Patents by Inventor Christian Ribler

Christian Ribler 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 and apparatus for controlling a valve, and method and apparatus for controlling a pump-nozzle apparatus with the valve
    Patent number: 7275522
    Abstract: A valve has a piezoelectric actuator with a valve element, a valve body and a valve seat. In order to control the valve, the valve element is moved into the valve seat from a position remote from the valve seat by means of a charging process at a prescribable first time. A first value is determined being characteristic of the electrical power supplied to the piezoelectric actuator when the valve element meets the valve seat. A second value is determined being characteristic of the electrical power supplied to the piezoelectric actuator when the charging process of the piezoelectric actuator is concluded. An actual difference value between the second value and the first value is determined. A difference between a setpoint difference value and the actual difference value is supplied to a controller. An actuating signal for charging the piezoelectric actuator is determined as a function of the actuating variable.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: October 2, 2007
    Assignee: Siemens AG
    Inventors: Jörg Beilharz, Maximilian Kronberger, Richard Pirkl, Christian Ribler, Harald Schmidt, Hans-Jörg Wiehoff
  • Method and apparatus for controlling a valve, and method and apparatus for controlling a pump-nozzle apparatus with the valve
    Publication number: 20060289670
    Abstract: A valve has a piezoelectric actuator with a valve element, a valve body and a valve seat. In order to control the valve, the valve element is moved into the valve seat from a position remote from the valve seat by means of a charging process at a prescribable first time. A first value is determined being characteristic of the electrical power supplied to the piezoelectric actuator when the valve element meets the valve seat. A second value is determined being characteristic of the electrical power supplied to the piezoelectric actuator when the charging process of the piezoelectric actuator is concluded. An actual difference value between the second value and the first value is determined. A difference between a setpoint difference value and the actual difference value is supplied to a controller. An actuating signal for charging the piezoelectric actuator is determined as a function of the actuating variable.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 28, 2006
    Inventors: Jorg Beilharz, Maximilian Kronberger, Richard Pirkl, Christian Ribler, Harald Schmidt, Hans-Jorg Wiehoff