Patents Examined by Jonathan Matthias
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Patent number: 9506388Abstract: Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.Type: GrantFiled: February 5, 2015Date of Patent: November 29, 2016Assignee: General Electric CompanyInventors: Paul Lloyd Flynn, James Edward Arner, Shishir Tiwari, Shashi Kiran
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Patent number: 9500109Abstract: A system and method include a nozzle configured to inject water into a gas turbine at a specified water flow rate. An effluent stream of the gas turbine includes a gas turbine effluent stream including a first emission level. A secondary emissions control apparatus is in fluid communication with the gas turbine effluent stream. An output stream of the secondary emissions control apparatus can include a second emissions level below a specified emissions output threshold. The method and system can reduce the amount of water over time that is introduced into the gas turbine based on the threshold emissions reduction capability of the secondary emissions control apparatus.Type: GrantFiled: May 20, 2015Date of Patent: November 22, 2016Assignee: Wellhead Electric Company, Inc.Inventors: Christian Skov Heiberger, John Grant McDaniel
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Patent number: 9500111Abstract: A method for determining reducing agent slippage from an exhaust-gas treatment device includes determining a difference between sensor signals of a second nitrogen oxide sensor and of a device for determining a nitrogen oxide compound quantity upstream of an SCR catalytic converter in an exhaust-gas flow direction; determining a controlling deviation from the difference and a target value of a controlling element; determining a gradient of an integral controlling component; and identifying reducing agent slippage if the controlling deviation exceeds a first threshold value and the gradient exceeds a second threshold value. The method and a corresponding device make it possible to reliably identify reducing agent slippage so that a very fast controlling element can be used.Type: GrantFiled: January 5, 2015Date of Patent: November 22, 2016Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbHInventor: Peter Bauer
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Patent number: 9494083Abstract: Methods and systems are provided related to an emissions control system. The emissions control system has an exhaust after-treatment system defining a plurality of distinct exhaust flow passages through which at least a portion of an exhaust stream can flow, e.g., the exhaust stream is produced by an engine. The emissions control system also includes a controller for controlling injection of reductant into the exhaust stream flowing through each of the flow passages. In one example, the emissions control system is configured for use in a vehicle, such as a locomotive or other rail vehicle.Type: GrantFiled: December 21, 2010Date of Patent: November 15, 2016Assignee: General Electric CompanyInventors: Jessica Lynn Plummer, Gail LeRoy Detar, Shashi Kiran, Shridhar Shrikant Kulkarni, Lawrence Heverley, III
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Patent number: 9482141Abstract: A rapid cooling device for a motor vehicle including a motor vehicle component performing a first technical function of covering for a proximal surface opposite it, the vehicle component including a diffusion mechanism for performing a technical function of rapidly diffusing a liquid that has been injected toward the proximal surface opposite it, with a view to reducing a surface temperature of the proximal surface opposite it.Type: GrantFiled: March 1, 2013Date of Patent: November 1, 2016Assignee: RENAULT s.a.s.Inventors: Olivier Lagarrigue, David Grimault
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Patent number: 9482128Abstract: The invention relates to a method for regenerating nitrogen oxide storage catalytic converters and to a correspondingly adapted exhaust-gas purification system for lean-burn engines. In particular, the present invention relates to the regeneration of nitrogen oxide storage catalytic converters during special driving situations of the vehicle.Type: GrantFiled: May 9, 2012Date of Patent: November 1, 2016Assignee: UMICORE AG & CO. KGInventors: Stephan Eckhoff, Stefan Franoschek, Frank Adam
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Patent number: 9482137Abstract: A system includes an internal combustion engine providing exhaust gases to an exhaust conduit, an aftertreatment system having an SCR catalyst component and disposed in the exhaust conduit. The system further includes a first NH3 sensing element preferentially sensitive to NH3 and a second NH3 sensing element preferentially sensitive to NO2 in the exhaust conduit. Both NH3 sensing elements are positioned downstream of the SCR catalyst component. The system includes a controller having a test conditions module that determines whether an NO2 concentration downstream of the SCR catalyst component is below a threshold value, an NH3 diagnostic module that provides a detection comparison value in response to the NO2 concentration, a first signal from the first NH3 sensing element, and a second signal from the second NH3 sensing element. The controller includes a sensor condition module that provides an NH3 sensor condition value in response to the detection comparison value.Type: GrantFiled: December 3, 2012Date of Patent: November 1, 2016Assignee: Cummins Inc.Inventors: Feng Liu, Mert Geveci
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Patent number: 9481238Abstract: A crash-tolerant system arrangement in an engine compartment situated in the front end region of a motor vehicle includes an exhaust emission control system having an essentially cylindrical first catalytic converter housing situated in front of the exhaust gas turbocharger in the travel direction. The exhaust gas turbocharger is mechanically connected to an exhaust gas manifold via a first fastening device, and to an engine block via a second fastening device, the first and the second fastening devices being designed in such a way that a detachment of the connection of the exhaust gas turbocharger to the exhaust gas manifold and/or a detachment of the connection of the exhaust gas turbocharger to the engine block take(s) place within a predefined upper value range for the pressure force.Type: GrantFiled: May 7, 2013Date of Patent: November 1, 2016Assignee: Daimler AGInventors: Gerd Tiefenbacher, Roland Huss, Stefan Schaible, Peter Raitschev, Johannes Kipp, Georg Georgs, Gerd Duerr
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NOx sensor based output disablement in response to exhaust system high frequency pressure pulsations
Patent number: 9482136Abstract: Systems, methods and apparatus are disclosed for disabling control of one or more outputs of an internal combustion engine system in response to an engine-out NOx sensor during a high frequency pressure pulsation associated with the exhaust gas at the engine-out NOx sensor. A high frequency pressure pulsation event may be determined in response to a pressure sensor measurement, or in response to operating parameters of one or more components of the system indicating high torque output conditions, and/or by a blade position of a turbine adjacent the NOx sensor indicating passage of the exhaust gas pressure pulsations to the NOx sensor.Type: GrantFiled: March 4, 2014Date of Patent: November 1, 2016Assignee: CUMMINS INC.Inventors: Richard J. Ancimer, John Franklin Wright -
Patent number: 9476337Abstract: Two sets of assemblies are arranged such that a diesel particulate filter device of the assembly, a selective catalytic reduction device of the assembly, a selective catalytic reduction device of the assembly, and a diesel particulate filter device of the assembly are located next to each other in this order. Exhaust tubes are provided to extend upward from gas outlets of the selective catalytic reduction device of the assembly and the selective catalytic reduction device of the assembly. The two exhaust tubes are located on a virtual plane orthogonal to longitudinal directions of the selective catalytic reduction devices of the assemblies. Thereby, an air intake position for an engine can be easily set to a position from which exhaust gas from the engine is less likely to be taken in, in a configuration provided with two sets of assemblies.Type: GrantFiled: May 14, 2013Date of Patent: October 25, 2016Assignee: KOMATSU LTD.Inventors: Tsuyoshi Kobayashi, Katsuhiro Tsutsumi, Hirofumi Miyamoto
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Patent number: 9464546Abstract: The assembly for purification of exhaust gases comprises an upstream conduit and a downstream conduit positioned parallel to each other. A space has an exhaust gas inlet communicating with the upstream conduit and an exhaust gas outlet communicating with the downstream conduit. A middle line divides the inlet into first and second areas providing a same passage section to the exhaust gases. The assembly comprises a baffle covering at least 75% of the first area and covering less than 25% of the second area. The baffle and the space are laid out so that a portion of the exhaust gases penetrate through the first area of the inlet flows into the space along flow lines forming a cusp around the baffle.Type: GrantFiled: July 5, 2012Date of Patent: October 11, 2016Assignee: Faurecia Systemes D'EchappementInventors: Yohann Perrot, Jean-Paul Brunel
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Patent number: 9464554Abstract: In an exhaust gas purification system for an internal combustion engine provided with a filter supporting an SCR catalyst, the present invention is intended to suppress HC and CO from being discharged to the outside at the time of the execution of filter regeneration processing, and to carry out the filter regeneration processing in an efficient manner. In the present invention, a post-catalyst having an oxidation function is arranged in an exhaust passage at the downstream side of the filter. Then, when the temperature of the post-catalyst is lower than a predetermined activation temperature at the time the execution of the filter regeneration processing is requested, the temperature of the post-catalyst is raised by carrying out control of raising the temperature of the exhaust gas discharged from the internal combustion engine, and control increasing the flow rate of the exhaust gas, before the execution of the filter regeneration processing.Type: GrantFiled: December 3, 2012Date of Patent: October 11, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Junichi Matsuo, Nobumoto Ohashi, Shigeki Nakayama, Kenji Sakurai, Akira Mikami, Keishi Takada, Yoshihisa Tsukamoto, Hiroshi Otsuki, Ichiro Yamamoto
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Patent number: 9464549Abstract: An electrically heated catalyst device includes a catalyst support, a surface electrode disposed on an outer surface of the catalyst support and extending in an axis direction of the catalyst support, a wiring line member including a root section extending in the axis direction of the catalyst support and comb teeth-like wiring lines extending from the root section in a circumference direction of the catalyst support and fixed to the surface electrode, an outer cylinder covering an outer surface of the catalyst support, and a holding member holding the catalyst support and packed between the catalyst support and the outer cylinder, in which the catalyst support is heated by feeding a current through the surface electrode and the wiring line member. A slit extending from an outer edge in the circumferential direction of the catalyst support is formed in the root section of the wiring line member.Type: GrantFiled: February 25, 2015Date of Patent: October 11, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Nishigaya, Natsuki Sugiyama, Masao Nakayama, Yuki Tomitaka, Hideji Naito
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Patent number: 9458745Abstract: A method of purifying NOX contained in exhaust gas, the method including a first NOX purification method and a second NOX purification method, wherein the first NOX purification method and the second NOX purification method include injecting hydrocarbons into an exhaust gas passage at predetermined feed intervals, wherein in the first method, the injected hydrocarbons are partially oxidized and an air-fuel ratio flowing into an exhaust purification catalyst is lean, and in the second method, the injection of the hydrocarbons occurs at intervals longer than the predetermined feed intervals in the first method, and an air-fuel ratio is switched from lean to rich.Type: GrantFiled: July 2, 2013Date of Patent: October 4, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuki Bisaiji, Kohei Yoshida, Mikio Inoue
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Patent number: 9458754Abstract: An exhaust gas treatment system for an internal combustion engine may have a reductant delivery system with a controller that performs period diagnostics to determine whether there is a blockage in the reductant delivery system. The diagnostic procedure may include sampling first and second pressures at first and second operating conditions, respectively, and then comparing the first pressure differential between the first and second pressures with one or more threshold pressure differentials to determine whether system components such as a dosing line and an injector are at least partially blocked. If such a test is not conclusive, it may be repeated at a third and fourth operating conditions to provide a second pressure differential. The offset between the first and second pressure differentials may also be used to help diagnose where a blockage in the system resides.Type: GrantFiled: March 11, 2014Date of Patent: October 4, 2016Assignee: CUMMINS IP, INC.Inventors: David S. Everard, Roel Stas
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Patent number: 9458753Abstract: The present invention provides a diesel engine capable of preventing a PM accumulation amount from increasing excessively. If DOC inlet exhaust gas temperature (“IEGT”) does not reach a predetermined value T0, a control unit carries out air intake amount feedback control (“AIAFC”), and a target value of intake throttling is set to a predetermined air intake amount. If the DPF regenerating processing is not started even if elapsed time reaches a predetermined value t after AIAFC is started in a state where the DOC IEGT does not reach the predetermined value T0, the control unit changes AIAFC to exhaust gas temperature feedback control (“EGTFC”). In EGTFC, the control unit changes a target value of intake throttling to a predetermined DOC IEGT T0. If application of a load exceeding a predetermined amount is detected before the DOC IEGT reaches the predetermined value T0, the control unit returns EGTFC to AIAFC.Type: GrantFiled: September 5, 2014Date of Patent: October 4, 2016Assignee: KUBOTA CorporationInventors: Kentarou Kita, Tamotsu Kuno, Katsushi Inoue, Yuuji Takemura, Yuuki Ishii, Yusuke Komemushi, Tomoya Hasegawa
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Patent number: 9453445Abstract: An internal combustion is configured such that a hydrocarbon supply valve (15) and an exhaust gas purification catalyst (13) are arranged in an engine exhaust gas passage and such that NOx contained within exhaust gas is purified by spraying hydrocarbon from the hydrocarbon supply valve (15) at predetermined intervals. When SOx is to be released from the exhaust gas purification catalyst (13), the air-fuel ratio of exhaust gas which flows into the exhaust gas purification catalyst (13) is enriched by generating, within a cylinder, combustion gas having a rich air-fuel ratio, and after that the air-fuel ratio of exhaust gas which flows into the exhaust gas purification catalyst (13) is enriched by supplying hydrocarbon from the hydrocarbon supply valve (15).Type: GrantFiled: February 25, 2013Date of Patent: September 27, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventor: Teruhiko Miyake
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Patent number: 9453449Abstract: A method for controlling dosing of a diesel exhaust fluid includes providing a diesel engine and an exhaust system. The exhaust system includes an exhaust aftertreatment device and is coupled to the diesel engine. An injection device is provided in the exhaust system for dosing the diesel exhaust fluid into the exhaust system according to a predetermined routine. A water condensation content of the exhaust aftertreatment device is determined. A dosing event, directed by the predetermined routine, is precluded so that the injection device is not operated to provide diesel exhaust fluid to the exhaust aftertreatment device when the water condensation content of the exhaust aftertreatment device is determined to be above a specified threshold value.Type: GrantFiled: January 6, 2015Date of Patent: September 27, 2016Assignee: Robert Bosch GmbHInventors: Brent D. Keppy, Mark Casarella, Maria Dolores Marenco Jimenez
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Patent number: 9447756Abstract: An ambient air intake duct of a static gas turbine is provided, having at least one filter, which is arranged in the intake duct, for cleaning the ambient air (A) that can flow through the intake duct. A method for operating a static gas turbine which is equipped with a filter for cleaning the ambient air (A) is also provided. To rapidly provide a higher level of gas turbine power to a generator, it is provided that, by means of a bypass or by means of flaps arranged downstream of the filter, partially to completely unfiltered ambient air (A) can temporarily flow into the compressor inlet.Type: GrantFiled: July 13, 2012Date of Patent: September 20, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventor: Oliver Schneider
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Patent number: 9441567Abstract: To operate an internal combustion engine, a specified forced stimulation is applied to an air ratio as the basis for a target value of a lambda controller. In diagnostic operation, a diagnostic function is used to identify a probe error of the exhaust gas probe, and a value of the measurement signal is recorded as a start value in chronological correlation with an edge of the target value curve of the lambda controller and the current value of the measurement signal is recorded as an end value after a specified first time duration. The start and end values are used to determine whether a filter error or a dead time error of the exhaust gas probe exists. The first time duration is specified such that start value/end value difference for a filter error differs start value/end value difference for a dead time error by at least a specified difference value.Type: GrantFiled: September 27, 2012Date of Patent: September 13, 2016Assignee: CONTINENTAL AUTOMOTIVE GMBHInventors: Harsha Mahaveera, Tino Arlt