Brent M Hunold

US Patent:

20080041333, Feb 21, 2008

Filed:

Aug 18, 2006

Appl. No.:

11/505803

Inventors:

Mark Wayne Jarrett - Washington IL, US
Brent Michael Hunold - Apex NC, US

International Classification:

F02F 1/00
F02F 3/00
F16J 1/04
F02F 3/26

US Classification:

123254, 92208, 1231936, 123279

Abstract:

A piston for an internal combustion engine has an upper crown with a top and a bottom surface, and a lower crown with a top and a bottom surface. The upper crown and the lower crown are fixedly attached to each other using welds, with the bottom surface of the upper crown and the top surface of the lower crown forming a mating surface. The piston also has at least one centrally located air gap formed on the mating surface. The air gap is sealed to prevent substantial airflow into or out of the air gap.

US Patent:

20090121542, May 14, 2009

Filed:

Nov 13, 2007

Appl. No.:

11/938869

Inventors:

Brent M. Hunold - Holly Springs NC, US
Haim Bear - Apex NC, US
Sage F. Smith - Apex NC, US
Christopher E. Daniels - Fuquay-Varina NC, US
Christopher J. Neiger - Apex NC, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B62D 55/24

US Classification:

305165, 305185, 180 921

Abstract:

A track for a machine. The track may include a plurality of cavities penetrating a sidewall of the track. The track may include an inner surface, an outer surface, a middle region and two sidewalls. The plurality of cavities may penetrate the sidewall and extend through the middle region of the track to the opposite sidewall.

US Patent:

20090164065, Jun 25, 2009

Filed:

Jul 8, 2008

Appl. No.:

12/169092

Inventors:

Christopher E. Daniels - Fuquay-Varina NC, US
Brent M. Hunold - Holly Springs NC, US
Christopher J. Neiger - Apex NC, US
Sage F. Smith - Apex NC, US
Haim Bear - Apex NC, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B62D 11/00

US Classification:

701 41

Abstract:

A tracked machine may include a first track, a second track, and a drive system configured to move the first track in a first direction and move the second track in a second direction. The tracked machine includes an operator input system and an electronic control module in electrical communication with the operator input system and the drive system to receive an input signal from the operator input system indicating a first movement direction and a first speed for the first track and a second movement direction and a second speed for the second track. The electronic control module compares the first movement direction with the second movement direction and generates a drive signal to actuate the first and second tracks to move in the same direction when the first movement direction is different than the second movement direction.

US Patent:

20210123390, Apr 29, 2021

Filed:

Oct 25, 2019

Appl. No.:

16/663790

Inventors:

- Moline IL, US
Justin E. Fritz - Denver IA, US
Patrick Keller - Platteville WI, US
Brent M. Hunold - Asbury IA, US

International Classification:

F02D 41/08
F02D 41/14
F01N 11/00

Abstract:

A work vehicle may include an internal combustion engine, aftertreatment system, and at least one controller. The controller is configured to use a temperature of the aftertreatment system to determine a hydrocarbon level of the aftertreatment system, and set an idle speed of the engine to high idle if the hydrocarbon level is above a hydrocarbon ceiling, to ultra-low idle if the hydrocarbon level is below a hydrocarbon floor, and to low idle if the hydrocarbon level is between the hydrocarbon floor and the hydrocarbon ceiling.

US Patent:

20160208670, Jul 21, 2016

Filed:

Jan 21, 2015

Appl. No.:

14/601831

Inventors:

- Moline IL, US
Brent M. Hunold - Dubuque IA, US
Paul A. Wantschik - Platteville WI, US
Mark D. Anderson - Dubuque IA, US

International Classification:

F01N 11/00
F01P 5/10
F01P 3/20
F01N 3/04
F01N 3/20

Abstract:

A DEF injector cooling system may include a mechanical pump, an electric pump, and a controller. The mechanical pump may be rotatably coupled to an engine so as to be driven by the engine. The mechanical pump may be fluidly connected to the engine, a DEF injector, and a heat exchanger, and configured to pump coolant through these components. The electric pump may be fluidly connected to the DEF injector and configured to pump coolant through it. The controller may be configured to receive an ambient temperature signal indicative of an ambient temperature and power the electric pump after a shutdown of the engine for a period of time, the duration of the period of time based on the ambient temperature signal.