Gregory A Marsh

US Patent:

6604515, Aug 12, 2003

Filed:

Jan 16, 2002

Appl. No.:

10/050288

Inventors:

Gregory A. Marsh - Erie PA
Brian L. Walter - Erie PA
Peter L. Valentine - Erie PA
Mahesh C. Aggarwal - Erie PA
Vinh K. Do - Erie PA

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02B 3300

US Classification:

123563, 60599, 123 4131, 123 4133, 123 4144

Abstract:

A cooling apparatus ( ) and method for a turbocharged internal combustion engine ( ). The combustion air ( ) exiting a turbocharger ( ) is passed over an air-to-water intercooler ( ) then over an air-to-air intercooler ( ) for heat exchange with liquid coolant and with ambient air ( ) respectively. During periods of low ambient air temperature, the combustion air may be directed through a bypass duct ( ) around the air-to-air intercooler, and further, may be heated by the coolant in the air-to-water intercooler. A multi-speed fan ( ) and/or shutters ( ) may be used to control the flow of ambient air across the air-to-air intercooler. A cooling duct ( ) provides a flow of ambient air to the fan motor ( ) during periods of operation when the flow of ambient air over the air-to-air heat exchanger is restricted by the shutters. Coolant exiting a subcooler ( ) has the lowest temperature in the system and is directed to a lube oil cooler ( ) for engine lubricant cooling.

US Patent:

6647934, Nov 18, 2003

Filed:

Oct 1, 2001

Appl. No.:

09/968648

Inventors:

Gregory Alan Marsh - Erie PA
Peter Loring Valentine - Erie PA

Assignee:

General Electric Company - Erie PA

International Classification:

F01B 1108

US Classification:

123 4133, 123563, 13762541, 13762546, 60599

Abstract:

An enhanced split cooling system and method for a turbocharged internal combustion engine including a liquid cooled turbocharger and an engine liquid coolant jacket , the system comprising a coolant pump for pumping coolant from a coolant storage tank in heat exchange relationship with the engine jacket and turbocharger ; an oil cooler having coolant input and output lines; a valve assembly including a multi-port rotary valve actuated by a single actuator; a first coolant output line connected for conveying coolant from the engine to the valve assembly ; a radiator connected via a second coolant line for receiving coolant from the valve assembly and having a coolant outflow line to return coolant to the coolant tank ; an intercooler operatively associated with the turbocharger for passing the coolant in hear exchange relationship with compressed air in the turbocharger ; a lube oil subcooler coupled by a third coolant flow line to receive coolant from the radiator and having a coolant outflow line selectively couplable through the valve assembly to the oil cooler and the coolant tank ; an intercooler subcooler coupled by a fourth coolant flow line to receive coolant from the oil subcooler and having a coolant outflow line selectively couplable through the valve assembly to the coolant tank and the intercooler ; and the valve assembly being independently operable for selectively directing coolant flow through the radiator and subcoolers and the oil cooler and intercooler as a function of engine operating temperature.

US Patent:

7367291, May 6, 2008

Filed:

Jul 22, 2005

Appl. No.:

11/187370

Inventors:

Gregory Alan Marsh - Erie PA, US
Ajith Kuttannair Kumar - Erie PA, US

Assignee:

General Electric Co. - Schenectady NY

International Classification:

F01P 7/17
F02M 35/10

US Classification:

123 4108, 123 4131, 12318421

Abstract:

In a railroad locomotive for operation in low ambient temperature conditions with the locomotive having an engine which includes a cooling system using a coolant liquid, a coolant liquid containment system is provided and includes a containment tank, an inlet port in fluid flow communication with an outlet from the engine cooling system and with the interior of the containment tank, an inlet valve for controlling the flow of coolant liquid through the inlet port, an outlet inlet port in fluid flow communication with the interior of the tank for discharge of the coolant liquid from the containment tank, an outlet valve for controlling the flow of coolant liquid from the containment tank, a sensor for monitoring a parameter indicative of the temperature of coolant liquid in the engine cooling system and generating a signal indicative of the temperature of the coolant liquid and a control device for receiving information indicative of the temperature of the coolant liquid and in communication with the inlet valve for controlling the operation of the inlet valve and the flow of the cooling liquid into the tank, when the temperature of the coolant liquid falls below a predetermined level.

US Patent:

7533636, May 19, 2009

Filed:

Apr 30, 2007

Appl. No.:

11/742541

Inventors:

Gregory A. Marsh - Erie PA, US
Mahesh C. Aggarwal - Erie PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01P 11/08

US Classification:

123 4133, 123196 AB

Abstract:

A system, method, and computer readable media for controlling cooling in a diesel fueled power generation unit. The system includes a first cooling circuit configurable in a first mode for directing an oil coolant portion into main oil cooler and an intercooler coolant portion into an intercooler and configurable in a second mode for limiting the oil coolant portion provided to the main oil cooler. The system also includes a supplementary oil cooler for cooling a portion of the lubrication oil and a supplementary coolant source for providing a second coolant flow to the supplementary oil cooler. The system also includes a second cooling circuit in communication with the supplementary oil cooler configurable in the first mode for limiting the portion of the lubrication oil provided to the supplementary oil cooler and configurable in the second mode for directing the portion of the lubrication oil to the supplementary air oil cooler.

US Patent:

7614232, Nov 10, 2009

Filed:

Apr 9, 2005

Appl. No.:

11/102079

Inventors:

Kendall Roger Swenson - Erie PA, US
Gregory Alan Marsh - Erie PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02B 33/44
F02B 29/04
F02B 37/16
F02B 37/00
F02B 37/12

US Classification:

60611, 60599, 123563

Abstract:

A system and method for maintaining an airflow path to a turbocharger system on a locomotive operating at high altitude and in a low ambient temperature environment, is provided and includes generating an ambient air stream flow into the turbocharger system to create a compressed air stream flow having a compressed air stream temperature, processing the compressed air stream to create an intercooler air stream having an intercooler air stream temperature, directing at least a portion of at least one of the compressed air stream and the intercooler air stream toward a controllable re-circulation device, operating the controllable re-circulation device to combine the at least a portion of at least one of the compressed air stream and the intercooler air stream with at least one of the compressed air stream flow and the ambient air stream.

US Patent:

7721855, May 25, 2010

Filed:

Jun 20, 2005

Appl. No.:

11/156400

Inventors:

Gregory Alan Marsh - Erie PA, US
Theodore Clark Brown - Ripley NY, US
Ajith Kuttannair Kumar - Erie PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F16D 65/847
F16D 65/12
B61D 27/00

US Classification:

188264AA, 188264 R, 188264 F, 188 3 R, 454 83

Abstract:

In a locomotive having a dynamic braking capability, a method for maintaining an airflow path to a resistive grid disposed within a resistive grid enclosure having an enclosure inlet and an enclosure outlet is provided, wherein the method includes generating an inlet airflow into the enclosure inlet, creating a heated inlet airflow by associating the inlet airflow with the resistive grid such that the inlet airflow absorbs heat generated by the resistive grid, directing the heated inlet airflow toward the enclosure outlet to generate a heated outlet airflow, redirecting at least a portion of the heated outlet airflow to be thermally associated with a structural portion of the enclosure inlet such that the temperature of the structural portion of the enclosure inlet is increased above a predetermined temperature to reduce blockage of the enclosure inlet by snow and recirculating the redirected heated outlet airflow with ambient air being drawn into the resistive grid enclosure.

US Patent:

7757678, Jul 20, 2010

Filed:

May 7, 2008

Appl. No.:

12/116773

Inventors:

Gregory Alan Marsh - Erie PA, US
Mahesh Chand Aggarwal - Erie PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02B 47/08
F02B 47/00

US Classification:

12356812

Abstract:

A method of operating an engine having exhaust gas recirculation from an exhaust manifold of the engine to an intake manifold of the engine, the engine in a locomotive or other vehicle car body, the engine further having an intake system turbocharger with an air-cooled intercooler, the method including cooling the exhaust gas recirculation via a first airflow generated by car body motion, cooling compressed engine induction air in the air-cooled intercooler via a second airflow, and cooling the exhaust gas recirculation via the second airflow.

US Patent:

7798134, Sep 21, 2010

Filed:

May 7, 2008

Appl. No.:

12/116775

Inventors:

Gregory Alan Marsh - Erie PA, US
Mahesh Chand Aggarwal - Erie PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02B 47/08
F02B 47/10

US Classification:

12356812

Abstract:

A system, kit, and service method for exhaust gas recirculation cooling are described. In one example, a removable cooling system for an engine, the engine in a vehicle car body, the system comprising: a removable package including a first exhaust gas recirculation cooler, a second exhaust gas recirculation cooler, and a third exhaust gas recirculation cooler, the first, second, and third coolers coupled together in series, where the removable package is located at a top of the vehicle car body and where the removable package is removably coupled to the vehicle as a unit.