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:
Sep. 07, 2010
Filed:
Jul. 30, 2007
Cheng-chung Yen, Hsinchu, TW;
Chung-ping Chiang, Hsinchu, TW;
Jiing-fu Chen, Hsinchu, TW;
Yung-lo Chow, Hsinchu, TW;
Chun-han Chen, Hsinchu, TW;
Cheng-Chung Yen, Hsinchu, TW;
Chung-Ping Chiang, Hsinchu, TW;
Jiing-Fu Chen, Hsinchu, TW;
Yung-Lo Chow, Hsinchu, TW;
Chun-Han Chen, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
A rotor mechanism of a centrifugal compressor connectable to a power output device and configured to block leakage of lubricants and to recycle lubricants to an oil sump is provided, which includes a rotary shaft with a rolling bearing and a screw nut, a bearing housing for receiving the rolling bearing, and a bearing plate connected to the bearing housing. The screw nut has a surface provided with an oil throw seal, and the bearing housing. As the bearing plate is provided with an oil channel in contact with the oil-returning hole and either one of the bearing housing and the bearing plate is provided with a first labyrinth seal in contact with the screw nut, lubricants leaking out of the rolling bearing is allowed to go to the oil sump via the oil channel and oil-returning hole. The oil slinger thus blocks the lubricants from leaking out of the first labyrinth seal.