Cam phaser centrally located along concentric camshafts

Patent No. 8,561,584

Issued: October 22, 2013
Filed: March 29, 2011
PCT Filed: March 29, 2011
PCT No.: PCT/US2011/030250
371(c)(1),(2),(4) Date: September 25, 2012
PCT Pub. No.: WO2011/126815
PCT Pub. Date: October 13, 2011

Inventors: Wigsten; Mark (Lansing, NY)
Assignee: BorgWarner Inc. (Auburn Hills, MI)


A camshaft assembly for extending duration of a valve event including a hollow outer shaft, an inner shaft received within the hollow outer shaft, a plurality of cam lobes, and a phaser located between the plurality of cam lobes approximately in the middle of the inner and outer shaft.

Reference to Related Applications

This application claims one or more inventions which were disclosed in Provisional Application No. 61/321,202 filed Apr. 6, 2010, entitled "CAM PHASER CENTRALLY LOCATED ALONG CONCENTRIC CAMSHAFTS". The benefit under 35 USC .sctn.119(e) of the United States provisional application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference.


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