An automobile engine is a complex machine that works on the principles of internal combustion. Here are the basic steps involved in how an automobile engine works:

1) Intake Stroke: The engine sucks in a mixture of fuel and air through the intake valve as the piston moves down.

2) Compression Stroke: The piston moves back up to compress the fuel-air mixture, increasing its temperature and pressure.

3) Power Stroke: The spark plug ignites the compressed fuel-air mixture, causing a rapid combustion that creates an explosion, which pushes the piston down, creating rotational force or torque.

4) Exhaust Stroke: As the piston moves up again, it pushes the remaining burnt gases out of the engine through the exhaust valve.

These four steps are collectively known as the four-stroke cycle, which forms the basis of most modern automobile engines. The rotational force or torque generated by the engine is transmitted through a transmission system to the wheels of the vehicle, propelling it forward.

Modern automobile engines are typically four, six, or eight cylinders. The more cylinders an engine has, the more power it can generate. The engine also contains other important components such as the crankshaft, camshaft, valves, and pistons, which work together to ensure the smooth operation of the engine. The engine requires other supporting systems to function correctly, such as fuel, cooling, and lubrication systems, which work together to ensure optimal engine performance and longevity.
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