Patents by Inventor Andreas Pfeifer

Andreas Pfeifer 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: 9829016
    Abstract: The invention relates to a flow conditioner for conditioning a fluid flow comprising a pipe having a constriction with a reduced pipe cross-section, at least one ring-shaped element arranged inside the pipe which has an outer diameter which is smaller than the inner diameter of the pipe in the axial region of the pipe in which the at least one ring-shaped element is arranged, and having an areal web whose surface normal is not in parallel with the pipe axis. The invention further relates to a throughflow measurement system for measuring a fluid throughflow through a pipe having a measurement device and a flow conditioner in accordance with the invention arranged upstream of the measurement device.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 28, 2017
    Assignee: SICK ENGINEERING GMBH
    Inventors: Andreas Gurr, Gerry Schroter, Andreas Pfeifer
  • Patent number: 8365704
    Abstract: In a method or a device for forming an electric control signal for an injection impulse of a position-controlled fuel injector, particularly of a common-rail or pump-nozzle injection system, the course of the electric control signal can be selected freely in regard to the pulse edges (injection rate changes Q), the holding period (?t) and the injection rate (Q). This offers the advantage that the combustion process can be better optimized with respect to low emissions, low consumption and for meeting tightened legal regulations.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: February 5, 2013
    Assignee: Continental Automotive GmbH
    Inventors: Jörg Beilharz, Uwe Lingener, Andreas Pfeifer, Richard Pirkl, Harald Schmidt, Klaus Wenzlawski, Hans-Jörg Wiehoff
  • Publication number: 20100288238
    Abstract: In a method or a device for forming an electric control signal for an injection impulse of a position-controlled fuel injector, particularly of a common-rail or pump-nozzle injection system, he course of the electric control signal can be selected freely in regard to the pulse edges (injection rate changes Q), the holding period (?t) and the injection rate (Q). This offers the advantage that the combustion process can be better optimized with respect to low emissions, low consumption and for meeting tightened legal regulations.
    Type: Application
    Filed: June 26, 2008
    Publication date: November 18, 2010
    Inventors: Jörg Beilharz, Uwe Lingener, Andreas Pfeifer, Richard Pirkl, Harald Schmidt, Klaus Wenzlawski, Hans-Jörg Wiehoff