US Patent 7370627 Optimized low emission two-stroke internal combustion diesel engine

Patent 7370627 was granted and assigned to Electro-Motive Diesel on May, 2008 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Electro-Motive Diesel

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

73706270

Patent Inventor Names

Brent J. Valesano0

Kenneth M. Sinko0

Rafiqul Islam0

Randal K. Albright0

Budhadeb Mahakul0

Chih L. Liu0

Frank M. Graczyk0

Date of Patent

May 13, 2008

Patent Application Number

110106820

Date Filed

December 13, 2004

Patent Primary Examiner

‌

Hai Huynh

Patent 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 NOx (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.

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