The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2010
Filed:
Dec. 13, 2006
Dominic Borraccia, Spencerport, NY (US);
Natalie G. Payne, Rochester, NY (US);
Dominic Borraccia, Spencerport, NY (US);
Natalie G. Payne, Rochester, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A vane-type camshaft phaser includes a rotor having a plurality of vanes disposed in a stator having a plurality of lobes, the interspersion of vanes and lobes defining a plurality of alternating valve timing advance and valve timing retard chambers. Each vane and lobe tip is provided with an axially extending groove having an outward expansion of width. A wiper seal element, formed by stamping and folding from a single piece of sheet material, has folded wings that extend under compression into the groove. The spring loading of the wings against the tapered walls of the groove acts to urge the wiper seal element out of the groove and toward the opposing stator or rotor wall, thus ensuring a continuous forced sealing contact of the wiper seal element with the opposing wall and the groove walls during operation of the camshaft phaser.