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. 30, 2010
Filed:
Jun. 23, 2005
Johann Wagner, Graz, AT;
Helmut Melde-tuczai, Graz, AT;
Johannes Rieger, Semriach, AT;
AVL List GmbH, Graz, AT;
Abstract
An internal combustion engine has at least one cylinder and at least one gas exchange valve () controlled by a first cam () on a first camshaft () and by a second cam () on a second camshaft (), at least one camshaft () having an adjustable phase position in order to modify the control times of the gas exchange valve (). The first cam () acts upon actuating means () and the second cam () upon actuating means () which actuate the gas exchange valve (). The actuating means () are designed in such a way that the gas exchange valve () opens only when both the first cam () and the second cam () are acting upon the actuating means (). A simple structure with very high degrees of freedom for the control is achieved in that the actuating means () comprise a lever which actuates the gas exchange valve () and is actuated by both cams ().