Hydrogen Recycling Flight System for Extended Endurance
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Solution Overview
Problem
Existing unmanned flight vehicles face limitations in flight time and weight capacity due to the use of small-capacity motors and heavy batteries, and they suffer from noise and pollution issues with gasoline engines, as well as charging limitations with secondary batteries.
Innovation Solution
A hydrogen recycling flight system that combines a hydrogen fuel cell with a water electrolysis device, using generated hydrogen gas for flotation and electricity generation, with a high-pressure gas barrel and secondary battery for extended flight capabilities and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If small-capacity motors are used for flight, then the flight vehicle can operate with lighter weight components, but the flight time and power output are severely limited
Solution Approach 1:
The patent combines a hydrogen fuel cell system with a secondary battery system to create a hybrid power source. The hydrogen fuel cell generates electricity continuously from hydrogen storage, while the secondary battery provides immediate power and stores excess energy, together delivering both extended flight time and sufficient power output without requiring heavy single-source batteries
Solution Approach 2:
The patent replaces the conventional mechanical combustion engine or battery-only system with an electrochemical system using hydrogen fuel cells. This substitution eliminates the need for large-capacity chemical batteries or heavy fuel tanks, providing continuous power generation with reduced weight and extended operational duration
2Power
If large-capacity batteries are used to increase power output, then the motor standard can be increased, but the weight of the battery increases significantly (10 to 30 kg)
Solution Approach 1:
The patent merges hydrogen fuel cell power generation with secondary battery storage to create a hybrid system. The hydrogen fuel cell serves as a continuous power source with minimal weight, while the secondary battery provides supplemental power and energy buffering, together achieving high power output without the prohibitive weight of a single large-capacity battery system
Solution Approach 2:
The hydrogen storage system serves multiple functions: it provides fuel for the fuel cell to generate electricity, and the byproduct water can be stored and reused. This multi-functionality reduces the need for separate heavy components, achieving high power output with reduced overall system weight
3Duration of action of moving object
If gasoline (diesel) engines are used for power supply, then long-timed flight is possible, but noise and air pollution are generated and refueled gasoline (diesel) weight increases
Solution Approach 1:
The patent replaces the mechanical combustion engine system with an electrochemical hydrogen fuel cell system. This substitution eliminates combustion-related noise and air pollution entirely, while the hydrogen fuel cell provides continuous power generation for extended flight durations without the harmful emissions associated with gasoline or diesel engines
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 system enables longer flight times and reduced power consumption by using hydrogen gas for buoyancy, while being environmentally friendly and eliminating noise and pollution issues associated with traditional power sources.
Implementation Method 1
a hydrogen fuel cell which is connected with the hydrogen gas balloon and is installed outside or inside the flight fuselage
Implementation Method 2
the water electrolysis device which electrolyzes the stored water
Implementation Method 3
a hydrogen gas balloon which is air-tightly connected to the flight fuselage
Implementation Method 4
electricity generated from a solar cell provided at an outer peripheral portion of the flight fuselage
Data Source
AI summary
The present invention relates to a hydrogen recycling flight system and flight method, the hydrogen recycling flight system including: a flight fuselage which has at least one pair of wings at each of both sides of a body; a hydrogen gas balloon which is air-tightly connected to the flight fuselage; a hydrogen fuel cell which is connected with the hydrogen gas balloon and is installed outside or inside the flight fuselage; and a secondary battery which is charged with electricity generated from the hydrogen fuel cell, electricity generated from a solar cell provided at an outer peripheral portion of the flight fuselage, or electricity of an external power network, in which by using a switch, the hydrogen fuel cell is switched to a water electrolysis device or the water electrolysis device is switched to the hydrogen fuel cell, the hydrogen recycling flight system includes: a water tank which stores water generated from the hydrogen fuel cell; the water electrolysis device which electrolyzes the stored water; a switch control device which switches functions of the hydrogen fuel cell and the water electrolysis device; and a high-pressure gas barrel which high-pressure stores hydrogen gas and oxygen gas generated in the water electrolysis device, and the flight fuselage flies by controlling the volume of the hydrogen gas balloon that is flotation power of a flight vehicle by an operation of the hydrogen fuel cell or the high-pressure gas barrel.