Course Overview

Day-by-Day Outline

Day 1 – Fundamentals of Diesel Fuel Injection

•  Basics of diesel combustion and fuel requirements
•  Role of injection systems in diesel engine performance
•  Key injection parameters: pressure, timing, spray pattern
•  Overview of mechanical vs. electronic injection systems
•  Exercise: Identify major components of a fuel injection system

Day 2 – Mechanical Injection Systems

•  Inline and distributor-type fuel injection pumps
•  Operation principles of mechanical injectors
•  Governor mechanisms and fuel control
•  Maintenance and calibration of mechanical systems
•  Workshop: Disassemble and inspect a mechanical injection pump

Day 3 – Electronic & Common Rail Injection Systems

•  Evolution from mechanical to electronic fuel injection
•  Common rail injection principles and components
•  Unit injector systems vs. common rail
•  Electronic control modules (ECMs) and sensors
•  Exercise: Analyze signals from sensors controlling injection timing

Day 4 – Diagnostics and Troubleshooting Techniques

•  Symptoms of faulty injection systems (smoke, misfires, power loss)
•  Testing injectors, pumps, and high-pressure lines
•  Electronic diagnostic tools and onboard diagnostics (OBD)
•  Injection timing adjustment and correction
•  Workshop: Perform diagnostics on a common rail test bench

Day 5 – Optimization, Emissions, and Case Studies

•  Optimizing injection timing and pressure for efficiency
•  Reducing NOx and particulate emissions through injection control
•  Case studies of common failures and solutions in diesel fleets
•  Preventive maintenance strategies for reliable injection performance
•  Capstone Project: Diagnose and propose solutions for injection issues in a simulated diesel engine fault scenario

Expected Learning Outcomes

•  Understand principles of diesel fuel injection systems and their role in combustion
•  Differentiate mechanical, electronic, and common rail injection systems
•  Perform maintenance, calibration, and diagnostics on injection components
•  Optimize injection parameters to improve performance and reduce emissions
•  Apply troubleshooting techniques to identify and fix injection-related issues