Unlock instant, AI-driven research and patent intelligence for your innovation.

Frequency-dependent damping valve arrangement

A technology of damping valves and components, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve problems such as difficult to find, and achieve the effect of simple cost

Active Publication Date: 2019-04-26
ZF FRIEDRICHSHAFEN AG
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This compromise is only difficult to find in shock absorbers with conventional damping valve assemblies that cannot be adjusted electronically by means of an actuator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Frequency-dependent damping valve arrangement
  • Frequency-dependent damping valve arrangement
  • Frequency-dependent damping valve arrangement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 A section of a shock absorber for a motor vehicle with a frequency-dependent damping valve arrangement 1 according to the invention is shown in section.

[0023] The shock absorber comprises a cylinder 2 at least partially filled with a shock absorbing fluid.

[0024] The damping valve assembly 1 is arranged axially displaceably within the cylinder 2 and is fixed on a carrier 3 . The damping valve assembly 1 comprises a damping piston 4 having at least one non-return valve 5, wherein the non-return valve has at least one first flow channel 6 for a damping fluid embodied therein, the flow channel being controlled by At least one valve disc 7 covers.

[0025] The damping piston 4 inside the cylinder 2 separates the first working chamber 8 from the second working chamber 9, so that the ratio of the damping medium pressures in the two working chambers 8, 9 depends on the damping piston 4 in the cylinder 2. The direction of axial movement changes.

[0026] Furth...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A frequency-dependent damping valve arrangement (1) of a vibration damper for a motor vehicle is proposed, comprising: a damping piston (4), which is arranged inside at least one cylinder (2) at leastpartially filled with a damping fluid, is fixed axially to a carrier (3) and has a check valve (5); and a control arrangement (10), which is attached to the carrier (3) coaxially to the damping piston (4) and comprises a control pot (11), an axially displaceable control piston (16) in the control pot (11), and at least one spring arrangement (20) which is arranged between the control piston (16)and the check valve (5) and has at least one first spring element (21). The invention is characterised in that the control piston (16) has, between the radially outer edge (16a) thereof and the radially inner edge (16b) thereof, which faces the radial centre of the control piston (16), a height difference (16c) which defines a maximum deflection height of the first spring element (21).

Description

technical field [0001] The invention relates to a damping valve assembly for a shock absorber of a motor vehicle with a frequency-dependent damping force characteristic according to claim 1 . Background technique [0002] The purpose of shock absorbers in motor vehicles is to attenuate vibrations excited by uneven road surfaces. Here, a compromise must always be found between driving safety and driving comfort. For high driving safety, a shock absorber whose damper valve assembly is hardened and thus has a high damping force characteristic is optimal. If high comfort requirements are to be met, the damper valve assembly should be adjusted as softly as possible. In shock absorbers with conventional damping valve assemblies which cannot be adjusted electronically by means of an actuator, such a compromise is only difficult to find. [0003] A damping valve assembly of this type with a frequency-dependent damping force characteristic curve is known from DE 10 2014 210 704 . ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/348F16F9/512
CPCF16F9/512F16F9/3488F16F9/3485
Inventor A·福斯特
Owner ZF FRIEDRICHSHAFEN AG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com