Engine Mount Heat Radiating Device for Thermal Management
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Solution Overview
Problem
Existing engine mounts face issues with heat resistance, noise, vibration, and durability due to the limitations of natural rubber materials, especially when exposed to high temperatures, and silicone materials suffer from poor oil resistance and abnormal noise.
Innovation Solution
The engine mount design includes a mount housing with a partition device, a core that penetrates the partition, and a rubber member made of silicone, featuring a heat radiating device and a support bracket with stoppers to restrict movement, allowing for effective heat blocking and improved damping performance by controlling fluid flow between liquid chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If natural rubber material is used for the rubber member, then damping performance is improved, but heat resistance performance is limited and durability deteriorates due to degradation at high temperatures
Solution Approach 1:
The patent introduces a heat radiating device as an intermediary component between the heat source (turbocharger and WCC) and the rubber member. This device actively radiates heat away from the engine mount assembly, preventing heat accumulation and protecting the rubber member from thermal degradation while maintaining its damping properties
Solution Approach 2:
The patent divides the engine mount into functionally separate components: a heat radiating device for thermal management, a partition device for structural organization, and the rubber member for damping. This segmentation allows each component to optimize its specific function without compromising the others, enabling the rubber member to maintain damping performance while being protected from heat
2Temperature
If silicone material is used for the rubber member, then heat resistance performance is improved, but oil resistance deteriorates and abnormal noise occurs due to gas emission
Solution Approach 1:
The heat radiating device serves as a protective intermediary that actively manages thermal exposure to the rubber member. By maintaining the rubber member at lower temperatures, the device enables the use of silicone material (which requires thermal protection) while preventing the temperature-related degradation that would otherwise compromise durability and noise characteristics
Solution Approach 2:
The patent changes the operating temperature parameter of the rubber member through active heat radiation. By maintaining the rubber member at lower temperatures despite proximity to heat sources, the system enables the use of silicone material with its superior heat resistance while avoiding the temperature-induced issues that would cause oil resistance problems and abnormal noise
3Ease of operation
If the core protrudes upward from the engine mount for fastening to the engine bracket, then installation is enabled, but heat blocking performance deteriorates because heat can be transmitted to the rubber member
Solution Approach 1:
The heat radiating device acts as a thermal intermediary between the engine bracket area and the rubber member. It actively radiates heat away from this region, protecting the rubber member from heat transmitted through the core and fastening structure while maintaining the core's protrusion for installation purposes
Solution Approach 2:
The patent segments the fastening function (core protruding for bracket attachment) from the thermal management function (heat radiating device). This allows the core to fulfill its mechanical fastening role while the heat radiating device independently manages thermal exposure to the rubber member, resolving the conflict between installation capability and heat blocking performance
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
This configuration effectively blocks heat transfer from external sources, enhances durability, and reduces noise and vibration, while maintaining the silicone material's heat resistance and improving damping and sealing performance.
Implementation Method 1
heat is continuously transmitted (by radiation or convection) from the heat sources to a core 7 and an insulator 8
Implementation Method 2
heat is continuously transmitted (by radiation or convection) from the heat sources to a core 7 and an insulator 8
Implementation Method 3
a rubber mount which attenuates vibration by using elastic force of a rubber device
Implementation Method 4
a rubber mount which attenuates vibration by using elastic force of a rubber device
Implementation Method 5
a fluid-filled mount (hydraulic mount) which attenuates vibration by using an encapsulated hydraulic liquid
Data Source
AI summary
An engine mount apparatus may include a mount housing which has an internal space; a partition device which partitions the internal space into an upper space and a lower space; a nozzle plate which is provided in the upper space and allows a fluid to selectively pass through the nozzle plate; an upper diaphragm which is fastened to an upper surface of the nozzle plate and defines an upper liquid chamber; a core which penetrates the partition device, and has an upper portion disposed in the upper space, and a lower portion disposed in the lower space; a lower diaphragm which extends from the upper portion of the core to a lower surface of the nozzle plate, and defines a lower liquid chamber; and a rubber member which is provided in the upper space, and connects the upper portion of the core and the partition device.