Engine Mount Anti-Vibration Material for Heat-Stable Dispersion

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Solution Overview

Problem

Existing anti-vibration materials in engine mounts lack high-temperature durability and dispersibility, which are crucial for enhancing the livability and safety of automobiles.

Innovation Solution

An anti-vibration material comprising a clay mineral, such as hectorite, and a solvent with a polyhydric alcohol content of 35% to 55% by mass, particularly ethylene glycol, is used to enhance high-temperature durability and dispersibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional anti-vibration materials are used in engine mounts, then vibration reduction function is provided, but high-temperature durability and dispersibility are insufficient

Engineering Contradiction:
Improvehigh-temperature durabilityVSAvoiddispersibility
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent changes the chemical composition parameters of the solvent system by specifying a polyhydric alcohol content of 35-55% by mass and using polyhydric alcohols with molecular weight ≤106. This parameter optimization simultaneously achieves excellent high-temperature durability (preventing material degradation at engine operating temperatures) and superior dispersibility (ensuring uniform distribution of clay mineral particles), thereby resolving the technical contradiction between reliability and ease of manufacture.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite anti-vibration material system combining clay mineral particles with a specifically formulated solvent mixture containing polyhydric alcohol and water. This composite formulation leverages the synergistic effects of the clay mineral's vibration-damping properties and the polyhydric alcohol solvent's dual benefits of high-temperature stability and dispersion capability, simultaneously achieving both high-temperature durability and dispersibility.

Inventive Principle:
Principle #40Composite materials

2Temperature

If polyhydric alcohol content is increased to improve high-temperature durability, then thermal stability improves, but viscosity increases affecting dispersibility

Engineering Contradiction:
Improvehigh-temperature durabilityVSAvoidviscosity
Core Design Contradiction:
TemperatureVSForce

Solution Approach 1:

The patent optimizes the polyhydric alcohol content within the specific range of 35-55% by mass and selects polyhydric alcohols with molecular weight ≤106. This parameter control ensures the solvent has sufficient thermal stability for high-temperature durability while maintaining low enough viscosity to ensure excellent dispersibility of clay mineral particles, thereby resolving the contradiction between temperature resistance and viscosity.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The material achieves improved high-temperature durability and dispersibility, ensuring effective vibration reduction and noise isolation in engine mounts, thereby improving automobile livability and safety.

Implementation Method 1

a solvent, the solvent containing water and a polyhydric alcohol having a molecular weight of 106 or less

Methodology Applied
Scientific EffectSolvation: Solvation

Implementation Method 2

the solvent has a polyhydric alcohol content of 35% by mass or more and 55% by mass or less

Methodology Applied
Scientific EffectSteric stabilization:

Implementation Method 3

an anti-vibration material used in an engine mount includes: a clay mineral

Methodology Applied
Scientific EffectViscoelasticity: Viscoelasticity

Implementation Method 4

an anti-vibration material is encapsulated in an engine mount, thereby reducing the transfer of vibration and noise

Methodology Applied
Scientific EffectHysteresis: Hysteresis

Data Source

PatentUS12606448B2Anti-vibration material
Publication Date: 2026.04.21 HONDA MOTOR CO LTD
  • US12606448B2 patent drawing
  • US12606448B2 patent drawing
  • US12606448B2 patent drawing

AI summary

An anti-vibration material used in an engine mount is provided to include: a clay mineral; and a solvent, the solvent containing water and a polyhydric alcohol having a molecular weight of 106 or less, wherein the solvent has a polyhydric alcohol content of 35% by mass or more and 55% by mass or less.