Patents by Inventor Christian Rissler

Christian Rissler 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).

  • Method for determining a closing time of a closing element and circuit arrangement
    Patent number: 7413160
    Abstract: In a method for determining the closure time for a valve, operated by a piezoelectric actuator, in order to record the closing time, the voltage at the piezoelectric actuator is recorded and the time is recorded at which the voltage has a maximum difference value from a comparison curve. The difference curve is generated between a start and an end point for a measured curve, having the voltage values applied to the piezoelectric actuator. A precise determination of the closing time can thus be carried out.
    Type: Grant
    Filed: March 26, 2005
    Date of Patent: August 19, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jörg Beilharz, Sven Rebeschiess, Christian Rissler, Hans-Jörg Wiehoff
  • Method and Injection System for Injecting a Fluid
    Publication number: 20080087748
    Abstract: A method for injecting a fluid, in particular a fuel, performs the following steps: A nozzle (1) which can be actuated by a piezo element (5) is provided. A current pulse (12a) is supplied to the piezo element (5). The capacity (16) of the piezo element (5) is recorded at the time when the current pulse (12a) is supplied. An actual characteristic curve of the injection is recorded based on the capacity (16). The current pulse (12a) is regulated in order to optimize the injection based on the actual characteristic curve of the injection.
    Type: Application
    Filed: May 30, 2007
    Publication date: April 17, 2008
    Inventors: Jorg Beilharz, Nicholas Nozeran, Richard Pirkl, Christian Rissler, Harald Schmidt, Hans-Jorg Wiehoff
  • Method For Determining A Closing Time Of A Closing Element And Circuit Arrangement
    Publication number: 20070251492
    Abstract: In a method for determining the closure time for a valve, operated by a piezoelectric actuator, in order to record the closing time, the voltage at the piezoelectric actuator is recorded and the time is recorded at which the voltage has a maximum difference value from a comparison curve. The difference curve is generated between a start and an end point for a measured curve, having the voltage values applied to the piezoelectric actuator. A precise determination of the closing time can thus be carried out.
    Type: Application
    Filed: March 26, 2005
    Publication date: November 1, 2007
    Inventors: Jorg Beilharz, Sven Rebeschiess, Christian Rissler, Hans-Jorg Wiehoff