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. 30, 2010
Filed:
Jan. 04, 2008
Jack D. Hutcheson, Garland, TX (US);
Andreas Knecht, Kusterdingen, DE;
Dirk Pohl, Kirchentellinsfurt, DE;
Glenn A. Barton, Lake Orion, MI (US);
Stephen L. Nance, Highland Village, TX (US);
Joe S. Cole, Mesquite, TX (US);
Jack D. Hutcheson, Garland, TX (US);
Andreas Knecht, Kusterdingen, DE;
Dirk Pohl, Kirchentellinsfurt, DE;
Glenn A. Barton, Lake Orion, MI (US);
Stephen L. Nance, Highland Village, TX (US);
Joe S. Cole, Mesquite, TX (US);
Hilite International Inc., Nuertingen, DE;
Abstract
The present invention provides a variable valve timing device for an internal combustion engine having a double camshaft. A gas exchange valve control shaft is provided which has first and second concentrically arranged cam shafts that are adjustable in a rotatable manner with respect to each other, by which a cam of the first cam shaft is adjusted in terms of its angle towards a cam of the second cam shaft. A cam phasing device is provided which operates by rotatable vanes provoking a swivelling relative movement between a driven member and an output member. The cam phasing device comprises at least two pivotable vane adjusters. Each pivotable vane adjuster is assigned to one of the two cam shafts. The pivotable vane adjusters are arranged axially one after the other in a direction of a valve control shaft. Each pivotable vane adjuster may be designed as a rotor-type vane adjuster.