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:
Apr. 20, 1999
Filed:
May. 29, 1997
Applicant:
Inventor:
William R Krueger, New Berlin, WI (US);
Assignee:
Outboard Marine Corporation, Waukegan, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
7311 / ; 123445 ;
Abstract
A modified fuel injector is fitted with a position sensing device that starts sending position information to the ECU at the onset of pressurization and displacement of fuel in the injector. Thus the effective stroke of the piston in the injector valve can be made to represent the fuel that is delivered to each cylinder of an engine. A position sensor is attached to the injector valve piston assembly. By electronically measuring the amount of effective piston travel, i.e. the piston travel that commences at the onset of pressurization of the injector valve, the amount of fuel delivered to the cylinder is known.