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:
Jul. 10, 2012
Filed:
Aug. 23, 2006
Tsugito Nakazeki, Iwata, JP;
Takayoshi Ozaki, Iwata, JP;
Hiroyuki Yamada, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A compressor rotorand a turbine rotorare respectively attached at either end of the main shaftso that the compressor rotoris driven by the power generated by the turbine rotor. The main shaftis supported by rolling contact bearingsandrelative to the radial direction. The thrust force applied to the main shaftis supported by electromagnets. A sensoris provided to detect the thrust force which affects the main shaftthrough air within the compressorand the expansion turbine. In the sensor, sensor elements having the properties changeable in accordance with a pressing force and capable to electrically detect the change in the properties are arranged in a circumferential direction of the main shaft. The sensordetects the thrust force from the output of the sensor elements.