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
By Nguyen Van Khanh – khanhnv135@gmail.com
2
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
By Nguyen Van Khanh – khanhnv135@gmail.com
3
4. INTERNAL COMBUSTION ENGINES
• Continuous combustion: gas
turbine, jet engine, etc.
• Intermittent combustion: 2 stroke, 4
stroke, Wankel rotary engine, etc.
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
4
5. JET ENGINES – Principle
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
5
6. JET ENGINE – Parts
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
6
7. JET ENGINE – How it works?
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
7
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
8
9. 4 STROKE PETROL ENGINE – Parts
Engines
By Nguyen Van Khanh – khanhnv135@gmail.com
9
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
13
