Patents by Inventor Philipp Kenneweg

Philipp Kenneweg 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).

  • Inverter parameter based hydraulic system control device
    Patent number: 9828210
    Abstract: The present invention relates to a control device for pressure control in a hydraulic system, especially of an elevator-system, the control device is adapted to control an output variable of an inverter supplying a hydraulic pump of the hydraulic system with electric energy, the output variable is adapted to adjust the speed of the hydraulic pump in order to at least partly compensate for a leakage of operating fluid in the hydraulic pump. Further, the invention relates to an elevator-system that includes a hydraulic pump, an inverter, and a control device which controls a supply of the hydraulic pump with electric energy from the inverter.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: November 28, 2017
    Assignee: Yaskawa Europe GmbH
    Inventors: Kutay Ferhat Celik, Philipp Kenneweg
  • DEVICE AND METHOD FOR CONTROLLING A HYDRAULIC SYSTEM, ESPECIALLY OF AN ELEVATOR
    Publication number: 20150014099
    Abstract: The present invention relates to a control device for pressure control in a hydraulic system, especially of an elevator-system, the control device is adapted to control an output variable of an inverter supplying a hydraulic pump of the hydraulic system with electric energy, the output variable is adapted to adjust the speed of the hydraulic pump in order to at least partly compensate for a leakage of operating fluid in the hydraulic pump. Further, the invention relates to an elevator-system comprising a hydraulic pump, an inverter, and a control device which controls a supply of the hydraulic pump with electric energy from the inverter.
    Type: Application
    Filed: January 23, 2013
    Publication date: January 15, 2015
    Applicant: Yaskawa Europe GMBH
    Inventors: Kutay Ferhat Celik, Philipp Kenneweg