Air springs and shock absorbers

By designing an air spring with a dual-chamber structure, combined with dual buffers and adjustable stiffness, the problem of stiffness variation of air springs under complex working conditions was solved, achieving better stability and comfort of the vehicle suspension system and overcoming the technical challenges of air springs in the prior art.

CN224433223UActive Publication Date: 2026-06-30SSI NEW MATERIAL (ZHENJIANG) CO LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SSI NEW MATERIAL (ZHENJIANG) CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In high-frequency vibrations, the stiffness of existing air springs is not sufficiently variable, which affects the stability and comfort of the vehicle suspension system. Existing technologies are unable to solve this problem.

Method used

An air spring with a dual-cavity structure and mutually coupled dual buffers can achieve a two-stage vibration reduction effect. By adjusting the volume of the first inner cavity and the volume of the second inner cavity, the stiffness and compression-stroke volume can be adjusted, making it suitable for a variety of complex working conditions.

Benefits of technology

It achieves a two-stage vibration reduction effect of air springs under complex working conditions, with adjustable stiffness and compression-rebound stroke, strong adaptability, and improved vehicle handling and stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224433223U_ABST
    Figure CN224433223U_ABST
Patent Text Reader

Abstract

This invention provides an air spring and a vibration damping device. The air spring includes a first outer shell, a second outer shell, a connecting rod, a piston, and a helical spring. The second outer shell forms a second inner cavity, which is a sealed cavity capable of being filled with high-pressure gas. The first outer shell is an open-end shell, with its open end fitted onto the upper part of the second outer shell. The first and second outer shells form the first inner cavity, which communicates with the outside. The piston is located within the second inner cavity. One end of the connecting rod is connected to the piston, and the other end passes through the second and first inner cavities and is located outside the first outer shell. The helical spring is located within the first inner cavity, with its two ends fixed to the upper surface of the first inner cavity and the outer surface of the top of the second outer shell, respectively. This air spring has a dual-cavity structure and mutually coupled dual buffers, achieving a two-stage vibration damping effect. Its stiffness and compression-rebound stroke are adjustable, making it suitable for various complex working conditions.
Need to check novelty before this filing date? Find Prior Art