what is the strokes of a 1342 and 1243 engine?

Question

i have the stroke names i just need to know the action taking place in the cylinder

Answer 1

Induction - air and fuel are drawn into the cylinder

Compressions - the piston now squeezes the mixture - this heats the mixture - and in a diesel engine, the compression and heat is so great that it automatically triggers the next part of the cycle - see below :)

Ignition/Power - The mixture is ignited either by a spark for petrol/gas or by the heat of the compression (diesel) and pushes the piston back down the cylinder with considerable force - the useful stroke

Exhaust, the piston comes back up the cylinder again, this time pushing the burnt mixture out of the exhaust, clearing the cylinder ready for the cycle to start again.

Mark

Answer 2

All 4 cycle style engine have 4 strokes...1, intake stroke is where the piston travels downward and sucks in air and fuel (in gas engines), 2 compression stroke is where the piston travels upwards and compresses the fuel air mixture into a space a fraction of it's orginal size (example is compression ration of 8:1, the intake charge is compressed to 1/8th it's orginal volume), it's ignited by the spark plug and the burning gases expand and force the piston downward and is called the # power stroke. This is what turns the crankshaft and creates rotaional movement to turn the wheels. Once the piston is all the way down, the inertia of the turning crankshaft pushes the piston upwards, expelling the burned gases out. The valves sequence of operation is as follows: the intake is open during the intake stroke, letting fuel and air into the cylinder. Both valves are closed during the compression and power stroke and the exhaust valve is open on the exhaust stroke, letting the burned exhaust gases out through the exhaust pipe.

Two stroke engines like weed eaters, chainsaws and dirtbikes have all four strokes except they are squeezed into two strokes of the engine. Instead of poppet valves that open and close, they have ports on the side of the cylinder that are uncovered or covered as the piston moves up or down. The intake charge goes in one side while the exhaust gases are exiting the port on the other side. They are powerful for their cylinder displacement and weight, but are fuel ineffecient and produce more pollution.

Regardless of the type of engine, the numbers you used are merely the order in which the cylinders fire. 1342, #1 fires first, then #3, then #4, then #2. The firing order on 4 cylinder engines varies according to the configuration of the crankshaft throws. Either the the pistons alternate between up and down or the two outside are up together while the two middle ones are down together.

Answer 3

you're talking firing order, correct? The question sounds rather strange, as all four stroke engines complete the same four steps in two engine revolutions, regardless of firing order. Go check out wikipedia.

Answer 4

i dont know