Patents by Inventor Bernhard Blaettel

Bernhard Blaettel 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).

  • Flow pump for feeding fuel from a supply container to internal combustion engine of a motor vehicle
    Patent number: 5807068
    Abstract: The flow pump has an impeller (22), revolving in a pump chamber, which on each of its two axially oriented face ends (28, 29), has one ring of vanes (30) between which interstices (31) are located, and which cooperates with a feed channel (34) associated with the vanes (30) for pumping the fuel. When viewed in the radial direction relative to the rotary axis (24) of the impeller (22), the vanes (30) are positioned obliquely with respect to the rotary axis (24) in such a way that they lead ahead in the circumferential direction (21) of the impeller (22) toward the face end (28, 29) of the impeller (22). The vanes (30) and the rotary axis (24) of the impeller (22) form an angle (.alpha.) of between 25.degree. and 70.degree. that is oriented in the circumferential direction (21) of the impeller (22).
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 15, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Dobler, Michael Huebel, Willi Strohl, Jochen Rose, Bernhard Blaettel