Electric Thrusters

We Design Some of the Most Powerful,

Efficient & Reliable Electric Thrusters in the World

Electric Thrusters are used on Remotely Operated Vehicles (ROV’s), AUV,s, Submarines and basically any underwater device that needs Electric Propulsion to move underwater.

We have many different off the shelf Electric Thrusters and we also can Customize Solutions/Systems for R & D Programs or Prototype Vehicles, small or large. These thrusters can be precision matched to each application.  Many times at very minimul cost since we have many Electric Thrusters that are not listed on the website.

In order to properly evaluate different thruster systems, it is important to understand and consider the size of the units, as the propeller diameter has a big impact on the level of thrust produced by each horsepower of input. The necessary data is easily available on most specification sheets from each manufacturer to obtain different values of thrust with corresponding input power. In some cases, input power is only provided indirectly by giving Hydraulic Pressure and Flow Rate for hydraulic thrusters, or for electrical motors by giving voltage and current. All of these parameters will provide values of input power at that thrust level.

This is dependent on the required speed, and the efficiency in converting motor torque (power) into actual thrust of the propeller. Assuming it is a direct drive from the motor, it will depend on propeller efficiency, which in turn is dependent on rpm and diameter. For reasonable power and  duration it will not be much above hull speed which is dependent on the length of the boat. The other dimensions including beam and draft will represent the displacement  (weight) of the boat and therefore the power required  to reach the desired speed. The required power of the motor can then be calculated based on the speed, hull dimensions, and displacement of the hull. – See more at: http://www.maineelectricboats.com/electric-propulsion/#sthash.yuWSvhFI.dpuf
This is dependent on the required speed, and the efficiency in converting motor torque (power) into actual thrust of the propeller. Assuming it is a direct drive from the motor, it will depend on propeller efficiency, which in turn is dependent on rpm and diameter. For reasonable power and  duration it will not be much above hull speed which is dependent on the length of the boat. The other dimensions including beam and draft will represent the displacement  (weight) of the boat and therefore the power required  to reach the desired speed. The required power of the motor can then be calculated based on the speed, hull dimensions, and displacement of the hull. – See more at: http://www.maineelectricboats.com/electric-propulsion/#sthash.yuWSvhFI.dpuf

Brushless DC Electric Thrusters

 

 electric thrusters  1004BE Electric Thrusters
1002 SERIES ELECTRIC THRUSTERS 1004B SERIES ELECTRIC THRUSTERS

 

–  Being of superior hydrodynamic design, the venturi shape of the 1002 & 1004B Thrusters are ideally suited for Electric Drive.  The Venturi shape of the thruster duct is used to allow a higher rotation speed with smaller diameter and higher pitch-to-diameter ratio props.  This increases the efficiency and the rpm and allows the prop to turn faster for the same power.

–  The 1004B Series Electric Thrusters are designed to operate from 110-300 VDC with a Bollard Thrust of 45 to 70 lbsf depending on the model chosen.

–  The 1002 Series Electric Thrusters are designed to operate from 100-600 VDC with a Bollard Thrust of 266 to 665 lbsf depending on the model chosen.

–  Customized Solutions/Systems for R & D Programs or Prototype Vehicles, small or large. These electric thrusters can be precision matched to each application.

–  Streamlined Brushless DC, oil filled and pressure balanced direct drive electric submersible motors.  Capable of going to full ocean depth.

–  Independently Tested Off-The-Shelf Units

–  The electric motors are available with no feedback or with resolver or hall effect for accurate servo control.

All our Electric Motors have a 3 tier seal system.  An external motor seal to keep large debris out, a specially designed internal/external seal that is capable of sealing the motor on its own and finally a Silicon Carbide Face Shaft Seal that is the main seal.  This offers a large safety margin to prevent water leaks into the motor or oil out.  We use the same silicon carbide in all our motor whether they are Electric or Hydraulic.

All of our thrusters are very efficient and are proven models that have a solid track record.  All motors are streamlined and limit flow blockage. Innerspace’s Electric Motors are direct drive and do not require an Adapter Shaft, extra Bearings, gears and or a gear box.   Innerspace Thrusters provides the most reliable products currently in the marketplace.