This parallel hybrid system is capable of generating electricity for hotel loads. It’s most suitable for vessels with long waits between jobs (e.g., tugs, pilot boats, workboats in general, military vessels, and yachts), and for those operating in restricted areas and zero-emission zones. Twin Disc technology enables implementation into any standard marine transmission.
During low-power operation, the e-motor can use excess diesel power to generate electricity for hotel load, allowing the hotel load generator to be shut down
In high-demand phases, electric power can boost diesel power
Marine Transmission
Based on standard marine transmission, with same footprint and selection criteria, for worldwide support
No trailing pump needed; transmission is lubricated as diesel or e-motor drives it
Efficient design minimizing losses
MasterClutch™
Provides power generation through PTO/PTI in forward, neutral, and reverse
Prevents engine back-driving during electric-only operation
Allows all features of QuickShift® transmission
PTI Gearbox
Drives transmission primary shaft (same as engine) with MasterClutch™ providing disconnect
Allows for standard speed/smaller e-motor through motor speed reduction
Offset to propeller shaft enables installation of large motors
Reductions from 1.0:1 to 2.5:1
Integrated sea water pump cools transmission during electric propulsion
PTO available for onboard hydraulics (e.g., steering pump)