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Patent Searching and Data


Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/229842
Kind Code:
A1
Abstract:
This compressor comprises: a shell that constitutes an outer frame; a compression mechanical unit that is housed in the shell and that constitutes a compressing chamber for compressing a refrigerant; a drive mechanical unit that is housed in the shell and that generates rotary movement; a shaft that connects the drive mechanical unit and the compression mechanical unit to convey the rotary movement of the drive mechanical unit to the compression mechanical unit; a bearing unit that supports the shaft; and a tubular member that has a hollow section formed to allow the shaft to be inserted thereinto, that is slidably disposed with respect to the bearing unit, and that rotates along with the shaft. The tubular member has, on the external wall thereof, a hard coating film layer formed of a hard coating film, and the tubular member is disposed such that the hard coating film layer and the bearing section face each other.

Inventors:
KOYAMA SHUHEI (JP)
IMANISHI TOSHIKI (JP)
UKAI MITSUYOSHI (JP)
Application Number:
JP2018/020525
Publication Date:
December 05, 2019
Filing Date:
May 29, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C18/02; F04B39/00; F04C29/00
Domestic Patent References:
WO2017168631A12017-10-05
WO2015140869A12015-09-24
Foreign References:
JP2012127240A2012-07-05
US20070092390A12007-04-26
JP2007205254A2007-08-16
JP2005207258A2005-08-04
JP2013002559A2013-01-07
JPH10238486A1998-09-08
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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