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. 25, 1988
Filed:
Nov. 12, 1987
Arthur O Fitzner, Fond du Lac, WI (US);
William D Harmer, Fond du Lac, WI (US);
Brunswick Corp., Skokie, IL (US);
Abstract
An annular permanent magnet rotor (8) is mounted around and fixed to a crankshaft (4) of an internal combustion engine (2) and has a plurality of circumferentially spaced magnetic poles (14) of sequentially alternating north-south polarity type, and a pole (18) reversed out of the alternating sequence. A first fixed stator (24) is provided by an annular ring concentric to the rotor (8) and has a plurality of poles (26) for magnetic flux coupling with the permanent magnet rotor poles (14). A second fixed stator (48) is axially spaced from the first stator (24) and has a pair of poles (50, 52) for magnetic flux coupling with the rotor (8). A first sensor coil (40) around the first stator (24) outputs a timing angle signal. Processing circuitry produces a series of digital pulses having ANGLE-defining edges occurring at fixed angular increments of crankshaft rotation. A second sensor coil (56) around the second stator (48) outputs an advance warning signal that a specific REFERENCE ANGLE-defining edge is about to appear in the series of digital pulses produced from the first sensor coil's output.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile