With a hybrid gearbox, two in-shafts will be available, e.g. two different powers sources will drive the intended application, either separately, or simultaneously.
Most Kumera hybrid gearboxes are utilized for, hybrid vessel propulsion, representing a key enabler when configuring a hybrid propulsion line. The most advanced solution delivered so far was for the vessel BB Power:
A typical hybrid application today is utilizing one diesel engine, and one electric motor, often including a battery pack. The electric motor can also be of a type which can be used as a generator, allowing the battery package to be charged underway.
Using batteries, the vessel can have a pure electrical mode, resulting in no emissions, in turn creating a more pleasant work environment on deck, at the same time protecting the environment.
However, for a hybrid gearbox, all types of power sources can be used, i.e. diesel, electric, LNG, etc., and they can also be the same type of power sources. For instance, for the BB Power tug shown above, a combination of two diesel engines were used for each gearbox, in a father-and-son configuration.
Please see more details at hybrid propulsion gearboxes.