Patent · US Expired

Shock absorber assembly with operationally controlled hydraulic-mechanical damping system

US4312499A · kind A · utility

15Cited by

5References

14Claims

0Family size

Assignee

Fichtel & Sachs · DE

Inventors

Felix Wossner
Hermann Itzinger · Dittelbrunn, DE
Gunther Handke · Euerbach, DE
Wilhelm Koch · Bongard, DE

Key dates

Filing date	Jan 24, 1980
Grant date	Jan 26, 1982
Priority date	—
Expiry date	Jan 24, 2000

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/49
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A shock absorber assembly including a cylinder having a piston and piston rod mechanism movable relative thereto is formed with a hydraulic-mechanical damping system interposed in an annular space defined between the piston rod and the cylinder. The damping characteristics of the system are varied in accordance with the relative movement of the piston rod out of the cylinder by a damping mechanism which includes a spring, an annular member and a damping component operating to vary the cross-sectional area of the damping passage defined therethrough.

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