Patents by Inventor Jochen SCHAAB

Jochen SCHAAB 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 Control Device for Variable Rotational Speed Control of a Displacement Pump Unit and Displacement Pump Arrangement
    Publication number: 20130251540
    Abstract: A displacement pump arrangement, method for operating the displacement pump arrangement and a control device for controlling the displacement pump arrangement provide rotational-speed-variable control of an expeller pump unit for feeding a fluid. The arrangement includes an expeller pump and a drive, the drive being composed of an electric drive motor and a frequency converter, and a control device. The control device controls a state value such as a final pressure of the expeller pump a setpoint value. The control device detects state values of a control variable are supplied by the drive, in particular relating to the position, rotational speed and torque of the drive motor, and adjusts the displacement pump output to reach the setpoint value without using sensors.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Applicant: KSB Aktiengesellschaft
    Inventors: Thomas PAULUS, Jochen SCHAAB