Title:
冷凍サイクル装置
Document Type and Number:
Japanese Patent JP7393680
Kind Code:
B2
Abstract:
A hydrocarbon refrigerant can be easily dissolved in a refrigerator oil and, as a result, the viscosity of the refrigerator oil is likely to be decreased to cause the undue wear of a sliding member in a compressor. An air conditioning apparatus (1) is provided with a refrigerant circuit (10) in which a compressor (11), an outdoor heat exchanger (13), an expansion valve (9) and an indoor heat exchanger (18) are connected in this order and through which a refrigerant circulates. The compressor (11) has a sliding member that includes a first bearing metal (26) or an oldham ring (25). In the sliding member, at least one of two members that slide on each other is formed from aluminum or an aluminum alloy. The refrigerant that circulates through the refrigerant circuit (10) is a hydrocarbon refrigerant. A refrigerator oil to be used in the compressor (11) has a refrigerant solubility of 30% or less when measured under a pressure of 1.9 MPa and at a temperature of 60°C.
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Inventors:
Arisa Kira
Hideki Matsuura
Masaru Tanaka
Haruka Shintaku
Hideki Matsuura
Masaru Tanaka
Haruka Shintaku
Application Number:
JP2022025587A
Publication Date:
December 07, 2023
Filing Date:
February 22, 2022
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B1/00; C09K5/04; C10M107/34
Domestic Patent References:
| JP11302675A | ||||
| JP2005264931A | ||||
| JP2008308610A | ||||
| JP2012031239A |
Attorney, Agent or Firm:
Patent Attorney Corporation Shinju Global IP