Control System Engine - Kalmar DRF420-60S5 Maintenance Manual

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1 Engine – 1.9 Control system engine

Control system engine, description

The engine is controlled by a control system, for which the central

unit is a control unit.

The control unit controls the amount of fuel to the unit injectors by

opening and closing a fuel valve by each injector. The unit injectors

are activated by an extra cam on the camshaft, which presses to-

gether the injector so that the fuel is injected in the cylinder.

The fuel volume is calculated based on the signals from the sensors

on the engine and CAN-message about desired engine rpm (from

throttle pedal via Control unit cab (D790-1)).

Maintenance manual DRF 400–450

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Control system engine

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