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Engines and Motors.

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Presentation on theme: "Engines and Motors."— Presentation transcript:

1 Engines and Motors

2 Types Internal Combustion Engines External Combustion Engines

3 Internal Combustion-Basic Parts
Crankcase Crankshaft Piston Piston Rings Connecting Rod 4-Stroke Engine Valvetrain Camshaft Valves

4 Crankcase Main Structural component of the engine.

5 Piston Cylindrical part fitted in a cylinder
Transmits power created by the combusting fuel & air

6 Piston Rings Seals the Piston to the Cylinder Wall

7 Connecting Rod Links Crankshaft to Piston

8 Crankshaft Converts the Linear motion of the piston to a Rotary motion.

9 4-Stroke Engine-Valvetrain
Camshaft Operates Valves Valves Open and Close Ports

10 Internal Combustion Engines
4-Stroke Gas 2-Stroke Gas

11 4-Stroke Gas Engines 4 Stroke / Cycle Intake Compression Power Exhaust

12 Intake Stroke Piston moves down drawing in fuel and air.

13 4-Stroke Gas Engines - Intake

14 4-Stroke Gas Engines - Compression
Piston moves up, squeezing the fuel and air

15 4-Stroke Gas Engines - Compression

16 4-Stroke Gas Engines - Power
Near Top Dead Center spark ignites the fuel and air combusting the vapor forcing the piston down.

17 4-Stroke Gas Engines - Power

18 4-Stroke Gas Engines - Exhaust
Piston moves up forcing out the spent gasses

19 4-Stroke Gas Engines - Exhaust

20 4-Stroke Gas Engines 4-Stroke In Action Pros Cons Easy to Refuel
Light Weight Inexpensive Cons Only 30% Efficient

21 2-Stroke Gas Engines Completes the 4-cycles in 2-strokes No Valvetrain
Uses Transfer Ports

22 2-Stroke Gas Engines 2-Stroke in action Advantages: Disadvantages:
Less Moving Parts Light Weight Twice as Powerful Operating Position Disadvantages: Frequent Rebuilds Pollution Burns Oil

23 External Combustion Engines
Steam Engines Rocket Engines

24 Steam Engines Steam engines were the first engine type to see widespread use. Used to pump water

25 Steam Engines

26 Rocket Engines Rocket engines are reaction engines. Two Types
Solid Fuel Liquid Fuel

27 Solid & Liquid Fuel

28 The End


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