Generator Drive via Tunnel Gearbox
The generation of electrical power on ships with two-stroke diesel or dual fuel drives can be achieved in many different ways. The most space-saving solution with regard to axial length is the generator drive through the main engine via a tunnel gearbox, which encloses the closed propeller shaft line. This means that the highly flexible connection from the propeller shaft flange to the hollow gearbox shaft, necessary for elimination of inadmissible rotational vibrations in the generator drive, can only be achieved through a segmented coupling. Looking at this in another way, this means that this type of drive could only be realized following development of the RATO S.