Suction Nozzle Moisture Removal for Hydrogen Fueling
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Solution Overview
Problem
The existing methods for filling hydrogen gas into fuel cell vehicles often result in moisture freezing between the nozzle and receptacle, leading to operational issues and reduced gas supply efficiency, as they complicate device structures and do not effectively prevent dew condensation or moisture adhesion.
Innovation Solution
A suction nozzle with a suction port configured to remove moisture from the gas filler nozzle before interlocking with the receptacle, featuring a cylindrical shape with suction ports on its outer periphery and a movable locking member, along with a sealing member and heating element to prevent freezing and enhance suction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the nozzle is pre-cooled to supply hydrogen gas, then the gas supply efficiency is improved, but moisture condenses and freezes between the receptacle and nozzle
Solution Approach 1:
The suction nozzle removes moisture from the receptacle interior before the gas filling operation begins. This preliminary moisture removal prevents freezing during subsequent pre-cooling and gas supply, resolving the contradiction between maintaining gas supply efficiency and preventing moisture-related failures.
2Reliability
If temperature monitoring is added to prevent moisture freezing, then the reliability is improved, but the device structure becomes complicated
Solution Approach 1:
The invention extracts and removes the problematic moisture element from the receptacle interior before gas filling begins. By eliminating the moisture source through the suction nozzle, the need for complex temperature monitoring systems and control mechanisms is avoided, maintaining structural simplicity while ensuring reliability.
3Productivity
If the suction port is positioned on the outer periphery, then the moisture suction efficiency is improved, but the suction port may be exposed to external moisture
Solution Approach 1:
The suction operation is performed as a preliminary step before the gas filling process begins. By removing moisture from the receptacle interior first, the system prevents both internal moisture accumulation and potential external moisture contamination during the subsequent gas supply operation, resolving the contradiction between suction efficiency and moisture protection.
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 effectively prevents moisture-related failures by sucking moisture from the nozzle before gas filling, ensuring smooth interlocking and reducing the risk of dew condensation, thereby improving gas supply efficiency and preventing adhesion issues.
Implementation Method 1
a suction port configured to suck moisture inside the gas filler nozzle when the suction nozzle is interlocked with the gas filler nozzle
Implementation Method 2
a heating body configured to heat the gas filler nozzle when the suction nozzle is interlocked with the gas filler nozzle
Data Source
AI summary
A suction nozzle, which is configured to be interlocked with a gas filler nozzle used to supply a gas to a gas consuming device, comprises a suction port configured to suck moisture inside the gas filler nozzle when the suction nozzle is interlocked with the gas filler nozzle.