1. Increased Fuel Delivery: The gas pedal is connected to a throttle mechanism. Pushing it opens the throttle, allowing more air to enter the engine's combustion chambers. Simultaneously, more fuel is injected (in fuel-injected engines) or drawn in (in carburetor-equipped engines) to maintain the correct air-fuel mixture.
2. Combustion: This increased air-fuel mixture is then compressed and ignited by a spark plug (in gasoline engines) or through self-ignition (in diesel engines). This combustion process creates a rapid expansion of gases.
3. Power Stroke: This expanding gas pushes down on the pistons within the engine's cylinders. This downward force is the power stroke.
4. Crankshaft Rotation: The pistons' linear motion is converted into rotational motion by the crankshaft. The crankshaft is the central rotating shaft of the engine.
5. Transmission: The rotating crankshaft's power is transferred to the transmission. The transmission multiplies the torque (rotational force) and adjusts the speed of rotation depending on the gear selected.
6. Driveshaft and Wheels: The power from the transmission is then sent to the driveshaft (or axles in some vehicles) and ultimately to the wheels.
7. Acceleration: The rotational force at the wheels pushes against the road surface, creating a forward force that overcomes friction and inertia, resulting in the car's acceleration.
In short, pushing the gas pedal increases the power generated by the engine, which is then translated into motion and acceleration of the car.
