7/31/2023 0 Comments 4 stroke si combustion tempatureCombustion changes the composition of the gas mixture to that of exhaust products and increases the temperature in the cylinder to a very high peak value. The combustion of an air-fuel mixture occurs in a very short but finite length of time with the piston near TDC. Near the end of the compression stroke, the combustion is initiated with the help of spark plug. As the piston moves upward, it compresses the air-fuel mixture raising both the pressure and the temperature inside the cylinder. As the air passes through the intake system, fuel is introduced into the cylinder in the desired amount with the help of fuel injectors or carburetor.Īt the end of suction stroke, when the piston reaches BDC, the intake valve gets fully closed and the piston travels upward back to TDC with both the valves (inlet and outlet) closed. The resulting pressure differential through the intake system from atmospheric pressure on the outside to the vacuum on the inside causes air to be pushed into the cylinder. The downward motion of the piston increases the volume in the combustion chamber which in turn creates a vacuum. It is also known as intake stroke when the piston travels from TDC to BDC with the intake valve open and exhaust valve closed. 4.2 Four stroke Spark Ignition (Petrol) engine
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |