Common rail

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    Common rail injection: advanced technology for commercial-vehicle diesel engines

    In 1997, Bosch launched the first car-based common rail system onto the market. The market launch for commercial vehicles took place in 1999. The system takes its name from the common high-pressure storage tank (common rail) which supplies all cylinders with fuel. In conventional diesel injection systems, the fuel pressure must be generated separately for each injection. In the common rail system, however, pressure generation and injection are separate, so that the fuel is permanently available at the pressure necessary for injection.

     



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