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:
Aug. 29, 2000
Filed:
Dec. 10, 1998
Phillip K Gaynor, Fond du Lac, WI (US);
Edwin B Hatch, West Bend, WI (US);
Jeffery C Ehlers, Neenah, WI (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
An idle speed control system for a marine propulsion system controls the amount of fuel injected into the combustion chamber of an engine cylinder as a function of the error between a selected target speed and an actual speed. The speed can be engine speed measured in revolutions per minute or, alternatively, it can be boat speed measured in nautical miles per hour or kilometers per hour. By comparing target speed to actual speed, the control system selects an appropriate pulse with length for the injection of fuel into the combustion chamber and regulates the speed by increasing or decreasing the pulse width.