Patents by Inventor Jan Krüger
Jan Krüger 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: 11583815Abstract: A process for adjusting filling level in a gasifier for carbonaceous material in the form of a floating bed reactor in which biomass and/or coke (K) is transformed into a product gas includes providing a substantially conical, downwardly tapering floating bed reactor comprising an upper reactor ceiling a lower inlet opening into which biomass and/or coke (K) are introduced into the floating bed reactor from below and a gaseous gasification agent (V) is introduced upwardly, so that a fixed bed, which is elevated from the location of the inlet opening and held in suspension, forms within the conical reactor, wherein the flow rate of the gaseous gasification agent (V) together with the biomass and/or the coke (K) is adapted in such a way that a stable bed forms in the reactor.Type: GrantFiled: November 9, 2020Date of Patent: February 21, 2023Assignee: SYNCRAFT ENGINEERING GMBHInventors: Marcel Huber, Jan Krueger, Georg Kreutner
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Publication number: 20210138419Abstract: A process for adjusting filling level in a gasifier for carbonaceous material in the form of a floating bed reactor in which biomass and/or coke (K) is transformed into a product gas, includes providing a substantially conical, downwardly tapering floating bed reactor comprising an upper reactor ceiling and a lower inlet opening into which biomass and/or coke (K) are introduced into the floating bed reactor from below and a gaseous gasification agent (V) is introduced upwardly, so that a fixed bed, which is elevated from the location of the inlet opening and held in suspension, forms within the conical reactor, wherein the flow rate of the gaseous gasification agent (V) together with the biomass and/or the coke (K) is adapted in such a way that a stable bed forms in the reactor.Type: ApplicationFiled: November 9, 2020Publication date: May 13, 2021Inventors: Marcel Huber, Jan Krueger, Georg Kreutner
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Patent number: 10655520Abstract: An exhaust system for an internal combustion engine, especially in a vehicle, comprising at least one first catalytic converter unit (18) with at least one catalytic converter device (24), through which internal combustion engine exhaust gas can flow and a fuel-operated heater (36). The at least one first catalytic converter unit (18) comprises a heat exchanger volume (50) through which heater exhaust gas leaving the heater (36) can flow.Type: GrantFiled: August 9, 2018Date of Patent: May 19, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Jan Krüger, Günter Eberspach
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Patent number: 10465587Abstract: A muffler for an exhaust system of an internal combustion engine, especially for vehicles with hybrid drive, includes a muffler housing (12), a heat exchanger unit (48), arranged in the muffler housing (12), for transferring heat from combustion exhaust gas to a heat transfer medium, an inlet pipe (38), a first outlet pipe (52) and a second outlet pipe (40). A first exhaust gas flow path (54), in the muffler housing, routs exhaust gas through the heat exchanger unit (48) to the first outlet pipe (52). A second exhaust gas flow path (56), in the muffler housing, routs exhaust gas to a second outlet pipe (40), bypassing the heat exchanger unit (48). A flow path blocking/releasing device (58) for blocking and releasing at least one exhaust gas flow path (54, 56), of the first exhaust gas flow path (54) and of the second exhaust gas flow path (56).Type: GrantFiled: May 22, 2017Date of Patent: November 5, 2019Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KGInventors: Jan Krüger, Gerd Gaiser
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Publication number: 20190055870Abstract: An exhaust system for an internal combustion engine, especially in a vehicle, comprising at least one first catalytic converter unit (18) with at least one catalytic converter device (24), through which internal combustion engine exhaust gas can flow and a fuel-operated heater (36). The at least one first catalytic converter unit (18) comprises a heat exchanger volume (50) through which heater exhaust gas leaving the heater (36) can flow.Type: ApplicationFiled: August 9, 2018Publication date: February 21, 2019Inventors: Jan Krüger, Günter Eberspach
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Patent number: 9997152Abstract: A sound generator (100) mounts on a vehicle to manipulate vehicle noise originating from a vehicle operated by an internal combustion engine. The sound generator (100) includes a casing (110), a loudspeaker (120), and at least one pressure compensation valve (130). The loudspeaker (120) and the casing (110) together thereby enclose a volume (115). Further, the pressure compensation valve (130) couples the volume (115) enclosed by the loudspeaker (120) and the casing to an outside of the casing (110). The pressure compensation valve (130) thereby extends through a plane in which the loudspeaker (120) is located. A system (200) for manipulating sound waves propagating through exhaust systems of vehicles driven by an internal combustion engine uses the above sound generator (100).Type: GrantFiled: November 2, 2016Date of Patent: June 12, 2018Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Manfred Nicolai, Thomas Schmidt, Jan Krüger
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Publication number: 20170335741Abstract: A muffler for an exhaust system of an internal combustion engine, especially for vehicles with hybrid drive, includes a muffler housing (12), a heat exchanger unit (48), arranged in the muffler housing (12), for transferring heat from combustion exhaust gas to a heat transfer medium, an inlet pipe (38), a first outlet pipe (52) and a second outlet pipe (40). A first exhaust gas flow path (54), in the muffler housing, routs exhaust gas through the heat exchanger unit (48) to the first outlet pipe (52). A second exhaust gas flow path (56), in the muffler housing, routs exhaust gas to a second outlet pipe (40), bypassing the heat exchanger unit (48). A flow path blocking/releasing device (58) for blocking and releasing at least one exhaust gas flow path (54, 56), of the first exhaust gas flow path (54) and of the second exhaust gas flow path (56).Type: ApplicationFiled: May 22, 2017Publication date: November 23, 2017Inventors: Jan KRÜGER, Gerd GAISER
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Patent number: 9759105Abstract: An exhaust gas stream for an internal combustion engine includes a muffler housing (12) with a first chamber (14) and a second chamber (16). An exhaust gas inlet (24) has a first chamber opening area (30) and a second chamber opening area (32). An exhaust gas outlet (36) is open in an outlet opening area (42) towards the first chamber. A connection opening (50) is provided between the first chamber and the second chamber and has an exhaust valve arrangement associated therewith, including a valve element (56) including a closing area (58) closing the connection opening in a closed position of the exhaust valve arrangement (52). The exhaust valve arrangement includes an actuating area (64) associated with the inlet second opening area for generating an actuating force acting on the exhaust valve arrangement, moving from the closed position in the direction of an open position by exhaust gas bypass flow.Type: GrantFiled: June 24, 2016Date of Patent: September 12, 2017Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Jan Krüger, Georg Wirth
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Publication number: 20170133003Abstract: A sound generator (100) mounts on a vehicle to manipulate vehicle noise originating from a vehicle operated by an internal combustion engine. The sound generator (100) includes a casing (110), a loudspeaker (120), and at least one pressure compensation valve (130). The loudspeaker (120) and the casing (110) together thereby enclose a volume (115). Further, the pressure compensation valve (130) couples the volume (115) enclosed by the loudspeaker (120) and the casing to an outside of the casing (110). The pressure compensation valve (130) thereby extends through a plane in which the loudspeaker (120) is located. A system (200) for manipulating sound waves propagating through exhaust systems of vehicles driven by an internal combustion engine uses the above sound generator (100).Type: ApplicationFiled: November 2, 2016Publication date: May 11, 2017Inventors: Manfred NICOLAI, Thomas SCHMIDT, Jan KRÜGER
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Publication number: 20160376953Abstract: An exhaust gas stream for an internal combustion engine includes a muffler housing (12) with a first chamber (14) and a second chamber (16). An exhaust gas inlet (24) has a first chamber opening area (30) and a second chamber opening area (32). An exhaust gas outlet (36) is open in an outlet opening area (42) towards the first chamber. A connection opening (50) is provided between the first chamber and the second chamber and has an exhaust valve arrangement associated therewith, including a valve element (56) including a closing area (58) closing the connection opening in a closed position of the exhaust valve arrangement (52). The exhaust valve arrangement includes an actuating area (64) associated with the inlet second opening area for generating an actuating force acting on the exhaust valve arrangement, moving from the closed position in the direction of an open position by exhaust gas bypass flow.Type: ApplicationFiled: June 24, 2016Publication date: December 29, 2016Inventors: Jan KRÜGER, Georg WIRTH
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Patent number: 9374632Abstract: A sound generator for influencing sound waves propagating in exhaust or intake systems of combustion engine driven vehicles includes: an enclosure having a port opening for communication with an exhaust and/or intake system; a loudspeaker basket supported by the enclosure; a membrane and a permanent magnet supported by the loudspeaker basket; and a voice coil supported by a voice coil carrier. The voice coil is disposed in a constant magnetic field created by the permanent magnet and is connected to the membrane. The membrane is located between the port opening and the permanent magnet. The membrane is funnel-like or dome-like, with the top or top face of the funnel-like membrane or the geometric center of the dome-like membrane facing away from the permanent magnet. An anti-noise system using the sound generator, and a vehicle using the anti-noise system are also provided.Type: GrantFiled: May 7, 2014Date of Patent: June 21, 2016Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Jan Krueger, Manfred Nicolai
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Patent number: 9206717Abstract: The present invention relates to an active sound absorber (3) for an exhaust system (1) of an internal combustion engine, preferably of a motor vehicle, comprising a housing (7), a connecting pipe (8) for the acoustic and fluidic connecting of the housing (7) with the exhaust system (1), an active membrane (10) which in the housing (7) separates a front volume (12), fluidically connected with the connecting pipe (8), from a back volume (13), and an actuator (11) for vibration stimulation of the active membrane (10). A risk of damage by condensate in the back volume (13) can be reduced by at least one condensation line (14), which fluidically connects the back volume (13) with the front volume (12), in which vapor contained in the exhaust gas condenses, and which directs the condensate which occurs to the front volume (12).Type: GrantFiled: October 11, 2012Date of Patent: December 8, 2015Assignee: Eberspaecher Exhaust Technology GmbH & Co. KGInventors: Jan Krüger, Manfred Nicolai, Michael Pommerer, Georg Wirth
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Patent number: 8894132Abstract: A three-dimensionally shaped body module component and a method for the production thereof, which is assembled from a plurality of body module segments (1). The body module segments (1) are sections of continuously pultruded fiber plastic composite pultrudates, wherein each pultrudate has a basic structure consisting of endless fibers (20) laid in accordance with the force flux with respect to a predetermined geometry of the component. Furthermore, the basic structure has at least one passage (30) per body module segment (1) for receiving a connecting means (11), so as to connect at least two of the body module segments (1). The fibers (20) laid in accordance with the force flux are laid around the passage (30), and, furthermore, a stabilization structure (40) made from fibers is arranged around it.Type: GrantFiled: November 22, 2011Date of Patent: November 25, 2014Assignee: Daimler AGInventors: Stephan Goettker, Jan Krueger, Asmir Salkic, Mirko Sretenovic
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Publication number: 20140334633Abstract: A sound generator for influencing sound waves propagating in exhaust or intake systems of combustion engine driven vehicles includes: an enclosure having a port opening for communication with an exhaust and/or intake system; a loudspeaker basket supported by the enclosure; a membrane and a permanent magnet supported by the loudspeaker basket; and a voice coil supported by a voice coil carrier. The voice coil is disposed in a constant magnetic field created by the permanent magnet and is connected to the membrane. The membrane is located between the port opening and the permanent magnet. The membrane is funnel-like or dome-like, with the top or top face of the funnel-like membrane or the geometric center of the dome-like membrane facing away from the permanent magnet. An anti-noise system using the sound generator, and a vehicle using the anti-noise system are also provided.Type: ApplicationFiled: May 7, 2014Publication date: November 13, 2014Applicant: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Jan KRUEGER, Manfred NICOLAI
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Publication number: 20140321659Abstract: A system (7), for influencing noises of a vehicle, includes a controller (9) and at least one connected loudspeaker (2) that generates noise inside a sound generator (3) in response to a control signal. The controller includes a microprocessor (91; 91?), a digital-to-analog converter (92), an amplifier (93), and a step-up converter (97). The microprocessor generates a digital control signal, to generate a noise to cancel noise inside an exhaust system and/or an intake system and/or to generate a noise inside an engine compartment. The digital control signal is converted by the digital-to-analog converter into an analog control signal. The amplifier amplifies the analog control signal output from the digital-to-analog converter. The step-up converter is connected to an automobile battery (10) of the vehicle and converts a battery voltage (VBATT) supplied by the automobile battery to a constant value, with this output as a supply voltage (VB) to the amplifier.Type: ApplicationFiled: April 24, 2014Publication date: October 30, 2014Applicant: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Federico BUGANZA, Selcuk SERBETCI, Jan KRUEGER
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Patent number: 8857411Abstract: The present invention relates to a method for operating a piston engine, more preferably of a motor vehicle, with a fresh air system for feeding fresh air to cylinders of the piston engine and with an exhaust system for discharging exhaust gas from the cylinders, wherein during a gas exchange by a positive pressure wave on the fresh air side the charging of the respective cylinder with fresh air and/or by a negative pressure wave on the exhaust gas side the discharging of exhaust gas from the respective cylinder is supported. An increased variability is obtained if the respective pressure wave is generated by at least one electroacoustic converter.Type: GrantFiled: April 28, 2011Date of Patent: October 14, 2014Assignee: J. Eberspaecher GmbH & Co. KGInventors: Jan Krüger, Rolf Jebasinski
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Publication number: 20140021747Abstract: A three-dimensionally shaped body module component and a method for the production thereof, which is assembled from a plurality of body module segments (1). The body module segments (1) are sections of continuously pultruded fibre plastic composite pultrudates, wherein each pultrudate has a basic structure consisting of endless fibres (20) laid in accordance with the force flux with respect to a predetermined geometry of the component. Furthermore, the basic structure has at least one passage (30) per body module segment (1) for receiving a connecting means (11), so as to connect at least two of the body module segments (1). The fibres (20) laid in accordance with the force flux are laid around the passage (30), and, furthermore, a stabilisation structure (40) made from fibres is arranged around it.Type: ApplicationFiled: November 22, 2011Publication date: January 23, 2014Applicant: Daimler AGInventors: Stephan Goettker, Jan Krueger, Asmir Salkic, Mirko Sretenovic
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Patent number: 8490745Abstract: An exhaust system component (1) of an exhaust system (2) for an internal combustion engine, especially of a motor vehicle has an inner pipe (3) made of metal, which is exposed to exhaust gas during the operation of the exhaust system (2), a housing (4) made of plastic, which encloses a working space (6), and an outer pipe (5) made of metal. The outer pipe (5) is fastened at a first end area (7) to the inner pipe (3) and is rigidly connected at a second end area (9) to the housing (4) and encloses between these end areas (7, 9) an annular space (10) formed radially between the inner pipe (3) and outer pipe (5).Type: GrantFiled: May 10, 2012Date of Patent: July 23, 2013Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Georg Wirth, Jan Krüger
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Patent number: 8360192Abstract: An exhaust system (3) for an internal combustion engine (2), especially of a motor vehicle (1), is provided with at least one exhaust pipe (10), which carries an exhaust gas flow (11) away from the internal combustion engine (2) during the operation of the internal combustion engine (2). An active exhaust muffler (12) is provided with a housing (13) that is acoustically connected to the exhaust pipe (10) via a connection pipe (15). Damage to the exhaust muffler (12) is avoided by actively and/or passively cooling the connection pipe (15).Type: GrantFiled: June 28, 2010Date of Patent: January 29, 2013Assignee: J. Eberspächer GmbH & Co. KGInventors: Jan Krüger, Manfred Nicolai
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Publication number: 20120285766Abstract: An exhaust system component (1) of an exhaust system (2) for an internal combustion engine, especially of a motor vehicle has an inner pipe (3) made of metal, which is exposed to exhaust gas during the operation of the exhaust system (2), a housing (4) made of plastic, which encloses a working space (6), and an outer pipe (5) made of metal. The outer pipe (5) is fastened at a first end area (7) to the inner pipe (3) and is rigidly connected at a second end area (9) to the housing (4) and encloses between these end areas (7, 9) an annular space (10) formed radially between the inner pipe (3) and outer pipe (5).Type: ApplicationFiled: May 10, 2012Publication date: November 15, 2012Inventors: Georg WIRTH, Jan Krüger