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:
Oct. 26, 2010
Filed:
Aug. 05, 2004
Ramesh B. Poola, Naperville, IL (US);
Paul Gottemoller, Palos Park, IL (US);
Michael B. Goetzke, Orland Park, IL (US);
Ramesh B. Poola, Naperville, IL (US);
Paul Gottemoller, Palos Park, IL (US);
Michael B. Goetzke, Orland Park, IL (US);
Electro-Motive Diesel, Inc., LaGrange, IL (US);
Abstract
A diesel engine intake cam profile creates two intake valve events separated by a short dwell period each engine cycle. A relatively low valve lift during an engine exhaust event allows a portion of the exhaust gas to flow into an intake manifold and mix with intake air. The intake valve is then nearly closed for a dwell period until a normal intake valve opening occurs, drawing the mixture of air and exhaust gas back into the combustion chamber for compression and burning, upon closure of the intake valves.