what is otto cycle ??

Posted by MADHUR | Labels: cars, combustion stroke, compression stroke, exhaust stroke, four stroke, intake stroke, nikolaus otto, otto cycle

nikolus otto

The four-stroke approach is also known as the Otto cycle, in honor of Nikolaus Otto, who invented it in 1867.

the four stroke are

Intake stroke
Compression stroke
Combustion stroke
Exhaust stroke

The piston is connected to the crankshaft by a connecting rod. As the crankshaft revolves, it has the effect of "resetting the piston"

what is intake stroke ????

The piston starts at the top, the intake valve opens, and the piston moves down to let the engine take in a cylinder-full of air and gasoline. This is the intake stroke.

plz note:- Only the tiniest drop of gasoline needs to be mixed into the air for this to work.

what is compression stroke ???

after the cycle of intake stroke the piston moves back up to compress this fuel/air mixture. Compression makes the explosion more powerful.

what is combustion stroke ??

When the piston reaches the top of its stroke, the spark plug emits a spark to ignite the gasoline. The gasoline charge in the cylinder explodes, driving the piston down.

what is exhaust stroke ??

Once the piston hits the bottom of its stroke, the exhaust valve opens and the exhaust leaves the cylinder to go out the tailpipe.

Now the engine is ready for the next cycle, so it intakes another charge of air and gas.

Notice that the motion that comes out of an internal combustion engine is rotational, . In an engine the linear motion of the pistons is converted into rotational motion by the crankshaft. The rotational motion is nice because we plan to turn (rotate) the car's wheels with it anyway.