A variable diameter cylinder damper
By setting multiple stroke sections with different inner diameters and piston assemblies on the inner wall of the shock absorber cylinder, adaptive graded adjustment of damping force is achieved, which solves the problem of the single damping characteristics of existing shock absorbers, simplifies the structure, reduces costs, and improves the reliability and stability of the system under harsh working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG CHUANSHENG TECH CO LTD
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing shock absorbers have a single damping characteristic and cannot be adaptively adjusted according to the stroke position. The damping force is too large during low-speed vibration and insufficient during high-speed impact. In addition, they have a complex structure, high cost, are easily affected by harsh working conditions, lack a flexible buffer structure, and are prone to cavitation and pressure fluctuations in oil flow.
The variable-diameter cylinder damper is adopted. By setting multiple stroke sections with different inner diameters on the inner wall of the cylinder, and combining the piston assembly with the flow valve and the recovery valve, the damping force can be adaptively and gradedly adjusted. Geometric parameters are converted into physical parameters. The pure mechanical structure does not require electronic control. Combined with the design of the transition section and the throttling guide hole, the sudden change of oil pressure and cavitation phenomenon are avoided.
It achieves adaptive graded adjustment of damper damping force, taking into account both low-speed vibration isolation comfort and high-speed impact buffering, simplifies the structure, reduces costs, improves system reliability and stability, avoids damping force jumps and cavitation phenomena, and ensures the smoothness of the vibration reduction process.
Smart Images
Figure CN122407720A_ABST