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Title:
SCREW COMPRESSOR
Document Type and Number:
Japanese Patent JP2008127990
Kind Code:
A
Abstract:

To provide a screw compressor capable of effectively sealing a clearance between a screw rotor and casing and of enhancing compression performance.

A screw compressor 1 which is equipped with a female rotor and a male rotor 2 which rotate while meshing with each other and with a casing 3 which accommodates the male rotor 2 and a female rotor and forms a plurality of compression operation chambers, includes a through hole 18 of a hollow part 11 in the male rotor 2 and a shaft part 13 which communicates to the hollow part, a jetting hole 16 which is formed in a rotor discharge side end 15 of the male rotor 2 and which jets lubricating oil from the hollow part 11, a through hole of a hollow part in the female rotor and a shaft part which communicates to the hollow part, a jetting hole which is formed in a rotor discharge side end of the female rotor and which jets lubricating oil from the hollow part.


Inventors:
Kuroki, Kensuke
Nishihara, Tatsutomo
Wada, Kouji
Kamiya, Yuji
Application Number:
JP2006000309884
Publication Date:
June 05, 2008
Filing Date:
November 16, 2006
Export Citation:
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Assignee:
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTD
International Classes:
F04C27/00; F04C18/16; F04C29/00
Attorney, Agent or Firm:
春日 讓