Engine mount with large z-direction pre-load

CN224528418UActive Publication Date: 2026-07-21ASIMCO NVH TECH CO LTD ANHUI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ASIMCO NVH TECH CO LTD ANHUI
Filing Date
2025-07-30
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional Z-axis small preload mounts cannot meet the requirements of low stiffness at low frequencies and high stiffness at high frequencies for vehicles, and cannot guarantee bench durability and NVH performance.

Method used

A Z-axis large preload engine mount is designed. By adjusting the preload of the main spring to 8mm during installation and combining it with the structural optimization of components such as the outer bracket, main spring, and support arm, low stiffness at low frequencies and high stiffness at high frequencies are achieved. The durability and NVH performance are optimized through CAE simulation analysis.

Benefits of technology

It achieves the requirements of low stiffness at low frequencies and high stiffness at high frequencies for engine mounts, improving durability and NVH performance, enhancing ride comfort and powertrain stability, and extending the service life of the mounts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an engine suspension of Z direction big pre -pressing, including outer support, main spring and support arm, the one side of outer support is provided with the installation lack groove, the other side of outer support and is close to the upper segment position and is provided with the side through groove of intercommunication with installation lack groove, and the main spring interference press -fitted in the installation lack groove, still be provided with the connecting assembly of cooperation main spring use in the installation lack groove, and the pre -pressing amount of main spring when installing is h, and the numerical value of h is 8mm, and support arm interference press -fitted in the main spring, the utility model discloses the pre -pressing amount of main spring when installing is adjusted to 8mm, can satisfy the requirement of low stiffness when low frequency and high stiffness when high frequency of engine suspension, and satisfy low dynamic static ratio requirement, and the durability is good, and can promote NVH performance.
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