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).

  • Patent number: 11680548
    Abstract: 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: Grant
    Filed: March 7, 2022
    Date of Patent: June 20, 2023
    Assignee: Caterpillar Inc.
    Inventors: Ye Tian, Quinton Marcus Burear, Michael Taylor McKinley, Stephan Donald Roozenboom
  • Patent number: 11367320
    Abstract: 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: Grant
    Filed: September 24, 2019
    Date of Patent: June 21, 2022
    Assignee: Caterpillar Inc.
    Inventors: Ye Tian, Grant Michael Klobuchar, Brenton William Bush, Stephan Donald Roozenboom
  • Publication number: 20220186695
    Abstract: 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: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Applicant: Caterpillar Inc.
    Inventors: Ye Tian, Quinton Marcus Burcar, Michael Taylor McKinley, Stephan Donald Roozenboom
  • Patent number: 11333048
    Abstract: 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: Grant
    Filed: December 18, 2020
    Date of Patent: May 17, 2022
    Assignee: Caterpillar Inc.
    Inventors: Stephan Donald Roozenboom, Jeffrey Clark Krieger, Michael Dean Roley
  • Patent number: 11268482
    Abstract: 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: Grant
    Filed: April 21, 2020
    Date of Patent: March 8, 2022
    Assignee: Caterpillar Inc.
    Inventors: Ye Tian, Quinton Marcus Burcar, Michael Taylor McKinley, Stephan Donald Roozenboom
  • Publication number: 20210324821
    Abstract: 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: Application
    Filed: April 21, 2020
    Publication date: October 21, 2021
    Applicant: Caterpillar Inc.
    Inventors: Ye Tian, Quinton Marcus Burcar, Michael Taylor McKinley, Stephan Donald Roozenboom
  • Publication number: 20210090362
    Abstract: 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: Application
    Filed: September 24, 2019
    Publication date: March 25, 2021
    Applicant: Caterpillar Inc.
    Inventors: Ye Tian, Grant Michael Klobuchar, Brenton William Bush, Stephan Donald Roozenboom
  • Patent number: 8484947
    Abstract: 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: Grant
    Filed: November 7, 2007
    Date of Patent: July 16, 2013
    Assignee: Caterpillar Inc.
    Inventors: Roger Leroy Urven, Jr., Stephan Donald Roozenboom, James Richard Weber, Glenn Brian Cox, Stephen Michael Wiley
  • Publication number: 20120222419
    Abstract: 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: Application
    Filed: May 15, 2012
    Publication date: September 6, 2012
    Inventors: Craig Phillip Hittle, Jonathan P. Kilkenny, David Andrew Pierpont, Stephan Donald Roozenboom
  • Patent number: 8196403
    Abstract: 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: Grant
    Filed: July 31, 2008
    Date of Patent: June 12, 2012
    Assignee: Caterpillar Inc.
    Inventors: Craig Phillip Hittle, Jonathan P. Kilkenny, David Andrew Pierpont, Stephan Donald Roozenboom
  • Patent number: 7984608
    Abstract: 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: Grant
    Filed: January 31, 2006
    Date of Patent: July 26, 2011
    Assignee: Caterpillar Inc.
    Inventor: Stephan Donald Roozenboom
  • Publication number: 20100024414
    Abstract: 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: Application
    Filed: July 31, 2008
    Publication date: February 4, 2010
    Inventors: Craig Phillip Hittle, Jonathan P. Kilkenny, David Andrew Pierpont, Stephan Donald Roozenboom
  • Patent number: 7591131
    Abstract: 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: Grant
    Filed: November 30, 2006
    Date of Patent: September 22, 2009
    Assignee: Caterpillar Inc.
    Inventors: William Lanier Easley, Jr., David Michael Milam, Stephan Donald Roozenboom, Michael Steven Bond, Amir Kapic
  • Publication number: 20090139475
    Abstract: 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: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventors: Stephan Donald Roozenboom, James John Callas
  • Patent number: 7490462
    Abstract: 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: Grant
    Filed: February 21, 2006
    Date of Patent: February 17, 2009
    Assignee: Caterpillar Inc.
    Inventors: Stephan Donald Roozenboom, Andrew John Kieser
  • Publication number: 20080209897
    Abstract: 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: Application
    Filed: November 7, 2007
    Publication date: September 4, 2008
    Inventors: Roger Leroy Urven, Stephan Donald Roozenboom, James Richard Weber, Glenn Brian Cox, Stephen Michael Wiley
  • Publication number: 20080127645
    Abstract: 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: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Inventors: William Lanier Easley, David Michael Milam, Stephan Donald Roozenboom, Michael Steven Bond, Amir Kapic
  • Patent number: 7370613
    Abstract: 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: Grant
    Filed: November 30, 2004
    Date of Patent: May 13, 2008
    Assignee: Caterpillar Inc.
    Inventors: Keith Edward Lawrence, William Elliott Moser, Stephan Donald Roozenboom, Kevin Jay Knox