发明申请
US20070068753A1 Damping valve device with progressive damping force 有权
具有渐进阻尼力的阻尼阀装置

  • 专利标题: Damping valve device with progressive damping force
  • 专利标题(中): 具有渐进阻尼力的阻尼阀装置
  • 申请号: US11508811
    申请日: 2006-08-23
  • 公开(公告)号: US20070068753A1
    公开(公告)日: 2007-03-29
  • 发明人: Klaus Schmidt
  • 申请人: Klaus Schmidt
  • 优先权: DE102005046276.6-12 20050927
  • 主分类号: F16F9/34
  • IPC分类号: F16F9/34
Damping valve device with progressive damping force
摘要:
A hydraulic vibration damper has a receiving pipe, a piston rod which projects into the receiving pipe at one end and which can be moved in an oscillating way in the receiving pipe, on the end, facing the receiving pipe, of which a working piston is disposed. The working piston comprises through-flow channels for the damping fluid which channels are effective in the pulling direction and pushing direction, and which working piston divides the inner chamber of the receiving pipe into a pulling chamber on the side of the piston rod and a pressure chamber remote from the piston rod, wherein at least a first through-flow channel can be covered to form a damping valve with a first resilient or spring-loaded valve washer which cooperates with a first valve seat. A pressure relief blow-off valve which comprises a blow-off function and opens when a predeterminable pressure level is achieved, has a first throttling site which produces progressively flowing damping force when there is increasing piston speed and whose throttling cross-section is variable depending on the piston speed of the vibration damper. In order to achieve a structurally simple construction and a low axial construction height of the valve, the pressure relief valve which has the blow-off function comprises a first annular washer allocated to the first valve washer, the first annular washer having a surface facing the first valve washer, the surface forming the variable first throttling site with the first valve washer.
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