•  An electronically controlled supply pump has been adopted for the supply pump which pumps high compression fuel to the common rail using low drive torque.

•  The supply pump is located on the engine (rear).

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•  Fuel supplied by the feed pump built in the supply pump passes the suction control valve which controls the intake amount. The fuel is then sent to the high pressure chamber formed by the TDC of the plunger and passes through the intake valve.

•  When the plunger approaches TDC of the high compression chamber, the fuel sent to the high pressure chamber is passed through a compression pipe and sent to the delivery valve, supplying pressure to the common rail.

•  The outer cam is driven eccentrically by the rotation of the camshaft to produce the reciprocating movement of the cam ring. The exterior surface of the outer ring rubs against the plunger and they move together in a reciprocating motion.