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:
Apr. 04, 2000
Filed:
Oct. 15, 1998
Walter Buck, Ludwigsburg, DE;
Roland Schwegler, Weinstadt, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a variable control arrangement in an internal combustion engine including intake and exhaust valves, a valve operating mechanism with a first camshaft controlling the intake valve opening times and a second camshaft controlling the intake valve closing times, a four gear coupler drive mounted on the first and second camshafts for controlling their relative angular positions, a control wheel supported coaxially with one of the camshafts and connected to the coupler drive for adjusting the relative angular position of the first and second camshafts, and a control arrangement including a control motor for operating the control wheel, the coupler drive with the control wheel and the valve operating mechanism are combined in a camshaft bearing housing assembly which is mounted on the cylinder head.