Denso Corporation

Takeyuki Sugiura

Hirotsugu Takeuchi

Etsuhisa Yamada

Hiroshi Oshitani

Makoto Ikegami

Naohisa Ishizaka

Takuo Maehara

An ejector cycle system with a refrigerant cycle through which refrigerant flows includes an ejector disposed downstream of a radiator, a first evaporator that evaporates refrigerant flowing out of the ejector, a throttling unit located in a branch passage and depressurizes refrigerant to adjust a flow rate of refrigerant, and a second evaporator located downstream of the throttling unit. In the ejector cycle system, a flow ratio adjusting means adjusts a flow ratio between a first refrigerant flow amount depressurized and expanded in a nozzle portion of the ejector and a second refrigerant flow amount drawn into a refrigerant suction port of the ejector, based on a physical quantity related to at least one of a state of refrigerant in the refrigerant cycle, a temperature of a space to be cooled by the first and second evaporators, and an ambient temperature of the space.

Ejector cycle system

An ejector cycle system with a refrigerant cycle through which refrigerant flows includes an ejector disposed downstream of a radiator, a first evaporator located to evaporate refrigerant flowing out of the ejector, a branch passage branched from a branch portion between the radiator and a nozzle portion of the ejector and coupled to a refrigerant suction port of the ejector, a throttling unit located in the branch passage, and a second evaporator located downstream of the throttling unit to evaporate refrigerant. In the ejector cycle system, a variable throttling device is located in a refrigerant passage between a refrigerant outlet of the radiator and the branch portion to decompress the refrigerant flowing out of the radiator.

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Anjo, Japan

Takeyuki Sugiura