John Parker Timmons

US Patent:

6842689, Jan 11, 2005

Filed:

Apr 29, 2003

Appl. No.:

10/424846

Inventors:

David J. Andres - Washington IL, US
Craig W. Riediger - Cologny, CH
Donald E. Wilson - Bad Abbach, DE
John P. Timmons - Chillicothe IL, US
Timothy A. Lorentz - Morton IL, US

Assignee:

Caterpillar Inc - Peoria IL

International Classification:

G06G 770

US Classification:

701110, 123350, 731173, 73116, 340439, 701102, 701104, 701114, 701115

Abstract:

A method and system may be provided to perform a process for controlling power provided by an engine in a machine. In an embodiment of the present invention, a process for controlling power provided by an engine operating in a machine is provided. The process may include determining a first power value reflecting a predetermined first power to be provided by the engine to a component operating in the machine and determining, during machine operations, at least one of a parasitic load power value and an intermittent power load value. A second power value may then be determined that reflects a second power provided by the engine based on the parasitic power value, the intermittent power value, and the net power value. The second power value is adjusted such that the engine substantially provides the predetermined net power to the component.

US Patent:

6843221, Jan 18, 2005

Filed:

Jul 28, 2003

Appl. No.:

10/628732

Inventors:

Brian G. McGee - Chillicothe IL, US
John P. Timmons - Chillicothe IL, US
Mark E. Rettig - Peoria IL, US

Assignee:

Caterpillar - Peoria IL

International Classification:

F02B 300

US Classification:

123299, 123300

Abstract:

Methods for operating a fuel injection device. A single fuel shot is delivered when rack is less than a first predetermined threshold. A first fuel shot and a second fuel shot is delivered when rack is above the first predetermined threshold and below a second predetermined threshold. A single fuel shot is delivered when rack is above a third predetermined threshold.

US Patent:

7051699, May 30, 2006

Filed:

Jun 24, 2003

Appl. No.:

10/602746

Inventors:

Brian G. McGee - Chillicothe IL, US
John P. Timmons - Chillicothe IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F02B 3/00

US Classification:

123295, 123299

Abstract:

Methods for operating a fuel injection system of an engine. A first number of the fuel injectors is operated in a first mode during a first engine cycle. The first mode has a first set of fuel delivery characteristics, including at least one fuel shot per fuel injector per engine cycle. A second number of the fuel injectors is operated in a second mode during the first engine cycle. The second mode has a second set of fuel delivery characteristics, including at least one fuel shot per fuel injector per engine cycle.

US Patent:

7107764, Sep 19, 2006

Filed:

Jun 15, 2005

Appl. No.:

11/152069

Inventors:

Cornelius N. Opris - Peoria IL, US
John P. Timmons - Chillicothe IL, US
Mari Lou Balmer-Millar - Chillicothe IL, US
Cho Y. Liang - Henderson NV, US
Anil Raina - Chillicothe IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F01N 3/00

US Classification:

60297, 60274, 60278, 60280, 60286, 60303, 60311

Abstract:

An exhaust treatment system of a power source includes a filter having a housing with an inlet and an outlet, and a regeneration device disposed outside of the housing of the filter. The regeneration device is fluidly connected to the inlet of the housing. The exhaust treatment system also includes an exhaust line configured to assist in directing a portion of a filtered flow of exhaust from the filter outlet to the power source.

US Patent:

8096124, Jan 17, 2012

Filed:

Sep 30, 2008

Appl. No.:

12/285145

Inventors:

David Andrew Pierpont - Dunlap IL, US
John Parker Timmons - Chillicothe IL, US
Jonathan P. Kilkenny - Peoria IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F02B 33/44

US Classification:

606052, 60612

Abstract:

An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, and at least one turbocharger driven by exhaust from the first exhaust manifold. The exhaust system may also have a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and at least two turbochargers driven by exhaust from the second exhaust manifold. The exhaust manifold may further have an exhaust gas recirculation circuit in fluid communication with only the first exhaust manifold. A number of turbochargers that receives exhaust from the first exhaust manifold may be less than a number of turbochargers that receives exhaust from the second exhaust manifold.

US Patent:

8161747, Apr 24, 2012

Filed:

Jul 31, 2008

Appl. No.:

12/222011

Inventors:

David Andrew Pierpont - Dunlap IL, US
John Parker Timmons - Chillicothe IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F02B 33/44
F02D 23/00

US Classification:

606052, 60602, 60612

Abstract:

An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and an exhaust gas recirculation circuit in fluid communication with only the first exhaust manifold. The exhaust system may also have a first turbocharger having dual volutes configured to simultaneously receive exhaust from the first exhaust manifold and the second exhaust manifold, and a second turbocharger configured to receive exhaust from the first turbocharger and compress air directed into the engine.

US Patent:

8176737, May 15, 2012

Filed:

Jul 31, 2008

Appl. No.:

12/222010

Inventors:

David Andrew Pierpont - Dunlap IL, US
John Parker Timmons - Chillicothe IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F02B 37/16

US Classification:

606052, 60612, 13762547, 1376255, 137872

Abstract:

An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold, a second exhaust manifold, and an exhaust gas recirculation circuit. The exhaust system may also have a fixed geometry turbocharger with a first volute configured to receive exhaust from the first exhaust manifold, and a second volute configured to receive exhaust from the second exhaust manifold. The exhaust system may also have a recirculation control valve in fluid communication with the first exhaust manifold, the second exhaust manifold and the exhaust gas recirculation circuit. The recirculation control valve may have a valve element movable to selectively adjust a flow of exhaust in the exhaust gas recirculation circuit, the first volute, and the second volute.

US Patent:

8297053, Oct 30, 2012

Filed:

Jul 31, 2008

Appl. No.:

12/222008

Inventors:

John R. Gladden - Lafayette IN, US
David Andrew Pierpont - Dunlap IL, US
John P. Timmons - Chillicothe IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F02B 33/44

US Classification:

606052, 60612

Abstract:

An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, and a first turbocharger driven by exhaust from the first exhaust manifold. The exhaust system may also have a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and a second turbocharger driven by exhaust from the second exhaust manifold and having a different flow capacity than the first turbocharger. The exhaust system may further have an exhaust gas recirculation circuit in fluid communication with the second exhaust manifold.