Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/124380
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide, when a refrigerant containing at least 1,2-difluoroethylene is used, a refrigeration cycle device in which the pressure loss thereof can be reduced and the amount of the refrigerant contained therein can be minimized. An air-conditioning device (1) comprises: a refrigerant circuit (10) having a compression machine (21), an outdoor heat exchanger (23), an outdoor expansion valve (24), and an indoor heat exchanger (31); and a refrigerant that contains at least 1,2-difluoroethylene and that is hermetically sealed in the refrigerant circuit (10), wherein the outdoor heat exchanger (23) has a heat transfer pipe (23b) having a pipe diameter of not less than 6.35 mm but less than 10.0 mm.

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:
JP2018/046582
Publication Date:
June 27, 2019
Filing Date:
December 18, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Building, 4-12 Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
International Classes:
C09K5/04; F25B1/00
Domestic Patent References:
WO2014203353A12014-12-24
WO2015141678A12015-09-24
WO2015186670A12015-12-10
WO2015186557A12015-12-10
WO2015115252A12015-08-06
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (South Forest Bldg, 1-4-19 Minamimori-machi, Kita-ku, Osaka-sh, Osaka 54, 〒5300054, JP)
Download PDF: