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:
Oct. 28, 2003
Filed:
May. 23, 2002
Applicant:
Inventors:
Kenneth J. Dauer, Avon, NY (US);
David J. Trapasso, Bloomfiled, NY (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/34 ;
U.S. Cl.
CPC ...
F01L 1/34 ;
Abstract
A vane-type cam phaser wherein a realtime method of measuring the axial position of the phaser's locking pin is provided. A magnet is fixed to the nose portion of the locking pin. A Hall-effect sensor is attached to the stator of the phaser in proximity to the magnet. As the locking pin moves through its range of travel, the magnet moves either toward or away from the sensor resulting in a proportional increase or decrease in sensor output voltage. By reading the voltage output, the axial position of the locking pin can be determined.