Brent J Valesano

US Patent:

7628344, Dec 8, 2009

Filed:

Sep 27, 2005

Appl. No.:

11/236237

Inventors:

Budhadeb Mahakul - Naperville IL, US
Brent J. Valesano - Des Plaines IL, US
Gary L. Cowden - Lowell MI, US
Mike Smith - Comstock Park MI, US

Assignee:

Electro-Motive Diesel, Inc. - LaGrange IL

International Classification:

F02M 61/20

US Classification:

2395339, 2395332, 239 88, 239 90, 267166, 267167, 123508

Abstract:

A fuel injector assembly for an emissions-based EMD 710 locomotive dieselengine. The fuel injector assembly includes a needle slidably positioned within a bore of a valve body of the injector assembly, where fuel pressure introduced into a bore chamber causes the needle to open a spray tip. A spring mounted within the bore forces the needle to close the spray tip when the fuel is not being applied. The spring is a dead coil spring including inactive coils where at least portions of the coils at both ends of the spring are in intimate contact with each other so as to reduce spring wear during operation of the assembly. Because the dead coil spring has reduced wear, the VOP set point of the fuel injector assembly can be reduced, which reduces NOx emissions.

US Patent:

7370627, May 13, 2008

Filed:

Dec 13, 2004

Appl. No.:

11/010682

Inventors:

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

Assignee:

Electro-Motive Diesel, Inc. - LaGrange IL

International Classification:

F02F 3/26

US Classification:

123276, 1231936

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.

US Patent:

20130047962, Feb 28, 2013

Filed:

Aug 29, 2012

Appl. No.:

13/597818

Inventors:

Robert T. MacVicar - Downers Grove IL, US
Brent Valesano - Des Plaines IL, US
Frank J. Kalemba - Chicago IL, US

International Classification:

F02M 69/46

US Classification:

123452

Abstract:

A fuel quill passageway assembly for an engine is disclosed. The engine includes a head pot; a cylinder head having an outer wall situated adjacent to the head pot, an inner wall, and a water jacket situated between the outer wall and the inner wall; and a fuel injector situated adjacent to the inner wall. The assembly may include a first sleeve extending through an aperture in the head pot toward an aperture in the outer wall of the cylinder head. The assembly may also include a second sleeve extending from the aperture in the outer wall of the cylinder head, through the water jacket, to an aperture in the inner wall of the cylinder head. Additionally, the assembly may include a seal joining the second sleeve to the first sleeve.