Variable camshaft timing mechanism with a default mode
Patent No. 8,820,280
Issued: September 2, 2014
Inventor: Smith; Franklin R. (Cortland, NY)
A variable cam timing phaser with a control valve for directing fluid from a fluid input to and from the advance chamber and the retard chamber of the phaser through an advance line, a retard line, a common line, an advance default line, a retard default line, and at least one exhaust line. The control valve being movable between a default mode and an oil pressure actuated mode. In the default mode, the control valve blocks exhaust lines, retaining fluid within the chambers. The oil pressure actuated mode includes at least an advance mode, a retard mode, and a holding position.
Reference to Related Applications
This application claims one or more inventions which were disclosed in Provisional Application No. 61/389,451, filed Oct. 4, 2010, entitled "VARIABLE CAMSHAFT TIMING MECHANISM WITH A DEFAULT MODE" and Provisional Application No. 61/417,943, filed Nov. 30, 2010, entitled "VARIABLE CAMSHAFT TIMING MECHANISM WITH A DEFAULT MODE". The benefit under 35 USC 119(e) of the United States provisional applications are hereby claimed, and the aforementioned application is hereby incorporated herein by reference.
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) 256-3628
© 2014 Brown & Michaels PC