Patents Assigned to Eberspächer Exhaust Technology GmbH & Co. KG
  • Patent number: 11105275
    Abstract: 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: Grant
    Filed: November 23, 2018
    Date of Patent: August 31, 2021
    Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventors: Annika Zeumer, Steffen Schmitt, Alexander Lermer, Domenic Binder, Thomas Faller, Andreas Kaiser
  • Patent number: 11015507
    Abstract: 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: Grant
    Filed: October 15, 2018
    Date of Patent: May 25, 2021
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Gerd Gaiser
  • Patent number: 11002169
    Abstract: 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: Grant
    Filed: September 25, 2018
    Date of Patent: May 11, 2021
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Gerd Gaiser, Bernd Weller
  • Patent number: 10961896
    Abstract: 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: Grant
    Filed: November 13, 2017
    Date of Patent: March 30, 2021
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Annika Zeumer, Steffen Schmitt, Stefanos Varelis, Ralf Hölsch
  • Patent number: 10962446
    Abstract: 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: Grant
    Filed: November 30, 2018
    Date of Patent: March 30, 2021
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Matthias Scheer, Christoph Buckermann
  • Patent number: 10934977
    Abstract: 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: Grant
    Filed: April 10, 2019
    Date of Patent: March 2, 2021
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Manuel Notter, Enver Kurpejovic
  • Patent number: 10934919
    Abstract: 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: Grant
    Filed: October 9, 2018
    Date of Patent: March 2, 2021
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Gerd Gaiser, Bernd Weller
  • Patent number: 10859189
    Abstract: 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: Grant
    Filed: September 24, 2009
    Date of Patent: December 8, 2020
    Assignee: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventor: Georg Wirth
  • Patent number: 10823088
    Abstract: 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: Grant
    Filed: September 23, 2019
    Date of Patent: November 3, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Annika Zeumer, Steffen Schmitt, Andreas Wacker, Dennis Bahr, Sven Grötzinger, Matthias Grün
  • Patent number: 10823033
    Abstract: 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: Grant
    Filed: August 9, 2019
    Date of Patent: November 3, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Markus Henzler, Michael Mayer, Olexander Vyelyayev
  • Patent number: 10815855
    Abstract: 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: Grant
    Filed: January 17, 2019
    Date of Patent: October 27, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Enver Kurpejovic, Krishna Kumar Vempati, Vijaya Bhaskar Solipuram
  • Patent number: 10815857
    Abstract: 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: Grant
    Filed: October 16, 2018
    Date of Patent: October 27, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Gerd Gaiser
  • Patent number: 10815847
    Abstract: 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: Grant
    Filed: November 29, 2017
    Date of Patent: October 27, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Ian Barret, Laurent Cazeneuve
  • Patent number: 10781740
    Abstract: 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: Grant
    Filed: February 25, 2019
    Date of Patent: September 22, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Benjamin Röhr, Roland Schwarz, Wolfgang Herbst, Frank Berkemer, Tadeusz-Jozef Juroszek, Peter Gorke
  • Patent number: 10767527
    Abstract: 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: Grant
    Filed: July 27, 2018
    Date of Patent: September 8, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Silvia Calvo
  • Patent number: 10753910
    Abstract: 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: Grant
    Filed: November 5, 2018
    Date of Patent: August 25, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Sven Grötzinger
  • Patent number: 10697338
    Abstract: An exhaust system for an internal combustion engine, especially diesel internal combustion engine, includes an exhaust gas flow duct (12). At least one exhaust gas treatment unit (23, 26, 28, 30) is provided in an exhaust gas treatment duct area (16) of the exhaust gas flow duct (12). The exhaust gas treatment duct area (16) of the exhaust gas flow duct (12) extends, in at least some areas, in an insulation volume (20), through which exhaust gas discharged from the exhaust gas treatment duct area (16) can flow.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 30, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Felix Neumann, Alexander Kauderer, Wolfgang Datz, Philip Weinmann, Simon Krammer, Andreas Sauer
  • Patent number: 10690063
    Abstract: An exhaust gas flap, especially for the exhaust gas stream of an internal combustion engine, includes a flap tube (24), a flap diaphragm (26). The flap diaphragm (26) is carried in the interior of the flap tube (24) on a pivot shaft (18), rotatable about a pivot axis (A). The flap diaphragm (26) has at least one flap diaphragm part (28, 30) and a mounting area (40) enclosing the pivot shaft (18) in at least some areas. A wing stop (42, 44) is provided at an inner circumferential area of the flap tube (24) in association with at least one flap diaphragm part (28, 30). A recess (60, 62, 64, 66) at the flap diaphragm (26), receiving a circumferential end area (48, 50) of a wing stop (42, 44), is provided in at least one axial end area of the mounting area (40).
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 23, 2020
    Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventors: Stefanos Varelis, Steffen Schmitt
  • Patent number: 10675700
    Abstract: A quick-change coupling (16), for coupling a device carrier (14) to a carrier unit (12) of a welding cell (11), especially for welding together components for internal combustion engine exhaust systems, includes a first coupling unit (18) to be fixed to a carrier unit (12) and a second coupling unit (20) to be fixed to the device carrier (14). One of the coupling units (18, 20) has a pushing meshing recess (24) and the other of the coupling units (18, 20) has a pushing meshing body (26) that can be inserted into the pushing meshing recess (24) in a direction of pushing (R). A positive-locking positioning device (46) is adjustable between a released state and a positive-locking positioning state. With the pushing meshing body positioned meshing with the pushing meshing recess, the positive-locking positioning device in the positive-locking positioning state holds the pushing meshing body in an operating position.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: June 9, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Christoph Puchta, Achim Glieden, Martin Wagmann
  • Patent number: 10655520
    Abstract: 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: Grant
    Filed: August 9, 2018
    Date of Patent: May 19, 2020
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Jan Krüger, Günter Eberspach