Patents by Inventor Stephan Donald Roozenboom
Stephan Donald Roozenboom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11680548Abstract: A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.Type: GrantFiled: March 7, 2022Date of Patent: June 20, 2023Assignee: Caterpillar Inc.Inventors: Ye Tian, Quinton Marcus Burear, Michael Taylor McKinley, Stephan Donald Roozenboom
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Patent number: 11367320Abstract: A system includes an ECM configured to control at least one subsystem of a machine, a plurality of sensors communicatively coupled to the ECM, the plurality of sensors configured to sense at least one identification device coupled to a fluid filter associated with the subsystem of the machine. A memory stories instructions that, when executed by the ECM, cause the ECM to cause a sensor of the plurality of sensors to sense the at least one identification device, receive a signal from the sensor based on the sensor sensing the at least one identification device, identify a coupling of the fluid filter to the machine based on the signal; and identify at least one physical characteristic of the fluid filter based on a code defined by electromagnetic energy generated by the at least one identification device. The code includes at least one component defining the at least one physical characteristic.Type: GrantFiled: September 24, 2019Date of Patent: June 21, 2022Assignee: Caterpillar Inc.Inventors: Ye Tian, Grant Michael Klobuchar, Brenton William Bush, Stephan Donald Roozenboom
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Publication number: 20220186695Abstract: A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.Type: ApplicationFiled: March 7, 2022Publication date: June 16, 2022Applicant: Caterpillar Inc.Inventors: Ye Tian, Quinton Marcus Burcar, Michael Taylor McKinley, Stephan Donald Roozenboom
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Patent number: 11333048Abstract: An engine valve actuation system includes a hydro-mechanical valve actuation module having a first hydro-mechanical linkage and a second hydro-mechanical linkage, each within a different housing block of a housing. Each of the first hydro-mechanical linkage and the second hydro-mechanical linkage includes a cam-follower piston in contact with a cam of a camshaft, and a valve-actuation piston hydraulically co-acting with the respective cam-follower piston. The hydro-mechanical valve actuation module may include hydro-mechanical linkages for an intake valve, for an exhaust valve, and for engine braking.Type: GrantFiled: December 18, 2020Date of Patent: May 17, 2022Assignee: Caterpillar Inc.Inventors: Stephan Donald Roozenboom, Jeffrey Clark Krieger, Michael Dean Roley
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Patent number: 11268482Abstract: A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.Type: GrantFiled: April 21, 2020Date of Patent: March 8, 2022Assignee: Caterpillar Inc.Inventors: Ye Tian, Quinton Marcus Burcar, Michael Taylor McKinley, Stephan Donald Roozenboom
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Publication number: 20210324821Abstract: A fuel module for pumping and filtration of a fuel in a fuel system includes a flow housing, and each of an electrically powered pump, a first cartridge filter, and a second cartridge filter in sealed, direct engagement with the flow housing. The fuel module is applied in a low pressure fuel circuit feeding fuel to a high pressure fuel circuit for pressurization to an injection pressure. Electronic closed loop control techniques for the pump are also disclosed.Type: ApplicationFiled: April 21, 2020Publication date: October 21, 2021Applicant: Caterpillar Inc.Inventors: Ye Tian, Quinton Marcus Burcar, Michael Taylor McKinley, Stephan Donald Roozenboom
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Publication number: 20210090362Abstract: A system includes an ECM configured to control at least one subsystem of a machine, a plurality of sensors communicatively coupled to the ECM, the plurality of sensors configured to sense at least one identification device coupled to a fluid filter associated with the subsystem of the machine. A memory stories instructions that, when executed by the ECM, cause the ECM to cause a sensor of the plurality of sensors to sense the at least one identification device, receive a signal from the sensor based on the sensor sensing the at least one identification device, identify a coupling of the fluid filter to the machine based on the signal; and identify at least one physical characteristic of the fluid filter based on a code defined by electromagnetic energy generated by the at least one identification device. The code includes at least one component defining the at least one physical characteristic.Type: ApplicationFiled: September 24, 2019Publication date: March 25, 2021Applicant: Caterpillar Inc.Inventors: Ye Tian, Grant Michael Klobuchar, Brenton William Bush, Stephan Donald Roozenboom
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Patent number: 8484947Abstract: A fluid injector for an exhaust treatment system is disclosed. The fluid injector may have a body, a pin member, and a heater. The pin member may be disposed within the body and have a fluid receiving end and a fluid injecting end. The heater may be disposed about the fluid injecting end of the pin member.Type: GrantFiled: November 7, 2007Date of Patent: July 16, 2013Assignee: Caterpillar Inc.Inventors: Roger Leroy Urven, Jr., Stephan Donald Roozenboom, James Richard Weber, Glenn Brian Cox, Stephen Michael Wiley
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Publication number: 20120222419Abstract: A turbocharger for a use with a combustion engine is provided. The turbocharger may have a turbine housing with a first volute, a second volute, and a common outlet. The turbocharger may also have a turbine wheel disposed between the common outlet and the first and second volutes. The turbocharger may further have a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel, a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, and a common actuator configured to move the first and second valves.Type: ApplicationFiled: May 15, 2012Publication date: September 6, 2012Inventors: Craig Phillip Hittle, Jonathan P. Kilkenny, David Andrew Pierpont, Stephan Donald Roozenboom
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Patent number: 8196403Abstract: A turbocharger for a use with a combustion engine is provided. The turbocharger may have a turbine housing with a first volute, a second volute, and a common outlet. The turbocharger may also have a turbine wheel disposed between the common outlet and the first and second volutes. The turbocharger may further have a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel, a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, and a common actuator configured to move the first and second valves.Type: GrantFiled: July 31, 2008Date of Patent: June 12, 2012Assignee: Caterpillar Inc.Inventors: Craig Phillip Hittle, Jonathan P. Kilkenny, David Andrew Pierpont, Stephan Donald Roozenboom
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Patent number: 7984608Abstract: A method of directing flow of exhaust gas includes directing a first portion of the flow through a first flow path and directing a second portion of the flow through a second flow path. A temperature of at least a portion of the flow in the first flow path is increased, and the flow in the first flow path is sent through a filter. The first and second portions of the flow downstream of the filter to are combined form a combined flow. The combined flow is maintained within a predetermined range of temperatures, and the combined flow is directed to a catalyst.Type: GrantFiled: January 31, 2006Date of Patent: July 26, 2011Assignee: Caterpillar Inc.Inventor: Stephan Donald Roozenboom
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Publication number: 20100024414Abstract: A turbocharger for a use with a combustion engine is provided. The turbocharger may have a turbine housing with a first volute, a second volute, and a common outlet. The turbocharger may also have a turbine wheel disposed between the common outlet and the first and second volutes. The turbocharger may further have a first valve configured to selectively fluidly communicate the first volute with the second volute upstream of the turbine wheel, a second valve configured to selectively fluidly communicate the second volute with the common outlet to bypass the turbine wheel, and a common actuator configured to move the first and second valves.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Inventors: Craig Phillip Hittle, Jonathan P. Kilkenny, David Andrew Pierpont, Stephan Donald Roozenboom
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Patent number: 7591131Abstract: An exhaust treatment system for an engine is disclosed and may have an air induction circuit, an exhaust circuit, and an exhaust recirculation circuit. The air induction circuit may be configured to direct air into the engine. The exhaust circuit may be configured to direct exhaust from the engine and include a turbine driven by the exhaust, a particulate filter disposed in series with and downstream of the turbine, and a catalytic device disposed in series with and downstream of the particulate filter. The exhaust recirculation circuit may be configured to selectively redirect at least some of the exhaust from between the particulate filter and the catalytic device to the air induction circuit. The catalytic device is selected to create backpressure within the exhaust circuit sufficient to ensure that, under normal engine operating conditions above low idle, exhaust can flow into the air induction circuit without throttling of the air.Type: GrantFiled: November 30, 2006Date of Patent: September 22, 2009Assignee: Caterpillar Inc.Inventors: William Lanier Easley, Jr., David Michael Milam, Stephan Donald Roozenboom, Michael Steven Bond, Amir Kapic
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Publication number: 20090139475Abstract: An engine is disclosed. The engine has an engine block and a cylinder within the engine block. The engine also has a cylinder head associated with a portion of the engine block and the cylinder. The engine further has a plurality of coolant passages formed within the engine block and the cylinder head, wherein a portion of the plurality of coolant passages is filled with a metal foam.Type: ApplicationFiled: November 30, 2007Publication date: June 4, 2009Inventors: Stephan Donald Roozenboom, James John Callas
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Patent number: 7490462Abstract: An exhaust recirculation system includes a power source including at least one cylinder outputting exhaust gas and a particulate reducing device fluidly connected to at least one exhaust duct of the power source. The particulate reducing device is configured to reduce an amount of particulates in the exhaust gas. The exhaust recirculation system also includes a recirculation compressor configured to receive and compress at least a portion of the exhaust gas. An intake duct of the at least one cylinder of the power source is fluidly connected to the recirculation compressor to receive the compressed reduced-particulate exhaust gas.Type: GrantFiled: February 21, 2006Date of Patent: February 17, 2009Assignee: Caterpillar Inc.Inventors: Stephan Donald Roozenboom, Andrew John Kieser
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Publication number: 20080209897Abstract: A fluid injector for an exhaust treatment system is disclosed. The fluid injector may have a body, a pin member, and a heater. The pin member may be disposed within the body and have a fluid receiving end and a fluid injecting end. The heater may be disposed about the fluid injecting end of the pin member.Type: ApplicationFiled: November 7, 2007Publication date: September 4, 2008Inventors: Roger Leroy Urven, Stephan Donald Roozenboom, James Richard Weber, Glenn Brian Cox, Stephen Michael Wiley
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Publication number: 20080127645Abstract: An exhaust treatment system for an engine is disclosed and may have an air induction circuit, an exhaust circuit, and an exhaust recirculation circuit. The air induction circuit may be configured to direct air into the engine. The exhaust circuit may be configured to direct exhaust from the engine and include a turbine driven by the exhaust, a particulate filter disposed in series with and downstream of the turbine, and a catalytic device disposed in series with and downstream of the particulate filter. The exhaust recirculation circuit may be configured to selectively redirect at least some of the exhaust from between the particulate filter and the catalytic device to the air induction circuit. The catalytic device is selected to create backpressure within the exhaust circuit sufficient to ensure that, under normal engine operating conditions above low idle, exhaust can flow into the air induction circuit without throttling of the air.Type: ApplicationFiled: November 30, 2006Publication date: June 5, 2008Inventors: William Lanier Easley, David Michael Milam, Stephan Donald Roozenboom, Michael Steven Bond, Amir Kapic
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Patent number: 7370613Abstract: A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.Type: GrantFiled: November 30, 2004Date of Patent: May 13, 2008Assignee: Caterpillar Inc.Inventors: Keith Edward Lawrence, William Elliott Moser, Stephan Donald Roozenboom, Kevin Jay Knox