Patents Assigned to Eberspächer Exhaust Technology GmbH & Co. KG
  • Patent number: 10508741
    Abstract: A coupling device (32) provides a rotary coupling of a pivot shaft (18) of a flap diaphragm (16) of an exhaust gas flap (10) with a drive element (34). The pivot shaft is to be rotated about a pivot axis (A). The coupling device (32) includes a first coupling part (36) with a first coupling area configured for coupling with the pivot shaft (18) and a second coupling part (38) with a second coupling area configured for coupling with the drive element (34). The first coupling part (36) and the second coupling part (38) are in a rotary coupling positive-locking meshing state with one another in the coupled state and are supported on one another in the direction of the pivot axis (A).
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: December 17, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Steffen Schmitt, Georg Wirth, Maximilian Kühnemund
  • Patent number: 10502111
    Abstract: An exhaust system for an internal combustion engine, especially for a vehicle, includes an exhaust gas-carrying pipe (12) and a reactant release unit (14) for releasing reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying pipe (12). The reactant release unit (14) includes a reactant injection unit (20), a reactant delivery unit (18) delivering reactant (R) from a reactant reservoir to the reactant injection unit (20) and a heating unit (24) for heating reactant (R) being delivered to the reactant injection unit (20). The heating unit (24) includes an exhaust gas/reactant heat exchanger unit (26) for transferring heat, being transported in the exhaust gas (A), to the reactant (R).
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: December 10, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Gerd Gaiser, Fabian Frobenius, Bernd Weller
  • Patent number: 10480659
    Abstract: A coupling device, for the rotary coupling of a pivot shaft of a flap diaphragm of an exhaust gas flap with a drive element, includes at least one coupling element (36) with a first coupling area (40) configured for coupling to the pivot shaft (18), with a second coupling area (42) configured for coupling to the drive element (34) and with at least one connection area (52, 58) connecting the first coupling area (40) to the second coupling area (42). In the coupled state, the first coupling area (40) and the second coupling area (42) are prestressed in a direction towards one another or in a direction away from one another. The at least one coupling element (36) is formed with sheet material.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: November 19, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Steffen Schmitt, Stefanos Varelis, Markus Birgler, Georg Wirth
  • Patent number: 10465587
    Abstract: 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: Grant
    Filed: May 22, 2017
    Date of Patent: November 5, 2019
    Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventors: Jan Krüger, Gerd Gaiser
  • Patent number: 10458301
    Abstract: A reactant release arrangement for an exhaust gas stream of an internal combustion engine has an exhaust gas guide element (12) with an exhaust gas flow duct (13). A reactant release body (14) extends into the exhaust gas flow duct (13) and has a reactant-receiving volume (20) with a wall inner surface (32) and a wall outer surface (18) of a body wall (16) that is open to the exhaust gas flow duct (13) via at least one passage opening (44, 46). Exhaust gas (G) flowing in the exhaust gas flow duct (13) flows around the reactant release body (14) at a wall outer surface (18) of the body wall (16). A reactant release unit (22) releases reagent (M) into the reactant-receiving volume (20). A heating device (38) is associated with an area of the inner surface (32) of the body wall (16) and heats the reactant release body (14).
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 29, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Krishna Kumar Vempati, Enver Kurpejovic
  • Patent number: 10458343
    Abstract: An exhaust gas flap, especially for the exhaust gas stream of an internal combustion engine, includes a flap tube (22) and a flap diaphragm (24) carried in an interior of the flap tube on a pivot shaft (16) rotatable about a pivot axis. A flap wing (28, 30) is mounted on the pivot shaft (16) and a wing stop (32, 34) is associated with the flap wing (28, 30) on an inner circumferential area of the flap tube. The flap wing (28, 30) has a mounting area (56, 58) with uncurved mounting surfaces (60, 64). Opposing mounting surfaces (62, 66) or/and a mounting recess (52, 54) at the pivot shaft (16) provide an opposing mounting area that at least partially receives the flap wing mounting area (56, 58) of the flap wing (28, 30), the opposing mounting area being provided on the outer circumferential area of the pivot shaft (16).
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 29, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Annika Stark, Steffen Schmitt, Stefanos Varelis, Bernd Müller, Jan Pallmann
  • Patent number: 10449623
    Abstract: A method for fastening a metallic bushing (3) to a metallic component (2) includes forming a ring-shaped contact surface (5) on the bushing, forming an opening (6) in the component and providing a collar (7) extending circumferentially along the opening in the component and projecting on a mounting side (8) of the component. The mounting side is brought into contact and pressed in the area of the opening in the component such that the contact surface touches the collar. The bushing (3) is pressed on the mounting side (8) of the component in the area of the opening (6), so that the contact surface is in contact with the collar under prestress. With the contact surface (5) in contact with the collar under prestress, the bushing (3) and the component (2) are resistance welded together in the area of the contact between the contact surface (5) and the collar (7).
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: October 22, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Harald Gerlich
  • Patent number: 10450969
    Abstract: An electric exhaust gas valve device (1) controls a flow cross section (5) of an exhaust pipe (6) of an exhaust system (8) of an internal combustion engine. The valve device includes an electric drive (2) driving a driven shaft (9) rotatingly about an axis of rotation (10). An exhaust gas valve (3) has a drive shaft (12) aligned coaxially to and rotatable about the axis of rotation for controlling the cross section. A coupling device (4) transmits torques between the driven shaft and the drive shaft and includes a connection element connected to the drive shaft, a transmission element (16) connected to the driven shaft and the connection element with a prestressing spring (18) supported axially on the connection element and/or on the drive shaft as well as on the transmission element and axially driving the transmission element against the driven shaft to reduce thermal load.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 22, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Annika Stark, Steffen Schmitt, Markus Birgler, Stefanos Varelis, Matthias Grün, Milijenko Novosel
  • Patent number: 10422263
    Abstract: An exhaust system for an internal combustion engine, especially for the internal combustion engine of a vehicle, includes an exhaust gas duct (12) carrying an exhaust gas stream (A) and a reactant release arrangement (18) for releasing a reactant ® into the exhaust gas stream (A). A bypass flow generation arrangement (25) generates a bypass flow (M) surrounding the reactant stream ® that is released from the reactant release arrangement (18).
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: September 24, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Gerd Gaiser
  • Patent number: 10415625
    Abstract: A fastening device, fixing an exhaust manifold (12) on a cylinder head (14) of an internal combustion engine, has a contact surface (20) supported relative to a cylinder head contact surface (22). A fastening edge area (16) has a wedge fastening flange area (24) with a fastening element support surface (26) inclined in relation to the contact surface (20) that has a wedge angle (W1). A fastening element (38) is pressed against the fastening element support surface (26) with a fastening flange support surface (40) with a fastening bolt unit (30) supported in relation to the cylinder head (14). The wedge angle (W1) and a coefficient of static friction (?) of the frictional interaction of the fastening element (38) in relation to the exhaust manifold (12) is defined by: 0<W1<2 tan?1 (?), in which W1 is the wedge angle, and ? if the coefficient of static friction.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 17, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Ralf Mohr, Arnulf Spieth, Jürgen Häberle
  • Patent number: 10385755
    Abstract: A method is provided for manufacturing a catalytic converter housing arrangement with at least one sensor carrier for an exhaust system of a vehicle. The method includes the steps of: a) providing at least one sensor carrier sheet metal blank (42); b) forming at least one sensor mounting opening (48) in the sensor carrier sheet metal blank (42) by flow drilling such that a length (L) of the opening is greater than a thickness (D) of the material of the sensor carrier sheet metal blank (42) before step b) is carried out; and c) preparing an internal thread in the at least one sensor mounting opening (48) for providing a sensor carrier.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: August 20, 2019
    Assignees: Eberspächer Exhaust Technology GmbH & Co. KG, Eberspächer Tecnologia de Exaustão Ltda
    Inventors: Dan Liu, Kimura Leandro, Rangel Thiesen
  • Patent number: 10371038
    Abstract: A connection piece assembly unit, especially for an exhaust gas treatment device of an exhaust system of an internal combustion engine, includes a connection piece (30) with a base area (32) for fixing the connection piece (30) to a carrier assembly unit. A covering element (40) projects over an outside (42) of the connection piece (30).
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: August 6, 2019
    Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventors: Dan Liu, Peter Kast
  • Patent number: 10294847
    Abstract: An exhaust gas treatment device (1), for an exhaust system of an internal combustion engine, is equipped with a housing (2). At least one mounting pipe (3), which contains a mounting space (4), is arranged within the housing. At least one cartridge (5) is arranged replaceably in the mounting space (4) and has a cartridge pipe (6) as well as at least one exhaust gas treatment element (7) arranged in the cartridge pipe (6). The cartridge pipe (6) is supported axially under axial prestress at an annular step (9) at least on an axial front side (31) via at least one spring element (27).
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: May 21, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Felix Neumann, Alexander Kauderer, Simon Krammer, Kirill Karelin
  • Patent number: 10281048
    Abstract: A three-way flap valve (4) includes an inlet (1), a first outlet (2), a second outlet (3), and a valve flap (5). The valve flap (5) can be moved between at least a first position and a second position. In the first position of the valve flap (5), fluid flowing in through the inlet (1) is directed to the first outlet (2). In the second position of the valve flap (5), fluid flowing in through the inlet (1) is directed to the second outlet (3). A surface (51) of the valve flap (5) circumscribed by an outer edge (53) includes at least a first surface section (A1), where the surface of the valve flap (5) has a curvature.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: May 7, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Frank Sühnel, Eduard-Horst Kast, Markus Birgler, Gerd Gaiser
  • Patent number: 10267207
    Abstract: A muffler for an exhaust system includes an exhaust gas duct pipe (20) and a wall (26). The wall (26) is connected to the exhaust gas duct pipe (20) in a first connection area (24) thereof by a thread meshing.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: April 23, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Michael Krause, Jürgen Häberle
  • Patent number: 10253670
    Abstract: An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing (2), which has a jacket (3) extending circumferentially on the side and two end-side end bottoms (4, 5). Maintenance is simplified with at least one mounting tube (6), which passes through one or the first end bottom (4) and into the outlet end (8) of which a particle filter (7) is plugged axially from the outside, with a deflecting housing (9). The deflecting housing (9) contains a deflecting chamber (10), and has at least one inlet (11) communicating with the deflecting chamber (10) and at least one outlet (12) communicating with the deflecting chamber (10). A fastening device (13) is provided for detachably fastening the respective inlet (11) at the respective outlet end (8) of the mounting tube (6).
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: April 9, 2019
    Assignees: Eberspächer Exhaust Technology GmbH & Co. KG, Volvo Lastvagnar AB
    Inventors: Marcus Werni, Rainer Lehnen
  • Patent number: 10215076
    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 (32) with a reactant receiving duct (48), an exhaust gas inlet opening arrangement (70) with a plurality of exhaust gas inlet openings (72, 74, 76, 78, 80) leading to the reactant receiving duct, and at least one release duct (62, 66) leading away from the reactant receiving duct (48) with a release duct opening (64, 66) for the release of a reactant/exhaust gas mixture from the mixer body (32).
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 26, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Vijaya Bhaskar Solipuram, Krishna Kumar Vempati, Enver Kurpejovic
  • Patent number: 10215067
    Abstract: A system (70) for actively controlling sound propagating through exhaust systems (40) includes a controller (90), a sound generator (30), in fluid communication with an exhaust system (40), and an actuator (20), inside the sound generator and receiving a controller control signal for generating sound inside the sound generator to reduce sound inside the exhaust system. The controller identifies an increased exhaust pressure inside the exhaust system based on signals output by an error microphone (50), a temperature sensor (51), an impedance measuring bridge (52), a bus system (53), or a water sensor (54). The controller interrupts a generation of the control signal and/or interrupts an output of the control signal to the at least one actuator and/or reduces a level of the control signal output to the at least one actuator by at least 30% or at least 60% upon determining a presence of an excessive exhaust gas pressure.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: February 26, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Ralf Hölsch, Michael Pommerer
  • Patent number: 10190460
    Abstract: A device for releasing reactant (R) into the exhaust gas stream (A) of an internal combustion engine, includes a reactant injection unit (20), a reactant delivery unit (12) for delivering reactant (R) from a reactant reservoir (14) to the reactant injection unit (20), and a heating unit (18) for heating reactant (R) delivered by the reactant delivery unit (12) to the reactant injection unit (20). The reactant injection unit (20) is switchable as a function of a reactant pressure generated by the reactant delivery unit (12) between an open state for releasing reactant (R) and a locked state for preventing the release of reactant.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: January 29, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Gerd Gaiser
  • Patent number: 10190463
    Abstract: An exhaust system, especially for an internal combustion engine of a vehicle, includes an exhaust gas-carrying duct (14) and a reactant injection device (20) for injecting reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20), a mixer device (22) supports the mixing of reactant (R) injected by the reactant injection device (20) with exhaust gas (A) flowing in the exhaust gas-carrying duct (14). Downstream of the reactant injection device (20) and upstream of the mixer device (22), a reactant heating device (24) extends in the exhaust gas-carrying duct (14). The exhaust gas (A) flows in and reactant (R) injected through the reactant injection device (20) flow around the heating device (24).
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: January 29, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Enver Kurpejovic, Bernd Westerhoff, David Binder, Anika Bürkle, Gita Feyl-Narrain, Steffen Glaser, Ruben Hass, Oleksandr Semenov, Krishna Kumar Vempati