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Title:
COMPRESSOR FOR REFRIGERATION AND AIR-CONDITIONING, AND REFRIGERATING AND AIR-CONDITIONING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/086518
Kind Code:
A1
Abstract:
The purpose of the present invention is to improve the abrasion resistance of a compressor for refrigeration and air-conditioning which utilizes difluoromethane (HFC32) as a cooling medium to thereby improve the long-term reliability of the compressor, and to improve the efficiency of a refrigerating and air-conditioning cycle of a refrigerating and air-conditioning apparatus by the use of the compressor. A compressor (100) is equipped with a cooling medium compression section having a sliding member, and has difluoromethane that acts as a cooling medium and a refrigerating machine oil both enclosed therein, wherein the refrigerating machine oil to be used has a kinematic viscosity of 30-100 mm2/s at 40˚C and a lower-temperature-side critical solution temperature between the cooling medium and the refrigerating machine oil is +10˚C or lower.

Inventors:
OTA RYO (JP)
ISEKI TAKASHI (JP)
ARAKI KUNINARI (JP)
Application Number:
PCT/JP2011/079058
Publication Date:
June 28, 2012
Filing Date:
December 15, 2011
Export Citation:
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Assignee:
HITACHI APPLIANCES INC (JP)
OTA RYO (JP)
ISEKI TAKASHI (JP)
ARAKI KUNINARI (JP)
International Classes:
F04B39/00; C09K5/04; C10M105/38; C10M105/42; C10M107/24; F04B39/02; F04C18/02; F25B1/00; C10N20/00; C10N20/02; C10N30/00; C10N40/30
Domestic Patent References:
WO2008105256A12008-09-04
Foreign References:
JP2002105471A2002-04-10
JP2001226690A2001-08-21
JP2002060770A2002-02-26
JP2002129179A2002-05-09
JPH11323369A1999-11-26
Attorney, Agent or Firm:
ISONO Michizo (JP)
Michizo Isono (JP)
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Claims:



 
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