Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/171427
Kind Code:
A1
Abstract:
This compressor is provided with: a compression mechanism section disposed within a hermetic container; an electric motor section which drives the compression mechanism section; a drive shaft which transmits the drive force of the electric motor section to the compression mechanism section; a primary bearing which supports the upper part of the drive shaft; a secondary bearing which supports the lower part of the drive shaft; a radial receiving surface which is provided on the secondary bearing and which supports the radial surface of the drive shaft in a slidable manner; and a thrust receiving surface which supports the thrust surface of the drive shaft in a slidable manner. The compressor has, between the thrust surface and the thrust receiving surface: a contact point where the thrust surface and the thrust receiving surface are in contact with each other through curved surfaces; and a gap which continuously increases radially outward from the contact point.
Inventors:
YOKOYAMA TETSUHIDE (JP)
IWASAKI TOSHIAKI (JP)
HORIGUCHI DAISUKE (JP)
ITO SHINICHI (JP)
OKAMOTO MASAYA (JP)
KOYAMA SHUHEI (JP)
IWASAKI TOSHIAKI (JP)
HORIGUCHI DAISUKE (JP)
ITO SHINICHI (JP)
OKAMOTO MASAYA (JP)
KOYAMA SHUHEI (JP)
Application Number:
PCT/JP2018/008315
Publication Date:
September 12, 2019
Filing Date:
March 05, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C29/00
Domestic Patent References:
| WO2016075768A1 | 2016-05-19 |
Foreign References:
| JPH07279967A | 1995-10-27 | |||
| JP2004011530A | 2004-01-15 | |||
| JPH06173954A | 1994-06-21 | |||
| JP2004124780A | 2004-04-22 | |||
| US20150275898A1 | 2015-10-01 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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