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. 15, 2005
Filed:
Dec. 03, 2003
Budhadeb Mahakul, Naperville, IL (US);
Verne E. Rezabek, La Grange Park, IL (US);
Rafiqul Islam, Naperville, IL (US);
Frank M. Graczyk, Darien, IL (US);
Chih L. Liu, Naperville, IL (US);
Budhadeb Mahakul, Naperville, IL (US);
Verne E. Rezabek, La Grange Park, IL (US);
Rafiqul Islam, Naperville, IL (US);
Frank M. Graczyk, Darien, IL (US);
Chih L. Liu, Naperville, IL (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Engine reconfiguration kits are developed for NOx emission reduction in Electro-Motive Division of General Motors Corporation model 645 diesel engines. The kits feature improved unit fuel injectors providing better fuel atomization with retarded injection timing and other improvements. Included new higher efficiency four pass counterflow aftercoolers provide reduced airbox inlet air temperatures. New connector pipes for the counterflow aftercoolers may also be included. Optional higher compression ratio pistons are available for increased fuel efficiency in some engine types. The kits reduce NOx emissions without increasing smoke, CO or particulate emissions or reducing performance.