Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2021/020346
Kind Code:
A1
Abstract:
Provided is a compressor in which: a balance weight 90 is disposed above an electric motor portion 30 and below a compressor mechanism portion 20; the balance weight 90 is fixed to a drive shaft 40 by means of a linking portion 91; an oil reservoir portion 15 is formed in an inner bottom portion 14 of a hermetically sealed container 10; an oil feed passage 42 for guiding lubricating oil stored in the oil reservoir portion 15 to the compressor mechanism portion 20 and to a bearing 61, and a communicating hole 44 which communicates with the oil feed passage 42 are formed in the drive shaft 40; the communicating hole 44 is positioned below the balance weight 90; the lubricating oil guided from the oil feed passage 42 is discharged from the communicating hole 44; and by causing a lower end surface 90d of the balance weight 90 to protrude below a lower end 91d of the linking portion 91 of the balance weight 90, so as to approach the electric motor portion 30, contamination of a refrigerant by the lubricating oil discharged from the communicating hole 44 can be reduced.
Inventors:
HIGASHIDA TAKASHI
SATO KAZUYA
KON TSUTOMU
FUKUDA AKINORI
SATO KAZUYA
KON TSUTOMU
FUKUDA AKINORI
Application Number:
PCT/JP2020/028707
Publication Date:
February 04, 2021
Filing Date:
July 27, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F04C18/02; F04C29/02
Foreign References:
| US20080175738A1 | 2008-07-24 | |||
| JPH05157079A | 1993-06-22 | |||
| US20130251543A1 | 2013-09-26 |
Attorney, Agent or Firm:
ABE Shinichi et al. (JP)
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