Patents by Inventor James Kristopher von der Ehe
James Kristopher von der Ehe 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: 11566577Abstract: A compression monitoring system for a reciprocating engine includes a controller configured to terminate combustion within a combustion chamber of the reciprocating engine while a crankshaft of the reciprocating engine is rotating. The controller is also configured to receive an input signal from a sensor indicative of vibration within a cylinder extending from the combustion chamber while the crankshaft is rotating and the combustion is terminated. Furthermore, the controller is configured to determine a magnitude of the vibration within a frequency range and to determine a maximum pressure within the cylinder based on the magnitude of the vibration within the frequency range. The controller is also configured to output an output signal indicative of the maximum pressure within the cylinder and/or control operation of the reciprocating engine based on the maximum pressure within the cylinder.Type: GrantFiled: February 1, 2021Date of Patent: January 31, 2023Assignee: Innio Waukesha Gas Engines Inc.Inventor: James Kristopher von der Ehe
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Publication number: 20220243679Abstract: A compression monitoring system for a reciprocating engine includes a controller configured to terminate combustion within a combustion chamber of the reciprocating engine while a crankshaft of the reciprocating engine is rotating. The controller is also configured to receive an input signal from a sensor indicative of vibration within a cylinder extending from the combustion chamber while the crankshaft is rotating and the combustion is terminated. Furthermore, the controller is configured to determine a magnitude of the vibration within a frequency range and to determine a maximum pressure within the cylinder based on the magnitude of the vibration within the frequency range. The controller is also configured to output an output signal indicative of the maximum pressure within the cylinder and/or control operation of the reciprocating engine based on the maximum pressure within the cylinder.Type: ApplicationFiled: February 1, 2021Publication date: August 4, 2022Inventor: James Kristopher von der Ehe
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Patent number: 9850841Abstract: Aspects of the disclosure include a system for controlling an exhaust gas communicated from an engine system to a turbine component of a turbocharger system. The system can include an engine having an operational speed; a turbocharger system including a turbine component, the exhaust gas being output from the engine in an exhaust line; a controller in communication with the engine; and a sensor disposed in the exhaust line being in communication with the controller, the system operating according to the following method: measuring the first temperature of the exhaust gas, determining if the measured first temperature of the exhaust gas is within a temperature safety window of the system; calculating an engine speed of the engine; and adjusting an engine speed setpoint and speed of the engine based on the measured first temperature and the calculated engine speed.Type: GrantFiled: December 11, 2013Date of Patent: December 26, 2017Assignee: General Electric CompanyInventors: Julian R. Knudsen, Troy Christopher Gosselin, Yupeng Xiong, James Kristopher von der Ehe
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Patent number: 9399965Abstract: A system includes a controller configured to compare a nitrogen oxides (NOX) concentration within treated exhaust gases from a combustion engine after flowing through a first catalyst assembly and a second catalyst assembly relative to a NOX threshold value, to determine a change in O2 concentration within the treated exhaust gases between the first and second catalyst assemblies upstream of a location of oxidant injection into the treated exhaust gases, and to adjust an air-fuel ratio of the combustion engine based on the change in O2 concentration in the treated exhaust gases if the NOX concentration is greater than the NOX threshold value.Type: GrantFiled: December 12, 2014Date of Patent: July 26, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: James Kristopher von der Ehe, Maruthi Narasinga Rao Devarakonda, Dennis John Spaulding
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Publication number: 20160169135Abstract: A system includes a controller configured to compare a nitrogen oxides (NOX) concentration within treated exhaust gases from a combustion engine after flowing through a first catalyst assembly and a second catalyst assembly relative to a NOX threshold value, to determine a change in O2 concentration within the treated exhaust gases between the first and second catalyst assemblies upstream of a location of oxidant injection into the treated exhaust gases, and to adjust an air-fuel ratio of the combustion engine based on the change in O2 concentration in the treated exhaust gases if the NOX concentration is greater than the NOX threshold value.Type: ApplicationFiled: December 12, 2014Publication date: June 16, 2016Inventors: James Kristopher von der Ehe, Maruthi Narasinga Rao Devarakonda, Dennis John Spaulding
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Publication number: 20160146081Abstract: A system includes an exhaust aftertreatment system configured to treat emissions from a combustion engine. The exhaust aftertreatment system includes a first catalyst assembly having an outlet. The exhaust aftertreatment system also includes an ammonia slip catalyst (ASC) assembly configured to receive a fluid from the first catalyst assembly and to convert ammonia (NH3) within the fluid into nitrogen (N2), wherein the ASC assembly has an inlet. The exhaust aftertreatment system further includes a silencer disposed between the outlet of the first catalyst assembly and the inlet of the ASC assembly, wherein the silencer is configured to receive the fluid and an oxidant for mixing with the fluid provide sufficient oxygen in the fluid flowing into the inlet of the ASC assembly to enable the catalytic activity in the ASC assembly that coverts NH3 into N2, and the silencer is configured to mix the fluid and the oxidant.Type: ApplicationFiled: November 26, 2014Publication date: May 26, 2016Inventors: Dennis John Spaulding, Maruthi Narasinga Rao Devarakonda, James Kristopher von der Ehe
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Patent number: 9347358Abstract: A system includes an exhaust aftertreatment system configured to treat emissions from a combustion engine. The exhaust aftertreatment system includes a first catalyst assembly having an outlet. The exhaust aftertreatment system also includes an ammonia slip catalyst (ASC) assembly configured to receive a fluid from the first catalyst assembly and to convert ammonia (NH3) within the fluid into nitrogen (N2), wherein the ASC assembly has an inlet. The exhaust aftertreatment system further includes a silencer disposed between the outlet of the first catalyst assembly and the inlet of the ASC assembly, wherein the silencer is configured to receive the fluid and an oxidant for mixing with the fluid provide sufficient oxygen in the fluid flowing into the inlet of the ASC assembly to enable the catalytic activity in the ASC assembly that coverts NH3 into N2, and the silencer is configured to mix the fluid and the oxidant.Type: GrantFiled: November 26, 2014Date of Patent: May 24, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Dennis John Spaulding, Maruthi Narasinga Rao Devarakonda, James Kristopher von der Ehe
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Patent number: 9149768Abstract: A passive mid bed air injection apparatus for an engine includes a three way catalyst positioned in an exhaust stream of the engine. The three way catalyst reduces NOx, CO and HC from the exhaust stream. The three way catalyst includes an ammonia slip catalyst positioned in the exhaust stream of the engine. The ammonia slip catalyst is positioned downstream from the three way catalyst and oxidizes NH3 and CO from the exhaust stream. The three way catalyst includes an oxygen input disposed between the three way catalyst and the ammonia slip catalyst such that the oxygen input delivers air downstream from the three way catalyst and upstream from the ammonia slip catalyst. The oxygen input receives the air from a charged side of a forced induction device and delivers the air to the exhaust stream entering the ammonia slip catalyst. An associated method also provided.Type: GrantFiled: March 27, 2014Date of Patent: October 6, 2015Assignee: GENERAL ELECTRIC COMPANYInventors: Maruthi Narasinga Rao Devarakonda, Robert Earl McDowell, Dennis John Spaulding, James Kristopher von der Ehe
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Publication number: 20150273393Abstract: A passive mid bed air injection apparatus for an engine includes a three way catalyst positioned in an exhaust stream of the engine. The three way catalyst reduces NOx, CO and HC from the exhaust stream. The three way catalyst includes an ammonia slip catalyst positioned in the exhaust stream of the engine. The ammonia slip catalyst is positioned downstream from the three way catalyst and oxidizes NH3 and CO from the exhaust stream. The three way catalyst includes an oxygen input disposed between the three way catalyst and the ammonia slip catalyst such that the oxygen input delivers air downstream from the three way catalyst and upstream from the ammonia slip catalyst. The oxygen input receives the air from a charged side of a forced induction device and delivers the air to the exhaust stream entering the ammonia slip catalyst. An associated method also provided.Type: ApplicationFiled: March 27, 2014Publication date: October 1, 2015Applicant: General Electric CompanyInventors: Maruthi Narasinga Rao Devarakonda, Robert Earl McDowell, Dennis John Spaulding, James Kristopher von der Ehe
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Publication number: 20150159572Abstract: Aspects of the disclosure include a system for controlling an exhaust gas communicated from an engine system to a turbine component of a turbocharger system. The system can include a sensor configured to determine a temperature of the exhaust gas; and a controller configured to adjust an engine system speed based on the temperature of the exhaust gas being greater than or less than a temperature safety window.Type: ApplicationFiled: December 11, 2013Publication date: June 11, 2015Applicant: GENERAL ELECTRIC COMPANYInventors: Julian R. Knudsen, Troy Christopher Gosselin, Yupeng Xiong, James Kristopher von der Ehe