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. 14, 2000
Filed:
Jun. 07, 1999
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
For a variable valve operating mechanism for an internal-combustion engine having variable valve lifts, which can be achieved at constant opening angles, variable valve opening angles are achieved in the case of particularly small valve lifts. To do so, the rocker axis of a valve lever, which is essentially parallel to the axis of rotation of the camshaft, can be dynamically displaced relative to a camshaft along a path in a controlled manner such that, when the rocker axis is displaced, the valve lever is activated for the valve operation by way of a roller which is controlled only approximately from the starting area to the end area of a cam tip of a radial cam on the camshaft.