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Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2015200431
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To acquire an air conditioner which uses a non-azeotropic refrigerant mixture and which can achieve high performance even when storing a liquid refrigerant in an accumulator.SOLUTION: In an air conditioner 100, a non-azeotropic refrigerant mixture and a refrigerating machine oil are sealed in a refrigeration cycle circuit. Then, in suction piping 21, which is refrigerant piping for connecting a suction port of a compressor 1 and an accumulator 2, an end part on the side connected to the accumulator 2 protrudes inside the accumulator 2. Furthermore, in the suction piping 21 of the air conditioner 100, an oil return hole 19 is formed at a position which is within a range arranged inside the accumulator 2 and which is higher than a central part of the accumulator. A control device 16 of the air conditioner 100 controls opening of a decompression device 4 so that the degree of dryness of the refrigerant flowing in the accumulator 2 becomes less than 1.

Inventors:
YAMAMOTO KAZUHIDE
Application Number:
JP2014077950A
Publication Date:
November 12, 2015
Filing Date:
April 04, 2014
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F25B43/02; F24F11/02; F25B1/00
Domestic Patent References:
JPH11248267A1999-09-14
JPH0593558A1993-04-16
JP2000249432A2000-09-14
JP2012145302A2012-08-02
JP2010197033A2010-09-09
JP2000283568A2000-10-13
Attorney, Agent or Firm:
Patent Business Corporation Kisa Patent Trademark Office



 
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