Heavy Duty Diesel Engine Treatment, Tools, and Repair Course

Upon completing this Heavy-Duty Diesel Engine Treatment, Tools, and Repair Course successfully, participants will be able to:
• Register and discuss the steps needed to attain certification in the field of heavy-duty vehicle servicing
• Explain how combustion takes place in diesel engines
• Justify the purpose of air-charging in diesel engines
• Discuss the principle of operation of air charging systems in diesel engines
• Understand the operational features of the fuel injection systems used in HDD
• Deliberate the employment possibilities in the field of heavy-duty vehicle repair
• Form the procedure and requirements for servicing HDD
• Define the HDD basic routine maintenance operations
Cours Content:
Heavy-Duty Diesel (HDD) Engines – An Introduction
• Meaning of HDD Engine
o Rating
o Load factor
o Operation Duration
• HDD Engine Glossary of Terms
• International Standards for HDD Engine
• Internal and External Characteristic Performance Curves
• Design Considerations of HDD Engine
• HDD Engine Construction Features and Materials
• HDD Engine Applications
Work Cycle and Combustion in HDD Engines
• Work Cycle
• Diesel Fuel:
o Classification
o Fuel properties
o 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:
o Mechanical
o Turbo
o Pressure wave
• Turbocharger Configuration
o Combined Two Stage
o Variable Geometry
o Sequential
• Turbocharger Control
• Turbocharger Performance Characteristics
Fuel Injection Systems In HDD Engines
• Types and Principle of Fuel Injection Systems:
• Cummins Systems:
o PT
o CELECT unit injector
o Accumulator
o HPI
o XPI
• Caterpillar Systems:
o HUEI/A
o HUEI/B
o Navistar
o MEUI/A
o MEUI/B
• In-line or Multi-plungers Systems
• Common Rail Systems
• Fuel Injection Systems – Design and Mechanisms
• Injected Fuel Quantity and Timing – Methods of Control:
o Hydraulic
o Pneumatic
o Electronic
• Diesel Fuel Filtration and Water Separation
Electronic Diesel Control (EDC)
• Advantages of EDC
• EDC Basic Layout and Components
o ECU
o Sensors
o Actuators
o Layout for fuel injection systems
• Open & Closed Loops
• Data Processing
• Controlled Quantities:
o Start
o Drive mode
o Idle speed
o Maximum speed
o Intermediate speed
o Cruise speed
• 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)
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
• Diesel Engines Troubleshooting
• Forms of Diesel Engine Components Failure
• Engines Troubleshooting and Fault Rectification
• Testing:
o Injection Pumps
o Injectors
o Fuel Feed Pumps
• Tests for Assessment of Engine Condition

Methodology
The training methodology integrates lectures, interactive discussions, collaborative group exercises, and illustrative examples. Participants will acquire a blend of theoretical insights and hands-on practical experience, emphasizing the application of learned techniques. This approach ensures that attendees return to their professional environments equipped with both the competence and self-assurance to effectively implement the acquired skills in their responsibilities.

DATE:

1ST BATCH:        14th – 17th Jan, 2025     

2ND BATCH:       9th – 11th June, 2025