Variable Speed Air Intake Fan for Engine Efficiency
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Solution Overview
Problem
Conventional superchargers for internal combustion engines face issues such as excessive air volume leading to fuel wastage and incomplete combustion, noise during idle states, and inefficient power enhancement at low speeds due to uncontrolled fuel injection and inefficient turbine operation.
Innovation Solution
An energy-saving device with a control box, battery, operation setting system, and car speed sensor assembly that regulates the rotation speed of an air intake fan motor based on car speed, optimizing air flow rate without increasing engine speed or fuel injection, thereby preventing carbon deposits and enhancing engine efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional mechanic supercharger is used to increase air volume, then the working efficiency of the internal combustion engine is enhanced, but the fuel consumption increases due to incomplete combustion
Solution Approach 1:
The patent applies dynamics by making the air intake fan's rotation speed adjustable and variable based on operating conditions. The control unit dynamically regulates the fan speed to match actual engine needs, preventing excessive air intake that causes incomplete combustion and fuel waste, while still enhancing working efficiency when needed.
Solution Approach 2:
The patent changes the parameter of air flow rate by controlling the rotation speed of the air intake fan. By adjusting this parameter according to actual operating conditions through the control unit, the system optimizes the balance between enhancing engine efficiency and preventing fuel waste from incomplete combustion.
2Productivity
If the conventional mechanic supercharger operates continuously to maintain air flow, then the engine performance is sustained, but noise is generated during idle states
Solution Approach 1:
The system dynamically adjusts the air intake fan's operation based on real-time conditions detected by sensors. During idle states, the control unit reduces or stops fan operation to eliminate noise, while maintaining engine performance readiness. This dynamic control allows the system to sustain performance capability without continuous operation that generates noise.
Solution Approach 2:
The control unit automatically regulates the air intake fan operation based on signals from detection units that monitor engine conditions. This self-service control eliminates the need for continuous operation during idle states, thereby preventing noise generation while maintaining the ability to sustain engine performance when needed.
3Speed
If a conventional turbine-type supercharger is used, then the air flow rate is increased at high speeds, but the turbine cannot rotate efficiently at lower rotation speeds causing air intake delay
Solution Approach 1:
The patent replaces the turbine-type supercharger's mechanical system (which relies on waste gas to rotate the turbine) with an electrically driven air intake fan. This substitution eliminates the air intake delay at lower speeds because the electric fan can be immediately activated by the control unit without depending on waste gas flow or turbine rotation efficiency.
Solution Approach 2:
The system performs preliminary action by having the control unit proactively control the air intake fan based on predicted or detected engine conditions. Rather than waiting for waste gas to drive a turbine, the control unit can immediately activate the fan to provide air flow, eliminating delays and ensuring air intake is available whenever needed regardless of engine speed.
4Quantity of substance
If the air intake fan rotation speed is not regulated, then the air volume is sufficient for high speed driving, but the injected fuel volume cannot be controlled exactly leading to energy waste
Solution Approach 1:
The patent implements feedback control through detection units that monitor engine conditions and feed information to the control unit. Based on this feedback, the control unit precisely regulates the air intake fan's rotation speed to match actual air demand, ensuring that air volume is sufficient for high-speed driving while preventing excessive air intake that would cause fuel waste and incomplete combustion.
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 efficiently increases air intake and prevents carbon deposits, ensuring complete fuel burn and improved engine efficiency, allowing cars to travel further on the same fuel volume while reducing noise and enhancing power delivery.
Implementation Method 1
The air intake fan motor drives and rotates an air intake fan
Data Source
AI summary
An energy saving device includes a control box, a battery, an operation setting system, a car speed sensor assembly, and an air intake fan motor. Thus, the IC chip of the car speed sensor assembly identifies the car speed information detected by the five car speed sensors of the car speed sensor assembly, and transmits the car speed information to the IC circuit board of the control box, and the IC circuit board controls and regulates the rotation speed of the air intake fan motor according to the grades of the car speed preset by the operation setting system, such that the rotation speed of the air intake fan motor increases the air flow rate by a grade when the car speed is increased by a predetermined constant value.