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Title:
SINGLE-SCREW COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2018/139161
Kind Code:
A1
Abstract:
Provided is a single-screw compressor wherein a gate rotor assembly engaging with a screw rotor is provided with a first gate rotor (60) and a second gate rotor (70). In the first gate rotor (60), a front seal line (67) sliding on the front side wall surface (42) of the helical groove (41) of the screw rotor is formed on the front side surface (64) of each gate (61). In the second gate rotor (70), a rear seal line (77) sliding on the rear side wall surface (43) of the helical groove (41) of the screw rotor is formed on the rear side surface (75) of each gate (71). As a result, it is possible to reduce the wear of the gates caused by the thermal expansion of the gate rotors, and thereby to suppress degradation in the performance of the single-screw compressor.

Inventors:
UENO Hiromichi (Umeda Center Building, 4-12, Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
Application Number:
JP2017/046975
Publication Date:
August 02, 2018
Filing Date:
December 27, 2017
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Building, 4-12 Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
International Classes:
F04C18/52; F04C27/00
Foreign References:
JPS5063607U1975-06-10
JPH01144489U1989-10-04
JP2010001873A2010-01-07
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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