Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2020/230232
Kind Code:
A1
Abstract:
This compressor comprises a sealed container having: an oil accumulation space that accumulates oil; a compression mechanism portion that is accommodated in the sealed container and that compresses a working gas flowing into the sealed container; and a drive shaft that drives the compression mechanism portion, the drive shaft having an oil supply flow channel formed therein. The compressor also comprises an oil supply pump that is driven by the rotation of the drive shaft and that supplies the oil accumulated in the oil accumulation space to the oil supply flow channel of the drive shaft, and a bearing to which the oil is supplied from the oil supply flow channel and which supports the rotation of the drive shaft. A gap between the bearing and the drive shaft serves as a bearing flow channel through which the oil flows, the gap being set such that, within the oil flow channel in the oil supply pump, the flow channel resistance of a part of a clearance flow channel is less than the flow channel resistance of the bearing flow channel.
Inventors:
GOMMORI MASATO (JP)
Application Number:
PCT/JP2019/018920
Publication Date:
November 19, 2020
Filing Date:
May 13, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C29/02; F04C18/02
Foreign References:
| JPH0430285U | 1992-03-11 | |||
| JPS6332189A | 1988-02-10 | |||
| JPH1137078A | 1999-02-09 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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