Ocean Robotics & Underwater Communications
High Efficiency Marine Thruster
This thruster utilizes recent advances in motor winding technology. The electric motor is enclosed within a waterproof, oil-filled housing attached by an integrated drive shaft to the outer surface of the thruster through multiple high-grade bearings and seals. The result is a durable, efficient design with a low noise signature. In addition, off-the-shelf motor controllers allow operators to take continuous advantage of rapid improvements in the motor controller industry. Offering proven performance through field testing, this thruster is meant for use on any aquatic vehicle (preferably submersibles) and is rated for use at depths of up to 11,000 m.
Dynamic Electric Motor
This technology is a novel Brushless DC (BLDC) motor system. The design is intended to decouple the torque constant from the speed constant in the BLDC motor system. This allows efficient torque and speed to be independent. The system couples two BLDC motors to a single shaft, with the first motor optimized for torque and coupled via a sprag bearing clutch. The second motor is optimized for speed and is directly coupled to the shaft. The outcome is a motor that is efficient over a large operating range