Title:
OIL-COOLED SCREW COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2024/034235
Kind Code:
A1
Abstract:
This oil-cooled screw compressor is provided with: a compressor body (1) including a pair of screw rotors (11); and a gear room (24) that accommodates a power transmission gear (21) to transmit rotation to the pair of screw rotors (11) and has an oil discharge port (24a) for lubricant on a bottom surface thereof. The oil discharge port (24a) communicates with an oil inflow port (12af) opening into a casing (12) so as to be positioned between suction side end surfaces (11ab) and (11bb) of the pair of screw rotors (11) and a suction side inner wall surface (12ae) opposed to the suction side end surfaces (11ab) and (11bb). The casing (12) has a downslope inclination part (12ah) descending toward a bottom part (12ag) of the casing (12) opposed to a lower end of one of the pair of screw rotors (11). The oil inflow port (12af) is provided at a position higher than the bottom part (12ag) of the casing (12) in the inclination part (12ah).
Inventors:
KAJIE YUTA (JP)
MORITA KENJI (JP)
YORIKANE SHIGEYUKI (JP)
MORITA KENJI (JP)
YORIKANE SHIGEYUKI (JP)
Application Number:
PCT/JP2023/020134
Publication Date:
February 15, 2024
Filing Date:
May 30, 2023
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
F04C18/16; F04C29/02
Domestic Patent References:
| WO2022255275A1 | 2022-12-08 |
Foreign References:
| JP2002021758A | 2002-01-23 | |||
| JPS5688986A | 1981-07-18 | |||
| JPS3612832B1 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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