Integrated CNG Fuel System with Above-Rail Fill Receptacle
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Solution Overview
Problem
Existing on-board compressed natural gas (CNG) storage systems for vehicles require complex and time-consuming assembly due to separate fuel management modules, which occupy space and increase complexity.
Innovation Solution
A CNG fuel system design that integrates a housing with tanks and a fill receptacle positioned above the frame rails of a truck, eliminating the need for a separate fuel management module by supporting the tanks and fill receptacle on the truck's frame rails, thus simplifying assembly and reducing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate fuel management module is used, then the CNG storage system can be assembled, but the assembly becomes complex and time-consuming
Solution Approach 1:
The patent combines the fuel management module with the CNG storage system into a single integrated assembly. The fuel management module is mounted directly to the storage system housing, creating a unified structure that reduces the number of separate components and simplifies the assembly process while maintaining all necessary functions.
2Reliability
If a separate fuel management module is used, then the system can function, but it occupies additional space
Solution Approach 1:
The fuel management module is integrated into the storage system housing structure, eliminating the need for separate mounting space. The module shares the same physical envelope as the storage system, thereby reducing the overall volume occupied while preserving all fuel management capabilities.
3Reliability
If a separate fuel management module is used, then the system can be assembled, but assembly time increases
Solution Approach 1:
The integrated design allows the fuel management module and storage system to be assembled as a single unit, reducing the number of assembly steps and fastening operations required. This consolidation significantly reduces assembly time while ensuring proper functional integration.
Data Source
AI summary
A compressed natural gas fueling system includes a frame arrangement with at least one tank disposed therein and an inlet that can receive a compressed natural gas fueling nozzle to fill the at least one tank. The fueling system can be attached with and supported by frame rails behind a cabin of a vehicle such that the inlet is positioned above the frame rails.