Patents by Inventor Steffen Kellner

Steffen Kellner 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).

  • Hybrid driven double pump
    Patent number: 11199122
    Abstract: A hybrid-driven dual pump for conveying a coolant for a combustion engine, is proposed. The dual pump comprises: a first pump assembly with a first pump impeller, a first spiral housing and a first pump shaft driven via a mechanical drive connection by a combustion engine; a second pump assembly with a second pump impeller, a second spiral housing, a second pump shaft and an electric drive; a joint pump housing enclosing the first pump assembly and the second pump assembly with a joint pump inlet and a joint pump outlet; and a flap arranged freely pivotably between an outlet of the first spiral housing and an outlet of the second spiral housing such that a direct flow connection between the first spiral housing and the second spiral housing is blocked.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 14, 2021
    Assignee: NIDEC GPM GmbH
    Inventors: Steffen Kellner, Sandro Schunk
  • HYBRID DRIVEN DOUBLE PUMP
    Publication number: 20200392890
    Abstract: A hybrid-driven dual pump for conveying a coolant for a combustion engine, is proposed. The dual pump comprises: a first pump assembly with a first pump impeller, a first spiral housing and a first pump shaft driven via a mechanical drive connection by a combustion engine; a second pump assembly with a second pump impeller, a second spiral housing, a second pump shaft and an electric drive; a joint pump housing enclosing the first pump assembly and the second pump assembly with a joint pump inlet and a joint pump outlet; and a flap arranged freely pivotably between an outlet of the first spiral housing and an outlet of the second spiral housing such that a direct flow connection between the first spiral housing and the second spiral housing is blocked.
    Type: Application
    Filed: April 2, 2019
    Publication date: December 17, 2020
    Inventors: Steffen Kellner, Sandro Schunk