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Title:
GAS COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2016/157449
Kind Code:
A1
Abstract:
Provided is a gas compressor that can realize improved performance by reducing pressure loss in a discharge passage. The gas compressor comprises: screw rotors (10A, 10B) that engage with each other; a plurality of bearings (15A, 15B, 16A, 16B) that respectively and rotatably support the screw rotors (10A, 10B); timing gears (17A, 17B) that are for causing the screw rotors (10A, 10B) to rotate without contacting each other; and a casing (12, 13). The casing (12, 13) includes: a housing chamber (18) that houses a tooth part (11A) of the male rotor (10A) and a tooth part (11B) of the female rotor (10B) and forms a plurality of compression chambers (S); intake passages (22A, 22B) that are for introducing a gas into the compression chambers (S); and a discharge passage (19) that is for discharging a compressed gas from the compression chambers (S). The discharge passage (19) is formed such that at least part of a discharge port (20) and part of an outlet port (21) overlap projection planes of the timing gears (17A, 17B) in an axial direction.

Inventors:
HORIUCHI HIROSHI (JP)
KASAHARA MASAYUKI (JP)
Application Number:
JP2015/060244
Publication Date:
October 06, 2016
Filing Date:
March 31, 2015
Export Citation:
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Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
F04C18/16
Foreign References:
JPH01237383A1989-09-21
JPS5918288A1984-01-30
JPS51106918U1976-08-26
JPS62247193A1987-10-28
Attorney, Agent or Firm:
KAICHI IP (JP)
Patent business corporation development-of-knowledge international patent firm (JP)
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