CRDI TECHNOLOGY

18/05/2009 09:42

 

 

The figure shows common rail fuel injection system, in this system the pressure

required to inject the fuel is developed in a pump. Fuel at high pressure is

supplied

to a common rail by the high pressure fuel pump. A spring loaded by one word

pass valve maintains constant pressure on common rail and returns the excess

fuel. The pressure of common rail can be adjusted by adjustment of spring

tension on the bypass valve.




In common rail the fuel is distributed to a individual injector by different fuel

injector. Each furl injector contains a needle valve reached against the valve

seat by a spring. The valve is operated by cam, follower aand push rod.

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