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:
Mar. 11, 2003
Filed:
Sep. 25, 2001
Karl-Heinz Vogel, Backnang Steinbach, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
An exhaust gas turbocharger for an internal combustion engine includes a turbine wheel and a compressor impeller, disposed on a common shaft which is rotatably supported by friction bearings, to which lubricating oil is supplied by an oil supply means, a turbine speed detection device being provided with a pressure modulating structure, which is disposed on the shaft for modulating the oil pressure in the oil supply means, in accordance with the speed of the shaft, and an oil pressure sensor arranged in the oil supply means for sensing the oil pressure modulations for determining the speed of the turbocharger.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile