At the end of thirty minutes, 90 % of the students are expected to a. Define Engine Valve b. Identify the types of engine valves c. Appreciate the function.

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Presentation transcript:

At the end of thirty minutes, 90 % of the students are expected to a. Define Engine Valve b. Identify the types of engine valves c. Appreciate the function of engine valves d. Enumerate the parts of an engine valve

ENGINE

1. MOVING PARTS 2. NON-MOVING PARTS MAIN PARTS OF AN ENGINE Both can be found in the Internal part of an Engine

ENGINE VALVES It regulates the entrance of fuel charge or air into the engine cylinder and the discharging of burned gases out of the engine cylinder

TYPES OF ENGINE VALVES 1. INTAKE VALVES - Is a valve that open and closed the intake ports, where the air and fuel mixture enter inside the engine cylinder 2. EXHAUST VALVES - Is a valve that open and closed the exhaust ports, and allow the burned gases to escape from the engine cylinder. 1. INTAKE VALVES - Is a valve that open and closed the intake ports, where the air and fuel mixture enter inside the engine cylinder 2. EXHAUST VALVES - Is a valve that open and closed the exhaust ports, and allow the burned gases to escape from the engine cylinder.

PARTS OF ENGINE VALVE

VALVE SPRING RETAINER LOCK GROOVES

VALVE STEM

VALVE FACE

VALVE HEAD

EVALUATION 1. Define Engine Valve? 2-3 Give the two types of engine valves 4.Give the function of an intake valve 5.What is the function of exhaust valve? 6-9. Identify the parts of an engine valve 10. Why is intake valve is bigger than exhaust valve?

ASSIGNMENT Answer the following question in a ½ sheet of paper. 1, What is Piston Ring? 2. Give the purpose and function of a Piston Ring? 3. What type of material is used in Piston Ring? Answer the following question in a ½ sheet of paper. 1, What is Piston Ring? 2. Give the purpose and function of a Piston Ring? 3. What type of material is used in Piston Ring?