Since autos cannot have power cords, this device is provided to generate electricity on-board. Alternators used to be called generators. A belt from a pulley on the engine drives the alternator which converts this mechanical energy into electrical energy. Basically oxygen is concentrated this way to make the explosion of the fuel very powerful.
Low compression means low power from the engine.
In front wheel drive vehicles, it s necessary to transmit power to the front wheels as they are turned from side to side by the steering mechanism. Also, as the vehicle makes turns, the wheels on either side must turn at different speeds while still transmitting power. CV joints are the mechanical couplings that allow this to happen. The boots are accordion-like pleated, rubber covers that prevent the CV joints from being exposed to weather and keep them lubricated. The engine s powerful explosions take place at the top of the cylinder.