The expansion stroke is a phase in the four-stroke engine cycle where the combustion gases expand, pushing the piston down in the cylinder. This occurs after the power stroke, where the fuel-air mixture has been ignited. During this stroke, the piston moves from the top dead center to the bottom dead center, converting thermal energy from combustion into mechanical energy. This process is essential for generating the power needed to drive the engine.
there are two stroke include in this forward stroke &return stroke during the forward stroke machine works means it removes the material from workpiece & during the return stroke machine remains idle
During the return stroke it does not remove any material, it is an idle stroke so to improve the cutting efficiency it will move faster during the return stroke. Pradip Kotak.
No, the intake stroke pulls fuel-air into the cylinder, the compression stroke squeezes (compresses) this mixture into a small volume.
On a 2 stroke engine, each cylinder fires every time the piston comes up. On a 4 stroke engine, the cylinder only fires every OTHER time the piston comes up. 4 stroke engines have 4 strokes: Intake, compression, power, and exhaust. 2 stroke engines complete these cycles in only two strokes of the piston by use of ports in the cylinder walls. 2 stroke engines usually produce more power for a given weight/size. But, in gasoline engines, 2 stroke engines are typically less efficient (use more gas) and have much higher pollution levels (note: some newer "direct injection" 2 stroke engines do much better on pollution levels than the typical 2 stroke)
In a four-stroke engine, the intake valve opens in the intake stroke, allowing air-fuel mixture to enter, while the exhaust valve remains closed. During the compression stroke, both valves stay closed to build pressure. In the power stroke, the fuel ignites, pushing the piston down, with both valves still closed to retain pressure. Finally, in the exhaust stroke, the exhaust valve opens, allowing gases to escape, while the intake valve stays shut. This cycle repeats continuously, ensuring efficient engine operation.
No.
the engine works on suction,compression,expansion and exhaust.this works done very quickly
Theres an expansion chamber on the right side of 2-strokes. Its a fat pipe between the front of the engine and the exaust....
Air and fuel intake, compression and ignition, combustion and expansion, exhaust
the engine works on suction,compression,expansion and exhaust.this works done very quickly
The four-stroke engine cycle.
In a stroke engine, the stroke increases the force of combustion by creating a larger volume in which the air and fuel mixture can burn. This larger volume allows for greater expansion of the gases during combustion, which results in increased pressure and force exerted on the piston.
air and fuel intake, compression and ignition, combustion and expansion, exhaust
The heat from the combustion reaction causes the pistons to move during the power stroke in the four-stroke engine cycle. This is when the high-pressure gases from the combustion expand, pushing the piston downward.
The stroke that begins as the compressed fuel mixture is ignited in the combustion chamber is the power stroke. This occurs after the compression stroke when the spark plug ignites the fuel-air mixture, causing a rapid expansion of gases that pushes the piston down, generating power. This downward movement of the piston converts the chemical energy of the fuel into mechanical energy.
Compression and ignition
Air and fuel intake, compression and ignition, combustion and expansion, exhaust