Patents by Inventor Adrian P. Dale
Adrian P. Dale 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: 9752537Abstract: A unique engine system has an engine with a dedicated exhaust gas recirculation cylinder, an EGR system that receives exhaust gas from the dedicated cylinder, and a turbocharger having turbine inlet ports in fluid communication with other engine cylinders via a plurality of exhaust passages. At least two of the exhaust passages are substantially isolated from each other. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for engines and engine systems.Type: GrantFiled: May 20, 2015Date of Patent: September 5, 2017Assignee: Cummins Inc.Inventors: Adrian P. Dale, Michael D. Dolton, Samuel C. Geckler, James Alexander McEwen, Nicholas Kenneth Sharp, Stephen Edward Garrett, Anthony Kyle Perfetto
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Patent number: 9644573Abstract: A system includes an internal combustion engine, an EGR flow path having an EGR cooler path and an EGR cooler bypass path, a turbocharger, a compressed intake flow path, an EGR bypass valve that selectively divides the EGR flow between the EGR cooler path and the EGR cooler bypass path, a charge air cooler bypass valve that reduces an amount of cooling of compressed intake air out of the compression side of the turbocharger, and an aftertreatment component that receives the exhaust stream from the turbine side of the turbocharger. The aftertreatment component requires at least intermittent exhaust stream temperature elevation. The system includes a controller that determines that an exhaust stream temperature elevation request is present, and provides a charge air cooler bypass valve command and an EGR bypass valve command in response to the exhaust stream temperature elevation request.Type: GrantFiled: October 4, 2012Date of Patent: May 9, 2017Assignee: Cummins Inc.Inventor: Adrian P. Dale
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Publication number: 20150345433Abstract: A unique engine system has an engine with a dedicated exhaust gas recirculation cylinder, an EGR system that receives exhaust gas from the dedicated cylinder, and a turbocharger having turbine inlet ports in fluid communication with other engine cylinders via a plurality of exhaust passages. At least two of the exhaust passages are substantially isolated from each other. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for engines and engine systems.Type: ApplicationFiled: May 20, 2015Publication date: December 3, 2015Inventors: Adrian P. Dale, Michael D. Dolton, Samuel C. Geckler, James Alexander McEwen, Nicholas Kenneth Sharp, Stephen Edward Garrett, Anthony Kyle Perfetto
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Patent number: 8997353Abstract: An apparatus, system, and method are disclosed for optimizing a valve orifice shape. According to one representative embodiment, a method includes determining a specified relationship between a valve position and an output characteristic, and determining an orifice profile. The method also includes determining a relationship of an orifice area to the output characteristic. Further, the method includes shaping an orifice in a valve based on the orifice profile and the specified relationship between the valve position and the output characteristic. According to the method, the valve should approximately exhibit the specified relationship.Type: GrantFiled: March 8, 2008Date of Patent: April 7, 2015Assignee: Cummins IP, Inc.Inventors: Adrian P. Dale, Vivek A. Sujan
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Publication number: 20140319397Abstract: An apparatus, system, and method are disclosed for optimizing a valve orifice shape. According to one representative embodiment, a method includes determining a specified relationship between a valve position and an output characteristic, and determining an orifice profile. The method also includes determining a relationship of an orifice area to the output characteristic. Further, the method includes shaping an orifice in a valve based on the orifice profile and the specified relationship between the valve position and the output characteristic. According to the method, the valve should approximately exhibit the specified relationship.Type: ApplicationFiled: July 11, 2014Publication date: October 30, 2014Inventors: Adrian P. Dale, Vivek A. Sujan
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Patent number: 8001783Abstract: An apparatus, system, and method are disclosed for a single-actuated multi-function valve. The apparatus includes a primary fluid conduit, a secondary fluid conduit, and a valve. The primary fluid conduit flows from an exhaust manifold to an outlet through a high pressure turbocharger and a low pressure turbocharger. The secondary fluid conduit flows from the exhaust manifold to an outlet through the low pressure turbocharger. The valve has two flow passages—the first flow passage is a variable restriction within the primary fluid conduit, and the second flow passage is a variable restriction within the secondary fluid conduit. Turning the valve one direction from a nominal position controls the flow ratios in the primary and secondary fluid conduits, while turning the valve in the other direction from the nominal position controls exhaust braking.Type: GrantFiled: January 24, 2008Date of Patent: August 23, 2011Assignee: Cummins IP, Inc.Inventors: Adrian P. Dale, Vivek A. Sujan
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Patent number: 7861580Abstract: According to one exemplary embodiment, a virtual turbine speed sensor for a multi-stage turbocharger system of an internal combustion engine is disclosed. The multi-stage turbocharger system includes at least two sequential turbochargers each having a compressor and a turbine. The virtual turbine speed sensor includes a compressor efficiency module, an inter-stage air temperature module, and a turbine speed module. The compressor efficiency module is configured to estimate an efficiency of a compressor of a first of the at least two turbochargers. The inter-stage air temperature module is configured to estimate an inter-stage temperature of air between the at least two compressors. The inter-stage temperature estimate is based at least partially on the efficiency of the compressor of the first turbocharger. The turbine speed module is configured to estimate a speed of a turbine of a second of the at least two turbochargers.Type: GrantFiled: June 23, 2008Date of Patent: January 4, 2011Assignee: Cummins IP, Inc.Inventors: Vivek A. Sujan, Adrian P. Dale, Jeffrey Matthews, Kent Krajewski, David Stroh, Ryo Fuchinoue
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Patent number: 7805235Abstract: A system and method are provided for controlling a flow of intake air entering an internal combustion engine. At least some of the intake air is diverted away from the engine in response to detection of a first operating condition that is indicative of a minimum engine fueling rate. A second operating condition that is indicative of a flow rate of the intake air entering the engine is monitored, and diverting at least some of the intake air away from the engine is discontinued if the second operating condition indicates that the flow rate of the intake air entering the engine is within a threshold value of a target flow rate.Type: GrantFiled: April 8, 2008Date of Patent: September 28, 2010Assignee: Cummins Inc.Inventors: Vivek A. Sujan, Morgan Andreae, Adrian P. Dale, Jeffrey A. Matthews
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Patent number: 7770565Abstract: A system and method are provided for controlling recirculation of exhaust gas to an internal combustion engine having an exhaust gas recirculation (EGR) system comprising an EGR conduit coupled between an exhaust manifold and an intake manifold of the engine. Exhaust gas produced by the engine is trapped within the EGR system in response to detection of a first operating condition that is indicative of a minimum engine fueling rate. The trapped exhaust gas is released from the EGR system into the intake manifold of the engine in response to detection of a second operating condition that is indicative of a subsequent increase in engine fueling rate above the minimum engine fueling rate.Type: GrantFiled: April 8, 2008Date of Patent: August 10, 2010Assignee: Cummins Inc.Inventors: Vivek A. Sujan, Morgan Andreae, Adrian P. Dale, Jeffrey A. Matthews
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Patent number: 7757549Abstract: An apparatus, system, and method are disclosed for predictive control of a turbocharger. The method includes interpreting a compressor performance model for a turbocharger, and interpreting at least one current operating parameter. The method further includes calculating a performance margin, calculating a performance margin derivative, and calculating a response value. The performance margin comprises a choke margin or a surge margin according to the position of an operating point in the compressor performance model. The performance margin is implemented in a first sigmoid function, and the performance margin derivative is implemented in a second sigmoid function. The response value is determined by applying a MIN function to the output of the product of the sigmoid functions in the choke margin case, and by applying a MAX function to the product of the sigmoid functions in the surge margin case.Type: GrantFiled: February 21, 2008Date of Patent: July 20, 2010Assignee: Cummins IP, IncInventors: Morgan Andreae, Adrian P. Dale, Jeffrey Matthews, William A. Rankin, Vivek A. Sujan
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Publication number: 20090314082Abstract: According to one exemplary embodiment, a virtual turbine speed sensor for a multi-stage turbocharger system of an internal combustion engine is disclosed. The multi-stage turbocharger system includes at least two sequential turbochargers each having a compressor and a turbine. The virtual turbine speed sensor includes a compressor efficiency module, an inter-stage air temperature module, and a turbine speed module. The compressor efficiency module is configured to estimate an efficiency of a compressor of a first of the at least two turbochargers. The inter-stage air temperature module is configured to estimate an inter-stage temperature of air between the at least two compressors. The inter-stage temperature estimate is based at least partially on the efficiency of the compressor of the first turbocharger. The turbine speed module is configured to estimate a speed of a turbine of a second of the at least two turbochargers.Type: ApplicationFiled: June 23, 2008Publication date: December 24, 2009Inventors: Vivek A. Sujan, Adrian P. Dale, Jeffrey Matthews, Kent Krajewski, David Stroh, Ryo Fuchinoue
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Publication number: 20090250043Abstract: A system and method are provided for controlling recirculation of exhaust gas to an internal combustion engine having an exhaust gas recirculation (EGR) system comprising an EGR conduit coupled between an exhaust manifold and an intake manifold of the engine. Exhaust gas produced by the engine is trapped within the EGR system in response to detection of a first operating condition that is indicative of a minimum engine fueling rate. The trapped exhaust gas is released from the EGR system into the intake manifold of the engine in response to detection of a second operating condition that is indicative of a subsequent increase in engine fueling rate above the minimum engine fueling rate.Type: ApplicationFiled: April 8, 2008Publication date: October 8, 2009Inventors: Vivek A. Sujan, Morgan Andreae, Adrian P. Dale, Jeffrey A. Matthews
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Publication number: 20090250042Abstract: A system and method are provided for controlling a flow of intake air entering an internal combustion engine. At least some of the intake air is diverted away from the engine in response to detection of a first operating condition that is indicative of a minimum engine fueling rate. A second operating condition that is indicative of a flow rate of the intake air entering the engine is monitored, and diverting at least some of the intake air away from the engine is discontinued if the second operating condition indicates that the flow rate of the intake air entering the engine is within a threshold value of a target flow rate.Type: ApplicationFiled: April 8, 2008Publication date: October 8, 2009Inventors: Vivek A. Sujan, Morgan Andreae, Adrian P. Dale, Jeffrey A. Matthews
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Publication number: 20090224190Abstract: An apparatus, system, and method are disclosed for optimizing a valve orifice shape. According to one representative embodiment, a method includes determining a specified relationship between a valve position and an output characteristic, and determining an orifice profile. The method also includes determining a relationship of an orifice area to the output characteristic. Further, the method includes shaping an orifice in a valve based on the orifice profile and the specified relationship between the valve position and the output characteristic. According to the method, the valve should approximately exhibit the specified relationship.Type: ApplicationFiled: March 8, 2008Publication date: September 10, 2009Inventors: Adrian P. Dale, Vivek A. Sujan
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Publication number: 20090211248Abstract: An apparatus, system, and method are disclosed for predictive control of a turbocharger. The method includes interpreting a compressor performance model for a turbocharger, and interpreting at least one current operating parameter. The method further includes calculating a performance margin, calculating a performance margin derivative, and calculating a response value. The performance margin comprises a choke margin or a surge margin according to the position of an operating point in the compressor performance model. The performance margin is implemented in a first sigmoid function, and the performance margin derivative is implemented in a second sigmoid function. The response value is determined by applying a MIN function to the output of the product of the sigmoid functions in the choke margin case, and by applying a MAX function to the product of the sigmoid functions in the surge margin case.Type: ApplicationFiled: February 21, 2008Publication date: August 27, 2009Inventors: Morgan Andreae, Adrian P. Dale, Jeffrey Matthews, William A. Rankin, Vivek A. Sujan
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Publication number: 20090188251Abstract: An apparatus, system, and method are disclosed for a single-actuated multi-function valve. The apparatus includes a primary fluid conduit, a secondary fluid conduit, and a valve. The primary fluid conduit flows from an exhaust manifold to an outlet through a high pressure turbocharger and a low pressure turbocharger. The secondary fluid conduit flows from the exhaust manifold to an outlet through the low pressure turbocharger. The valve has two flow passages—the first flow passage is a variable restriction within the primary fluid conduit, and the second flow passage is a variable restriction within the secondary fluid conduit. Turning the valve one direction from a nominal position controls the flow ratios in the primary and secondary fluid conduits, while turning the valve in the other direction from the nominal position controls exhaust braking.Type: ApplicationFiled: January 24, 2008Publication date: July 30, 2009Inventors: Adrian P. Dale, Vivek A. Sujan
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Publication number: 20090178406Abstract: An apparatus, system, and method are disclosed for utilizing a diesel aftertreatment device between the high pressure and low pressure turbine stages of a two-stage turbocharging system. A diesel aftertreatment device is connected in series between the high pressure turbine and the low pressure turbine such that the diesel aftertreatment device receives inflow from the high pressure turbine and provides outflow to the low pressure turbine. A bypass mechanism is provided such that at low engine speeds or loads, engine exhaust flows through the high pressure turbine as well as the diesel aftertreatment device, but at high engine speeds or loads, the high pressure turbine and diesel aftertreatment device are bypassed, thereby allowing the engine to operate more efficiently while still effectively removing pollutants from the engine exhaust.Type: ApplicationFiled: January 14, 2008Publication date: July 16, 2009Inventors: Jeffrey Matthews, Adrian P. Dale
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Patent number: 5441383Abstract: A variable inlet nozzle exhaust-driven turbocharger comprises a compressor (2, 5, 6) driven via a main shaft (8) by a turbine wheel (10, 11) subject to engine exhaust gas flow through an annular nozzle formed between a heat shroud (21) having slots (22) to receive vanes (17) carried by a sleeve axially movable in the exhaust duct (19) downstream of the turbine wheel the sleeve being actuable by means acting via a space (25) defined between bearing parts of the sleeve and the part of the turbine housing carrying the exhaust duct bore (19) being of uniform annular section to minimize thermal effects.Type: GrantFiled: May 19, 1993Date of Patent: August 15, 1995Assignee: AlliedSignal Inc.Inventors: Adrian P. Dale, David Flaxington, Andrew R. S. McCutcheon