This is the 497th most frequent Hebrew word.
מנוע
Engine; motor.
Here, the word 'מנוע' refers to the engine, which is the component in a car responsible for converting energy into motion.
המנוע של המכונית נשמע תקול.
The engine of the car sounds faulty.
In this context, 'מנוע' describes the motor that powers the fan, indicating its mechanical role.
בביתנו יש מאוורר מנוע שקט במיוחד.
In our house we have a fan with an especially quiet motor.
In this sentence, 'מנוע' (powered or driven) metaphorically describes the software's functionality being driven by the specified algorithm.