SANY SRT55D - Quantum Electronic Fuel System - Description

SRT55D Off-Highway Truck
3-18
Safety, Operation and Maintenance Manual
Controls and Operating
(30 pin LHS). Turn off ignition key
switch to isolate the batteries before
disconnecting any components.
After welding connect all of the above
in the reverse order.
3.11.3 Quantum electronic fuel system -
description
1. Electronic Control Module (ECM)
Receives electronic inputs from the driver as
well as from mounted sensors that provide
informationelectronically, such as oil pressure
and temperature and intake manifold pressure.
This information is used to control both the
quantity of fuel injected and injection timing.
2. Programmable Read Only Memory
Located in the ECM and encoded with the
operating software. Additional information
is programmed into the EEPROM. This
information controls the horsepower rating,
torque curve, maximum engine speed and
engine protection devices. The ECM processes
this information and sends electronic signals
to the Electronic Fuel System Injectors where
the precise amount of fuel is injected into the
engine.
3.Electronic Fuel System Injectors
The injector is a lightweight, compact unit that
injects diesel fuel directly into the combustion
chamber. The amount of fuel injected and the
beginning of injection timing is determined by
the ECM. The ECM sends a command pulse
which activates the injector solenoid.
The injector performs four functions:
a - Creates the high fuel pressure required for
efcient injection.
b - Meters and injects the exact amount of fuel
required to handle the load.
c - Atomizes the fuel for mixing with the air in
the combustion chamber.
d - Permits continuous fuel ow for component
cooling.
Courtesy of Machine.Market