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Title:
SCROLL TYPE FLUID MACHINE, SCROLL MEMBER AND METHOD FOR WORKING THE SAME
Document Type and Number:
Japanese Patent JP3542144
Kind Code:
B2
Abstract:

PURPOSE: To provide a scroll fluid machine capable of giving the equal strength even to scroll bodies having materials different in the turning and fixed sides, being miniaturized dimensionally and reducing the internal leakage to improve the performance.
CONSTITUTION: One side curve of the turning outside curve 2a and turning inside curve 2b of a turning side scroll body 2 is formed of an algebraic represented by a formula I in the polar coordinate form (where r: radius vector, θ: amplitude, a: factor and k: exponent). This curve and any one side curve of the fixed outside curve 5a and fixed inside curve 5b of a fixed side scroll body 5 are constituted to have about 180° phase difference therebetween and properly change the thickness of the turning and fixed side scroll walls.


Inventors:
Hirokatsu Kasogabe
Hiroaki Hatake
Akihiko Ishiyama
Application Number:
JP29841092A
Publication Date:
July 14, 2004
Filing Date:
November 09, 1992
Export Citation:
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Assignee:
株式会社日立製作所
International Classes:
F01C1/02; B23P13/02; F04C18/02; (IPC1-7): F04C18/02; B23P13/02; F01C1/02
Domestic Patent References:
JP311102A
JP648381A
Attorney, Agent or Firm:
Yasuo Sakuta



 
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