Patents by Inventor Johannes DÖRR

Johannes DÖRR 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).

  • Diagonal fan having an optimized diagonal impeller
    Patent number: 11542955
    Abstract: A diagonal fan having an electric motor and a diagonal impeller which can be driven about an axis of rotation (RA) by means of the electric motor. The diagonal impeller determines an air inlet and an air outlet and has a hub and impeller vanes which are distributed in the circumferential direction, extend radially outwards from the hub and are surrounded radially externally by a slinger ring. A flow angle ?D formed by the slinger ring relative to the axis of rotation (RA) increases from the air inlet to the air outlet, and a flow angle ?N formed by the hub relative to the axis of rotation (RA) decreases from the air inlet to the air outlet.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: January 3, 2023
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Oliver Haaf, Daniel Gebert, Johannes Dörr
  • DIAGONAL FAN HAVING AN OPTIMIZED DIAGONAL IMPELLER
    Publication number: 20220049715
    Abstract: A diagonal fan having an electric motor and a diagonal impeller which can be driven about an axis of rotation (RA) by means of the electric motor. The diagonal impeller determines an air inlet and an air outlet and has a hub and impeller vanes which are distributed in the circumferential direction, extend radially outwards from the hub and are surrounded radially externally by a slinger ring. A flow angle ?D formed by the slinger ring relative to the axis of rotation (RA) increases from the air inlet to the air outlet, and a flow angle ?N formed by the hub relative to the axis of rotation (RA) decreases from the air inlet to the air outlet.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 17, 2022
    Inventors: Oliver HAAF, Daniel GEBERT, Johannes DÖRR