Engine Cooling Capsule Using Intake Negative Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cooling devices fail to effectively cool engines during idling states, leading to potential component damage and fuel evaporation issues due to inadequate heat dissipation.
Innovation Solution
A cooling device with a surrounding member, air inlet, air outlet, and flow-path-formation mechanism that utilizes outside air circulation via a valve control system, leveraging negative intake pressure to direct air flow when the engine temperature exceeds a predetermined threshold, even during idling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the engine is surrounded by a sound-absorbing capsule, then noise is reduced, but heat discharge is hindered
Solution Approach 1:
The capsule is segmented by providing separate communication holes: first communication holes for sound absorption and second communication holes for heat dissipation. This segmentation allows the capsule to simultaneously achieve noise reduction through the sound-absorbing material while maintaining heat discharge pathways through dedicated openings that bypass the insulating material.
2Temperature
If an active air flap is used to control the air inlet, then cooling is achieved during vehicle travel, but cooling fails during idling state
Solution Approach 1:
The system uses the engine's own operating characteristics (intake manifold negative pressure during idling) to drive the cooling air flow without requiring external active control mechanisms. The negative pressure generated by the engine during idling automatically opens the second communication holes and drives cooling air through the capsule, enabling self-regulated cooling that adapts to different operating conditions.
3Adaptability or versatility
If additional cooling devices are added to enable idling cooling, then cooling coverage is improved, but device complexity increases
Solution Approach 1:
The intake manifold is given multiple functions: it serves both as part of the engine's air intake system and as a cooling air source during idling. The second communication holes serve dual purposes of enabling both cooling airflow and maintaining structural integrity of the capsule. This multi-functionality eliminates the need for separate cooling devices while achieving comprehensive cooling coverage.
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
Effectively cools the engine during idling states, preventing component damage and fuel evaporation, while reducing the need for additional cooling devices and minimizing dust introduction into the combustion chamber.
Implementation Method 1
leverages negative intake pressure to direct air flow when the engine temperature exceeds a predetermined threshold
Implementation Method 2
a technology of causing an engine to be surrounded by a capsule formed from a sound-absorbing material
Data Source
AI summary
A cooling device includes a surrounding member, an air inlet, an air outlet, and a flow-path-formation mechanism. The surrounding member is configured to surround an engine. The air inlet is formed in the surrounding member. The air outlet is formed in the surrounding member and is to be coupled to an intake pipe of the engine. The flow-path-formation mechanism is configured to form a flow path that allows outside air to circulate to the air outlet from the air inlet when a temperature of the engine or a temperature inside the surrounding member is greater than or equal to a predetermined temperature.