Fuel System; Injection Pump; Fuel Filter; Fuel System Schematic - KIRLOSKAR DV Series O & M Manual

4.8

Fuel System

Fuel system consists of fuel pump, feed pump, fuel filter, high pressure pipes & leak off pipe etc. Fuel is
supplied to fuel pump by feed pump (fuel lift pump) incorporated in the fuel pump itself. A dual type spin-on
fuel filter consisting of efficient pre and micro filter cartridges ensure supply of clean fuel to the engine. The
schematic diagram below indicates the folw of fuel in the engine.
4.8.1

Injection pump

The in-line injection pump is driven via gears from the crankshaft. It is connected to the force feed lubricating
system of the engine and consequently maintenance-free. The governor flange-mounted on the pump
casing is a variable range governor designed to keep the speed set by the speed control unit constant
under conditions of varying load.
Governor system for fuel injection pump consists of "Integral Actuator" and " Speed Control Unit".
1) Integral Actuator
4.8.2

Fuel filter

This fuel filter has two functions not only oil filtering but
also water separating. Before entering the suction
chamber of the injection pump, the fuel is cleaned in
a strainer of fuel feed pump and a fuel filter. Drain water
in cartridge with loosening the cock under filter manually
(6) from time to time. The fuel filter (Cartridge) should be
replaced at first 50 & Every 250 hours.
A water separator is also provided in the system before
fuel filter to remove moisture in fuel.
26
LEAK OFF
INJECTORS
OVER FLOW VALVE
FUEL PUMP
HEADER
FUEL TANK

Fuel System Schematic

FUEL FILTER
Emergency mechanical stop
Upper chamber
Engine oil lubricated
Electromechanical chamber
completely enclosed & sealed
The G-A-C actuator concept
Fastest response time
Maintenance free
Linear
Injection
pump