Patents Assigned to Denison Hydraulik GmbH
  • Patent number: 5503365
    Abstract: A directly controlled hydraulic pressure valve includes a valve housing and an outer valve sleeve which is placed in a port of the valve housing. The port is closed by a cover. A cylindrical inflow component is arranged in the interior of the valve sleeve. The inflow component has a first portion whose diameter is smaller than the internal diameter of the valve sleeve and a second portion having a greater diameter, wherein the outer valve sleeve rests with its end face against the second portion. The pressure valve further includes a cup-shaped tubular piston which is longitudinally movably arranged in an annular space between the valve sleeve and the inflow component, wherein the bottom of the tubular piston is located remote from the second portion. An annular groove is formed in the first portion of the inflow component. Axially extending inflow ducts are provided in the end face of the second portion of the inflow component.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 2, 1996
    Assignee: Denison Hydraulik GmbH
    Inventors: Wolfgang Backe, Christoph Latour, Bernd Killing