Hydrogen Two-Stroke Engine With Exhaust Gas Recycling
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Solution Overview
Problem
The increasing cost and environmental impact of fossil fuels, combined with the intermittency of solar energy storage, render existing renewable energy solutions for aquatic and maritime transportation inefficient and polluting.
Innovation Solution
A traction system utilizing a two-stroke internal combustion engine powered by a dihydrogen and dioxygen gas mixture, with a recycling device to recover unconsumed fuel and eliminate emissions, integrated with photovoltaic, wind, and tidal energy harvesting to provide constant propulsion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fossil fuels are used for transportation, then transportation speed and cargo capacity increase, but environmental pollution and fuel costs increase
Solution Approach 1:
The patent changes the chemical composition parameters of the fuel from fossil hydrocarbons to a controlled mixture of dihydrogen and dioxygen gases, which combust to produce only water vapor, thereby eliminating harmful emissions while maintaining propulsion capability
Solution Approach 2:
The patent uses dioxygen (pure oxygen) instead of atmospheric air as the oxidant for combustion. This provides more complete and efficient combustion of dihydrogen fuel, maximizing energy release while ensuring only water vapor is produced as exhaust, resolving the contradiction between propulsion efficiency and emission cleanliness
2Reliability
If solar energy is stored in batteries, then renewable energy availability increases, but manufacturing complexity and resource consumption increase
Solution Approach 1:
The patent extracts and eliminates the battery storage component from the system entirely. Instead of storing electrical energy in complex batteries, the system directly stores chemical energy in the form of dihydrogen and dioxygen gases, which can be combusted on demand to generate mechanical propulsion, thereby reducing device complexity while maintaining energy availability
Solution Approach 2:
The patent replaces the electrochemical energy storage system (batteries) with a chemical combustion system. The mechanical energy is generated directly through controlled combustion of stored gas fuels rather than through electrochemical conversion, simplifying the overall system architecture
3Ease of operation
If two-stroke engine uses oil for lubrication, then engine operation is enabled, but oil combustion emissions increase pollution
Solution Approach 1:
The patent extracts and removes the lubricating oil from the combustion process entirely. By using dihydrogen-dioxygen combustion, the system eliminates the need for carbon-based lubricants, as the combustion environment and engine design can accommodate alternative lubrication methods that do not produce harmful emissions when exposed to the combustion chamber
Solution Approach 2:
The patent converts the previously harmful oil combustion emissions into a beneficial outcome by eliminating oil entirely from the fuel mixture. The simplified combustion chemistry of dihydrogen and dioxygen inherently prevents oil contamination and emissions, turning a historical problem into a design advantage
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 optimizes energy efficiency, reduces pollutant emissions, and maintains consistent propulsion regardless of atmospheric conditions, leveraging renewable energy sources effectively.
Implementation Method 1
a piston (706) adapted to move within the cylinder (704) from a rest position to a compression position, the piston (706) defining with the cylinder (704) a combustion chamber (7020) in which a gas mixture based on dihydrogen and dioxygen is compressed suitable for explosion
Implementation Method 2
an igniter (716) adapted to create a spark initiating the combustion of the gas mixture and producing an explosive force
Implementation Method 3
a combustion chamber (7020) in which a gas mixture based on dihydrogen and dioxygen is compressed suitable for explosion
Implementation Method 4
an exhaust port (714) in communication with the combustion chamber (7020) and adapted to release the combustion products and unburned gas mixture to the exterior
Data Source
Figure 1~2
Figure 3~6
Figure 7~10
AI summary
The invention relates to a two-stroke internal combustion engine (700) whose engine casing (701) comprises sealing means that, at all times and under all circumstances, confine the oil in the lower casing (703). According to the invention, the two-stroke engine (700) uses a gaseous fuel based on dihydrogen and dioxygen, and releases only water vapor charged with unused gaseous fuel, a device for recycling the exhaust gases which serves to recover the unused gaseous fuel and to reinject it at the intake opening (712), the exhaust opening (714).