Patents by Inventor David Joseph Dronzkowski
David Joseph Dronzkowski 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: 8267065Abstract: A method for adjusting fuel injection of an engine is disclosed. In one example, fuel injection timing is adjusted to account for fuels having different cetane numbers. Operation of the engine may be improved especially during conditions where combustion phase may vary.Type: GrantFiled: November 8, 2011Date of Patent: September 18, 2012Assignee: Ford Global Technologies, LLCInventors: Eric Kurtz, Michiel J. Van Nieuwstadt, Thomas Alan Brewbaker, Michael Hopka, Douglas Kuhel, David Joseph Dronzkowski
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Patent number: 8245701Abstract: A method for charging an intake manifold of an engine comprises adjusting an LP EGR flow rate and an uncooled HP EGR flow rate within first limits to maintain a target dilution level in the intake manifold at steady state. The method further comprises adjusting the LP EGR and uncooled HP EGR rates within second limits, different from the first, to maintain the target dilution level in the intake manifold during transient conditions.Type: GrantFiled: October 12, 2011Date of Patent: August 21, 2012Assignee: Ford Global Technologies, LLCInventors: Daniel Joseph Styles, David Joseph Dronzkowski, Eric Kurtz
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Publication number: 20120085315Abstract: A method for adjusting fuel injection of an engine is disclosed. In one example, fuel injection timing is adjusted to account for fuels having different cetane numbers. Operation of the engine may be improved especially during conditions where combustion phase may vary.Type: ApplicationFiled: November 8, 2011Publication date: April 12, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Eric Kurtz, Michiel J. Van Nieuwstadt, Thomas Alan Brewbaker, Michael Hopka, Douglas Kuhel, David Joseph Dronzkowski
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Publication number: 20120031381Abstract: A method for charging an intake manifold of an engine comprises adjusting an LP EGR flow rate and an uncooled HP EGR flow rate within first limits to maintain a target dilution level in the intake manifold at steady-state. The method further comprises adjusting the LP EGR and uncooled HP EGR rates within second limits, different from the first, to maintain the target dilution level in the intake manifold during transient conditions.Type: ApplicationFiled: October 12, 2011Publication date: February 9, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Daniel Joseph Styles, David Joseph Dronzkowski, Eric Kurtz
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Patent number: 8051829Abstract: A method for adjusting fuel injection of an engine is disclosed. In one example, fuel injection timing is adjusted to account for fuels having different cetane numbers. Operation of the engine may be improved especially during conditions where combustion phase may vary.Type: GrantFiled: October 8, 2010Date of Patent: November 8, 2011Assignee: Ford Global Technologies, LLCInventors: Eric Kurtz, Michiel J. Van Nieuwstadt, Thomas Alan Brewbaker, Michael Hopka, Douglas Kuhel, David Joseph Dronzkowski
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Patent number: 8046153Abstract: A fuel compensation factor (FCF) is determined to account for the amount of oxygenated fuel blended in diesel fuel. In one embodiment, the FCF is based on an expected exhaust gas oxygen concentration compared to an actual exhaust gas oxygen concentration. The FCF is used to estimate an amount of oxygenated fuel in the blend. Such estimate can be used to adjust the exhaust temperature model, which is used at least in determining the temperature in aftertreatment devices, the fuel dilution model which affects oil change recommendations, and the diesel particulate filter loading model which affects regenerations. Biodiesels are more prone to waxing at lower temperatures. The estimated amount of biodiesel and the temperature in the injection system are used to prevent and/or delay starting when it is predicted that too much wax exists in the fuel system.Type: GrantFiled: July 20, 2010Date of Patent: October 25, 2011Assignee: Ford Global Technologies, LLCInventors: Eric Kurtz, Diana D. Brehob, Christian Winge Vigild, David Joseph Dronzkowski, Jonathan James Pilbeam, James Eric Anderson
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Patent number: 8042527Abstract: A method for charging an intake manifold of an engine comprises adjusting an LP EGR flow rate and an uncooled HP EGR flow rate within first limits to maintain a target dilution level in the intake manifold at steady-state. The method further comprises adjusting the LP EGR and uncooled HP EGR rates within second limits, different from the first, to maintain the target dilution level in the intake manifold during transient conditions.Type: GrantFiled: August 5, 2010Date of Patent: October 25, 2011Assignee: Ford Global Technologies, LLCInventors: Daniel Joseph Styles, David Joseph Dronzkowski, Eric Kurtz
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Patent number: 8036812Abstract: A system and method are disclosed for controlling an internal combustion engine in which actual concentration of combusted gas in the intake is compared with desired concentration of combusted gas in the intake. When a difference is detected, at least one of start of injection timing and quantity of fuel injected is adjusted in accordance with the difference. The actual concentration of combusted gas in the intake is estimated based on engine sensors such as an oxygen sensor coupled to an engine intake. The adjustment of injection timing and/or quantity of fuel is performed, according to some embodiments, during a transition between a low temperature combustion mode and a standard diesel combustion mode.Type: GrantFiled: August 3, 2010Date of Patent: October 11, 2011Assignee: Ford Global Technologies, Inc.Inventors: Christian Winge Vigild, Daniel Roettger, David Joseph Dronzkowski, Eric Kurtz
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Publication number: 20110168129Abstract: An engine with a high flow capacity brake booster is disclosed. In one example, an actuator is adjusted in response to a flow between the brake booster and an engine intake manifold. Operation of the engine and vehicle brakes may be improved especially when the engine is turbocharged.Type: ApplicationFiled: October 8, 2010Publication date: July 14, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Eric Kurtz, Michiel J. Van Nieuwstadt, Thomas Alan Brewbaker, Michael Hopka, Douglas Kuhel, David Joseph Dronzkowski
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Publication number: 20110162626Abstract: A method for charging an intake manifold of an engine comprises adjusting an LP EGR flow rate and an uncooled HP EGR flow rate within first limits to maintain a target dilution level in the intake manifold at steady-state. The method further comprises adjusting the LP EGR and uncooled HP EGR rates within second limits, different from the first, to maintain the target dilution level in the intake manifold during transient conditions.Type: ApplicationFiled: August 5, 2010Publication date: July 7, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Daniel Joseph Styles, David Joseph Dronzkowski, Eric Kurtz
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Publication number: 20110166767Abstract: A fuel compensation factor (FCF) is determined to account for the amount of oxygenated fuel blended in diesel fuel. In one embodiment, the FCF is based on an expected exhaust gas oxygen concentration compared to an actual exhaust gas oxygen concentration. The FCF is used to estimate an amount of oxygenated fuel in the blend. Such estimate can be used to adjust the exhaust temperature model, which is used at least in determining the temperature in aftertreatment devices, the fuel dilution model which affects oil change recommendations, and the diesel particulate filter loading model which affects regenerations. Biodiesels are more prone to waxing at lower temperatures. The estimated amount of biodiesel and the temperature in the injection system are used to prevent and/or delay starting when it is predicted that too much wax exists in the fuel system.Type: ApplicationFiled: July 20, 2010Publication date: July 7, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Eric Kurtz, Diana D. Brehob, Christian Winge Vigild, David Joseph Dronzkowski, Jonathan James Pilbeam, James Eric Anderson
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Publication number: 20110035133Abstract: A system and method are disclosed for controlling an internal combustion engine in which actual concentration of combusted gas in the intake is compared with desired concentration of combusted gas in the intake. When a difference is detected, at least one of start of injection timing and quantity of fuel injected is adjusted in accordance with the difference. The actual concentration of combusted gas in the intake is estimated based on engine sensors such as an oxygen sensor coupled to an engine intake. The adjustment of injection timing and/or quantity of fuel is performed, according to some embodiments, during a transition between a low temperature combustion mode and a standard diesel combustion mode.Type: ApplicationFiled: August 3, 2010Publication date: February 10, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Christian Winge Vigild, Daniel Roettger, David Joseph Dronzkowski, Eric Kurtz
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Patent number: 7870730Abstract: A method to operate and electronic controlled internal combustion engine, and particularly a heavy duty diesel engine, to effect vane cleaning of a variable geometry turbocharger.Type: GrantFiled: December 18, 2007Date of Patent: January 18, 2011Assignee: Detroit Diesel CorporationInventors: David Joseph Dronzkowski, Matthew Thomas Baird