SHIELD 1043124 - Caterpillar

Introduction
The engine is designed for electronic control. The engine has an Electronic Control Module (ECM), a fuel injection pump and electronic unit injectors. All of these items are electronically controlled. There are also a number of engine sensors. The engine is equipped with an electronically controlled wastegate system for the turbocharger. The ECM controls the engine operating parameters through the software within the ECM and the inputs from the various sensors. The software contains parameters that control the engine operation. The parameters include all of the operating maps and customer-selected parameters.The electronic control system has the following components:
ECM
Pressure sensor
Temperature sensors
Crankshaft speed/timing sensor
Camshaft speed/timing sensor
The suction control valve for the fuel injection pump
Wastegate solenoid
Electronic unit injectors
Soot sensorsEngines with Series Turbochargers
Illustration 1 g02476176
(1) Air cleaner (2) Air inlet temperature sensor (3) Exhaust back pressure valve (4) Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF) (5) Inlet temperature sensor for the DPF (6) Soot sensor (7) Exhaust Cooler for the NOx Reduction System (NRS) (8) Turbochargers (9) Valve for the NOx Reduction System (NRS) (10) Temperature sensor for the NOx Reduction System (NRS) (11) Inlet pressure sensor for the NOx Reduction System (NRS) (12) Exhaust gas valve for the NOx Reduction System (NRS) (13) Air-to-air aftercooler (14) Wastegate regulator (15) Outlet pressure sensor for the NOx Reduction System (NRS) (16) Engine (17) Coolant temperature sensor (18) Crankshaft speed/timing sensor (19) Electronic unit injectors (20) Fuel cooler (21) Fuel pressure relief valve (22) Camshaft speed/timing sensor (23) Fuel injection pump and fuel temperature sensor (24) Fuel pressure sensor (25) Oil pressure sensor (26) Atmospheric pressure sensor (27) ECM (28) Fuel transfer pump (29) Primary fuel filter (30) Fuel strainer (31) Boost pressure sensor (32) Inlet manifold temperature sensor (33) Transfer pump inlet regulator (34) Secondary fuel filter (35) Fuel tankEngines with a Single Turbocharger
Illustration 2 g02420296
Typical example (1) Air cleaner (2) Air inlet temperature sensor (3) Exhaust Cooler for the NOx Reduction System (NRS) (4) Exhaust back pressure valve (5) Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF) (6) DPF inlet temperature sensor (7) Soot sensor (8) Turbocharger (9) Valve for the NOx Reduction System (NRS) (10) Temperature sensor for the NOx Reduction System (NRS) (11) Inlet pressure sensor for the NOx Reduction System (NRS) (12) Exhaust gas valve for the NOx Reduction System (NRS) (13) Air-to-air aftercooler (14) Wastegate regulator (15) Outlet pressure sensor for the NOx Reduction System (NRS) (16) Engine (17) Coolant temperature sensor (18) Crankshaft speed/timing sensor (19) Electronic unit injectors (20) Fuel cooler (21) Fuel pressure relief valve (22) Camshaft speed/timing sensor (23) Fuel injection pump and fuel temperature sensor (24) Fuel pressure sensor (25) Oil pressure sensor (26) Atmospheric pressure sensor (27) ECM (28) Fuel transfer pump (29) Primary fuel filter (30) Fuel strainer (31) Inlet manifold pressure sensor (32) Inlet manifold air temperature sensor (33) Transfer pump inlet regulator (34) Secondary fuel filter (35) Fuel tankSensor Locations for the Engine
The illustrations in this section show the typical locations of the sensors for the industrial engine.