Patent · US Expired

Fluid operated oscillation damper

US5651433A · kind A · utility

89Cited by

3References

79Claims

0Family size

Assignee

Fichtel & Sachs · DE

Inventors

Alfred Wirth · Schweinfurt, DE
Andreas Forster · Schweinfurt, DE
Gunther Handke · Euerbach, DE
Andreas Zietsch · Röthlein, DE

Key dates

Filing date	Jul 11, 1995
Grant date	Jul 29, 1997
Priority date	—
Expiry date	Jul 11, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/7047
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A fluid oscillation damper is provided with an electromagnetically controlled valve for varying the damping force of the oscillation damper. The electromagnetically controlled valve is housed within a compartment confined by two housing parts. A first housing part is fastened to a container of the oscillation damper A second housing part is fastened to the first housing part. Both housing parts are nonreleasably interconnected. The electromagnetically controlled valve is actuated by an electromagnetic coil. The electromagnetic coil is provided with a ferromagnetic core. This ferromagnetic core is constituted by a plurality of components. These components are assembled so as to reduce the magnetic resistance for the magnetic flux.

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