How does a engine work?

Answer 1

A 4 cycle/stroke engine has 4 cycles (intake, compression, power, exhaust). On its intake step the piston goes down inside the cylinder and brings gas and air through the intake valve into the cylinder. On the compression step the intake valve closes and the piston comes back up compressing the gas and air. On power, the spark plug throws off a spark and ignites the gas and air in the cylinder sending the piston down with power to turn the crankshaft. Exhaust is the 4th step in a 4 cycle engine. The exhaust valve opens at the top of the cylinder and the piston is forced back up by the crankshaft pushing the leftover fumes out the valve. The exhaust is then pushed out through the exhaust pipe. This information is only accurate in a 4 cycle/stroke engine.

Answer 2

A model train engine works by taking up an electrical charge out of the metal track through metal engine's wheels that travel on the track. The electric power is transferred from the wheels on to the electric motor, which causes the electric motor to run.

The train motor connects to the locomotive's wheels through a mechanized drive arrangement. As the electric current turns the locomotive's motor, the train's motor moves the gears which then spin the engine's wheels and thrust the locomotive down the train rails. Not all that complicated!

The exact contact point where the locomotive wheel touches the rail can be quite tiny. This is exactly why it does not take much in the way of dust or debris to obstruct the wheel-to-rail contact. Debris may very well accumulate, so it is very important for you to keep your engine's wheels clean and free of accumulated grime. If the engine's wheels of your engine are dirty, they may not make very good contact with the metal rails, and your engine could very well stall. Bear in mind, plastic train's wheels won't transmit electrical current.

A good toy locomotive needs properly working train's wheels and properly maintained gears. Shoddy performance by a locomotive is often caused by problems with the gears or problems with the wheels. However, there are lots of other things which can cause model train engines to malfunction