Lesson Notes By Weeks and Term - Senior Secondary 3

Types of engine and fluid fly wheel

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TERM – 1ST TERM

WEEK SEVEN

Class: Senior Secondary School 3

Age: 17 years

Duration: 40 minutes of 5 periods each

Date:

Subject: AUTO MECHANICAL

Topic: TYPES OF ENGINE AND FLUID FLY WHEEL

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Identify the types of engines

II.)  Discuss the maintenance of engines

III.) Describe overhauling and decarbonization

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher identifies and discuss the types of engines.

Teacher explains the basic maintenance of an engine

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher explains the meaning of overhauling and decarbonization

Students exhibit attentiveness and active engagement

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

TYPES OF ENGINE AND FLUID FLY WHEEL

Types of Engines

  1. Inline Engines (Straight Engines): These engines have cylinders arranged in a straight line along a single axis. They are often used in smaller vehicles and motorcycles.

Inline engines can have different numbers of cylinders, such as 4-cylinder, 6-cylinder, or even 8-cylinder configurations.

  1. V Engines: V engines have cylinders arranged in a V shape when viewed from the front. They are commonly used in cars, trucks, and SUVs.

V engines come in various configurations like V6, V8, V10, or even V12, depending on the number of cylinders and the angle between the cylinder banks.

  1. Flat Engines (Boxer Engines): Flat engines have cylinders arranged horizontally and opposed to each other, resembling a boxer's fists. They are often used in vehicles where a low center of gravity is desired, such as sports cars and some motorcycles.

 Flat engines are typically found in configurations like flat-4 or flat-6, depending on the number of cylinders.

  1. Rotary Engines (Wankel Engines): Rotary engines have a unique design where a triangular rotor spins within a chamber, creating combustion cycles. They are known for their compact size and high power-to-weight ratio.

Rotary engines are less common in mainstream vehicles but have been used in some sports cars and aircraft.

Maintenance of the engine

  1. Maintenance of the combustion chamber involves ensuring proper functioning of the components involved in the combustion process.
  2. This includes regular inspection and replacement of spark plugs, fuel injectors, and air filters to maintain efficient combustion.
  3. Keeping the combustion chamber clean from carbon buildup and deposits is also important for optimal engine performance.

Overhauling and Decarbonization

Overhauling involves disassembling and inspecting the engine's components, including the combustion chamber, to ensure they are in good condition. During overhauling, worn or damaged parts may be replaced, and the combustion chamber may be cleaned to remove carbon deposits.

Decarbonization specifically focuses on removing carbon buildup from the combustion chamber and other engine components. This can be done through chemical cleaners, manual scraping, or specialized equipment that removes carbon deposits.

EVALUATION: 1. Mention and describe the 4 types of an engine

  1. State the basic maintenance for an engine
  2. Differentiate between overhauling and decarbonization

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively