Patents by Inventor STEFAN ROMAN ZUELCH

STEFAN ROMAN ZUELCH 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).

  • Reagent dosing system and method of dosing reagent
    Patent number: 9279351
    Abstract: A reagent dosing system for dosing a reagent into the exhaust gas stream of an internal combustion engine includes a reagent tank for storing a supply of reagent; an injector module including an atomizing dispenser and a positive-displacement metering pump which draws reagent from the reagent tank and delivers it to the dispenser; a supply line coupling the reagent tank to the injector module; a dosing control unit operable to control the injector module to inject reagent into the exhaust gas stream; and an additional priming pump arranged, in use, to urge reagent along the supply line toward the injector module under selected conditions.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: March 8, 2016
    Assignee: Delphi International Operations Luxembourg S.A.R.L.
    Inventors: Philip J. G. Dingle, Martin Paul Hardy, Stefan Roman Zuelch
  • REAGENT DOSING SYSTEM AND METHOD OF DOSING REAGENT
    Publication number: 20140311128
    Abstract: A reagent dosing system for dosing a reagent into the exhaust gas stream of an internal combustion engine includes a reagent tank for storing a supply of reagent; an injector module including an atomising dispenser and a positive-displacement metering pump which draws reagent from the reagent tank and delivers it to the dispenser; a supply line coupling the reagent tank to the injector module; a dosing control unit operable to control the injector module to inject reagent into the exhaust gas stream; and an additional priming pump arranged, in use, to urge reagent along the supply line toward the injector module under selected conditions.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: PHILIP J.G. DINGLE, MARTIN PAUL HARDY, STEFAN ROMAN ZUELCH