Page 341 - Mechanic Diesel - TT
P. 341
MECHANIC DIESEL - CITS
In order to get an idea of the different types of sensors that are used in an engine let us take the example of a
typical gasoline fuel injection system as shown in We can see that different sensors are used to detect crank shaft
position, coolant temperature, engine speed, air flow rate, exhaust oxygen level, camshaft position, EGR valve
position, exhaust manifold pressure, knock, manifold air pressure and manifold temperature.
Shows a typical common rail diesel fuel injection system. In this case we have sensors for engine speed, air mass
flow, crank speed, cam shaft position, turbo air boost pressure, fuel rail pressure, air temperature,
1 High pressure pump
2 Element shutoff valve
3 Pressure control valve
4 Fuel filter
5 Fuel temperature sensor
6 Battery
7 High pressure accumulator
8 Rail pressure sensor
9 ECU
10 Turbocharger
11 Coolant temperature sensor
12 Crankshaft speed
13 Accelerated pedal Sensors
14 Injector
15 Camshaft speed sensor
16 Intake air temperature sensor
17 Boost pressure sensor
18 Air mass meter.
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CITS : Automotive - Mechanic Diesel - Lesson 104 - 107