How Do Bus Engines Work?

Answer

Bus engines use petrol fuels to operate. The engine uses the principle of gas heating up when compressed. The engine brings air into the cylinder as the piston moves away to clear space for it. When the piston comes back towards the intake valve, it compresses the air that was just brought in and heats it at the same time. Fuel is then infused under elevated pressure as well as the piston reaches the end of its compression. The elevated heat of the air ignites the fuel, which makes the gases in the chamber to quickly expand and force the piston back down.
1 Additional Answer
A bus engine that uses diesel works by four simple strokes. First, the intake stroke during which the valve opens up thereby letting in air and pushing the piston downwards. After that comes the compression stroke; here, the piston moves back up then compresses the air. When the piston reaches the top, fuel is injected into the system; igniting and forcing the piston back down. Finally, the piston moves back up, pushing the exhaust fumes from the combustion out through the exhaust pipe.
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