Patents by Inventor Douglas John Nielsen
Douglas John Nielsen 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: 10337419Abstract: A system and method for cylinder deactivation in a multi-cylinder diesel engine comprises pumping air in to an intake manifold of the diesel engine using a turbocharger. Air is pumped in to the intake manifold using an intake air assisting device. And, fuel injection is selectively deactivated to at least one of the cylinders in the diesel engine. An intake valve and an exhaust valve is selectively deactivated for the at least one of the cylinders of the diesel engine.Type: GrantFiled: January 19, 2016Date of Patent: July 2, 2019Assignee: Eaton Intelligent Power LimitedInventors: James Edward McCarthy, Jr., Douglas John Nielsen
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Patent number: 10119429Abstract: A linear variable differential transformer (LVDT) for monitoring engine valve position is disclosed. The system includes a valve guide having an elongated recess through it. The engine valve has a valve head and a valve stem with two adjacent materials having different magnetic properties meeting at an interface. The valve stem fits and moves linearly within the valve guide, and the valve head closes an engine combustion chamber. It also includes monitoring coils within the valve guide that create a signal related to the position of the interface within the valve guide. An engine control unit (ECU) is coupled to the monitoring coils and receives and analyzes the signal from the monitoring coils to determine operation of the valve.Type: GrantFiled: December 28, 2015Date of Patent: November 6, 2018Assignee: EATON CORPORATIONInventors: Douglas John Nielsen, Mark William Hildebrandt
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Patent number: 10082050Abstract: An anti-rotation guide for a lifter in an overhead valve valvetrain. The anti-rotation guide includes a plug having two lobes connected through a neck region. A first lobe of the plug is held within a bore in the lifter. The bore forms an opening at the edge of the lifter through which the neck of the plug emerges. The bore in the lifter accommodates a first lobe of the plug that is wider than the opening in the edge of the lifter, whereby the plug is shaped to prevent its slipping from the lifter through the opening. The lifter reciprocates in a first bore in the cylinder head. The second lobe of the plug extends outward from the lifter into a second bore formed in the cylinder head and adjoining the first bore. The second lobe reciprocates in the second bore and limits rotation of the lifter.Type: GrantFiled: September 13, 2016Date of Patent: September 25, 2018Assignee: Eaton Intelligent Power LimitedInventors: Douglas John Nielsen, Anthony Leon Spoor, Robert D. Hogan
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Patent number: 9702279Abstract: A system for controlling variable valve actuation in an automobile engine. A first cam has a first lift profile and a second cam has a second lift profile. A rocker arm assembly engages the cams having a first arm for riding on the first cam, and a second arm for riding on the second cam. The second arm has an activatable latch capable of securing the second arm to the first arm when latched. When the first arm is secured to the second arm, the rocker arm assembly achieves a first lift profile and when the first arm is not secured to the second arm, the rocker arm assembly achieves a second lift profile. A non-contact sensor mounted adjacent the rocker arm assembly is adapted to monitor and create data indicative of whether the first arm is secured to the second arm.Type: GrantFiled: March 23, 2015Date of Patent: July 11, 2017Assignee: EATON CORPORATIONInventors: Austin Robert Zurface, David Gerard Genise, Brian Karl VanDeusen, James E. McCarthy, Jr., Douglas John Nielsen, Mark William Hildebrandt
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Publication number: 20170159581Abstract: A system and method for cylinder deactivation in a multi-cylinder diesel engine comprises pumping air in to an intake manifold of the diesel engine using a turbocharger. Air is pumped in to the intake manifold using an intake air assisting device. And, fuel injection is selectively deactivated to at least one of the cylinders in the diesel engine. An intake valve and an exhaust valve is selectively deactivated for the at least one of the cylinders of the diesel engine.Type: ApplicationFiled: January 19, 2016Publication date: June 8, 2017Inventors: James Edward McCarthy, JR., Douglas John Nielsen
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Patent number: 9650921Abstract: A method for adding fluid to an hydraulic lash adjuster (HLA) comprises the steps of placing the HLA in to a centrifuge, the centrifuge having a fluid container, placing a sufficient amount of a first fluid in the fluid container to fluidly communicate with at least one fluid port of the HLA, and spinning the HLA at a first speed sufficient to move the first fluid in to at least the second of two fluid chambers in the HLA.Type: GrantFiled: January 30, 2014Date of Patent: May 16, 2017Assignee: Eaton CorporationInventors: Douglas John Nielsen, David Gerard Genise
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Publication number: 20170074125Abstract: An anti-rotation guide for a lifter in an overhead valve valvetrain. The anti-rotation guide includes a plug having two lobes connected through a neck region. A first lobe of the plug is held within a bore in the lifter. The bore forms an opening at the edge of the lifter through which the neck of the plug emerges. The bore in the lifter accommodates a first lobe of the plug that is wider than the opening in the edge of the lifter, whereby the plug is shaped to prevent its slipping from the lifter through the opening. The lifter reciprocates in a first bore in the cylinder head. The second lobe of the plug extends outward from the lifter into a second bore formed in the cylinder head and adjoining the first bore. The second lobe reciprocates in the second bore and limits rotation of the lifter.Type: ApplicationFiled: September 13, 2016Publication date: March 16, 2017Applicant: Eaton CorporationInventors: Douglas John Nielsen, Anthony Leon Spoor, Robert D. Hogan
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Publication number: 20160138484Abstract: A linear variable differential transformer (LVDT) for monitoring engine valve position is disclosed. The system includes a valve guide having an elongated recess through it. The engine valve has a valve head and a valve stem with two adjacent materials having different magnetic properties meeting at an interface. The valve stem fits and moves linearly within the valve guide, and the valve head closes an engine combustion chamber. It also includes monitoring coils within the valve guide that create a signal related to the position of the interface within the valve guide. An engine control unit (ECU) is coupled to the monitoring coils and receives and analyzes the signal from the monitoring coils to determine operation of the valve.Type: ApplicationFiled: December 28, 2015Publication date: May 19, 2016Inventors: Douglas John Nielsen, Mark William Hildebrandt
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Patent number: 9284859Abstract: A linear variable differential transformer (LVDT) for monitoring engine valve position is disclosed. The system includes a valve guide having an elongated recess through it. The engine valve has a valve head and a valve stem with two adjacent materials having different magnetic properties meeting at an interface. The valve stem fits and moves linearly within the valve guide, and the valve head closes an engine combustion chamber. It also includes monitoring coils within the valve guide that create a signal related to the position of the interface within the valve guide. An engine control unit (ECU) is coupled to the monitoring coils and receives and analyzes the signal from the monitoring coils to determine operation of the valve.Type: GrantFiled: April 22, 2013Date of Patent: March 15, 2016Assignee: Eaton CorporationInventors: Douglas John Nielsen, Mark William Hildebrandt
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Publication number: 20150369087Abstract: A method for adding fluid to an hydraulic lash adjuster (HLA) comprises the steps of placing the HLA in to a centrifuge, the centrifuge having a fluid container, placing a sufficient amount of a first fluid in the fluid container to fluidly communicate with at least one fluid port of the HLA, and spinning the HLA at a first speed sufficient to move the first fluid in to at least the second of two fluid chambers in the HLA.Type: ApplicationFiled: January 30, 2014Publication date: December 24, 2015Applicant: Eaton CorporationInventors: Douglas John Nielsen, David Gerard Genise
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Patent number: 9157339Abstract: An internal combustion engine has a cylinder head mounted to an engine block that at least partially forms a plurality of cylinder combustion chambers. The cylinder head has multiple intake ports and multiple exhaust ports. Engine valves regulate the passage of gas into and out of the combustion chamber. Cam-operated engine valves are mechanically coupled to a rotating cam directly or through one or more of a variety of components that assist in transforming the rotational kinetic energy of the cam to linear motion of the engine valves. One of the exhaust valves and one of the intake valves are mechanically coupled to the cam. Electrohydraulic actuators actuate separate intake and exhaust valves of a particular cylinder. The electrohydraulic actuators are in fluid communication with a high pressure fluid source.Type: GrantFiled: October 3, 2013Date of Patent: October 13, 2015Assignee: Eaton CorporationInventors: Dale Arden Stretch, David Gerard Genise, Douglas John Nielsen, James Edward McCarthy, Jr.
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Publication number: 20150211394Abstract: A system for controlling variable valve actuation in an automobile engine. A first cam has a first lift profile and a second cam has a second lift profile. A rocker arm assembly engages the cams having a first arm for riding on the first cam, and a second arm for riding on the second cam. The second arm has an activatable latch capable of securing the second arm to the first arm when latched. When the first arm is secured to the second arm, the rocker arm assembly achieves a first lift profile and when the first arm is not secured to the second arm, the rocker arm assembly achieves a second lift profile. A non-contact sensor mounted adjacent the rocker arm assembly is adapted to monitor and create data indicative of whether the first arm is secured to the second arm.Type: ApplicationFiled: March 23, 2015Publication date: July 30, 2015Inventors: Austin Robert Zurface, David Gerard Genise, Brian Karl VanDeusen, James E. McCarthy, JR., Douglas John Nielsen, Mark William Hildebrandt
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Patent number: 8985074Abstract: A system for controlling variable valve actuation in an automobile engine is disclosed. A first cam has a first lift profile and a second cam has a second lift profile, both profiles having a base circle portion and a lift portion. A rocker arm assembly engages the cams having a first arm for riding on the first cam, and a second arm for riding on the second cam. The second arm has an activatable latch capable of securing the second arm to the first arm when latched. The latch may only be latched while the arms are riding on the base circle portion of the cams. When the first arm is secured to the second arm, the rocker arm assembly achieves a first lift profile and when the first arm is not secured to the second arm, the rocker arm assembly achieves a second lift profile. A non-contact sensor mounted adjacent the rocker arm assembly is adapted to monitor and create data indicative of whether the first arm is secured to the second arm.Type: GrantFiled: April 22, 2013Date of Patent: March 24, 2015Assignee: Eaton CorporationInventors: Austin Robert Zurface, David Gerard Genise, Brian Karl VanDeusen, McCarthy E. James, Jr., Douglas John Nielsen, Mark William Hildebrandt
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Publication number: 20140116363Abstract: An internal combustion engine has a cylinder head mounted to an engine block that at least partially forms a plurality of cylinder combustion chambers. The cylinder head has multiple intake ports and multiple exhaust ports. Engine valves regulate the passage of gas into and out of the combustion chamber. Cam-operated engine valves are mechanically coupled to a rotating cam directly or through one or more of a variety of components that assist in transforming the rotational kinetic energy of the cam to linear motion of the engine valves. One of the exhaust valves and one of the intake valves are mechanically coupled to the cam. Electrohydraulic actuators actuate separate intake and exhaust valves of a particular cylinder. The electrohydraulic actuators are in fluid communication with a high pressure fluid source.Type: ApplicationFiled: October 3, 2013Publication date: May 1, 2014Applicant: Eaton CorporationInventors: Dale Arden Stretch, David Gerard Genise, Douglas John Nielsen, James Edward McCarthy, JR.
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Publication number: 20130312506Abstract: A linear variable differential transformer (LVDT) for monitoring engine valve position is disclosed. The system includes a valve guide having an elongated recess through it. The engine valve has a valve head and a valve stem with two adjacent materials having different magnetic properties meeting at an interface. The valve stem fits and moves linearly within the valve guide, and the valve head closes an engine combustion chamber. It also includes monitoring coils within the valve guide that create a signal related to the position of the interface within the valve guide. An engine control unit (ECU) is coupled to the monitoring coils and receives and analyzes the signal from the monitoring coils to determine operation of the valve.Type: ApplicationFiled: April 22, 2013Publication date: November 28, 2013Applicant: Eaton CorporationInventors: Douglas John Nielsen, Mark William Hildebrandt
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Publication number: 20130306013Abstract: A system for controlling variable valve actuation in an automobile engine is disclosed. A first cam has a first lift profile and a second cam has a second lift profile, both profiles having a base circle portion and a lift portion. A rocker arm assembly engages the cams having a first arm for riding on the first cam, and a second arm for riding on the second cam. The second arm has an activatable latch capable of securing the second arm to the first arm when latched. The latch may only be latched while the arms are riding on the base circle portion of the cams. When the first arm is secured to the second arm, the rocker arm assembly achieves a first lift profile and when the first arm is not secured to the second arm, the rocker arm assembly achieves a second lift profile. A non-contact sensor mounted adjacent the rocker arm assembly is adapted to monitor and create data indicative of whether the first arm is secured to the second arm.Type: ApplicationFiled: April 22, 2013Publication date: November 21, 2013Applicant: Eaton CorporationInventors: Austin Robert Zurface, David Gerard Genise, Brian Karl VanDeusen, McCarthy E. James, JR., Douglas John Nielsen, Mark William Hildebrandt