Passive Vehicle Cooling via Bernoulli Funnel Units
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Solution Overview
Problem
Current vehicle air conditioning systems rely on power sources and moving parts, failing to provide cooling to the passenger compartment when the engine is off and increasing fuel consumption.
Innovation Solution
A non-powered cooling device comprising funnel units with large and small openings, adhered to vertical surfaces, utilizing the Venturi effect and high heat capacitance materials to cool air without external power or moving parts, creating a continuous air flow and convection current for effective cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If powered exhaust fans are used to remove heated interior air, then cooling effect is improved, but power source requirement and device complexity increase
Solution Approach 1:
The patent extracts the power source and moving parts from the cooling system, using only passive funnel units that rely on natural convection and the Bernoulli principle. The funnels are adhered to vertical surfaces and have no electrical components, motors, or control systems, thereby simplifying the device structure while maintaining cooling functionality.
Solution Approach 2:
The cooling device serves itself by utilizing natural physical phenomena (Bernoulli principle and convection currents) rather than requiring external power sources. The funnel units automatically create airflow through their geometric design, with hot air rising through the funnels and cooler air being drawn in to replace it, creating a self-sustaining cooling cycle.
2Temperature
If auto air conditioners with electric compressors and fans are used, then cooling performance is improved, but fuel consumption and engine power reduction increase
Solution Approach 1:
The patent replaces the mechanical air conditioning system (compressors, fans, electrical motors) with a passive geometric system based on fluid dynamics principles. The funnel units create airflow through their shape alone, utilizing the Bernoulli principle where faster-moving air over the funnel creates lower pressure that draws in cooler air, eliminating the need for mechanical compression and fan-driven airflow.
Solution Approach 2:
The cooling device utilizes pneumatic principles by harnessing air flow dynamics and pressure differentials created by the funnel geometry. The system exploits natural convection currents and the Bernoulli effect to move air through the vehicle interior without mechanical intervention, effectively using the vehicle's own airflow patterns to achieve cooling.
3Temperature
If conventional air conditioning systems are used, then cooling capability is improved, but operation when engine is off is worsened
Solution Approach 1:
The funnel-based cooling device operates autonomously without requiring the engine to be running or any external power source. It continuously exploits natural convection currents and air pressure differentials that exist whenever there is temperature variation inside the vehicle, making it adaptable to both engine-on and engine-off conditions equally effectively.
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 device effectively cools the vehicle interior without power or moving parts, maintaining a temperature close to outside air temperature, reducing the workload on the vehicle's air conditioner and fuel consumption, with increased cooling capacity by adding more units.
Implementation Method 1
Passive car cooling device using the Bernoulli principle
Implementation Method 2
a plurality of high heat capacitance units attached to the inside face of the large opening
Implementation Method 3
creating a continuous air flow and convection current for effective cooling
Data Source
AI summary
The invention is a device, system and method of use for cooling the temperature in the passenger compartment of a vehicle without the need for a power source or moving parts, thus allowing the device to operate when the vehicle engine is turned off.