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  2. Pressure regulator - Wikipedia

    en.wikipedia.org/wiki/Pressure_regulator

    All vehicular motors that run on compressed gas as a fuel (internal combustion engine or fuel cell electric power train) require a pressure regulator to reduce the stored gas (CNG or Hydrogen) pressure from 700, 500, 350 or 200 bar (or 70, 50, 35 and 20 MPa) to operating pressure.

  3. Fuel pump - Wikipedia

    en.wikipedia.org/wiki/Fuel_pump

    In fuel-injected petrol engines, an electric fuel pump is typically located inside the fuel tank. For older port injection and throttle-body injection systems, this "in-tank" fuel pump transports the fuel from the fuel tank to the engine, as well as pressurising the fuel to typically 40–60 psi (3–4 bar).

  4. Electric-pump-fed engine - Wikipedia

    en.wikipedia.org/wiki/Electric-pump-fed_engine

    An electric cycle engine uses electric pumps to pressurize the propellants from a low-pressure fuel tank to high-pressure combustion chamber levels, generally from 0.2 to 0.3 MPa (29 to 44 psi) to 10 to 20 MPa (1,500 to 2,900 psi). The pumps are powered by an electric motor, with electricity from a battery bank.

  5. Glossary of fuel cell terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_fuel_cell_terms

    Pressure regulator A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Pressure relief valve A pressure relief valve (PRV), also called a pressure safety valve (PSV), is a safety device that relieves in case of overpressure in vessel or piping. Pressure sensor

  6. Common rail - Wikipedia

    en.wikipedia.org/wiki/Common_rail

    Common rail direct fuel injection is a direct fuel injection system built around a high-pressure (over 2,000 bar or 200 MPa or 29,000 psi) fuel rail feeding solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors (or pump nozzles). High-pressure injection delivers power and fuel consumption benefits over earlier lower ...

  7. Centrifugal governor - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_governor

    A centrifugal governor is a specific type of governor with a feedback system that controls the speed of an engine by regulating the flow of fuel or working fluid, so as to maintain a near-constant speed. It uses the principle of proportional control.

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