In the two stroke petrol engine as you know suction,compression,ignition,expansion and exhaust is completed in only two stroke and one revolution of crank wheel
more over diesel ignites at very high pressure which is not the same in case of petrol........if petrol is also ignited under pressure it explodes producing a big thumping sound.called KNOCKINGthis may reduce the power output and also lead to breakdown of the engine.
For the above reason two stroke engine cannot compress air and ignite the fuel like diesel engine.
two stroke engine are better than 4-stroke engine in the following ways:-
in 2 stroke engine there is only one revolution of crank shaft and in each revolution the power is delivered (in power stroke). thus it has a good mechanical efficiency rather than the 4- stroke engine.
also the power we get through 2-stroke engine is double than the 4-stroke engine because of the same reason written above.
2-stroke engine is lighter than the 4-stroke engine because in 2- stroke engine there are no valve mechanism thus no push rod, cam-follower arrangment, rocker arm etc, thus 2-stroke engine is lighter than the 4-stroke engine.
in 2 stroke engine in each revolution the power is delivered (in power stroke) thus torque is uniform, hence less torsional oscillation occurs.
They are, microlight or ultralite aeroplanes use typically a Rotax two stroke engine. They are very reliable (used for skiddos) and cheap compared to the alternatives.
It is possible but has not been invented and would most likely be inefficent
The first two-stroke engine to have any success was built in 1878 by Sir Dugald Clerk. He was granted a patent for it in 1881.
suction stroke and exhaust strokes are the two strokes involved in 2 stroke engine....
In my point of view two stroke engine is the best engine ,because in two stroke engine there are only two stages or two stroke .In which one stage complete the two process frist is suction & second one is compression ,in these two process completes in one stage. The best advantage of this engine is the in every cycle there is a power stroke due to which the engine performance is very good . But the biggest disadvantage is the fuel consumption . Which after some time reduced by the resarcheres.
valves are use in four stroke engine, and ports are use in two stroke engine.
if you see the difference between valves
For two Stroke Engine TVS50 is a Example and for Four Stroke Engine Pulsar, Apache are the examples......
two stroke diesel engine is used in cargo ships as cross head type engines, two stroke petrol engines used in two wheelers.
motorcycles
its two stroke ngine
Explain the advantages of four-stroke engine over two-stroke engine
in my opinion a two stroke engine is a better quality engine as compared to a four stroke engine!
Detroit diesel engine is an example of two stroke engine
two stroke
In a two-stroke reed valve engine the reed valve is used to seal the fuel air mixture in the crankcase.
You freeze up the engine
Engine, not motor. It'll typically be a two stroke engine with one or two cylinders.
A two stroke engine has half the strokes of an otto (or four stroke) engine, therefore it takes two crankshaft roatations to complete a cycle on a four stroke engine and only one revolution in a two stroke engine. There are several types of two stroke engines, the different types have to do with how the receive the air/fuel mixture, also you have two stroke diesel engines.
suction stroke and exhaust strokes are the two strokes involved in 2 stroke engine....