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International University of Business Agriculture and Technology

4 stroke petrol engine
working principal
By Nur-E-Alam Si...
4 stroke petrol engine
Major parts









Engine
Cylinder
Piston
Crank shaft
Engine valve
Connecting rod
Cam sha...
INTAKE STROKE






Intake valve open
Exhaust valve closed
Piston go to TDC to
BDC
Air-fuel mixture enter
in to the cy...
COMPRESSION STROKE






Intake valve closed
Exhaust valve closed
Piston go to BDC to
TDC
Air-fuel mixture
compressed ...
POWER STROKE






Intake valve closed
Exhaust valve closed
Air-fuel mixture burn
into the combustion
chamber
Piston g...
EXHAUST STROKE






Intake valve closed
Exhaust valve open
Piston go to BDC to
TDC
Exhaust gas out
through the exhaus...
BIBILIOGRAPHY
1.
2.

YAHOO.ANSWER.COM
GOOGLE.COM
Any Question

?
4 stroke petrol engine working principal
4 stroke petrol engine working principal
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4 stroke petrol engine working principal

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4 stroke petrol engine working principal

  1. 1. International University of Business Agriculture and Technology 4 stroke petrol engine working principal By Nur-E-Alam Siddike Id 10307050
  2. 2. 4 stroke petrol engine Major parts         Engine Cylinder Piston Crank shaft Engine valve Connecting rod Cam shaft Spark plug
  3. 3. INTAKE STROKE     Intake valve open Exhaust valve closed Piston go to TDC to BDC Air-fuel mixture enter in to the cylinder
  4. 4. COMPRESSION STROKE     Intake valve closed Exhaust valve closed Piston go to BDC to TDC Air-fuel mixture compressed in to the cylinder
  5. 5. POWER STROKE     Intake valve closed Exhaust valve closed Air-fuel mixture burn into the combustion chamber Piston go to TDC to BDC
  6. 6. EXHAUST STROKE     Intake valve closed Exhaust valve open Piston go to BDC to TDC Exhaust gas out through the exhaust valve
  7. 7. BIBILIOGRAPHY 1. 2. YAHOO.ANSWER.COM GOOGLE.COM
  8. 8. Any Question ?

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