Patent · US Expired

Vibration damper, for a motor vehicle, with adjustable damping force

US6044939A · kind A · utility

14Cited by
6References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 19, 1997
Grant dateApr 4, 2000
Priority date
Expiry dateJun 19, 2017

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16F9/50
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The cylinder is filled with damping medium. The vibration damper also includes a damping valve which is active as a function of pressure. The damping force of the damping valve can be modified by means of an actuator against a spring force on a shutoff valve body. An admission valve with its own damping action is connected hydraulically in series with the damping valve, so that the action of the admission valve is superimposed on the action of the adjustable damping valve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.