Peripheral Propulsion Vanes for Torque and Noise Reduction
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Solution Overview
Problem
Existing propulsion systems, such as traditional helicopters and multi-copters, suffer from significant power loss due to torque imbalances and noise generation during lift-off and landing, which affect efficiency and acoustic comfort.
Innovation Solution
A Peripheral Propulsion System (PPS) with a unique design featuring intake and output vanes that cancel torque and reduce noise, utilizing electric motors with a motor engagement section and blades positioned peripherally to enhance efficiency and reduce friction, combined with sound-absorbing materials to minimize noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional helicopter propulsion systems are used, then thrust is generated, but torque creation causes power loss and increased noise levels
Solution Approach 1:
The patent converts the harmful torque-induced air circulation into a beneficial effect by using the same rotational motion to drive blades that generate thrust. The torque that previously caused power loss and noise is now harnessed to rotate the blades in a controlled manner, transforming the harmful circular air flow into useful propulsion while canceling out the harmful torque effects.
Solution Approach 2:
The patent extracts the harmful torque effect from the propulsion system by introducing a counter-torque mechanism. The system separates the thrust generation function from the torque creation, allowing the blades to generate thrust while the counter-torque mechanism neutralizes the harmful rotational effects that cause power loss and noise.
2Productivity
If blades rotate outside the personnel section, then aerodynamics are enhanced, but the structure becomes more complex
Solution Approach 1:
The patent segments the propulsion system into distinct functional components: the personnel section, the rotating blades, and the counter-torque mechanism. This segmentation allows each component to be optimized independently - the blades are positioned outside the personnel section for optimal aerodynamics, while the counter-torque mechanism is integrated to manage the rotational effects, thereby achieving high aerodynamic efficiency without excessive overall complexity.
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 PPS achieves improved efficiency by reducing power loss and noise, allowing for quieter operations and compliance with regulatory noise levels, particularly during takeoff and landing.
Implementation Method 1
an intake section and an output section with vanes that direct fluid flow
Implementation Method 2
direct fluid flow in a way that cancels torque
Implementation Method 3
vanes that direct fluid flow in a way that cancels torque
Data Source
AI summary
A peripheral propulsion system having a propulsion unit, an upper section, and a lower section. The propulsion unit has a motor, a motor engagement section, an extension coupled to the motor engagement section, and two or more blades coupled to the extension. The extension is located between the upper section and the lower section. The output section is located about at least a portion of the lower section, and the two or more blades are located outside a periphery of the vehicle. When the motor is running, the two or more blades are capable of drawing fluid from about the periphery of the vehicle and through the output section.