Patents by Inventor Ludwig Wieres

Ludwig Wieres 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: 10041392
    Abstract: A device includes at least one tank having a tank bottom and a delivery unit for a liquid. The delivery unit is disposed in a chamber on the tank bottom and the chamber includes at least one heater. The tank preferably has at least one local ventilation heater extending from a discharge for liquid on the tank bottom over at least one tank side to the vicinity of a tank top.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: August 7, 2018
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Ludwig Wieres, Jan Hodgson, Rolf Brück
  • Patent number: 9840958
    Abstract: An apparatus includes at least one tank having a tank bottom and a delivery unit for a liquid. The delivery unit is disposed in a chamber on the tank bottom and the chamber has at least one heater.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: December 12, 2017
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Ludwig Wieres, Jan Hodgson, Rolf Brück
  • Patent number: 9765668
    Abstract: A method for determining an amount of liquid removed from a tank per unit time includes discontinuously feeding the liquid to exhaust gas of an internal combustion engine by at least feeding the liquid through an injection line into the exhaust gas, measuring pressures simultaneously at least at two points in the injection line and determining an amount of liquid fed in per unit time from the measured pressures. The amount of liquid removed between a first point in time and a second point in time is further derived by integrating the amounts of liquid removed per unit time over a period of time from the first point in time to the second point in time. The method allows the precise consumption of the liquid to be calculated and the remaining amount of liquid in the tank to be additionally determined. On-board diagnosis is further possible with the method.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 19, 2017
    Assignee: EMITEC Gesellschaft fuer Emissiontechnologie mbH
    Inventors: Wolfgang Maus, Ludwig Wieres, Jan Hodgson, Rolf Brück
  • Patent number: 9421488
    Abstract: A particle separator for treating the exhaust gases of an internal combustion engine includes at least one metallic layer through which exhaust gas can flow. The metallic layer is located in a housing that includes an inlet opening, an outlet opening and a central axis. The housing is provided with at least one inspection or maintenance opening that laterally penetrates the housing and provides a passage through to the metallic layer. The particle separator can, in particular, remain operational without having to be dismantled or can autonomously remain fully open to a flow at all times. A motor vehicle having at least one particle separator is also provided.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: August 23, 2016
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Joachim Sittig, Michael Voit, Ferdi Kurth, Ludwig Wieres
  • Patent number: 9151197
    Abstract: A particle separator for treating the exhaust gases of an internal combustion engine includes a housing having an inlet opening, an outlet opening, a cross section and a central axis. At least one metallic layer, through which exhaust gas can flow, is located in the housing and has an undulation or corrugation that spans the cross section of the housing. The particle separator has a large surface for providing the lowest possible flow resistance and a low risk of clogging. A motor vehicle having at least one particle separator is also provided.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: October 6, 2015
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Joachim Sittig, Michael Voit, Ferdi Kurth, Ludwig Wieres
  • Patent number: 9057306
    Abstract: A device for delivering reducing agent from a tank to a metering unit includes a pulsating delivery pump for delivering reducing agent in a delivery direction through a delivery line from the tank to the metering unit. The delivery line includes at least two separate ducts in regions downstream of the delivery pump in the delivery direction. The ducts form flow paths having different propagation times for the reducing agent. This leads, in particular, to cost-effective noise reduction for such delivery systems. A motor vehicle having the device is also provided.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: June 16, 2015
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Ludwig Wieres, Rolf Brueck, Peter Hirth, Jan Hodgson
  • Patent number: 8720637
    Abstract: A honeycomb body for an exhaust-gas purification system may be used, for example, as a carrier body for catalytically acting coatings or as a filter, absorber or mixer in the exhaust system of an internal combustion engine. The honeycomb body has channels, an axial main direction, a planar front surface, a planar end surface and a circumferential surface disposed parallel to the axial main direction. The front surface and/or the end surface are disposed obliquely with respect to the axial main direction. Such a honeycomb body is advantageous, in particular, for applying reducing agent to the oblique end or front surface. A method for producing a honeycomb body, an exhaust line section and a motor vehicle are also provided.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: May 13, 2014
    Assignee: EMITEC Gesellschaft fuer Emissiontechnologie mbH
    Inventors: Ludwig Wieres, Rolf Brück, Hubertus Kotthoff
  • Patent number: 8661670
    Abstract: A process for producing a structure in a smooth sheet-metal strip includes multiple process steps. In a first step, a first section of a smooth sheet-metal strip is fed to a first tool and a second section of the sheet-metal strip is fed to a second tool in a direction of advance. Then the sheet-metal strip is stopped. A sheet-metal machining of the first section of the sheet-metal strip is carried out using the first tool. A sheet-metal machining of the second section of the sheet-metal strip is carried out using the second tool, with the first feeding step being carried out simultaneously. An apparatus is provided for producing a sheet-metal strip of such a complex structure, which produces the structure with a very high degree of accuracy even when the materials properties differ.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: March 4, 2014
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Rolf Brück, Ludwig Wieres, Jan Hodgson, Gottfried-Wilhelm Häsemann
  • Publication number: 20130247547
    Abstract: A particle separator for treating the exhaust gases of an internal combustion engine includes a housing having an inlet opening, an outlet opening, a cross section and a central axis. At least one metallic layer, through which exhaust gas can flow, is located in the housing and has an undulation or corrugation that spans the cross section of the housing. The particle separator has a large surface for providing the lowest possible flow resistance and a low risk of clogging. A motor vehicle having at least one particle separator is also provided.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: JOACHIM SITTIG, MICHAEL VOIT, FERDI KURTH, LUDWIG WIERES
  • Publication number: 20130247548
    Abstract: A particle separator for treating exhaust gases from an internal combustion engine includes a housing having an inlet opening, an outlet opening, a central axis, a first part with a first joining surface and a second part with a second joining surface. The first and second joining surfaces correspond to one another, so that the first and second parts can be positioned along the central axis relative to one another. At least one metallic layer, through which exhaust gas can flow, spaces the first and second joining surfaces apart over the entire circumference. The particle separator can be manufactured cost-effectively in a simple manner with few measures and, in particular, is suitable for retrofitting to an existing exhaust system. A method for producing the particle separator and a motor vehicle having the particle separator are also provided.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: JOACHIM SITTIG, MICHAEL VOIT, FERDI KURTH, LUDWIG WIERES
  • Publication number: 20130247549
    Abstract: A particle separator for treating the exhaust gases of an internal combustion engine includes at least one metallic layer through which exhaust gas can flow. The metallic layer is located in a housing that includes an inlet opening, an outlet opening and a central axis. The housing is provided with at least one inspection or maintenance opening that laterally penetrates the housing and provides a passage through to the metallic layer. The particle separator can, in particular, remain operational without having to be dismantled or can autonomously remain fully open to a flow at all times. A motor vehicle having at least one particle separator is also provided.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: JOACHIM SITTIG, MICHAEL VOIT, FERDI KURTH, LUDWIG WIERES
  • Patent number: 8500835
    Abstract: A hollow body for capturing particles includes at least one at least partially permeable wall extending between two at least partially oppositely disposed openings and along a first longitudinal direction. The hollow body has a primary cross-sectional shape defining a first cross-sectional area. At least one of the openings defines a second cross-sectional area. The second cross-sectional area is greater than the first cross-sectional area. An exhaust-gas treatment device having an exhaust line and a motor vehicle having an exhaust-gas treatment device are also provided.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: August 6, 2013
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Ludwig Wieres, Joachim Sittig, Hubertus Kotthoff
  • Patent number: 8491859
    Abstract: A device includes an injector for a liquid having at least one pressure sensor, preferably an integrated pressure sensor. The device is used, in particular, for adding liquid reducing agent to an exhaust gas line of a motor vehicle. A configuration having the device and methods of using the device and the configuration are also provided.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 23, 2013
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Ludwig Wieres, Jan Hodgson, Rolf Brück
  • Patent number: 8460612
    Abstract: A honeycomb body includes at least one housing and a honeycomb structure for a waste-gas purification system having at least one sheet metal material. The sheet metal material has elevations in at least one section and an edge contour enclosing the elevations. A portion of the area of the elevations in the at least one section is at least 80%. A particle separator, a catalyst carrier body and a motor vehicle having the honeycomb body are also provided.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: June 11, 2013
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mgH
    Inventors: Ludwig Wieres, Stefan Seeliger
  • Patent number: 8444740
    Abstract: A nonwoven fabric for exhaust-gas treatment includes a multiplicity of metallic filaments having at least two types of different contours of the metallic filaments. An exhaust-gas purification device includes a channel structure through which exhaust gas can at least partially flow. The channel structure is made at least partially with such a nonwoven fabric. A method for producing a nonwoven fabric for exhaust-gas treatment is also provided.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: May 21, 2013
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Hubertus Kotthoff, Stefan Seeliger, Dietmar Chauchet, Ludwig Wieres
  • Patent number: 8389438
    Abstract: A method for the production of a converter-carrier body having a metallic honeycomb body made of a plurality of metal layers, especially smooth layers and corrugated layers, the layers having layer ends, such that an outer shape of the honeycomb body is formed by the layer ends. At least one stack is produced having several alternately disposed metal layers that are structured such that channels are formed for a fluid to flow through. The at least one stack is transformed into a honeycomb body having a cylindrical form. The honeycomb body is deformed from the cylindrical form so that an outer shape that deviates from the cylindrical form is produced. Additionally, the invention relates to a corresponding converter-carrier body and a tool for the production thereof.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: March 5, 2013
    Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbH
    Inventor: Ludwig Wieres
  • Publication number: 20120321525
    Abstract: An apparatus includes at least one tank having a tank bottom and a delivery unit for a liquid. The delivery unit is disposed in a chamber on the tank bottom and the chamber has at least one heater.
    Type: Application
    Filed: July 13, 2012
    Publication date: December 20, 2012
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: WOLFGANG MAUS, LUDWIG WIERES, JAN HODGSON, ROLF BRÜCK
  • Publication number: 20120315196
    Abstract: A device includes at least one tank having a tank bottom and a delivery unit for a liquid. The delivery unit is disposed in a chamber on the tank bottom and the chamber includes at least one heater. The tank preferably has at least one local ventilation heater extending from a discharge for liquid on the tank bottom over at least one tank side to the vicinity of a tank top.
    Type: Application
    Filed: July 13, 2012
    Publication date: December 13, 2012
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: WOLFGANG MAUS, LUDWIG WIERES, JAN HODGSON, ROLF BRÜCK
  • Publication number: 20120308455
    Abstract: A device includes an injector for a liquid having at least one pressure sensor, preferably an integrated pressure sensor. The device is used, in particular, for adding liquid reducing agent to an exhaust gas line of a motor vehicle. A configuration having the device and methods of using the device and the configuration are also provided.
    Type: Application
    Filed: July 13, 2012
    Publication date: December 6, 2012
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: WOLFGANG MAUS, LUDWIG WIERES, JAN HODGSON, ROLF BRUECK
  • Publication number: 20120304626
    Abstract: A method for determining an amount of liquid removed from a tank per unit time includes discontinuously feeding the liquid to exhaust gas of an internal combustion engine by at least feeding the liquid through an injection line into the exhaust gas, measuring pressures simultaneously at least at two points in the injection line and determining an amount of liquid fed in per unit time from the measured pressures. The amount of liquid removed between a first point in time and a second point in time is further derived by integrating the amounts of liquid removed per unit time over a period of time from the first point in time to the second point in time. The method allows the precise consumption of the liquid to be calculated and the remaining amount of liquid in the tank to be additionally determined. On-board diagnosis is further possible with the method.
    Type: Application
    Filed: July 13, 2012
    Publication date: December 6, 2012
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: WOLFGANG MAUS, LUDWIG WIERES, JAN HODGSON, ROLF BRUCK