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Workshop Manual, TPD 1353E, Issue 3
Peregrine EDi and 1300 Series EDi
Fuel injector units
The fuel injector units are controlled electronically by the engine control module, with a pulse of 110 volts, to
a solenoid.
The units are actuated by engine lubricating oil from the high-pressure system.
The value of the oil pressure can be altered by the engine management system, this pressure is known as
“injection control pressure”.
The injector unit has two main chambers: the oil chamber and the fuel chamber.
The oil chamber receives engine oil from the supply manifold at injection control pressure. A valve, which is
connected to the armature of the solenoid, controls the flow of oil through the oil chamber.
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When the solenoid is energised, the valve closes an outlet port and opens an inlet port.
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When the solenoid is de-energised, the valve opens the outlet port and closes the inlet port.
The fuel chamber receives fuel at supply pressure from the supply manifold. A ball-valve and a flat-valve
control the flow of fuel through the chamber.
This document has been printed from SPI². Not for Resale
Содержание 1300 EDi Series
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