Method to ensure robust operation of a pin lock in a vane style cam phaser

Patent No. 6,766,777

Issued: July 27, 2004
Filed: May 19, 2003
Based on Provisional Application No. 60/389,067, filed Jun. 14, 2002

Inventor: Simpson, Roger; Gardner, Marty (Ithaca, NY)

Assignee:BorgWarner, Inc. (Auburn Hills, MI)

A variable camshaft timing phaser having a locking pin directly influenced by engine oil, which is not impacted by any intervening valves. The locking pin is comprised of a tapered pin, which fits into a tapered recess. The locking pin is biased towards engaging by a spring, and is retracted by oil from the engine oil supply. The locking pin remains disengaged from the tapered recess as long as the oil pump is on.

Go Back for more representative patents.

Home || Intellectual Property || Patents || Trademarks || Copyrights

Brown & Michaels, PC
400 M & T Bank Building
118 North Tioga Street - The Commons
Ithaca, NY 14850
Phone: (607) 256-2000 Fax: (607) 273-2609