Flexible anti-vibration support structure for engine overhung exhaust pipe

The flexible seismic support structure, designed with multi-layered support plates and cover plates, solves the fatigue fracture problem of cantilever exhaust pipes under wide-frequency vibration, achieves a balance between the flexibility and stiffness of the support, reduces the risk of resonance, extends service life and improves reliability.

CN122190881APending Publication Date: 2026-06-12CHINA NORTH ENGINE RES INST
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NORTH ENGINE RES INST
Filing Date
2026-04-06
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing engine cantilever exhaust pipe brackets are prone to fatigue fracture under wide frequency vibration environments, have poor vibration absorption capacity, and have a high risk of local stress concentration, making them unsuitable for vibration conditions of different frequencies.

Method used

The design employs a multi-layered, unidirectionally stacked support plate design, combined with an upper and lower cover plate interlocking structure. The support plates allow for slight relative displacement to absorb vibration energy. The support plates are made of spring steel or high-temperature resistant alloy and are fixed by welding or riveting.

Benefits of technology

It achieves flexible seismic resistance of the support under wide frequency vibration, reduces the risk of resonance, extends service life, and improves system reliability. At the same time, the structure is simple and easy to promote and apply.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122190881A_ABST
    Figure CN122190881A_ABST
Patent Text Reader

Abstract

The present application relates to a kind of flexible anti-vibration support structures for engine cantilever exhaust pipe, including multiple identical support sheets, upper cover plate and lower cover plate.Support sheet is overlapped in the same direction to form a multi-layer structure, and the upper cover plate and the lower cover plate are buckled at the waist position of the support heavy type.The present application improves the flexible anti-vibration capacity of the support by multi-layer thin-wall design, adapts to the wideband vibration of the engine;At the same time, the cover plate is buckled in the local to enhance the strength, and the shock-absorbing property is retained.The structure effectively prolongs the service life of the support, and improves the reliability of the engine operation.
Need to check novelty before this filing date? Find Prior Art