ENGINE
A. FLOW OF FUEL
(1) Fuel Ta n k
(5) Injection Nozzle
(2) Fuel Filter
(6) Fuel Overflow Pipe
(3) Injection Pump
(7) Fuel Transfer Pump
(4) Injection Pipe
The fuel is fed from the fuel tank(1) through the fuel
filter(2) to the injection pump(3) by the fuel transfer
pump(7). The injection pump force-feds the fuel
through the injection nozzles(5), which inject the fuel
into the cylinders for combustion. The excessive fuel
from the injection pump to the injection nozzles(5),
which inject the fuel into the cylinders for
combustion. The exessive fuel from the injection
pump to the injection nozzles is collected in the fuel
overflow pipes(6) and returns to the fuel tank.
B. FUEL FILT E R
The fuel filter removes dirt and water with its fine
filter paper, which collects particles of 90
microns(0.0034in) at 20kPa(0.2f/
c m2
, 3psi). The
fuel from the fuel tank is filtered by the filter
element(6), while flowing through the filter body(3)
has an air vent(2) to return the air tin the fuel to the
fuel tank to prevent the engine from stopping or
running irregularly.
(a) To Fuel Ta n k
(b) Front Fuel Ta n k
(c) To Fuel Transfer Pump
(1) Cock
(4) Retainer Ring
(2) Air Ve n t
(5) Pot
(3) Filter Body
(6) Filter Element
2.4 FUEL SYSTEM
