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. 23, 1999
Filed:
Mar. 31, 1997
Applicant:
Inventors:
Susumu Yamazaki, Iwata, JP;
Kazumasa Itoh, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
440 84 ; 440 87 ;
Abstract
An engine control is provided for controlling an engine powering a planing-type watercraft. The engine control activates a fuel increasing system for providing an additional amount of fuel to said engine over a first amount of fuel during a period of acceleration of said watercraft to its planing speed. In addition, the engine control preferably adjusts the position of an exhaust timing valve to delay the passage of exhaust from the combustion chamber(s) of the engine during that time the additional fuel amount is being provided to the engine in order to prevent overheating and fouling of an exhaust catalyst.