saravanan.s
Answered On : Jul 8th, 2006
A four stroke engine is that which produces mechanical power from the chemical energy available in the form of fuel.
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harikrishnan
Answered On : Jul 10th, 2006
The four strokes means four stages of combustion including compression and expansion of the piston of the engine.
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Anne Srinivas.
Answered On : Jul 14th, 2006
A 4-s engine is that in which for every four revolutions of crank one power stroke is produced.
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venkatesh
Answered On : Jul 20th, 2006
A four stroke engine is defined as that in two cycles and four strokes such that suction compression expansion and exhaust will occur to produce one power stroke is known as four stroke.
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zaheer hussain
Answered On : Jul 31st, 2006
The 4s engine is nothing but it has two valves one is inlet and another is exhaust. the stroke will be done one by one like first suction,compression,power and exhaust, and for every four stroke there will be one power.this is four stroke engine
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mithun shah
Answered On : Aug 1st, 2006
when one autocycle is completed in two revolutions of crankshaft the engine is known as four stroke engine.
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ramanasreenivas burela
Answered On : Aug 13th, 2006
an engine in which the different processes called(inhaling the charge,compressing it,burningit,exhausting itoutside)are performed in engine cylinder where piston travels from one dead center to another deadcenter 4 times .
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ramkumar
Answered On : Aug 22nd, 2006
in four stroke engine,the power is produced after the two rotation of crankshaft.
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Gnanasakthidharan.N
Answered On : Sep 5th, 2006
The Working Cycle is completed by the complete two revolution of crankshaft is called as 4-stroke engine...
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Chaitanya
Answered On : Sep 21st, 2006
it has four strokes
1.suction
2.compression
3.power or expanstion
4.exhaust
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padmaja
Answered On : Oct 5th, 2006
A four stroke engine is a power producing device which produces a power stroke for 4 strokes they are
1.suction
2.compression
3.expansion
4.exhaust
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kannankumaraswamy
Answered On : Feb 5th, 2007
A completed operation of an engine that is Suctionstroke. compression stroke, expansion stroke and exhaust stroke is completed by the single rotaition of the crank shaft. Generally in a four stroke engine suction and compression takes at the first 180" degree of the rotation fo the crank shat and the expansion and exhasut stroke held at the remaining 180"degree of the crank rotaion. so by the complete rotation of 360"degree of a crank shaft all the four operation are completed, and hence it is called as four stroke engine
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dhavalchevli
Answered On : Feb 18th, 2007
in a 4 stroke engine, there occurs 2 revolutions or 4 strokes like suction expansion compression and exhaust . we get 1 power stroke per cycle() . piston reciprocates 4 times from tdc to bdc .
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jegan4all
Answered On : Feb 23rd, 2007
four stroke engine work on otto cycle.in this engine four process are done.1.suction2.compression3.power4.exhaust.at the time of 1st stroke fuel will enter in to cylinder.entered fuel compressed by the piston from bottom dead center to top dead center.at tdc spark plug ignited to make power stroke to movw piston from tdc to bdc.at the time of exhaust stroke waste air move out by moving piston from bdc to tdc.
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rishabh
Answered On : Jul 31st, 2007
4-stroke engine can be defined as a type of engine by which we get a power stroke in every two revolutions of the crank shaft.
while in 2-stroke, we get a power stroke in each revolutions of the crank shaft.
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ashwini pratap singh
Answered On : Oct 18th, 2007
Four stroks means sunction, compression, expension, exaust in one cycle.
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A four stroke engine is one whichcompletes itswork in four strokes or (two revolutions of the crankshaft) namely suction, compression, working and exhaust
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In four stokes the combustion, expansion, suction, power will take place in four stroke engine
Whereas in two strokes it will take place in two stoke engine.
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If the combustion process takes place within the 2 revolutions of the crank, it is called 4 stroke engine.
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4 stroke engine is an engine that completes its cycle in 4 strokes of order
1-Injection
2-Compression
3-Power Stroke
4-Exaust
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A engine in which combustion cycle completes within 2 rev of crank or 4 strokes of the piston is known as 4 -stroke engine.
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It is a type of engine in which engine cycle is completed in four stroke.
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In case of four stroke engine their are four event
1. Suction
2. Compression
3. Power
4. Exhaust
This four event are completed in within four moment of piston and one power stroke is obtain two(2) Revolution of crank shaft, i.e=(720degree) hence it is called as Four stroke engine.
2. Four stroke engine has less pick-up but torque is high.
3. Four stroke engine are available at two form 1. Petrol 2. Diesel
4. In case of Four stroke petrol engine there are 2 valves are used for suction & exhaust.
5. But in case of Four stroke diesel engine there are port are used for suction & exhaust.
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Four stroke engine is an engine in which 1 cycle=4 rotations or strokes of crank.
The combustion process takes place in 4 stages/parts/strokes.
1st stage-Suction
2nd stage-compression
3rd stage-Combustion & expansion
4th stage-exhaust
4 stroke engines are more fuel efficient as compared to 2 stroke engines but the thermal efficiency of 2 stroke engine is greater than that of 4 stroke engines.
Both diesel & petrol engines are now-a-days available in 4 stroke type.
Power produced per cycle by a 4 stroke engine is lesser than that of 2 stroke engine.
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In two revolution of crank shaft, one cycle is completed. This cycle consists of suction, compression, expansion, exhaust strokes.
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ram.krrish
Answered On : Jul 16th, 2011
which fuel is burned with in the engine proper stroke of 4stroke engine
1.compression
2.exhaust
3.intake
4.power stroke
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anbu
Answered On : Jul 17th, 2011
A 4 stroke engine works under suction,compression,power and exhaust strokes.here the crank shaft completes 2 revolutions to produce one power stroke.
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In four stroke engine, there are four stroke which are completed in two revolution of the crankshaft which are 2 as in case of 2 stroke.these 4 strokes are suction, compression, power or expansion & exhaust.
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