Bradley E Bartley

7451741, Nov 18, 2008

Oct 31, 2007

11/981109

Bradley E. Bartley - Pekin IL, US
Scott F. Shafer - Morton IL, US
Steven Y. Tian - Bloomington IL, US
Timur T. Trubnikov - Peoria IL, US
Christopher R. Jones - Peoria IL, US
Haithem Algousi - Peoria IL, US

Caterpillar Inc. - Peoria IL

F02M 37/04
F02M 69/04
F04B 39/00

123445, 123506, 417454

The pump described herein provides a potentially lower cost alternative to conventional high-pressure pumps by providing a head, a plunger, and a control valve assembly. The head defines a valve bore having a first diameter, a plunger bore having a second diameter, and an intermediate chamber having a third diameter. The plunger is configured to reciprocate within the plunger bore. The plunger, the plunger bore, and the intermediate chamber at least partially define a pumping chamber. The control valve assembly is coupled to the head and includes an actuator moveable in response to an input signal and a valve element coupled to the actuator. The valve element is received within the valve bore and moveable between an open and a closed position. The valve element includes a body having a fourth diameter and a valve head having a fifth diameter. The first diameter is no larger than the second diameter.

7578283, Aug 25, 2009

Jun 30, 2008

12/216117

Bradley E. Bartley - Pekin IL, US

Caterpillar Inc. - Peoria IL

F02M 37/04

123446, 123510

An assembly is disclosed having a high pressure fuel source, a low pressure fuel source, and a housing. The assembly also has a piston disposed within the housing and dividing the housing into a first chamber, a second chamber, a third chamber, and a fourth chamber. The first and second chambers are fluidly connected to the high pressure fuel source. The third chamber is selectively fluidly connected to the high pressure fuel source and the low pressure fuel source, and the fourth chamber is fluidly connected to the low pressure fuel source. The piston is movable from a first position when the third chamber is selectively connected to the high pressure fuel source. The piston is movable to a second position when the third chamber is selectively connected to the low pressure fuel source.

7748359, Jul 6, 2010

Jun 28, 2007

11/819645

Bradley E. Bartley - Pekin IL, US
Alan R. Stockner - Metamora IL, US
David C. Mack - Peoria IL, US

Caterpillar Inc. - Peoria IL

F01L 1/14

123 9048, 123 9052

In one aspect, the present disclosure is directed to a tappet assembly for a machine. The assembly may include a tappet body, a pin fixedly mounted in the tappet body, and a substantially cylindrical roller mounted about the pin. The roller may have a substantially cylindrical outer surface with a circumferential dimension and a width dimension, the width dimension being defined by two lateral edges. The roller may be configured to provide rolling contact between the outer surface of the roller and a cam lobe. The outer surface of the roller may be crowned such that at maximum operational loading conditions of the machine a footprint of contact pressure from the cam lobe is spread substantially the full width of outer cylindrical surface of the roller.

7980224, Jul 19, 2011

Feb 3, 2009

12/322479

Stephen R. Lewis - Chillicothe IL, US
Bradley E. Bartley - Pekin IL, US
Avinash R. Manubolu - Edwards IL, US
Shriprasad G. Lakhapati - Peoria IL, US
Dianqi Fang - Dunlap IL, US
Michael Gerstner - Peoria IL, US
Christopher D. Hanson - Washington IL, US
Jeffrey M. Mullinix - Bloomington IL, US

Caterpillar Inc. - Peoria IL

F02M 37/04
F02M 47/02

123447, 123510, 123467, 239 96

A fuel system includes a plurality of fuel injectors fluidly connected to a common rail. Each of the fuel injectors has at least one body component and includes an intensifier control valve for controlling movement of an intensifier piston, a needle control valve for controlling movement of a needle valve member, and exactly one electrical actuator coupled with the intensifier control valve and the needle control valve via a coupling linkage. The intensifier control valve and the needle control valve each include a valve member that is movable with respect to a valve seat. The electrical actuator includes an intermediate position during which the valve member of one of the intensifier control valve and the needle control valve is in contact with the respective valve seat, and the valve member of the other of the intensifier control valve and the needle control valve is out of contact with the respective valve seat.

20090114190, May 7, 2009

Nov 1, 2007

11/982013

Scott Shafer - Muncie IN, US
Bradley E. Bartley - Pekin IL, US

Caterpillar Inc. - Peoria IL

F02M 37/04
F04B 15/00
F02M 59/02

123446, 417437, 13756501, 123495

To reduce mixing of fluids within a high pressure pump, a pump is provided that comprises a housing, a piston, an annulus, and a first seal. The housing includes an inlet for a first fluid, an inlet for a second fluid, and a piston bore fluidly coupled to the inlet for the first fluid. The piston is moveable within the piston bore and has a first end exposed to the first fluid and a second end exposed to the second fluid. The annulus is defined within the piston bore and is configured to be fluidly coupled to a drain circuit having a pressure less than the pressure of the first fluid. The first seal is coupled to the housing and is located outside of the piston bore. The first seal engages the piston to create a seal that substantially prevents the second fluid from entering the piston bore.

6067962, May 30, 2000

Nov 10, 1998

9/189108

Bradley E. Bartley - Manito IL
James R. Blass - Bloomington IL
Dennis H. Gibson - Chillicothe IL

Caterpillar Inc. - Peoria IL

F02M 3704

123446

An engine includes a high pressure hydraulic system having a high pressure pump and at least one hydraulically-actuated device attached to an engine housing. A low pressure engine lubricating system is attached to the engine housing and includes a circulation conduit fluidly connected to an outlet from the high pressure pump.

62342703, May 22, 2001

Jan 21, 1999

9/235359

Bradley E. Bartley - Manito IL
James R. Blass - Bloomington IL
Dennis H. Gibson - Chillicothe IL

Caterpillar Inc. - Peoria IL

F02M 700

180417

A vehicle comprises a plurality of wheels attached to a vehicle housing. Also attached to the vehicle housing is a power steering system, including a fluid flow circuit, which is operably coupled to a number of the wheels. An internal combustion engine attached to the vehicle housing is connected to a hydraulically actuated system that includes a high pressure pump. An outlet of the high pressure pump is in fluid communication with the fluid flow circuit.

61488054, Nov 21, 2000

Dec 15, 1998

9/212187

Bradley E. Bartley - Manito IL
James R. Blass - Bloomington IL
Dennis H. Gibson - Chillicothe IL

Caterpillar Inc. - Peoria IL

F02M 2506
F02M 3704

12356828

An engine system comprises a hydraulically actuated fuel injection system and an EGR valve circuit connected via a fluid flow passage that provides hydraulic fluid to both the fuel injection system and to the EGR valve circuit. The hydraulically actuated system includes a high pressure pump. The fluid control passage is in fluid communication with an outlet from the high pressure pump.