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:
May. 13, 2008
Filed:
Dec. 13, 2004
Budhadeb Mahakul, Naperville, IL (US);
Kenneth M. Sinko, Oak Park, IL (US);
Rafiqul Islam, Naperville, IL (US);
Chih L. Liu, Naperville, IL (US);
Frank M. Graczyk, Darien, IL (US);
Brent J. Valesano, Des Plaines, IL (US);
Randal K. Albright, Oswego, IL (US);
Budhadeb Mahakul, Naperville, IL (US);
Kenneth M. Sinko, Oak Park, IL (US);
Rafiqul Islam, Naperville, IL (US);
Chih L. Liu, Naperville, IL (US);
Frank M. Graczyk, Darien, IL (US);
Brent J. Valesano, Des Plaines, IL (US);
Randal K. Albright, Oswego, IL (US);
Electro-Motive Diesel, Inc., LaGrange, IL (US);
Abstract
An optimized two-stroke internal combustion diesel engine, suitable for locomotive applications, has been developed to meet the EPA locomotive Tier 2 emission standards. To achieve a low emission target below the EPA Tier 2 standards for NO(5.5 g/bhp-hr) and particulates (0.2 g/bhp-hr), several innovative changes have been made to the engine. These changes include: a new piston bowl geometry; low oil consumption piston rings; optimized surface finish cylinder liner; optimized fuel injection camlobe; modified fuel injector nozzle; new efficient aftercooler; optimized oil separator; and optimized turbocharger.