valve and port timing diagram on ic engines

1. A presentation on
Valve and Port timing diagrams
of IC engines
By,
Vinay Kumar Addagiri
14761A0361

2. IC Engines

3.  IC engines play a vital role In our day to day life. They are inseparable from our daily
activities.
 They played a major role in industrial revolution.
 They are also used for various domestic and industrial purposes.
 They are considered the hearts of all automobiles, aircrafts and ships.
 They are also widely used in cutting and drilling machinery.
IC Engines
 They eased up transportation and connected various parts of the world. Thus they
helped in achieving globalization.

4. Working
of
IC Engines
4 - Stroke

5. Working of
4 Stroke Engine
Suction
Compression
Power
Exhaust

6. Theoretical Valve Timing Diagram
Inlet valve opening
Inlet valve Closing
Exhaust valve Closing
Exhaust valve opening
Suction
Compression
Power
Exhaust
TDC
BDC

7. Actual Valve Timing Diagram
TDC
BDC
Inlet valve opening
Inlet valve Closing
Exhaust valve Closing
Exhaust valve opening
Suction
Compression
Power
Exhaust
βθ
φ α
Crank angle =
Circumference of fly
wheel in cm
X 360o
Arc length in cm

8. Working
of
IC Engines
2 - Stroke

9. Working of
2 Stroke Engine
Compression
(Up Stroke)
Power
(Down Stroke)

10. TDC
BDC
IPC
EPO
TPOTPC
EPC
IPO
β β
θθ
φ φ
Transference
Compression
Power
Exhaust
Port Timing Diagram
Crank angle =
Circumference of fly
wheel in cm
Arc length in cm
X 360o

11. Thank you
Any queries??