Title:
密閉型コンプレッサ内のアクシャル軸受装置
Document Type and Number:
Japanese Patent JP2007532821
Kind Code:
A
Abstract:
A magnetic axial bearing arrangement in a reciprocating hermetic compressor, comprising: a cylinder block ( 20 ) and a radial bearing hub ( 40 ); a crankshaft ( 50 ) securing a rotor ( 61 ) of an electric motor ( 60 ), said arrangement comprising at least one magnetic axial bearing assembly ( 100 ) formed of a pair of magnet elements ( 101 ), a magnet element ( 101 ) of each pair being mounted to a respective part of at least one of the pairs of parts of crankshaft ( 50 ) and cylinder block ( 20 ), of cylinder block ( 20 ) and rotor ( 61 ), or of crankshaft ( 50 ) and external bearing ( 120 ), the parts of at least one of the pairs of parts carrying respective confronting mechanical stops which are maintained spaced apart by an axial gap (FA) smaller than a magnetic axial gap (FM) higher than zero and to be maintained between the magnet elements ( 101 ) of a magnetic axial bearing assembly ( 100 ).
Inventors:
Manke, Adelson Lewis
Dou Conal, Luis Huon
Dou Conal, Luis Huon
Application Number:
JP2007507629A
Publication Date:
November 15, 2007
Filing Date:
April 11, 2005
Export Citation:
Assignee:
Whirlpool Ethi A
International Classes:
F04B39/00; F04B39/02; F16C17/02; F16C32/04; F16C33/10; F16C39/06
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura