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:
Mar. 02, 1999
Filed:
Feb. 19, 1997
Bradley D Mottier, Jacksonville, FL (US);
J Norman MacLeod, Jacksonville, FL (US);
Dean Mechlowitz, Ponte Vedra Beach, FL (US);
Unison Industries Limited Partnership, Jacksonville, FL (US);
Abstract
A magneto-based, variable-timing ignition system for an internal combustion engine is provided that maintains at least one operating parameter of the engine within a predetermined limit. An electronic controller sets the timing of spark events based on engine performance criteria such as the temperature of the engine's cylinder head, speed and manifold pressure. If the values of one of these parameters, such as engine temperature, extends beyond a predetermine limit, the electronic controller retards the advance timing of the spark events to draw back within the limit the values of the parameter. The timing of spark events is ordinarily under electronic control. If the electronic control fails, the system provides spark events whose timing are fixed and synchronized to the mechanical rotation of the crankshaft of the engine.