Ejector-type refrigeration cycle device

A refrigeration cycle and ejector technology, applied in the field of ejector refrigeration cycle devices, can solve the problems of high COP, inability to supply refrigerant, and unavoidable COP reduction, and achieve the effect of improving COP
CN101952670AInactive Publication Date: 2011-01-19DENSO CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DENSO CORP
Publication Date
2011-01-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

In an ejector-type refrigeration cycle device provided with a first compression mechanism (11a) and a second compression mechanism (21a), a refrigerant outlet of a suction-side evaporator (16) is connected to a refrigerant suction port (13b) of an ejector (13), and the second compression mechanism (21a) is provided between the suction-side evaporator (16) and the refrigerant suction port (13b) ofthe ejector (13). Thus, even under an operation condition such that the suction capability of the ejector (13) reduces with a reduction in the flow rate of the driving flow of the ejector (13), the suction capability of the ejector (13) can be assisted by the second compression mechanism (21a). Consequently, even when the flow rate of the driving flow changes, the ejector-type refrigeration cycledevice can be stably operated.
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Description

[0001] Cross References to Related Applications

[0002] This application is based on Japanese Patent Application No.2008-108676 filed on April 18, 2008, Japanese Patent Application No.2008-259501 filed on October 6, 2008, Japanese Patent Application No. 2008-259502, Japanese Patent Application No. 2008-259503 filed on October 6, 2008, Japanese Patent Application No. 2008-259504 filed on October 6, 2008, Japanese Patent Application No. 2008 filed on December 9, 2008 . 2008-312958, and Japanese Patent Application No. 2008-312959 filed on December 9, 2008, the entire contents of which are hereby incorporated by reference. technical field

[0003] The present application relates to an ejector refrigeration cycle device having an ejector. Background technique

[0004] Generally, an ejector-type refrigeration cycle device is known to have an ejector that functions as a refrigerant decompression device and a refrigerant cycle device. For example, Patent Documents 1-3 describe ej...

Claims

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