Double-Duct Jet Propulsion for Normal-Pressure Pipeline Flight
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Solution Overview
Problem
Existing ultra-high speed flying vehicles face challenges with resistance and noise reduction, particularly due to the limitations of low vacuum pipelines, which increase construction and maintenance costs, and pose difficulties in emergency escape and power supply.
Innovation Solution
The implementation of an upper and lower double-duct jet-propelled pipeline system where airflow is managed through air sucking, compressing, and jetting, using propellers to maintain dynamic sealing and achieve ultra-high speed flight without low vacuum and magnetic levitation, utilizing distributed electric propulsion and hydrogen electricity for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If low vacuum pipeline magnetic suspension electromagnetic propulsion technology is used, then pneumatic resistance is weakened, but pipeline construction cost and maintenance cost are greatly increased
Solution Approach 1:
The patent changes the pressure parameter from low vacuum to normal atmospheric pressure, eliminating the need for vacuum maintenance systems and magnetic suspension infrastructure, thereby reducing construction and maintenance costs while still achieving ultra-high speed flight through jet propulsion
Solution Approach 2:
The patent extracts and removes the low vacuum pipeline requirement and magnetic suspension system from the technology stack, replacing them with a simpler normal pressure pipeline system that uses jet propulsion and air bearing, thus eliminating the associated high construction and maintenance costs
2Loss of energy
If low vacuum pipeline is used, then pneumatic resistance is reduced, but emergency escape and emergency rescue become difficult
Solution Approach 1:
By changing the operating pressure from low vacuum to normal atmospheric pressure, the system enables easier emergency escape and rescue operations, as normal pressure allows for standard breathing air and simplifies emergency protocols while maintaining ultra-high speed performance through jet propulsion
3Use of energy by moving object
If batteries are used for electricity storage, then power supply is achieved, but vehicle weight increases
Solution Approach 1:
The patent replaces the mechanical battery-based electricity storage system with a hydrogen combustion-based power generation system, which produces electricity on-demand through fuel cells or combustion engines, thereby reducing vehicle weight while maintaining continuous power supply for propulsion and systems
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
This solution reduces running resistance, improves operational efficiency, lowers construction and operation costs, enhances safety, and enables all-weather full-period operation with zero emissions, while providing a flexible propulsion system and effective noise control.
Implementation Method 1
a head propeller of the flying vehicle compresses most of incoming flow at a vehicle head inside the upper duct to the lower duct through the air suction channel
Implementation Method 2
a bottom propeller of the flying vehicle compresses an airflow into the pressure bins of the lower duct at a lower portion of the flying vehicle through the air suction channel
Implementation Method 3
high-pressure airflow inside the lower duct is jetted out from the air outlet channel to the upper duct along the tail portion of the flying vehicle
Implementation Method 4
a power provided by the bottom propeller supplements energy loss in a flowing of the airflow and enables the pressure bins of the lower duct to be in a dynamic sealing state
Implementation Method 5
an airflow in a gap between a top of the flying vehicle and the pipeline is restrained by the gap and is always in a laminar flow state
Data Source
AI summary
A head propeller of the flying vehicle compresses incoming flow at a vehicle head inside an upper duct to a lower duct through an air suction channel. A portion of airflow is compressed to the lower duct through the air suction channel under an action of a guide plate and a vehicle body propeller. A bottom propeller of the flying vehicle compresses an airflow into pressure bins of the lower duct at a lower portion through the air suction channel. A sealing state of the pressure bins of the lower duct is destroyed. High-pressure airflow inside the lower duct is jetted out from an air outlet channel to the upper duct. A tail propeller guides the airflow to the tail portion of the vehicle body. The upper duct and the lower duct are constructed inside the pipeline, so a running resistance of the flying vehicle is reduced.