REFRIGERATION CYCLE - DAIKIN IND LTD

Title:

REFRIGERATION CYCLE

Document Type and Number:

WIPO Patent Application WO/2019/124146

Kind Code:

A1

Abstract:

This refrigeration cycle uses a flammable mixed refrigerant including at least 1,2-difluoroethylene (HFO-1132(E)), and is provided with a compressor (1), a heat source-side heat exchanger (3), an expanding mechanism (4), a utilization-side heat exchanger (2), and a pressure reduction mechanism (7). The pressure reduction mechanism (7) reduces the pressure of the mixed refrigerant flowing through the heat source-side heat exchanger (3), which functions as an evaporator, between an inlet and an outlet of the heat source-side heat exchanger (3).

Inventors:

KUMAKURA EIJI
YAMADA TAKURO
YOSHIMI ATSUSHI
IWATA IKUHIRO
ITANO MITSUSHI
KARUBE DAISUKE
YOTSUMOTO YUUKI
TAKAHASHI KAZUHIRO
TAKAKUWA TATSUYA
KOMATSU YUZO
OHKUBO SHUN

Application Number:

PCT/JP2018/045336

Publication Date:

June 27, 2019

Filing Date:

December 10, 2018

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

C09K5/04; F24F1/0063; F24F1/0067; F24F13/30; F25B1/00; F25B5/04

Domestic Patent References:

WO2015141678A1	2015-09-24
WO2015186670A1	2015-12-10
WO2015186557A1	2015-12-10
WO2015115252A1	2015-08-06
WO2016017460A1	2016-02-04
WO2015141678A1	2015-09-24

Foreign References:

JPH07190571A	1995-07-28
JPH0719627A	1995-01-20
JP2010164222A	2010-07-29
JP2011043304A	2011-03-03
JPS57198968A	1982-12-06

Other References: