Patents Assigned to Eberspächer Exhaust Technology GmbH
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Patent number: 11110408Abstract: A mixer for an exhaust system of an internal combustion engine includes a plate-shaped mixer body (26) with an incoming flow side (36) to be arranged oriented in the upstream direction in relation to an exhaust gas flow (HA1) and with an outflow side (38) to be arranged oriented in the downstream direction in relation to the exhaust gas flow (HA1), a first exhaust gas flow-through opening (30) in the mixer body (26), a reactant-receiving body (42) carried on the mixer body (26) in the area of the first exhaust gas flow-through opening (30), as well as a plurality of second exhaust gas flow-through openings (34) in the mixer body (26). The second exhaust gas flow-through openings (34) are arranged surrounding the first exhaust gas flow-through opening (30) in the mixer body (26).Type: GrantFiled: April 14, 2020Date of Patent: September 7, 2021Assignee: Eberspächer Exhaust Technology GmbHInventors: Enver Kurpejovic, Ruben Hass, Roland Schwarz, Adam Karch, Elke Preisser
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Patent number: 11105275Abstract: A regulating flap, especially exhaust flap for the exhaust gas stream of an internal combustion engine, includes a flap body (12), a flap diaphragm (16) carried on a pivot shaft (14) that is rotatable about a pivot axis (S) in the interior of the flap body (12). A pivot drive (20) has a drive element (30) to be coupled with the pivot shaft (14). A fixing device (40) fixes the pivot drive (20) in relation to the flap body (12). The fixing device (40) includes a bayonet fastener (38).Type: GrantFiled: November 23, 2018Date of Patent: August 31, 2021Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KGInventors: Annika Zeumer, Steffen Schmitt, Alexander Lermer, Domenic Binder, Thomas Faller, Andreas Kaiser
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Patent number: 11015507Abstract: An internal combustion engine, exhaust system, exhaust gas/reactant mixing assembly unit includes an inlet area (14) of an exhaust gas flow duct (12) and a reactant release device (20) releasing reactant (R) into exhaust gas (A) flowing in the exhaust gas flow duct. The exhaust gas flow duct includes a mixing section (16) with a first mixing section segment (22) downstream of the reactant release device (20). An exhaust gas/reactant mixture flows in the first mixing section segment essentially in a main flow direction (H1)—from the reactant release device to a deflection area. A ring-shaped second mixing section segment (28) surrounds the first mixing section segment. The exhaust gas/reactant mixture flows in the second mixing section segment (28) in a second main flow direction (H2), essentially opposite the first main flow direction, from the deflection area (26) to an outlet area (34) of the exhaust gas flow duct (12).Type: GrantFiled: October 15, 2018Date of Patent: May 25, 2021Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventor: Gerd Gaiser
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Patent number: 11008912Abstract: An exhaust gas heating unit for an exhaust system of an internal combustion engine includes a jacket heating conductor element (12) including a jacket (16) and with an electrical heating conductor (14), which extends in the jacket and is enclosed by insulating material (18). A heat transfer surface formation (20) is arranged on, and in heat transfer contact with, an outer side of the jacket. The heat transfer surface formation includes a heat transfer element with a meandering extent along the jacket heating conductor element with a plurality of heat transfer element sections (32), which pass over into one another in bent areas (30) and are arranged following one another in a longitudinal direction of the jacket heating conductor element. Each heat transfer element section in association with the jacket heating conductor element has a passage opening (34), through which the jacket heating conductor element passes.Type: GrantFiled: March 16, 2020Date of Patent: May 18, 2021Assignee: Eberspächer Exhaust Technology GmbHInventor: Gerd Gaiser
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Patent number: 11002169Abstract: A process for manufacturing an exhaust system for an internal combustion engine includes the steps: a) providing at least one exhaust gas-carrying component (12, 18) for the exhaust system (10); b) applying a basic material layer (24, 26) to at least one area of a surface of at least one of the exhaust gas-carrying components (12, 16) in a high-temperature application process; and c) applying a catalytically active material layer (28, 30) to the basic material layer (24, 26) in a low-temperature application process.Type: GrantFiled: September 25, 2018Date of Patent: May 11, 2021Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Gerd Gaiser, Bernd Weller
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Patent number: 10962446Abstract: A housing connection element (10) for a housing of an exhaust gas treatment assembly unit of an exhaust system, especially for an internal combustion engine, includes a first housing part (16) with an essentially cylindrical first connection area (18) for connection to a circumferential wall (14) of a housing (12) of an exhaust gas treatment assembly unit. A tapered area (20) is adjacent to the first connection area (18). An annular, second housing part (40) is connected to the tapered area (20). A second connection area (46) is provided for connection to an exhaust gas-carrying component of an exhaust system. At least one sensor sleeve (48, 50) is in a sleeve receiving area (24) of the first housing part (16). The sleeve receiving area (24) is formed in the tapered area (20).Type: GrantFiled: November 30, 2018Date of Patent: March 30, 2021Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Matthias Scheer, Christoph Buckermann
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Patent number: 10961896Abstract: A method provides for manufacturing a flap carrier for an exhaust gas flap, especially for the exhaust gas stream of an internal combustion engine. The method includes providing a flap housing (50) and providing a stop ring (48). The stop ring (48) is inserted into the flap housing (50) in a position corresponding to an installed position. The stop ring (48) is fixed to the flap housing (50). Subsequently to fixing the stop ring (48) to the flap housing (50), at least one shaft opening (60, 62) for a pivot shaft carrying a flap diaphragm with at least one flap wing is inserted into the stop ring (48).Type: GrantFiled: November 13, 2017Date of Patent: March 30, 2021Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Annika Zeumer, Steffen Schmitt, Stefanos Varelis, Ralf Hölsch
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Patent number: 10934977Abstract: A gas/gas mixer for introducing gas, especially air, into the exhaust gas stream of an internal combustion engine, includes a mixer body (32) that is elongated in the direction of a body longitudinal axis (L). A plurality of gas passage openings (38) are provided in a wall (36) of the mixer body (32) enclosing a volume of gas to be introduced (42) in the mixer body (32). The mixer body (32) is configured with a flattened cross-sectional profile, flattened obliquely to the body longitudinal axis (L).Type: GrantFiled: April 10, 2019Date of Patent: March 2, 2021Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Manuel Notter, Enver Kurpejovic
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Patent number: 10934919Abstract: An exhaust system for an internal combustion engine, especially in a vehicle, includes an exhaust gas flow duct (14), a reactant release device (20) for the release of reactant (R) into the exhaust gas flow duct (14) and a catalytic converter device (16) downstream of the reactant release device (20). At least one part of a component surface is provided by a hydrophilic material (34) of at least one exhaust gas-carrying component (12, 22) positioned in the reactant flow path or/and defining this reactant flow path, or/and at least one part of the component surface is provided by a hydrophobic material (40) of at least one exhaust gas-carrying component (12, 18, 22) positioned in the reactant flow path.Type: GrantFiled: October 9, 2018Date of Patent: March 2, 2021Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Gerd Gaiser, Bernd Weller
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Patent number: 10920640Abstract: A mixer for mixing exhaust gas flowing in an exhaust gas duct of an internal combustion engine with reactant injected into the exhaust gas duct includes a plate-shaped exhaust gas collection body (12) with an incoming flow surface (14) on an exhaust gas incoming flow side (16) and with a rear side (18) facing away from the incoming flow side (16). A duct housing (20), arranged on the rear side (18) of the exhaust gas collection body (12), has a reactant-receiving duct (28) and at least one release duct (48, 50) leading away from the reactant-receiving duct (28). An exhaust gas collection opening (34) is formed in the exhaust gas collection body (12). An exhaust gas collection duct (36) leads from the exhaust gas collection opening (34) to the duct housing (20) and is open to the reactant-receiving duct (28).Type: GrantFiled: January 23, 2020Date of Patent: February 16, 2021Assignee: Eberspächer Exhaust Technology GmbHInventor: Enver Kurpejovic
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Patent number: 10859189Abstract: A method for joining two components, of which at least one is tubular in shape, more preferably of an exhaust system of an internal combustion engine. The joint can be produced in an easier manner with high quality if a ring-shaped joining element having an outer cone on at least one axial side with its outer cone is axially pressed into an axial end section of the one tubular component, as a result of which the end section of the one component widens along the outer cone when on its axial end of the widened end section and on the joining element a circumferential weld seam is produced and when the other component on an axial end section is joined with the joining element.Type: GrantFiled: September 24, 2009Date of Patent: December 8, 2020Assignee: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KGInventor: Georg Wirth
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Patent number: 10825442Abstract: A sound generation assembly unit, for an exhaust system of an internal combustion engine, includes a sound generation module (16) with a sound generation module housing to be arranged at an exhaust gas guide element (12) of the exhaust system (14). At least one loudspeaker unit (20) is arranged in the sound generation module housing (18). A rear volume module (30) includes a rear volume module housing (32) and a rear volume (34) formed in the rear volume module housing (32). The rear volume module housing (32) is connected or can be connected to the sound generation module housing (18) for the acoustic coupling of the rear volume (34) to the at least one loudspeaker unit (20).Type: GrantFiled: June 20, 2018Date of Patent: November 3, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KCInventor: Sven Grötzinger
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Patent number: 10823033Abstract: An internal combustion engine, exhaust system, exhaust gas treatment device includes an housing (18) including a housing inlet (34) and a housing outlet (60). An exhaust gas treatment unit (28), in the housing, includes an inlet (32) following the housing inlet and an outlet (38). An SCR catalytic converter device (30), in the housing, includes an SCR catalytic converter device inlet (54) following the exhaust gas treatment unit outlet and an SCR catalytic converter device outlet (56). A reactant releasing device (52) releases reactant upstream of the SCR catalytic converter device inlet. An exhaust gas duct (42), formed in an exhaust gas pipe (44), leads in the housing from the exhaust gas treatment unit outlet to the SCR catalytic converter device inlet, whereby exhaust gas leaving the SCR catalytic converter device at the SCR catalytic converter device outlet flows around the exhaust gas pipe in at least some areas.Type: GrantFiled: August 9, 2019Date of Patent: November 3, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Markus Henzler, Michael Mayer, Olexander Vyelyayev
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Patent number: 10823088Abstract: An exhaust gas flap includes a flap tube (12), a flap diaphragm (16) carried in the interior of the flap tube (12) on a pivot shaft (14) rotatable about a pivot axis (A), a pivot drive (30) and a coupling device (36) coupling the pivot shaft (14) to a drive shaft (34) of the pivot drive (30). The coupling device (36) includes a first coupling area (42) that positive-lockingly meshes with the drive shaft (34) and a second coupling area (44) that positive-lockingly meshes with the pivot shaft (14). A biasing element (78) is supported in relation to the coupling device (36) and is supported in relation to one shaft of the drive shaft (34) and the pivot shaft (14). The coupling device (36) is axially biased by the biasing element (78) towards the other shaft and is prestressed about the pivot axis in relation to the one shaft.Type: GrantFiled: September 23, 2019Date of Patent: November 3, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Annika Zeumer, Steffen Schmitt, Andreas Wacker, Dennis Bahr, Sven Grötzinger, Matthias Grün
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Patent number: 10815847Abstract: An exhaust gas muffler, for an exhaust system of an internal combustion engine, includes a muffler housing (12) with a circumferential wall (14) elongated in a housing axis (L) direction and with an end wall (20, 22) at each axial end area (16, 18). Two exhaust gas pipe holding openings (44, 46) are provided in the circumferential wall (14) with an exhaust gas pipe (40) fixed to the circumferential wall (14) in an area of each exhaust gas pipe holding opening (44, 46) and open towards a housing interior (24). The exhaust gas pipe (40) is preferably closed at one end area (54) by a closing element (58). The exhaust gas pipe (40) has at least one exhaust gas passage opening (66) in a length area (64) extending between the two exhaust gas pipe holding openings (44, 46).Type: GrantFiled: November 29, 2017Date of Patent: October 27, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Ian Barret, Laurent Cazeneuve
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Patent number: 10815857Abstract: A mixing device for an exhaust system of an internal combustion engine includes a mixing section (14) with a mixing section inlet area (20) to be positioned downstream in relation to a reactant introduction device (12). A mixing section outlet area (22) is positioned upstream in relation to a catalytic converter device (16). The mixing section (14) includes an inner wall (26) surrounding an inner volume (28), through which exhaust gas (A) or/and reactant (R) can flow, and an outer wall (24) surrounding the inner wall (26). An outer volume (30) surrounds the inner volume (28) in a ring-shape, formed between the inner wall and the outer wall (24). An electrically energizable heating device (34) is provided at the inner wall (26), or/and a heat transfer rib formation (54) is provided at the inner wall (26).Type: GrantFiled: October 16, 2018Date of Patent: October 27, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventor: Gerd Gaiser
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Patent number: 10815855Abstract: A mixer mixes exhaust gas (A) flowing in an exhaust gas-carrying duct of an internal combustion engine with reactant (R) injected into the exhaust gas-carrying duct. The mixer includes a mixer body (26) with a reactant-receiving duct (32) as well as a releasing device (36) with a releasing duct (34). The releasing device adjoins the reactant-receiving duct (32) in a transition area (42) and leads away from the reactant-receiving duct. The releasing device (36) has an asymmetric configuration in relation to a longitudinal axis (LR) of the reactant-receiving duct.Type: GrantFiled: January 17, 2019Date of Patent: October 27, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Enver Kurpejovic, Krishna Kumar Vempati, Vijaya Bhaskar Solipuram
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Patent number: 10781740Abstract: An exhaust system, especially for an internal combustion engine in a vehicle, includes at least one sensor carrier unit (20) carried on an exhaust gas-carrying element (14). The sensor carrier unit (20) includes a sensor carrier element (22) fixed to the exhaust gas-carrying element (14). A plurality of sensor pipe connections (24, 26, 28), that are fitted or can be fitted with sensors, are provided on the sensor carrier element (22). The plurality of sensor pipe connections (24, 26, 28) each have at least one respective sensor-mounting/measuring opening (30) formed therein.Type: GrantFiled: February 25, 2019Date of Patent: September 22, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventors: Benjamin Röhr, Roland Schwarz, Wolfgang Herbst, Frank Berkemer, Tadeusz-Jozef Juroszek, Peter Gorke
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Patent number: 10767527Abstract: An exhaust system (1) for a motor vehicle includes an exhaust gas-purifying device (2) for purifying exhaust gas (3) removed from an internal combustion engine with a reducing agent feed (4), which is arranged downstream and at a spaced location from the exhaust gas-purifying device (2) and by which a reducing agent can be introduced into the exhaust system (1). A reducing agent-deflecting device (7) is arranged between the exhaust gas-purifying device (2) and the reducing agent feed (4). The reducing agent-deflecting device (7) has at least one reducing agent-deflecting element (8) of a blade-like design.Type: GrantFiled: July 27, 2018Date of Patent: September 8, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventor: Silvia Calvo
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Patent number: 10753910Abstract: A process for the analysis of the acoustic characteristic of an exhaust gas flap (10) for an exhaust system of an internal combustion engine, wherein the exhaust gas flap (10) includes a flap diaphragm (14), which is adjustable in a flap body (12). A measurement noise is applied to the exhaust gas flap (10). A disturbing noises originating at the exhaust gas flap (10) is detected and a disturbing noise time course (50) is generated. A disturbing noise frequency course (56) is generated based on the disturbing noise time course (50). The disturbing noise frequency course (56) is compared with a reference disturbing noise frequency course (58). The acoustic quality of the exhaust gas flap (10) is evaluated based on the comparison.Type: GrantFiled: November 5, 2018Date of Patent: August 25, 2020Assignee: Eberspächer Exhaust Technology GmbH & Co. KGInventor: Sven Grötzinger