Patents by Inventor Johann Siller

Johann Siller 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).

  • Metering valve assembly and method for operating a metering valve assembly
    Patent number: 7937932
    Abstract: A metering valve assembly having a metering valve for metering an aqueous urea solution for posttreatment of exhaust gases from internal combustion engines, the liquid being capable of being fed in a feeding direction to the metering valve and a mixing chamber being provided, in which the liquid is miscible with a gas in a gas flow. The metering valve is evacuatable contrary to the feeding direction.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: May 10, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Bernhard Hager, Michael Offenhuber, Franz Lackner, Johann Siller, Leopold Bernegger
  • Apparatus for introducing a reducing agent into the exhaust of an internal combustion engine
    Patent number: 7594393
    Abstract: An apparatus for introducing a reducing agent into the exhaust of an internal combustion engine, having a reservoir, a delivery unit, and a flow path for the reducing agent. The apparatus also has a ventilation device for ventilating the flow path and is situated at a geodetic high point of the flow path and even in the closed state, permits a return of a minimal fluid quantity to the reservoir.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: September 29, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Michael Offenhuber, Franz Lackner, Johann Siller, Olivier Marco, Rainer Reiter
  • Metering Valve Assembly and Method for Operating a Metering Valve Assembly
    Publication number: 20090126348
    Abstract: A metering valve assembly having a metering valve for metering an aqueous urea solution for posttreatment of exhaust gases from internal combustion engines, the liquid being capable of being fed in a feeding direction to the metering valve and a mixing chamber being provided, in which the liquid is miscible with a gas in a gas flow. The metering valve is evacuatable contrary to the feeding direction.
    Type: Application
    Filed: April 1, 2005
    Publication date: May 21, 2009
    Inventors: Bernhard Hager, Michael Offenhuber, Franz Lackner, Johann Siller, Leopold Bernegger
  • Method And Device For Introducing A Reagent Into An Exhaust Gas Channel Of An Internal Combustion Engine
    Publication number: 20070209349
    Abstract: A procedure to introduce a reagent substance into the exhaust duct of an internal combustion engine and a device to implement the procedure are proposed. At least one catalytic converter is disposed in the exhaust duct of the internal combustion engine. In front of the aforementioned catalytic converter(s), a reagent substance subjected to pressure is sprayed into the exhaust gas. The reagent substance pressure set point is established as a function of a parameter. The procedural approach allows for a targeted employment of the reagent substance and a high degree of utilization of the converter.
    Type: Application
    Filed: March 14, 2005
    Publication date: September 13, 2007
    Applicant: Robert Bosch GMBH
    Inventors: Wolfgang Ripper, Markus Buerglin, Michael Offenhuber, Goetz Flender, Franz Lackner, Johann Siller
  • Apparatus for introducing a reducing agent into the exhaust of an internal combustion engine
    Publication number: 20070068525
    Abstract: An apparatus for introducing a reducing agent into the exhaust of an internal combustion engine, having a reservoir, a delivery unit, and a flow path for the reducing agent. The apparatus also has a ventilation device for ventilating the flow path and is situated at a geodetic high point of the flow path and even in the closed state, permits a return of a minimal fluid quantity to the reservoir.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 29, 2007
    Inventors: Michael Offenhuber, Franz Lackner, Johann Siller, Olivier Marco, Rainer Reiter