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:
Jul. 14, 2015
Filed:
Jan. 25, 2012
Mark Wigsten, Lansing, NY (US);
Michael W. Marsh, Dryden, NY (US);
Mark Wigsten, Lansing, NY (US);
Michael W. Marsh, Dryden, NY (US);
BorgWarner, Inc., Auburn Hills, MI (US);
Abstract
A variable cam timing phaser for an internal combustion engine having a concentric camshaft can include a stator () having an axis of rotation. An outer rotor () can rotate independently relative to the axis of rotation of the stator (). A combination of an outer vane () and cavity () can be associated with the outer rotor () to define first and second outer variable volume working chambers (). A radially inner located rotor () can rotate relative to the axis of rotation and independently of both the stator () and the outer rotor (). A combination of an inner vane () and a cavity () can be associated with the inner rotor () to define first and second inner variable volume working chambers (). When the first and second, outer and inner chambers () selectively communicate with a source of pressurized fluid, phase orientation of the outer and inner rotors () with respect to one another and with respect to the stator () is facilitated.