The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2012
Filed:
Apr. 17, 2009
Teng-yuan Wu, Changhua County, TW;
Cheng-chung Yen, Hsinchu, TW;
Chung-ping Chiang, Taipei, TW;
Jiing-fu Chen, Hsinchu, TW;
Teng-Yuan Wu, Changhua County, TW;
Cheng-Chung Yen, Hsinchu, TW;
Chung-Ping Chiang, Taipei, TW;
Jiing-Fu Chen, Hsinchu, TW;
Industrial Technology Research Institute, Hsin-Chu, TW;
Abstract
A magnetic-gas bearing disposed in a compressor is provided. The magnetic-gas bearing includes an axis, multiple magnetic elements, multiple magnetic coils and a static pressure gas restrictor. The magnetic elements encircle the axis, and each magnetic element has two ends wound around by the magnetic coils respectively, such that the two ends of each magnetic element form a first magnetic pole and a second magnetic pole respectively. The static pressure gas restrictor encircles the axis and has a jet opening, such that the gas pass through the jet opening to form a gas-film between the static pressure gas restrictor and the axis. Besides, an oil-free centrifugal blade compressor including the magnetic-gas bearing mentioned above is also provided.