Patents by Inventor Sune Ekdahl

Sune Ekdahl 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).

  • Device for biasing a cylinder drum of a variable-displacement axial piston machine against an associated slide valve member
    Patent number: 4920860
    Abstract: A device for biasing a cylinder drum in a variable-displacement axial piston machine against an associated slide valve member comprises a compression spring means, the axial piston machine having between the cylinder drum and the drive disk a synchronizing shaft which at each of its ends has a universal joint of the so-called tripoid type for angularly rigid but pivotable connection with the drum and disk, respectively, the synchronizing shaft furthermore being supported at each end approximately axially from the cylinder drum and drive disk, respectively, by a link pin.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: May 1, 1990
    Assignee: Volvo Hydraulik AB
    Inventors: Filip Alm, Sven Gulbrandsen, Bo Larsson, Sune Ekdahl