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. 09, 2004
Filed:
Apr. 22, 2002
Wolfgang Salber, Aachen, DE;
Thomas Esch, Aachen, DE;
FEV Motorentechnik GmbH, Aachen, DE;
Abstract
A method of influencing the mixture formation and charge movement in the cylinders of a piston internal combustion engine, having at least one gas intake valve and at least one gas outlet valve per cylinder. Each of the valves is provided with a fully variable, preferably electrimagnetic, valve drive and is controllable via an electronic control device that is configured such that within predetermined speed ranges and/or for predetermined load conditions, at least some of the gas intake valves and/or the gas outlet valves can be moved, respectively in dependence on the piston stroke, with a stroke course that is variable, relative to the opening and closing moments and/or the opening time, the opening width and/or the opening duration and/or the movement speed.