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【简答题】
The fuel injection equipment and system piping are located in a hot-box, providing maximum reliability and safety when using preheated heavy fuels. 1 The fuel oil feed pipes are mounted directly to the injection pumps, using a specially designed connecting piece . The return pipe is integrated in the tappet housing. There is one fuel injection pump per cylinder with shielded high pressure pipe to the injector. The injection pumps, which are of the flow-through type, ensure good performance with all types of fuel. The pumps are completely sealed off from the camshaft compartment. 2 The fuel injection is stopped by setting the fuel rack to zero position . For emergencies the fuel rack of each injection pump is fitted with a stop cylinder. The blocking device can be operated by operator. 3 The fuel pump and pump bracket are adjusted in manufacturing to tight tolerances. This means that adjustments are not necessary after initial assembly .
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