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:
Jun. 14, 2016
Filed:
Mar. 14, 2012
Mark Wigsten, Lansing, NY (US);
David C. White, Dryden, NY (US);
James Sisson, Locke, NY (US);
BorgWarner, Inc., Auburn Hills, MI (US);
Abstract
A variable cam timing assembly () and method for an internal combustion engine of a motor vehicle includes a cam phaser () connected between an inner camshaft () and an outer camshaft () of a concentric camshaft (). A torsional drive mechanism () connects between the cam phaser () and the inner camshaft () for transmitting rotational torque. The torsional drive mechanism () permits adjustment for perpendicularity and axial misalignment of the inner and outer camshafts (), while maintaining a torsionally stiff coupling between the cam phaser () and one of the inner and outer camshafts () of the concentric camshaft (). The torsional drive mechanism () can be formed from one of a flexible shaft coupling (), a transversely split driven gear (), a transversely split sprocket ring gear (), a transverse face spline gear (), and a pin and slot combination drive ().