Patents by Inventor Gerd Gaiser

Gerd Gaiser 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).

  • 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: 11008912
    Abstract: 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: Grant
    Filed: March 16, 2020
    Date of Patent: May 18, 2021
    Assignee: Eberspächer Exhaust Technology GmbH
    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: 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: 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
  • Publication number: 20200300141
    Abstract: 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: Application
    Filed: March 16, 2020
    Publication date: September 24, 2020
    Inventor: Gerd GAISER
  • Publication number: 20200240305
    Abstract: An exhaust gas heating unit for an exhaust system of an internal combustion engine includes a jacket heating conductor element (12) with a jacket (16) and with an electrical heating conductor (14). The electrical heating conductor (14) extends in the jacket (16) and is surrounded by insulating material (18). A heat transfer surface formation (20) is arranged on an outer side of the jacket (16) and is in heat transfer contact with same.
    Type: Application
    Filed: January 23, 2020
    Publication date: July 30, 2020
    Inventor: Gerd GAISER
  • Publication number: 20200148036
    Abstract: A heating system for a vehicle includes a reaction space (16) containing a first reactant (22) and a reactant storage space (20) containing or/and receiving a second reactant (24), wherein the first reactant and the second reactant form such a reaction system. A reaction of the first reactant with the second reactant produces a reaction product that releases heat. The second reactant can be separated from the first reactant by introducing heat into the reaction product. A reactant-releasing device (26) releases second reactant from the reactant storage space into the reaction space (16). A first heat removal device (58) removes heat from the first reactant or/and reaction product contained in the reaction space (16). A heating unit (52) heats the first reactant or/and heats the reaction product contained in the reaction space. A reactant-recirculating device (36) recirculates second reactant from the reaction space into the reactant storage space.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 14, 2020
    Inventor: Gerd GAISER
  • 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: 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: 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: 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
  • Publication number: 20190112962
    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: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Inventor: Gerd GAISER
  • Publication number: 20190112961
    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: Application
    Filed: October 15, 2018
    Publication date: April 18, 2019
    Inventor: Gerd GAISER
  • Publication number: 20190107026
    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: Application
    Filed: October 9, 2018
    Publication date: April 11, 2019
    Inventors: Gerd Gaiser, Bernd Weller
  • Publication number: 20190101036
    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: Application
    Filed: September 25, 2018
    Publication date: April 4, 2019
    Inventors: Gerd GAISER, Bernd WELLER
  • 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: 10156172
    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), a heating unit (18) for heating reactant (R) delivered by the reactant delivery unit (12) to the reactant injection unit (20). An actuating unit (32) actuates the reactant delivery unit (12), the heating unit (18) and the reactant injection unit (20). An overpressure valve (26) or/and a pressure storage unit (30) is provided downstream of the reactant delivery unit (12).
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: December 18, 2018
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Gerd Gaiser
  • Patent number: 10077696
    Abstract: The invention relates to a system component of an exhaust system for a combustion engine, more preferably of a motor vehicle, with at least one component portion having a closed hollow space structure (2), wherein walls of the closed hollow space structure (2) enclose a reaction chamber (5), in which at least one stationary system component (6) of a reactive heating system is arranged. By using a reactive heating system a rapid heating-up of at least one system component of the exhaust system is advantageously possible.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: September 18, 2018
    Assignee: J. Eberspaecher GmbH & Co. KG
    Inventor: Gerd Gaiser
  • Patent number: 9982570
    Abstract: An evaporator (1), for evaporating a liquid (4), particularly for a waste heat utilization device of an internal combustion engine, includes a plurality of channel plate arrangements (2) that are stacked in a stacking direction (3). A gas path (6) is formed between each pair of adjacent channel plate arrangements (2), through which a gas (7) can be conducted. The gas is used to supply the heat that is required to evaporate the liquid (4). Each channel plate arrangement (2) contains a liquid inlet (8), a steam outlet (9), and a channel (11) which connects the liquid inlet (8) and steam outlet (9) together and which forms a repeatedly deflecting evaporation path (12) for the liquid (4) to be evaporated. The channel (11) has, in an evaporation path (12) evaporation zone (14), a flowable cross-section (18) which increases in a direction of liquid (4) flow.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: May 29, 2018
    Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventor: Gerd Gaiser