Damping valve, in particular for a vibration damper

Patent metadata

Field	Value
Publication number	US-10746249-B2
Application number	US-201716099561-A
Country	US
Kind code	B2
Filing date	Apr 18, 2017
Priority date	May 20, 2016
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

A damping valve includes a damping valve body having at least one throughflow orifice which is at least partially covered by at least one valve disk by the action of a closing force. At least one spring body exerts an opening force on the valve disk that is less than the closing force. The at least one spring body is constructed as an elastomeric body separately from the control edge.

First claim

The invention claimed is:

1. A damping valve comprising:
at least one valve disk having a closing force;
a damping valve body having at least one throughflow orifice and a control edge which is at least partially covered by the action of the closing force of the at least one valve disk;
at least one spring body exerting an opening force on the valve disk that is less than the closing force of the at least one valve disk, and wherein the at least one spring body is constructed as an elastomeric body separately from the control edge and the at least one elastomeric body is constructed as a ball.

2. The damping valve according to claim 1 , wherein the at least one elastomeric body is directly connected to the damping valve body.

3. The damping valve according to claim 1 , wherein the damping valve body has an annular groove defined by two spaced-apart control edges, and wherein the at least one elastomeric body is arranged in the annular groove.

4. The damping valve according to claim 2 , wherein the damping valve body has a receiving opening for the at least one elastomeric body.

5. The damping valve according to claim 1 , wherein the damping valve body comprises a pre-choke disk having pre-choke orifices, and wherein the pre-choke disk carries the at least one elastomeric body.

6. The damping valve according to claim 1 , wherein the damping valve comprises a plurality of elastomeric bodies and wherein the elastomeric bodies are connected to one another via an elastomeric ring.

7. The damping valve according to claim 5 , wherein the elastomeric ring comprises the pre-choke orifices.

8. The damping valve according to claim 1 , wherein the elastomeric body is constructed as a tubular body forming the at least one throughflow orifice.

9. The damping valve according to claim 1 , wherein the damping valve comprises a plurality of elastomeric bodies and wherein the elastomeric bodies have a variable opening force.

10. The damping valve according to claim 1 , wherein the damping valve comprises a plurality of elastomeric bodies and wherein the elastomeric bodies have a variable spring rate.

11. The damping valve according to claim 3 , wherein the damping valve comprises a plurality of elastomeric bodies and wherein the elastomeric bodies are arranged asymmetrically along the circumference of the annular groove.

12. The damping valve according to claim 1 , wherein the damping valve comprises a plurality of elastomeric bodies and wherein the elastomeric bodies are arranged on different pitch circles.

13. The damping valve according to claim 12 , wherein the elastomeric bodies form an oblique plane.

14. A damping valve comprising:
at least one valve disk having a closing force;
a damping valve body having at least one throughflow orifice and a control edge which is at least partially covered by the action of the closing force of the at least one valve disk;
at least one spring body exerting an opening force on the valve disk that is less than the closing force of the at least one valve disk, and wherein the at least one spring body is constructed as an elastomeric body separately from the control edge, and the at least one elastomeric body is constructed as a ball, wherein the damping valve body comprises a pre-choke disk having pre-choke orifices, and wherein the pre-choke disk carries the at least one elastomeric body.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Knezevic Aleksandar
• Rösseler Jörg

Classifications

• F16F2226/044

  Snapping · CPC title

• F16F2226/04

  Assembly or fixing methods; methods to form or fashion parts · CPC title

• F16F9/3415 Primary

  characterised by comprising plastics, elastomeric or porous elements · CPC title

• F16F9/3484 Primary

  characterised by features of the annular discs per se, singularly or in combination · CPC title

• F16F2224/025

  Elastomers · CPC title