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Patent Searching and Data


Title:
SCROLL TYPE FLUID MACHINERY
Document Type and Number:
Japanese Patent JP3137524
Kind Code:
B2
Abstract:

PURPOSE: To reduce the occurrence of bending through improvement of rigidity of the leg part of a frame and to suppress the generation of an excessive compression load on a seal member by coupling the tip of the leg part of the frame through a reinforcing plate.
CONSTITUTION: A fixed scroll 1 is pressed against a revolving scroll by means of a back pressure based on a delivery gas pressure and leakage of gas from a closed space is suppressed. When liquid is sucked in a closed pace 24, the fixed scroll 1 is levitated through a support spring 32 and the gas is escaped to prevent the occurrence of breakage of a compressor. In this case, an annular reinforcing plate 91A formed of a plate and having sufficient rigidity is fastened against a leg 6b by means of a bolt 37 with the support spring 32 nipped therebetween. The part, passing a position above a flange 14, of the fixed scroll 1 is formed in a levitating shape. The support spring 32 is supported to the leg 6b of the frame 6 fixed to a closed housing 8 and the fixed scroll 1 is supported in a levitating state by the support spring 32.


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Inventors:
Kazuhide Watanabe
Takeda Kinon
Masumi Sekita
Takahide Ito
Kazuya Tani
Application Number:
JP1259794A
Publication Date:
February 26, 2001
Filing Date:
February 04, 1994
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F04C27/00; F04C18/02; (IPC1-7): F04C18/02
Attorney, Agent or Firm:
Arata Ishikawa