Very quiet Valmet

Transmission In designing the twin input/single output reduction gearboxes for the cruise ship Blue Sea,Valmet Power Transmission paid special attention to noise reduction. The transmissions will couple four 5,280kW Wartsila 8L38 engines rotating at 600 rev/min to twin propellers requiring a speed of 119.4 rev/min. To reduce noise the gear tooth profile has been altered […]