DA 42 AFM Airplane Description
Doc. No. 7.01.05-E Rev. 8 15-Dec-2017 Page 7 - 39
Fuel is stored in the tanks which are located in the wings.
Normally fuel for the right engine is taken from the right wing main tank and for the left
engine from the left wing main tank.
On each engine fuel is injected with high pressure directly into the cylinders. The injection
nozzles (one per cylinder) are supplied with fuel by the common rail. Pressure inside the
rail is generated by a high pressure pump which receives fuel from a low pressure pump.
Depending on the power setting the rail pressure is controlled by the ECU through an
electric valve. Both pumps are powered mechanically by the engine. Fuel that is not
injected is fed back into the appropriate wing tank.
Both sides of the fuel system are interconnected by crossfeed lines.
In each engine nacelle an auxiliary fuel tank may be installed (OÄM 42-056 carried out).
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