Kumera offers a wide range of standard gearboxes. The standard gearboxes may also be customized according to special requirements.
Utilizing a modular design-base a customized gearbox can be developed with a limited amount of work and high functionality.
Customized gearboxes will be tailored to the specific vessel’s operational profile and tasks, supporting the required performance at low operational cost. Please see below for some different cases:
For the tug BB-Power a 4MW gearbox with two driving shafts was manufactured. The design was based for a vessel concept developed by the ship owner Bukser & Berging. Each gearbox is driven by two diesel engines, a small and a large one. The engines can be used separately or simultaneously for boost effect. This helps optimizing the engine running conditions vs. the specific vessel operation. The gearbox also has a two-speed capability, i.e. two built in transmission ratios between engines and propeller. This will allow efficient operation in different modes such as transit and bollard pull.
For a Small Water Area Twin Hull (SWATH) vessel built in Taiwan, Kumera has developed a gearbox configuration for the propulsion line, utilizing two bevelgearboxes per propulsion line. This is a cost effective design, based on our excellent experience with bevel gearboxes, fitting perfectly into the slender hulls of the SWATH concept.
The ferry Tresfjord, owned by Fjord 1, was re-powered to integrate LNG based propulsion, in addition to the original diesel propulsion. Kumera supplied an intermediate gearbox in-order-to allow the integration of the added LNG system.
Please send more information regarding the selection of a suitable gearbox for your vessel