Title:
SCREW COMPRESSOR AND FREEZER
Document Type and Number:
WIPO Patent Application WO/2022/209582
Kind Code:
A1
Abstract:
This screw compressor (10) is equipped with: a casing (11); a motor (15) housed in the casing (11); a drive shaft (19) which is driven by the motor (15) and is capable of changing rotation speed; a compression mechanism (30) having a compression chamber (35) for compressing a fluid formed therein; an oil supply channel (40) for supplying oil to the compression chamber (35); and a pump (50) which is positioned in the oil supply channel (40), intakes oil which has a higher pressure than the compression chamber (35) intake pressure, and is driven by the drive shaft (19).
Inventors:
IMAMURA YOSHIYUKI (JP)
Application Number:
PCT/JP2022/009366
Publication Date:
October 06, 2022
Filing Date:
March 04, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04C18/16; F04C29/02; F25B1/047
Foreign References:
| US4497185A | 1985-02-05 | |||
| JPH07208371A | 1995-08-08 | |||
| JP2009197794A | 2009-09-03 | |||
| JPS58106588U | 1983-07-20 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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