REFRIGERATION CYCLE DEVICE - MITSUBISHI ELECTRIC CORP

Title:

REFRIGERATION CYCLE DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/144764

Kind Code:

A1

Abstract:

A refrigeration cycle device (1) according to the present invention comprises a refrigerant circuit (2) and refrigerants. The refrigerant circuit (2) has a compressor (4), a condenser (5), an expansion valve (6), an evaporator (7), and an internal heat exchanger (8). The refrigerants are hydrocarbon refrigerants. The internal heat exchanger (8) has an inner pipe (8a) and an outer pipe (8b). The internal heat exchanger (8) is configured so as to perform heat exchange between the refrigerants flowing in the inner pipe (8a) from the condenser (5) to the expansion valve (6) and the refrigerants flowing outside of the inner pipe (8a) in the outer pipe (8b) from the evaporator (7) to the condenser (4). All of the refrigerants flowing outside of the inner pipe (8a) in the outer pipe (8b) are gas.

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Inventors:

MURATA KENTA (JP)
ITO DAISUKE (JP)
NISHIYAMA TAKUMI (JP)
SATO TSUYOSHI (JP)

Application Number:

PCT/JP2019/000356

Publication Date:

July 16, 2020

Filing Date:

January 09, 2019

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F25B1/00; F28D7/10

Foreign References:

JP2008164245A	2008-07-17
JP2014178110A	2014-09-25
JP2004012127A	2004-01-15
JP2000179959A	2000-06-30
KR200420568Y1	2006-07-04
JP2010127498A	2010-06-10
JP2003314927A	2003-11-06
JP2008164245A	2008-07-17

Other References: