käivitusseade

Käivitusseade, commonly referred to as a starter or starter motor, is a crucial component in internal combustion engines. Its primary function is to initiate the engine's rotation, enabling the combustion process to begin. Without a käivitusseade, manually cranking a modern engine would be impractical, if not impossible.

The käivitusseade typically operates by utilizing an electric motor powered by the vehicle's battery. When the ignition key is turned to the start position, an electrical signal is sent to the käivitusseade. This activates a solenoid switch, which engages a small gear, known as the pinion gear, with the engine's flywheel. The electric motor then spins the pinion gear, which in turn rotates the flywheel, thereby turning the engine's crankshaft. Once the engine starts running on its own, the solenoid disengages the pinion gear from the flywheel, and the käivitusseade deactivates.

The design and power of a käivitusseade vary depending on the size and type of the engine it serves. Larger engines, such as those found in trucks or heavy machinery, require more powerful käivitusseadmed to overcome their greater inertia. The reliability of a käivitusseade is essential for the overall functionality of a vehicle, as a malfunctioning starter motor will prevent the engine from being started. Regular maintenance and proper battery voltage are important for ensuring the longevity and efficient operation of this vital component.