1. ENGINES
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Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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2. DEFINITION
• Engine: machine for converting
energy into motion or mechanical
work
• Fuel (oil, petrol, steam …)  Engine
 mechanical energy (rotary motion
of shaft)
• Engine vs. Motor
Engines
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3. CLASSIFICATIONS
– form of energy they utilize, as steam,
compressed air, diesel and gasoline
– the type of motion of their principal parts, as
reciprocating and rotary
– the place where the exchange from chemical
to heat energy takes place, as internal
combustion and external combustion
– the position of the cylinders of the engine, as
V, in-line, flat, and radial
– the number of strokes of the piston for a
complete cycle, as two-stroke and
Engines
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4. INTERNAL COMBUSTION ENGINES
• Continuous combustion: gas
turbine, jet engine, etc.
• Intermittent combustion: 2 stroke, 4
stroke, Wankel rotary engine, etc.
Engines
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5. JET ENGINES – Principle
Engines
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6. JET ENGINE – Parts
Engines
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7. JET ENGINE – How it works?
Engines
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8. 4 STROKE PETROL ENGINE
• STROKE: The distance the piston moves
when traveling from Bottom dead center
(BDC) to Top dead center (TDC) or vice
versa.
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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9. 4 STROKE PETROL ENGINE – Parts
Engines
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10. Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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11. 4 TROKE PETROL ENGINE - Operation
Intake
Compression
Engines
Power
Exhaust
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12. Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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13. 4 TROKE PETROL ENGINE – Cooling system
 keep the engine from overheating by
transferring this heat to the air
 allow the engine to heat up as quickly as
possible, and then to keep the engine at a
constant temperature.
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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14. Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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15. 4 STROKE PETROL ENGINE – Cooling system operation
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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16. 4 TROKE PETROL ENGINE – Lubricating system
Engines
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17. 4 STROKE PETROL ENGINE – Fuel system
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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18. Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
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19. 4 STROKE DIESEL ENGINE
Engines
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