Means to add torsional energy to a camshaft 

Patent No. 6,978,749

Issued: December 27, 2005
Filed: August 13, 2004

Inventors: Simpson; Roger T. (Ithaca, NY)
Assignee: BorgWarner Inc. (Auburn Hills, MI)

A device for providing additional torsional energy for a cam shaft is provided. The device includes at least one main cam lobe formed on a rotating shaft; a valve operating mechanism disposed to be engaged by the main cam lobe; and an outer cylinder encompassing the valve operating mechanism, and capable of movement that is independent of the valve operating mechanism, the outer cylinder being disposed to provide torsional energy to the rotating shaft.


This application claims an invention which was disclosed in Provisional Application No. 60/515,044 filed Oct. 27, 2003 entitled "MEANS TO ADD TORSIONAL ENERGY TO A CAMSHAFT". The benefit under 35 USC 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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