The high-pressure sensor measures the fuel pressure in the high-pressure fuel rail of engines with gasoline direct injection (GDI).
The high-pressure rail gives its name to the common-rail system and is the hydraulic component that connects pump and injectors.
The oil-lubricated CP9 high-pressure pump delivers the fuel into the piping system leading to the injector under high pressure.
Natural gas (compressed natural gas – CNG) stored under high pressure is supplied by way of the pressure regulator in the fuel rail.
The proportion of vehicles with gasoline direct injection is set to increase further in future.
It is expected that the number of vehicles with compressed natural gas (CNG) powertrain systems will continue to rise in the years to come.
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The fuel rail supplies the injectors with fuel with minimal pressure fluctuations between individual injections.