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:
Nov. 18, 2003
Filed:
Sep. 27, 2000
Harald Philipp, Wegersfeld, AT;
Ernst Winklhofer, St. Johann Ob Hohenburg, AT;
Martin Baumgartner, Graz, AT;
AVL List GmbH, Graz, AT;
Abstract
An optoelectronic measuring device for monitoring combustion processes in the combustion chamber of an internal combustion engine during operation includes optical sensors assigned to the combustion chamber and connected to an evaluation unit, the sensor ends on the side of the combustion chamber being essentially positioned in a plane and the sensors being aligned so that the individual viewing angles of the sensors will uniformly cover at least one predefined measuring sector of the combustion chamber. A simple way of localizing the origin of engine knocking in the combustion chamber is ensured by positioning the optical sensors in an essentially cylindrical component projecting into the combustion chamber with the sensor ends positioned essentially radially along the wall of the component.