Vincent F Dunsworth

US Patent:

6341596, Jan 29, 2002

Filed:

Apr 28, 2000

Appl. No.:

09/560592

Inventors:

Eric R. Dillen - Erie PA
Shawn M. Gallagher - Erie PA
Vincent F. Dunsworth - Edinboro PA
Joseph T. Orinko - Erie PA

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02M 3704

US Classification:

123500, 123357

Abstract:

An apparatus for reducing visible smoke in a railroad locomotive during throttle position changes. For key throttle position changes, the present invention introduces a temporary advance in injection timing and a delay in the application of additional current to the traction motors, thereby delaying the generation of additional horsepower requested by the new throttle position. These strategies of timing advance and load application delay are used together or separately to minimize transient visible smoke.

US Patent:

6405705, Jun 18, 2002

Filed:

May 19, 2000

Appl. No.:

09/575337

Inventors:

Vincent F. Dunsworth - Edinboro PA
Eric R. Dillen - Erie PA
Shawn M. Gallagher - Erie PA

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02D 1702

US Classification:

123305, 123481

Abstract:

A diesel engine, having a plurality of individually controllable fuel injected cylinders, is operated in a skip firing mode to reduce smoke emissions during low power operation. The system senses certain identified engine operating parameters and when these parameters exceed predetermined thresholds for a predetermined time, then the skip firing is implemented. In another embodiment, it is possible to implement several different skip firing patterns dependent upon engine performance. Upon implementation of skip firing, the engine timing angle is reset by a fixed angle and a multiplication factor is included in the speed loop integrator to ensure that the appropriate fuel volume value is injected into each cylinder immediately upon initiation of skip firing. Skip firing is then disabled when another set of predetermined conditions is satisfied.

US Patent:

6429540, Aug 6, 2002

Filed:

Jun 13, 2000

Appl. No.:

09/593254

Inventors:

Vincent F. Dunsworth - Edinboro PA
Brian E. Celidonia - Erie PA
Bret D. Worden - Union City PA

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02D 4114

US Classification:

290 40A, 123352

Abstract:

An apparatus and method for limiting diesel engine overspeed conditions (and thereby prevent engine damage) caused by the ingestion of lubricating oil from the turbocharger, or other source, into the diesel engine cylinders. In response to the development of an overspeed condition, the dynamic brake grids are coupled to the output of the main alternator to absorb the excess energy caused by the overspeed condition. Alternatively, non-combustible gases can be injected into the combustion system to limit the overspeed condition.

US Patent:

6493627, Dec 10, 2002

Filed:

Sep 25, 2000

Appl. No.:

09/669999

Inventors:

Shawn M. Gallagher - Erie PA
Eric R. Dillen - Erie PA
Vincent F. Dunsworth - Edinboro PA

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02M 5920

US Classification:

701104, 123480

Abstract:

A diesel engine including a technique for limiting the fuel value injected into each cylinder so that overfueling does not occur. A fuel value limit is calculated based on ambient temperature and pressure, fuel temperature, fuel heating value and the conditions of the fuel pump and injector. This fuel value limit is compared to the actual fuel value commanded and if the limit is greater than the fuel value commanded, then the engine operation is derated. Alternatively, if the fuel value is below the calculated limit, then the engine can accept the fuel value without affecting its operation.

US Patent:

6552439, Apr 22, 2003

Filed:

May 24, 2002

Appl. No.:

10/154581

Inventors:

Vincent F. Dunsworth - Edinboro PA
Brian E. Celidonia - Erie PA
Bret D. Worden - Union City PA

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02D 4114

US Classification:

290 41, 290 40 A, 123352

Abstract:

An apparatus and method for limiting diesel engine overspeed conditions (and thereby prevent engine damage) caused by the ingestion of lubricating oil from the turbocharger, or other source, into the diesel engine cylinders. In response to the development of an overspeed condition, the dynamic brake grids are coupled to the output of the main alternator to absorb the excess energy caused by the overspeed condition. Alternatively, non-combustible gases can be injected into the combustion system to limit the overspeed condition.

US Patent:

6823835, Nov 30, 2004

Filed:

Jun 10, 2002

Appl. No.:

10/166434

Inventors:

Vincent F. Dunsworth - Edinboro PA
Eric Richard Dillen - Erie PA
Shawn Michael Gallagher - Erie PA

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02D 1702

US Classification:

123305, 123481

Abstract:

A diesel engine, having a plurality of individually controllable fuel injected cylinders, is operated in a skip firing mode to reduce smoke emissions during low power operation. The system senses certain identified engine operating parameters and when these parameters exceed predetermined thresholds for a predetermined time, then the skip firing is implemented. In another embodiment, it is possible to implement several different skip firing patterns dependent upon engine performance. Upon implementation of skip firing, the engine timing angle is reset by a fixed angle and a multiplication factor is included in the speed loop integrator to ensure that the appropriate fuel volume value is injected into each cylinder immediately upon initiation of skip firing. Skip firing is then disabled when another set of predetermined conditions is satisfied.

US Patent:

6889663, May 10, 2005

Filed:

Jul 8, 2003

Appl. No.:

10/615439

Inventors:

Vincent F. Dunsworth - Edinboro PA, US
Shawn M. Gallagher - Erie PA, US
James Robert Mischler - Girard PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02M051/00

US Classification:

123491, 123480, 123501, 12317911

Abstract:

A method for controlling start of a compression ignition engine having a plurality of cylinders without a cam sensor is provided. Each cylinder includes a respective piston reciprocally movable between respective top and bottom positions along a cylinder longitudinal axis. The method comprises providing a respective fuel delivery assembly for each cylinder. In one embodiment the method further comprises retrieving from memory a set of fuel delivery assembly firing rules and then processing the firing rules so that a firing signal is delivered to each fuel delivery assembly on every crank revolution during a cranking mode of operation. The fuel delivery assembly is arranged to be responsive to any firing signal received during an injection window leading to the top position along the longitudinal axis so as to supply fuel to each cylinder during that injection window. The fuel delivery assembly is further arranged to be insensitive to any firing signal received during an exhaust stroke leading to the top position along said longitudinal axis so that no fuel is delivered to each cylinder during that exhaust stroke.

US Patent:

6892701, May 17, 2005

Filed:

Jan 28, 2003

Appl. No.:

10/352487

Inventors:

Eric R. Dillen - Erie PA, US
Shawn M. Gallagher - Erie PA, US
Vincent F. Dunsworth - Edinboro PA, US
Joseph T. Orinko - Erie PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02D031/00
F02P005/00
F02M037/04

US Classification:

123357, 123500, 12340646, 123352

Abstract:

A method and apparatus for reducing the smoke emissions of a railroad locomotive during throttle notch changes. For certain throttle notch increases the present invention advances the engine timing angle and controls application of the load at the new throttle notch position, according to certain predetermined parameters. These strategies, when used together or separately, minimize visible smoke during transient operation.