REFRIGERANT COMPRESSOR AND REFRIGERATION/COLD STORAGE APPLIANCE IN WHICH SAME IS USED - PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE

Title:

REFRIGERANT COMPRESSOR AND REFRIGERATION/COLD STORAGE APPLIANCE IN WHICH SAME IS USED

Document Type and Number:

WIPO Patent Application WO/2018/101246

Kind Code:

A1

Abstract:

Inside a sealed container (101) of a refrigerant compressor (100), lubricating oil (103) having a kinematic viscosity at 40°C of 0.1 mm2/S to 5.1 mm2/S is stored, and an electric element (106) and a compression element (107) are accommodated. The compression element (107) is provided with, as a shaft part, a crankshaft (108) comprising a main shaft (109) and an eccentric shaft (110), and as bearing parts, a main bearing (114) that axially supports the main shaft (109) and an eccentric bearing (119) that axially supports the eccentric shaft (110). At least one surface of the main shaft (109) and the eccentric shaft (110) is subjected to a surface treatment, e.g., formation of an oxide film, having a hardness equal to or greater than that of a bearing part (the main bearing (114) or the eccentric bearing (119)). Satisfactory reliability in sliding parts can thereby be achieved even if lubricating oil having lower viscosity is used.

Inventors:

HAYASHI YASUSHI
KAWABATA HIROTAKA
ISHIDA YOSHINORI
OYAGI SHINGO
IDE TERUMASA
YAGI AKIO
AKASHI HIRONARI
HAYASHI HIROTO
YOKOTA KAZUHIRO
TORIMASU HIROKI

Application Number:

PCT/JP2017/042575

Publication Date:

June 07, 2018

Filing Date:

November 28, 2017

Export Citation:

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Assignee:

PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE (SG)
PANASONIC IP MAN CO LTD (JP)

International Classes:

F04B39/00

Domestic Patent References:

WO2013125197A1

2013-08-29

Foreign References:

JP2000297753A	2000-10-24
JPH09303264A	1997-11-25
JP2010168436A	2010-08-05
JP2010025075A	2010-02-04
JP2013217302A	2013-10-24

Other References: