Active Engine Mount Vent Hole for Heat Dissipation

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Solution Overview

Problem

Conventional active engine mounts face issues with high temperature heat generation and air expansion due to sealed interior spaces, leading to reduced durability and driving efficiency.

Innovation Solution

Incorporating a vent hole in the damper assembly to allow air inside the engine mount to be discharged outside, with a purification filter to prevent foreign substances from entering, which enables air circulation and minimizes internal heat generation and air expansion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the interior space of the engine mount is sealed, then vibration control performance is improved, but heat accumulation and air expansion occur causing reduced durability and driving efficiency

Engineering Contradiction:
ImprovedurabilityVSAvoidinternal heat generation
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The patent extracts the harmful element (air) from the sealed interior space by introducing a vent hole that allows air to be discharged to the outside. This extraction prevents air expansion and heat accumulation while maintaining the sealed structure's vibration control function, directly resolving the contradiction between reliability and temperature control.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If the interior space of the engine mount is sealed, then vibration control performance is improved, but air expansion decreases driving efficiency

Engineering Contradiction:
Improvedriving efficiencyVSAvoidair expansion
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The vent hole structure extracts accumulated air from the interior space, preventing air expansion that would otherwise reduce driving efficiency. The purification filter simultaneously prevents foreign substances from entering, maintaining system performance while enabling continuous operation.

Inventive Principle:
Principle #2Taking out (Extraction)

3Temperature

If a vent hole is added to discharge air, then heat generation and air expansion are reduced, but device complexity increases due to additional components

Engineering Contradiction:
Improveinternal heat generationVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent merges the vent hole function with the existing purification filter structure, combining air discharge and foreign substance filtration into a single integrated component. This merging approach enables heat dissipation and air expansion prevention without significantly increasing device complexity, as the filter structure already provides a suitable platform for these functions.

Inventive Principle:
Principle #5Merging (Combining)

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 solution effectively reduces internal heat generation and air expansion, enhancing the durability of components and driving efficiency while maintaining performance and reducing manufacturing complexity and costs.

Implementation Method 1

the vent hole is formed to penetrate the exciting unit, the driving unit, and the partition... so that air inside the damper assembly can be discharged to the outside

Methodology Applied
Scientific EffectAir circulation: Convection

Implementation Method 2

The damper assembly may include a purification filter which is provided at the vent hole to filter a foreign substance introduced from the outside

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 3

an active engine mount which vibrates an exciter through an electrical control... The damper assembly in the active engine mount which controls pressure of a main chamber as the exciter is excited

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS10047821B2Active engine mount having vent hole
Publication Date: 2018.08.14 PYUNG HWA IND CO LTD
  • US10047821B2 patent drawing
  • US10047821B2 patent drawing
  • US10047821B2 patent drawing

AI summary

Provided is an active engine mount having a vent hole that includes a damper assembly including an exciter. The damper assembly in the active engine mount which controls pressure of a main chamber as the exciter is excited has a vent hole that enables communication from a lower part of the exciter to the outside formed thereon such that air inside the damper assembly can be discharged to the outside.