Sep
30
How Exactly Does A Single Cylinder Four Stroke Piston Engine Work?
ByQuestion: I understand the four strokes of a piston engine,but i don’t know how the piston falls in the first stroke,then it again rises in the second stroke,and how it rises to push the waste gases out in the fourth stroke.People told me that it was because the crankshaft rotated,but what causes the crankshaft to rotate?Can some one please answer my question?Thank you.
6 Comments
September 30th, 2009 at 7:36 pm
The crank keep rotating because it has a flywheel connected to it. A flywheel is like a big weight that has rotational momentum. It has enough momentum to keep the engine going between power strokes.
September 30th, 2009 at 7:45 pm
After the power stroke, momentum is what moves the piston through the other strokes. The weight of the piston crown basically does all this with reserve energy from the combustion stroke. The motion up and down is directed by the crankshaft using the momentum. In a single cylinder engine, one cylinder does all of this work, which is why the engine will run rougher than a multi cylinder powerplant. In multi cylinder engines, the power strokes occur more often which aids in the smooth motion through the non power strokes in each cylinder.
September 30th, 2009 at 7:56 pm
The other pistons push around the crankshaft. So while one piston is pushing waste gas out, another piston is on the “Bang” cycle and providing the energy to throw the crank.
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September 30th, 2009 at 8:10 pm
hey when you starts the engine by moving key in the ignition bar then due to the power of battary the crankshaft is revolved and first stroke takes place. in bikes u kick the engine and the kick revolves the crankshaft and piston moves downward and air fuel mixture is sucked into cylinder. after engine started it works automatically.
September 30th, 2009 at 8:21 pm
it is hard to explain in words….
hot gas with high pressure pulls the piston down.
the piston is connected to the crankshaft which is coupled with flywheel.
which is a energy balance r.
gives energy for next rice
typical flywheel of motorbikes rotates at rpm ranging from 3000-12000(100cc-250cc)
ships engine the most powerfull engines flywheel rotates at 20-200 rpm
September 30th, 2009 at 8:27 pm
hey pal try the link below, it may clear your doubt.
http://www.youtube.com/watch?v=fOojOpQ7KCs