INTRODUCTION TO ENGINE TECHNOLOGY
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Subject: Applied Technology
Class: SHS 1
Term: 1st Term
Week: 1
Grade code: 1.1.1.LI.2
Strand code: 1
Sub-strand code: 1
Content standard code: 1.1.1.CS.1
Indicator code: 1.1.1.LI.2
Theme: AUTOMOTIVE TECHNOLOGY
Subtheme: INTRODUCTION TO ENGINE TECHNOLOGY
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Good morning, learners. Every day, on your way to school, you see different types of vehicles. You see tro-tros like the Mercedes Sprinter or Ford Transit, and you see smaller private cars like the Toyota Vitz or Kia Picanto. Have you ever noticed at the filling station that they use different fuel pumps? One says "Super" or "Petrol," and the other says "Diesel." Why is this? It's because they run on different types of engines. Today, we are going to become "engine doctors" and look inside these machines to understand how they are built and how they work differently.
This lesson focuses on the two most common types of Internal Combustion Engines (ICE). An ICE is an engine that burns fuel inside the engine itself to create power.
Two Main Types of ICE: Petrol Engine: Also known as a Spark Ignition (SI) Engine. It uses petrol (gasoline) as fuel. Diesel Engine: Also known as a Compression Ignition (CI) Engine. It uses diesel as fuel.
Let's break down their differences into two main categories: Construction (how they are built) and Operation (how they work). A. Constructional Differences (How They Are Built)
This is about the physical parts of the engine and how they differ. Imagine we have two engine blocks, one from a small Toyota Yaris (petrol) and one from a Ford Ranger pickup (diesel). Here's what we would notice: