How Fuel Nozzles Automatically Stop — Genius Engineering Explained! 🚗⛽#EngineeringExplained #Fuel

⛽ Ever wondered how a fuel nozzle knows when your vehicle’s tank is full?
It’s not magic — it’s brilliant engineering! 🔧🚗

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Inside every fuel nozzle, a tiny Venturi vacuum system constantly measures airflow.
As soon as the fuel level rises and blocks the nozzle’s sensing hole, the pressure suddenly drops. This triggers the automatic shut-off valve, stopping the fuel flow instantly and preventing overflow.

This smart mechanism protects your tank, saves fuel, and keeps you safe at the pump.

Watch the full explanation in simple animation!
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