käivitmootor

A käivitmootor, often translated as starter motor, is an electric motor used to crank an internal combustion engine and thereby start it. It is typically a powerful DC electric motor that draws its energy from the vehicle's battery. When the ignition key is turned or the start button is pressed, an electrical signal is sent to the starter motor. This signal energizes a solenoid, which engages a small gear on the starter motor with a larger gear on the engine's flywheel. The starter motor then spins rapidly, turning the flywheel and consequently the engine's crankshaft. As the engine begins to run under its own power, the starter motor disengages from the flywheel, and the ignition system takes over. The design of starter motors varies, but common types include direct-drive and gear-reduction starters. Gear-reduction starters are generally more efficient and provide higher torque. Starter motors are crucial components for the operation of most vehicles and other equipment powered by internal combustion engines.