Title:
COMPRESSOR AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/095151
Kind Code:
A1
Abstract:
Provided are a compressor and the like in which outflow of lubricating oil is suppressed. A compressor (100) is provided with: an electric motor (7) including a stator (7a) and a rotor (7b); a crankshaft (4) which rotates integrally with the rotor (7b); a compression mechanism unit (2) which compresses a refrigerant concomitant with the rotation of the crankshaft (4); an arc-shaped or cylindrical balance weight (12) situated on the rotor (7b); and a hermetically sealed container (1) in which the lubricating oil is sealed. The balance weight (12) has a plurality of notched portions which are recessed radially inward from an outer circumferential surface, wherein the plurality of notched portions are each provided in the circumferential direction of the balance weight (12), and open in a space (G1) inside the hermetically sealed container (1).
Inventors:
ADACHI TAKAMASA (JP)
OTA HIROKI (JP)
TASAKA SHUN (JP)
MURAKAMI AKIHIRO (JP)
OTA HIROKI (JP)
TASAKA SHUN (JP)
MURAKAMI AKIHIRO (JP)
Application Number:
PCT/JP2019/044481
Publication Date:
May 20, 2021
Filing Date:
November 13, 2019
Export Citation:
Assignee:
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC (JP)
International Classes:
F04C29/02; F04B39/04; F04C18/02
Domestic Patent References:
| WO2017130565A1 | 2017-08-03 | |||
| WO2018131088A1 | 2018-07-19 |
Foreign References:
| JP2013036372A | 2013-02-21 | |||
| JP2002317775A | 2002-10-31 | |||
| JP2012047060A | 2012-03-08 | |||
| JP2018119437A | 2018-08-02 | |||
| JP2016086608A | 2016-05-19 | |||
| JP2000265956A | 2000-09-26 | |||
| JP2014080939A | 2014-05-08 | |||
| JP2010151070A | 2010-07-08 | |||
| JPH0514585U | 1993-02-26 | |||
| JP2000134882A | 2000-05-12 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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