Tapered roller drive for electric VCT phaser

Patent No. 10,180,088 

Issued: January 15, 2019
Filed: May 21, 2016
Term Extension: 182 days

Inventor: McCloy; Chad (Cortland, NY)
Assignee: BorgWarner Inc. (Auburn Hills, MI)


An electric phaser for dynamically adjusting a rotational relationship of a camshaft with respect to an engine crankshaft of an internal combustion engine includes an electric motor and a tapered roller drive. The tapered roller drive includes a sun, rollers, a carrier, at least one ring, and at least one load generator providing an axial load. The rollers are maintained in rolling engagement with the sun and the ring without the use of teeth. In some embodiments, the tapered roller drive is based on a fixed-sun design. In other embodiments, the tapered roller drive is based on a split ring design.

Reference to Related Applications

Claims Benefit of Provisional Application 62/167,938 filed May 29, 2015


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