction inlet, from which refrigerant is drawn by action of a flow of the high velocity refrigerant discharged from the nozzle portion;
- a mixing portion, through which the high velocity refrigerant discharged from the nozzle portion and the drawn refrigerant supplied from the suction inlet are mixed;
- and
- a pressurizing portion that converts a velocity energy of a flow of mixed refrigerant, which is mixed through the mixing portion, into a pressure energy;
- a first evaporator that is connected to a downstream side of the ejector;
- and
- a second evaporator that is connected to the suction inlet of the ejector, wherein the first evaporator and the second evaporator are constructed integrally to cool an air flow that is directed to a common subject cooling space.
8 more elements
Dependencies are inferred from the claim text.