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:
Jan. 20, 1998
Filed:
Dec. 06, 1996
Gerald N Coleman, Peoria, IL (US);
James E Sibley, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method and system for the control of the fuel injection timing in an internal combustion engine using a low cetane quality fuel such as an aqueous fuel emulsion is provided. The disclosed system includes a compression ignition engine adapted to receive a prescribed supply of an aqueous fuel emulsion. The prescribed supply of fuel is preferably determined by an fuel system control unit as a function of one or more engine operating parameters. The disclosed system also includes an exhaust sensor located proximate the engine exhaust so as to detect the presence and level of selected exhaust products, such as carbon monoxide, in the engine exhaust. The level of carbon monoxide or other such exhaust product, as measured by the sensor, is input to the engine control unit where it is processed together with various other engine operating parameters to produce a prescribed fuel injection timing signal which operatively controls the fuel injection timing.