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:
Feb. 20, 2007
Filed:
Sep. 03, 2004
Gerald N. Coleman, Dunlap, IL (US);
Kevin P. Duffy, Metamora, IL (US);
Stephen A. Faulkner, Peoria, IL (US);
Eric C. Fluga, Dunlap, IL (US);
Jonathan P. Kilkenny, Peoria, IL (US);
Scott A. Leman, Eureka, IL (US);
Cornelius N. Opris, Peoria, IL (US);
Maarten Verkiel, Metamora, IL (US);
James R. Weber, Lacon, IL (US);
Gerald N. Coleman, Dunlap, IL (US);
Kevin P. Duffy, Metamora, IL (US);
Stephen A. Faulkner, Peoria, IL (US);
Eric C. Fluga, Dunlap, IL (US);
Jonathan P. Kilkenny, Peoria, IL (US);
Scott A. Leman, Eureka, IL (US);
Cornelius N. Opris, Peoria, IL (US);
Maarten Verkiel, Metamora, IL (US);
James R. Weber, Lacon, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
A method of operating an internal combustion engine, including at least one cylinder and a piston slidable in the cylinder, may include supplying a mixture of pressurized air and recirculated exhaust gas from an intake manifold to an air intake port of a combustion chamber in the cylinder, selectively operating an air intake valve to open the air intake port to allow pressurized air to flow between the combustion chamber and the intake manifold substantially during a majority portion of a compression stroke of the piston, and operably controlling a fuel supply system to inject fuel into the combustion chamber after the intake valve is closed.