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Title:
REFRIGERATION CYCLE APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/159638
Kind Code:
A1
Abstract:
A refrigeration cycle apparatus (10) is provided with a compression device (12), a radiator (14), an ejector (16), a gas-liquid separator (18), a first pressure reduction device (12), and an evaporator (22). The refrigeration cycle apparatus is provided with a first intermediate pressure passage (26) for guiding gas-rich refrigerant present in the gas-liquid separator to a refrigerant intake side of a high-stage-side compression part of the compression device, and a second intermediate pressure passage (30) for guiding liquid-rich refrigerant present in the gas-liquid separator to the first pressure reduction device. The refrigeration cycle apparatus is provided with a high-pressure passage (24) for guiding refrigerant passed through the radiator to a refrigerant inlet side of a nozzle part of the ejector, and a suction passage (34) for guiding a portion of the refrigerant flowing through the high-pressure passage to a refrigerant suction port of the ejector. The refrigeration cycle apparatus is provided with a second pressure reduction device (38) for reducing the pressure of the refrigerant flowing through the suction passage, and an internal heat exchanger (36) for exchanging heat between the refrigerant on a downstream side of the second pressure reduction device in the suction passage and the refrigerant flowing through the second intermediate pressure passage.

Inventors:
TAKATSU MASAHIRO (JP)
Application Number:
JP2019/002299
Publication Date:
August 22, 2019
Filing Date:
January 24, 2019
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
F25B1/00; F25B1/10
Domestic Patent References:
WO2014103436A12014-07-03
Foreign References:
JP2012220166A2012-11-12
JP2001153473A2001-06-08
EP2754978A12014-07-16
KR20140141771A2014-12-11
JP2010133605A2010-06-17
JP2010271039A2010-12-02
US20170003040A12017-01-05
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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