Working Of 4 Stroke Petrol/Spark Ignition Engine. || Hindi || Jignesh Shah
four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed:
- Intake: Also known as induction or suction. This stroke of the piston begins at top dead center (T.D.C.) and ends at bottom dead center (B.D.C.). In this stroke the intake valve must be in the open position while the piston pulls an air-fuel mixture into the cylinder by producing vacuum pressure into the cylinder through its downward motion. The piston is moving down as air is being sucked in by the downward motion against the piston.
- Compression: This stroke begins at B.D.C, or just at the end of the suction stroke, and ends at T.D.C. In this stroke the piston compresses the air-fuel mixture in preparation for ignition during the power stroke (below). Both the intake and exhaust valves are closed during this stage.
- Combustion: Also known as power or ignition. This is the start of the second revolution of the four stroke cycle. At this point the crankshaft has completed a full 360 degree revolution. While the piston is at T.D.C. (the end of the compression stroke) the compressed air-fuel mixture is ignited by a spark plug (in a gasoline engine) or by heat generated by high compression (diesel engines), forcefully returning the piston to B.D.C. This stroke produces mechanical work from the engine to turn the crankshaft.
- Exhaust: Also known as outlet. During the exhaust stroke, the piston, once again, returns from B.D.C. to T.D.C. while the exhaust valve is open. This action expels the spent air-fuel mixture through the exhaust valve.
Join the telegram channel now:
https://t.me/Jigneshshah_Notes
PLAYLISTS:-
INDUSTRIAL ENGG:https://www.youtube.com/playlist?list=PLUwuYGQPHjTrdAWO3lkUgNC9cLaTJQPqC
MANUFACTURING ENGG:https://www.youtube.com/playlist?list=PLUwuYGQPHjTpZJs6zAmzHEVN8ti1vQMj7
MANUFACTURING SYSTEM:https://www.youtube.com/playlist?list=PLUwuYGQPHjTpQ3EmRlotqs6hlKwhGTr3M
THERMAL ENGG:https://www.youtube.com/playlist?list=PLUwuYGQPHjTrVx-oZjdBfjulXiI4tiiIx
METROLOGY AND INSTRUMENTATION:https://www.youtube.com/playlist?list=PLUwuYGQPHjTo-0dqTLPO6nMdTye0DqEmG
HYDRAULIC:https://www.youtube.com/playlist?list=PLUwuYGQPHjTrBufvPlzR6QCL1kDEY2DPb
DAMS AND RETAINING WALLS:https://www.youtube.com/playlist?list=PLUwuYGQPHjTqQ52iZo3R6VViLKF2vfrRk
FABRICATION TECHNOLOGY:https://www.youtube.com/playlist?list=PLUwuYGQPHjTpgJyoI-Hg2tknyDEJm8Fmc
COMPUTER AIDED MANUFACTURING:https://www.youtube.com/playlist?list=PLUwuYGQPHjToUKS1w7uBfUFkpIREJ2oEg
Follow me on :Facebook,Instagram,Bloggers,Twitter.
Instagram: https://www.instagram.com/jignesh_131/
Facebook : https://www.facebook.com/Jignesh-Shah-1313739588701714/
Bloggers : https://jigneshshahb1999.blogspot.in/
Twitter : https://twitter.com/JIGNESH64816174
Linkedin:https://www.linkedin.com/in/jigneshshahmsu99/
LIKE SHARE AND SUBSCRIBE..............
Comments
Post a Comment