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A breakaway valve is also fitted to the hose so that the nozzle and hose will detach and fuel flow will stop if a motorist drives off with the nozzle still in the filler. Nozzles are usually color-coded to indicate which grade of fuel they dispense, but the color-coding differs between countries and even retailers.
Gas nozzle with vapor recovery. Vapor (or vapour) recovery is the process of collecting the vapors of gasoline and other fuels, so that they do not escape into the atmosphere. This is often done (and sometimes required by law) at filling stations, to reduce noxious and potentially explosive fumes and pollution.
The automatic shut off nozzle shuts off when pressure in the fuel system reaches 9 psi (62 kPa) or greater. Due to the pressure introduced into the fuel tank, most tanks require additional structure to prevent bursting or damaged weld joints. This bursting is both a safety and environmental hazard.
Dieseling or engine run-on is a condition that can occur in spark-plug-ignited, gasoline-powered internal combustion engines, whereby the engine keeps running for a short period after being turned off, drawing fuel through the carburetor, into the engine and igniting it without a spark.
For the first time in 72 years, Oregon motorists can grab a fuel nozzle and pump gas into their cars on their own, since a decades-old ban on self-serve gas stations has been revoked. Gov. Tina ...
The pump element is still on the way down, the solenoid is now energised and the fuel line is immediately closed. The fuel cannot pass back into the return duct, and is now compressed by the plunger until pressure exceeds specific “opening” pressure, and the injector nozzle needle lifts, allowing fuel to be injected into the combustion chamber.
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Hong Kong’s flag carrier Cathay Pacific has canceled dozens of flights as it conducts an inspection of its entire Airbus A350 fleet after finding engine problems affecting the plane.