Passive Vehicle Cooling Device Using Venturi Effect
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Solution Overview
Problem
Current vehicle air conditioning systems require a power source and moving parts, limiting their ability to cool the passenger compartment when the engine is off and increasing fuel consumption.
Innovation Solution
A non-powered, funnel-shaped or bottle-shaped cooling device with high heat capacitance units and spacers that utilize the Venturi effect and Bernoulli's principle to cool air without electricity, adhered to vehicle surfaces to draw in hot air and expel cooled air, creating a continuous micro convection current.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If current auto air conditioning systems are used, then cooling is provided while the engine is running, but the systems require power sources and moving parts, increasing fuel consumption and device complexity
Solution Approach 1:
The patent extracts and eliminates the power source and moving parts from the cooling system, retaining only the essential cooling function through passive thermal management components
Solution Approach 2:
The cooling system operates autonomously using natural convection and phase change materials, requiring no external power input or mechanical actuation
2Temperature
If current auto air conditioning systems are used, then cooling is provided, but no cooling is available once the engine is turned off
Solution Approach 1:
The system pre-cools the passenger compartment while the engine is running, storing cooling capacity in phase change materials that continue to provide cooling after the engine stops
Solution Approach 2:
Phase change materials absorb and release thermal energy during phase transitions, enabling the system to store cooling capacity and discharge it later without requiring continuous power
3Temperature
If powered exhaust fans are used to cool the passenger compartment with the engine off, then cooling is provided, but a power source is required
Solution Approach 1:
The cooling system operates autonomously using natural convection currents and thermal storage, requiring no external power input or mechanical actuation
Solution Approach 2:
The patent replaces mechanical fan-driven air movement with passive natural convection currents generated by temperature differences within the system
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 vehicle interior without power or moving parts, reducing interior temperature by up to 50 degrees Fahrenheit and maintaining a temperature close to outside air temperature, even when the engine is off, while also reducing the workload on the vehicle's air conditioner.
Implementation Method 1
A non-powered, funnel-shaped or bottle-shaped cooling device with high heat capacitance units and spacers that utilize the Venturi effect and Bernoulli's principle to cool air without electricity
Implementation Method 2
A non-powered, funnel-shaped or bottle-shaped cooling device with high heat capacitance units and spacers that utilize the Venturi effect and Bernoulli's principle to cool air without electricity
Implementation Method 3
A non-powered, funnel-shaped or bottle-shaped cooling device with high heat capacitance units and spacers that utilize the Venturi effect and Bernoulli's principle to cool air without electricity
Implementation Method 4
A non-powered, funnel-shaped or bottle-shaped cooling device with high heat capacitance units and spacers that utilize the Venturi effect and Bernoulli's principle to cool air without electricity, adhered to vehicle surfaces to draw in hot air and expel cooled air, creating a continuous micro convection current
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.