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Heavy Duty Diesel Engine (HDD) Operation and Maintenanc

Dates Venues Register
17/01/2027 - 21/01/2027 DUBAI

Introduction

Heavy Duty Diesel Engine (HDD) Operation and Maintenanc

 

 

Objectives

By the end of this training course, participants will be able to:

  • Outline the principle of operation of diesel engines
  • Specify the difference between Heavy Duty Diesel Engines and normal Diesel engines
  • Describe how combustion occurs in diesel engines
  • Explain the reason of air charging in diesel engines
  • List and explain the principle of operation of air charging systems in diesel engines
  • List and explain the operation principle of various types of fuel injection systems used in HDD
  • Describe the layout and components of various fuel injection systems used in HDD
  • Explain how quantity and timing of injected fuel can be controlled
  • State the benefits of Diesel Electronic Control (DEC)
  • List and explain the principle of operation of various HDD emission control systems
  • Outline the procedure and requirements for servicing HDD
  • Outline the HDD basic routine maintenance operations
  • List and explain how to fix the common HDD troubles

 

Who should Attend?

  • Vehicles fleet maintenance engineers and technicians
  • Fleet maintenance supervisors
  • Automotive maintenance engineers
  • Automotive maintenance technicians
  • Diesel power generation plants engineers and technicians
 
Course Outline
Day 1

Introduction to Heavy Duty Diesel (HDD) Engines

  • Meaning of HDD Engine: Rating – Load factor – Operation Duration
  • HDD Engine Glossary of Terms
  • International Standards for HDD Engine
  • HDD Engine Internal and External Characteristic Performance curves
  • Design Considerations of HDD Engine
  • HDD Engine Construction Features and Materials
  • HDD Engine Applications
Day 2

Work Cycle and Combustion in HDD Engines

  • Work Cycle, Internal and External Characteristic Curves of HDD Engines
  • Diesel Fuel (Classification – Fuel properties – Fuel tests)
  • Combustion Process in Diesel Engines
  • Compression Ratio
  • Combustion Chambers Shapes
  • Direct & Indirect Injection Methods
  • Homogenous Charge Compression Ignition (HCCI)
  • Air Charging in Heavy Duty Diesel Engines: Types (Mechanical – Turbo – Pressure wave)
  • Turbocharger Configuration (Combined Two Stage - Variable Geometry – Sequential )
  • Turbocharger Control (Pressure – Fuel compensation)
  • Turbocharger Performance Characteristics
Day 3

Fuel Injection Systems in HDD Engines

  • Types and Principle of Operation of Fuel Injection Systems:
    • Cummins Systems: (PT – CELECT unit injector – Accumulator – HPI – XPI)
    • Caterpillar Systems: (HUEI/A – HUEI/B – Navistar – MEUI/A – MEUI/B)
    • In-line or Multi-plungers Systems
    • Common Rail Systems
  • HDD Engines Fuel Injection Systems Layout and Components
  • Methods of Control of Injected Fuel Quantity and Timing: (Hydraulic, Pneumatic, Electronic)
  • Diesel Fuel Filtration and Water Separation
Day 4

Electronic Diesel Control (EDC)

  • Advantages of EDC
  • EDC Basic Layout and Components (ECU – Sensors – Actuators – Layout for various types of fuel injection systems)
  • Open & Closed Loops and Data Processing
  • Controlled Quantities: (Start – Drive mode – Idle speed – Maximum speed – Intermediate speed – Cruise speed - etc.)
  • Injected Fuel Quantity Limits
  • Emission Control Systems,
    • Diesel Oxidation Catalyst (DOC)
    • Diesel Particulate Filter (DPF)
    • Selective Catalyst Reduction (SCR)
    • Urea Injection (UI)
    • Exhaust Gas Recirculation (EGR)
    • Closed Crankcase Ventilation (CCV)
Day 5

Operation and Maintenance of HDD Engine

  • Operation Tips for HDD Engine
    • Indicator Lamps
    • On-Board Diagnostics
    • Fuel Type
    • Items to be Noticed
    • Tips for Efficient Operation
  • Maintenance of Diesel Engines
    • Basics of Mechanical Maintenance
    • Servicing of Diesel Fuel Injection Systems 
    • Diesel Engine Tune-up
    • Diesel Engine Routine Maintenance Operations (time-based, distance- based)
  • Diesel Engines Troubleshooting
    • Forms of Diesel Engine Components Failure
    • Engines Troubleshooting and Fault Rectification
    • Testing of Injection Pumps, Injectors, Fuel Feed Pumps
    • Tests for Assessment of Engine Condition (compression, leakage tests)

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