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Damping valve arrangement with a multistage damping force characteristic

A technology of damping valve and shock absorber, applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve problems such as difficulty in finding

Inactive Publication Date: 2015-09-30
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This compromise is difficult to find in shock absorbers with conventional damping valve assemblies that are not electronically adjustable by means of actuators

Method used

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  • Damping valve arrangement with a multistage damping force characteristic
  • Damping valve arrangement with a multistage damping force characteristic
  • Damping valve arrangement with a multistage damping force characteristic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 An exemplary embodiment variant of the damping valve assembly with a multi-stage damping force characteristic curve according to claim 1 is shown.

[0023] The shown damping valve device 1 comprises a main valve body 2 , a first auxiliary valve body 3 and a second auxiliary valve body 4 , a plurality of hydraulic parallel flow passages 5 a , 5 b , 6 a for the flow direction of the damping medium , 6b, 6c. The outlet cross sections 7 a , 7 b , 8 a , 8 b of the throughflow channels 5 a , 5 b , 6 a , 6 b , 6 c are each influenced by at least one valve disk 9 , 10 , 11 . The valve bodies 2 , 3 , 4 are fixed axially on a common carrier 12 , wherein the carrier 12 extends through the valve bodies 2 , 3 , 4 . exist figure 1 and figure 2 In the illustrated embodiment, the piston rod journal 24 of the piston rod 25 assumes the function of the carrier 12 .

[0024] In this case, the position of the valve bodies 2 , 3 , 4 is chosen such that the main valve body 2 is...

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Abstract

A damping valve arrangement for a vibration damper has a main valve body, a first auxiliary valve body and a second auxiliary valve body with at least two through-flow channels connected hydraulically in parallel for a flow direction of a damping medium. Outlet cross sections of the at least two through-flow channels are influenced by at least one valve disk. The valve bodies are axially fastened to a shared support that extends through the valve bodies and at least one through-flow channel is formed at the support. A first auxiliary valve including the first auxiliary valve body and at least a first valve disk and a second auxiliary valve including the second auxiliary valve body and a, separate valve disk connected through a shared through-flow channel and are hydraulically connected in series such that the amount of damping medium flowing through the second auxiliary valve is limited by the first auxiliary valve.

Description

technical field [0001] The invention relates to a damping valve assembly with a multi-stage damping force characteristic curve according to claim 1 . Background technique [0002] The purpose of shock absorbers in motor vehicles is to dampen vibrations induced by uneven road surfaces. Here, a compromise must always be found between driving safety and driving comfort. A shock absorber whose damper valve assembly is set stiffly and has a high damping force characteristic is optimal for high driving safety. If high comfort requirements are to be met, the damper valve assembly should be designed as soft as possible. This compromise is difficult to find in shock absorbers with conventional damping valve assemblies that are not adjustable electronically by means of an actuator. [0003] A damping valve arrangement with a multistage damping force characteristic curve is known from DE 20 22 021 A1, which has at least four damping force characteristic curve regions. These damping...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/34
CPCF16F9/348F16F9/3485F16F9/512
Inventor T·艾兴穆勒R·莫勒M·特罗伊伯特U·马克特
Owner ZF FRIEDRICHSHAFEN AG