Patents Assigned to Deutz Aktiengesellschaft
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Patent number: 10040343Abstract: A hybrid system, consisting of an internal combustion engine (1) with added-on and/or integrated hydraulic pumps (2) to supply consumers (5) and/or the drive unit (12), at least one engine control unit (3) for electronic engine regulation and/or fuel-injection regulation, at least one hydraulic control unit (4) to control at least one hydraulic consumer (5), at least one pressure sustaining valve (6), at least one reversing valve (7) and at least one hydraulic pressure accumulator (8).Type: GrantFiled: March 2, 2013Date of Patent: August 7, 2018Assignee: DEUTZ AKTIENGESELLSCHAFTInventors: Ralf Kochhan, Taghi Akbarian
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Patent number: 9897048Abstract: An internal combustion engine having a crankcase and a cylinder head is provided. The internal combustion engine includes at least one cylinder block, at least one cooler, at least one smooth flange surface for accommodating the at least one cooler, at least one coolant inlet to the cooler, at least one coolant outlet from the cooler, at least one exhaust gas inlet to the cooler, at least one integrated exhaust gas feed-through from the cooler and at least one internal cooling section.Type: GrantFiled: March 24, 2016Date of Patent: February 20, 2018Assignee: Deutz AktiengesellschaftInventors: Joachim Joisten-Pieritz, Xenia Smolenzev, Peter Kipke, Toni Kleinschmidt, Marco Jung, Tobias Kurt, Peter Hoffmann, Paul Schwabauer, Gerhard Knaps, Ralf Blum
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Patent number: 9821272Abstract: A device and a method for reducing carbon monoxide, hydrocarbons, nitrogen oxides and soot particles present in the exhaust gases of diesel engines are provided. The device includes 1) a diesel oxidation catalyst for the oxidation of carbon monoxide, hydrocarbons and nitrogen monoxide; 2) a first unit by means of which ammonia and/or a compound that breaks down to form ammonia can be metered into the exhaust gas that is to be purified; 3) a catalytically activated particulate filter, containing a wall-flow filter substrate comprising a catalytically active material that promotes the selective catalytic reduction of nitrogen oxides to form nitrogen; 4) a second unit by means of which ammonia and/or a compound that breaks down to form ammonia can be metered into the exhaust gas that is to be purified; as well as 5) a catalyst for the selective catalytic reduction of nitrogen oxides to form nitrogen.Type: GrantFiled: November 16, 2012Date of Patent: November 21, 2017Assignee: Deutz AktiengesellschaftInventors: Stephan Schraml, Meike Wittrock, Markus Mueller
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Patent number: 9695775Abstract: An internal combustion engine is provided. The internal combustion engine includes at least one cylinder head and at least one exhaust pipe having at least one flange, whereby the flange has at least two flange fastening holes that have at least two fastening screws for fastening the exhaust pipe to the cylinder head of the internal combustion engine, whereby the exhaust pipe can be arranged so as to be connected to the cylinder head by means of the fastening screws in such a way that it can be dismantled, whereby at least one centering device is provided essentially in the area of the flange holes.Type: GrantFiled: June 14, 2013Date of Patent: July 4, 2017Assignee: DEUTZ AktiengesellschaftInventors: Jürgen Darscheidt, Wilhelm Feuser, Harald Reuter, Robert Schumacher
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Patent number: 9656210Abstract: An internal combustion engine, including at least one exhaust-gas line having at least one device for the after-treatment of the exhaust gas and at least one urea-water solution tank, whereby the urea-water solution tank 3 is located close to the engine, is provided.Type: GrantFiled: February 13, 2015Date of Patent: May 23, 2017Assignee: Deutz AktiengesellschaftInventors: Meike Wittrock, Ulf Klein, Gerald Leyh
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Patent number: 9561470Abstract: A method in which the exhaust gas that is to be purified is passed through an exhaust-gas line containing a diesel oxidation catalyst (DOC) for the oxidation of residual gaseous hydrocarbons (HC) and carbon monoxide (CO) in order to form carbon dioxide (CO2) and for the at least proportional oxidation of the nitrogen monoxide (NO) contained in the exhaust gas in order to form nitrogen dioxide (NO2) is provided.Type: GrantFiled: February 13, 2015Date of Patent: February 7, 2017Assignee: Deutz AktiengesellschaftInventors: Meike Wittrock, Ulf Klein, Gerald Leyh
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Patent number: 9133766Abstract: An internal combustion engine including at least one cylinder, at least one in-block camshaft, at least one overhead intake valve and at least one overhead exhaust valve, as well as at least one rocker arm bracket per cylinder, the rocker arm bracket having an in particular tubular shaft on which are mounted at least one exhaust rocker arm and at least one intake rocker arm.Type: GrantFiled: September 29, 2011Date of Patent: September 15, 2015Assignee: Deutz AktiengesellschaftInventors: Wolfgang Strusch, Heinz Wieland, Martin Schneider, Ralph Oberzier
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Patent number: 9061245Abstract: An exhaust gas aftertreatment system, in particular for V-type diesel engines, is provided. The system includes, disposed in the exhaust line of the engine in the direction of the exhaust gas flow, a first SCR stage, a catalytically activated particulate filter (cDPF), a second SCR stage, and an ammonia slip catalyst (ASC). A method for purifying diesel engine exhaust gases containing hydrocarbons, carbon monoxide, soot particles, and nitrogen oxides consisting of NO and NO2 is also provided.Type: GrantFiled: July 10, 2014Date of Patent: June 23, 2015Assignee: Deutz AktiengesellschaftInventors: Meike Wittrock, Wolfgang Beberdick
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Patent number: 8991369Abstract: A device for cooled recirculation of exhaust gas of an internal combustion engine charged with the aid of an exhaust gas turbocharger, the internal combustion engine having a fresh gas system and an exhaust gas system, which are connected to a two-stage exhaust gas cooler via an exhaust gas recirculation line. A device by way of which a sufficient amount of exhaust gas may be recirculated by simple means is provided. This is achieved in that exhaust gas recirculation line 8a, 8b is connected to an exhaust gas collecting line 7a, 7b of the exhaust gas system upstream from turbine 6 of exhaust gas turbocharger 5 in the direction of flow, an exhaust gas recirculation valve 9a, 9b being connected upstream from first stage 10a, 10b of the exhaust gas cooler in exhaust gas recirculation line 8a, 8b, and a nonreturn valve 11a, 11b is inserted into a continuation line 12a, 12b leading to the second stage of the exhaust gas cooler.Type: GrantFiled: September 30, 2009Date of Patent: March 31, 2015Assignee: Deutz AktiengesellschaftInventor: Bernd Huelsmann
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Patent number: 8985155Abstract: A pipe, in particular in the air supply system of internal combustion engines which are provided, in particular, with an intake system and/or control electronics, is described, wherein the internal pipe and/or the internal pipe surface (1) have/has at least one element (1, 5, 6) which changes the diameter (2) of the internal pipe and/or the cross-sectional area of the internal pipe.Type: GrantFiled: August 10, 2011Date of Patent: March 24, 2015Assignee: Deutz AktiengesellschaftInventors: Florian Loschitz, Martin Klein, Martin Hielscher
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Patent number: 8935916Abstract: A method for the operation of a particulate filter system for an internal combustion engine wherein an. An exhaust gas stream enters a housing via a gas inlet opening. The housing receives a particulate filter, the stream flows into crude gas ducts connected to the gas inlet opening, and the stream can flow out of the particulate filter via clean gas ducts that are in fluid connection with a gas outlet opening, and are separated from the crude gas ducts. The crude gas ducts are connected to a connecting space in the direction of flow, and the connecting space has an exhaust port controlled by a closing mechanism. According to the invention, a method for operating an open particulate filter system is provided, by which the degree of separation of the soot particles from the exhaust gas can be increased.Type: GrantFiled: December 9, 2009Date of Patent: January 20, 2015Assignee: Deutz AktiengesellschaftInventors: Rolf Miebach, Stephan Schraml, Bernhard Hoffschmidt, Daniel Gonsior, Fabian Holzheid
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Patent number: 8844275Abstract: An exhaust-gas aftertreatment system, having a catalytic converter and/or particle filter which are/is assigned a burner arranged upstream in an exhaust line, to which burner fuel can be supplied via a fuel nozzle device and also combustion air can be supplied, and wherein the combustion air and the fuel emerging from the fuel nozzle device are mixed in a downstream air swirl vaporizer nozzle. An exhaust-gas aftertreatment system having a burner which operates reliably with a compact design and in which the supplied energy for operating the burner is reduced in relation to known systems. The fuel nozzle device has a nozzle body which extends at least from an inlet to an outlet and which has arranged therein a support body, which nozzle body and support body together produce a film-forming fuel supply duct.Type: GrantFiled: May 8, 2009Date of Patent: September 30, 2014Assignee: Deutz AktiengesellschaftInventors: Rolf Miebach, Peter Broll, Stephan Schraml
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Patent number: 8800266Abstract: A method for exhaust gas recirculation (EGR), in particular in internal combustion engines, in particular for reducing NOx emission, by actuating an EGR valve (2) and/or a throttle flap (3), characterized in that during a predetermined period of time after determining an NOx value of the values for actuating the EGR valve (2) and/or the throttle flap (3) a mathematical model is employed, in which the currently determined NOx values, the period of time elapsed since completing the NOx measurement and the parameters relevant for the NOx reduction of the internal combustion engine (1) are included.Type: GrantFiled: December 17, 2010Date of Patent: August 12, 2014Assignee: DEUTZ AktiengesellschaftInventor: Andreas Friesen
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Publication number: 20130239916Abstract: An internal combustion engine including at least one cylinder, at least one in-block camshaft, at least one overhead intake valve and at least one overhead exhaust valve, as well as at least one rocker arm bracket per cylinder, the rocker arm bracket having an in particular tubular shaft on which are mounted at least one exhaust rocker arm and at least one intake rocker arm.Type: ApplicationFiled: September 29, 2011Publication date: September 19, 2013Applicant: DEUTZ AKTIENGESELLSCHAFTInventors: Wolfgang Strusch, Heinz Wieland, Martin Schneider, Ralph Oberzier
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Publication number: 20130180613Abstract: A pipe, in particular in the air supply system of internal combustion engines which are provided, in particular, with an intake system and/or control electronics, is described, wherein the internal pipe and/or the internal pipe surface (1) have/has at least one element (1, 5, 6) which changes the diameter (2) of the internal pipe and/or the cross-sectional area of the internal pipe.Type: ApplicationFiled: August 10, 2011Publication date: July 18, 2013Applicant: DEUTZ AKTIENGESELLSCHAFTInventors: Florian Loschitz, Martin Klein, Martin Hielscher
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Patent number: 8484954Abstract: A method and a device for selectively purifying the exhaust gas of an internal combustion engine using a selective catalytic reduction (SCR) catalytic converter (2), wherein a reducing agent is metered to the exhaust gas prior to entry into the SCR catalytic converter (2). An overdose of the reducing agent is added to the exhaust gas, and the exhaust gas, after exiting the SCR catalytic converter, is fed in part through an oxidation catalytic converter (5) and in part to a second SCR catalytic converter (8) via a bypass (6) circumventing the oxidation catalytic converter. In the oxidation catalytic converter (5), one half of the excess NH3 flowing out of the first SCR catalytic converter (2) is converted to NOx and reacts to form non-hazardous nitrogen after mixing with the other half of the excess NH3 flowing unchanged through a bypass.Type: GrantFiled: May 16, 2009Date of Patent: July 16, 2013Assignee: DEUTZ AktiengesellschaftInventor: Hans Walter Knuth
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Patent number: 8372364Abstract: An exhaust gas post treatment system for, in particular, a self-igniting internal combustion engine including a catalytic converter that is arranged in an exhaust gas line, a fine particle filter and an introduction device for a reduction agent arranged upstream of the catalytic converter in the direction of the flow of the exhaust gas, and to a method for operating said type of exhaust gas post treatment system. An exhaust gas post treatment system and a method for operating said type of system that is simple to use and compact. This is achieved by virtue of the fact that the catalytic converter is a reductively or oxidatively operated catalytic converter, or that the introduction device, the catalytic converter, that can be operated reductively or oxidatively, and the fine particle filter are arranged in said sequence and in the exhaust line in the direction of flow.Type: GrantFiled: August 20, 2009Date of Patent: February 12, 2013Assignee: Deutz AktiengesellschaftInventors: Peter Broll, Markus Mueller
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Publication number: 20120279202Abstract: A method for exhaust gas recirculation (EGR), in particular in internal combustion engines, in particular for reducing NOx emission, by actuating an EGR valve (2) and/or a throttle flap (3), characterized in that during a predetermined period of time after determining an NOx value of the values for actuating the EGR valve (2) and/or the throttle flap (3) a mathematical model is employed, in which the currently determined NOx values, the period of time elapsed since completing the NOx measurement and the parameters relevant for the NOx reduction of the internal combustion engine (1) are included.Type: ApplicationFiled: December 17, 2010Publication date: November 8, 2012Applicant: Deutz AktiengesellschaftInventor: Andreas Friesen
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Publication number: 20110283679Abstract: A method for the operation of a particulate filter system for an internal combustion engine wherein an. An exhaust gas stream enters a housing via a gas inlet opening. The housing receives a particulate filter, the stream flows into crude gas ducts connected to the gas inlet opening, and the stream can flow out of the particulate filter via clean gas ducts that are in fluid connection with a gas outlet opening, and are separated from the crude gas ducts. The crude gas ducts are connected to a connecting space in the direction of flow, and the connecting space has an exhaust port controlled by a closing mechanism. According to the invention, a method for operating an open particulate filter system is provided, by which the degree of separation of the soot particles from the exhaust gas can be increased.Type: ApplicationFiled: December 9, 2009Publication date: November 24, 2011Applicant: DEUTZ AktiengesellschaftInventors: Rolf Miebach, Stephan Schraml, Bernhard Hoffschmidt, Daniel Gonsior, Fabian Holzheid
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Publication number: 20110182789Abstract: An exhaust gas post treatment system for, in particular, a self-igniting internal combustion engine including a catalytic converter that is arranged in an exhaust gas line, a fine particle filter and an introduction device for a reduction agent arranged upstream of the catalytic converter in the direction of the flow of the exhaust gas, and to a method for operating said type of exhaust gas post treatment system. An exhaust gas post treatment system and a method for operating said type of system that is simple to use and compact. This is achieved by virtue of the fact that the catalytic converter is a reductively or oxidatively operated catalytic converter, or that the introduction device, the catalytic converter, that can be operated reductively or oxidatively, and the fine particle filter are arranged in said sequence and in the exhaust line in the direction of flow.Type: ApplicationFiled: August 20, 2009Publication date: July 28, 2011Applicant: Deutz AktiengesellschaftInventor: Peter Broll