Title:
SCREW COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2022/224727
Kind Code:
A1
Abstract:
This screw compressor compresses a working medium suctioned in from a suction entrance and discharges the compressed working medium from a discharge port, the screw compressor being provided with: a male rotor and a female rotor which rotate while meshing with each other; a casing in which the male rotor and the female rotor are stored, the casing being provided with a bore for forming a working chamber for compressing the working medium together with the male rotor and the female rotor; a drive unit which drives the rotation of at least one among the male rotor and the female rotor; a working chamber closing part which forms a suction port for suctioning the working medium into the working chamber, and closes the working chamber when the working chamber reaches a predetermined capacity; and a suction space allowing the suction entrance and the suction port to communicate, wherein an open space for allowing the suction space and the suction port to communicate is provided between a shaft part of the male rotor on the side opposite from the male rotor and the female rotor with respect to the suction port, and a shaft part of the female rotor.
Inventors:
TSUCHIYA TAKESHI (JP)
CHIBA KOTARO (JP)
NAGATA SHUHEI (JP)
YORIKANE SHIGEYUKI (JP)
MORITA KENJI (JP)
KAJIE YUTA (JP)
CHIBA KOTARO (JP)
NAGATA SHUHEI (JP)
YORIKANE SHIGEYUKI (JP)
MORITA KENJI (JP)
KAJIE YUTA (JP)
Application Number:
PCT/JP2022/015167
Publication Date:
October 27, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
F04C18/16
Domestic Patent References:
| WO2009148884A2 | 2009-12-10 |
Foreign References:
| CN201891606U | 2011-07-06 | |||
| JP2016008509A | 2016-01-18 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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