Patents by Inventor Russ P. Durrett
Russ P. Durrett 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: 6915776Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g. the start of combustion, and generating an associated engine operating condition signal.Type: GrantFiled: October 15, 2003Date of Patent: July 12, 2005Assignee: Cummins Inc.Inventors: Axel O. zur Loye, Omowoleoa C. Akinyemi, Russ P. Durrett, Patrick F. Flynn, Gary L. Hunter, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Publication number: 20040103860Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g. the start of combustion, and generating an associated engine operating condition signal.Type: ApplicationFiled: October 15, 2003Publication date: June 3, 2004Applicant: Cummins Inc.Inventors: Axel O. zur Loye, Omowoleola C. Akinyemi, Russ P. Durrett, Patrick F. Flynn, Gary L. Hunter, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Publication number: 20030200955Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g. the start of combustion, and generating an associated engine operating condition signal.Type: ApplicationFiled: June 3, 2003Publication date: October 30, 2003Applicant: Cummins Inc.Inventors: Axel O. zur Loye, Omowoleola C. Akinyemi, Russ P. Durrett, Patrick F. Flynn, Gary L. Hunter, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Publication number: 20020185109Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g. the start of combustion, and generating an associated engine operating condition signal.Type: ApplicationFiled: June 25, 2002Publication date: December 12, 2002Applicant: Cummins Inc.Inventors: Patrick F. Flynn, Gary L. Hunter, Axel O. Zur Loye, Omowoleola C. Akinyemi, Russ P. Durrett, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Publication number: 20020026926Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g. the start of combustion, and generating an associated engine operating condition signal.Type: ApplicationFiled: September 28, 2001Publication date: March 7, 2002Inventors: Axel O. zur Loye, Omowoleola C. Akinyemi, Russ P. Durrett, Patrick F. Flynn, Gary L. Hunter, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Patent number: 6286482Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low oxides of nitrogen emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g.Type: GrantFiled: August 22, 1997Date of Patent: September 11, 2001Assignee: Cummins Engine Company, Inc.Inventors: Patrick F. Flynn, Gary L. Hunter, Axel O. zur Loye, Omowoleoia C. Akinyemi, Russ P. Durrett, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Publication number: 20010017127Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g. the start of combustion, and generating an associated engine operating condition signal.Type: ApplicationFiled: March 7, 2001Publication date: August 30, 2001Inventors: Patrick F. Flynn, Gary L. Hunter, Axel O. Zur Loye, Omowoleola C. Akinyemi, Russ P. Durrett, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Patent number: 6276334Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low oxides of nitrogen emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g.Type: GrantFiled: February 23, 1999Date of Patent: August 21, 2001Assignee: Cummins Engine Company, Inc.Inventors: Patrick F. Flynn, Gary L. Hunter, Axel O. zur Loye, Omowoleola C. Akinyemi, Russ P. Durrett, Greg A. Moore, George G. Muntean, Lester L. Peters, Patrick M. Pierz, Julie A. Wagner, John F. Wright, Jackie M. Yeager
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Patent number: 6230683Abstract: A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g.Type: GrantFiled: December 8, 1999Date of Patent: May 15, 2001Assignee: Cummins Engine Company, Inc.Inventors: Axel O. zur Loye, Omowoleola C. Akinyemi, Russ P. Durrett, Patrick F. Flynn, Gary L. Hunter, Greg A. Moore, Jackie M. Mudd, George G. Muntean, Julie A. Wagner, John F. Wright
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Patent number: 5619969Abstract: A fuel injection rate shaping control system is provided which effectively controls the flow rate of fuel injected into the combustion chamber of an engine to improve combustion and reduce emissions by controlling the rate of pressure increase during injection. The injection rate shaping control system includes a rate shaping control device including a rate shaping transfer passage having a predetermined length and diameter specifically designed to create a desired injection pressure rate shape. In other embodiments of the present invention, two or more rate shaping transfer passages capable of producing distinct rate shapes are packaged in various fuel injection systems to selectively provide various rate shapes depending on operating conditions. Switching valves, i.e., solenoid operated three-way valves, may be used to direct the fuel or timing fluid flow to any one of the rate shaping transfer passages.Type: GrantFiled: November 28, 1995Date of Patent: April 15, 1997Assignee: Cummins Engine Company, Inc.Inventors: Chung Y. Liu, Benjamin M. Yen, Lester L. Peters, Julius P. Perr, Russ P. Durrett, Donald N. Case, Dennis Ashwill, Chris Sorg, John Lane, Mark Cavanagh