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On-Board Fueling Systems

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On-board Fuel Tank

How the Tank Works

1 LNG Dispenser. With a locking fueling nozzle provides fuel to the tank. 4 Fuel Gauge. Can be mounted in the cab or in a protected area by the fuel receptacle. 7 Heat Exchanger. Uses the coolant fluid from the engine to warm the LNG to a gaseous phase.
2 Top Fill. Enables single hose fueling— spray of liquid collapses vapor for faster fills. 5 Vapor Space. Has a small hole near the top of the tank to absorb excess vapor pressure. Extends tank hold time when a vehicle is not in use for several days. 8 Over Pressure Regulation. Ensures that the vaporized fuel pressure does not exceed the pressure specified by the engine manufacturer.
3 Fuel Receptacle. A poppet valve on the receptacle is automatically opened by engagement of the fueling nozzle onto the receptacle. Receptacle has matching locking mechanism to the fueling nozzle to ensure a tight seal during fueling. 6 Economizer Regulator. Determine tanks operating pressure.  


Animations
View animations of our vehicle tanks at work.

Vehicle Tanks
Filling the LNG Tank To the Engine Pressure Equalization

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