Water-jet Propulsion System
 
 
The Water-jet Propulsion System has been developed for the DIEE, Cagliari University, and is intended as a test bed for advanced high-precision position-control techniques for underwater robotic vehicles.

The first prototype (here under trial in the water channel)  has a 2-nozzle configuration, where the final version will use 7 nozzles to allow the control of all the 6-DOF of an underwater vehicle.

 

To produce and control the required thrust, the system uses specially-designed variable-area nozzles.

The area of the nozzle is controlled by a spear valve

To allow very high-speed control of the jet intensity, the spear valve is actuated by a directly-coupled linear electric motor.

 

 
For more information visit the DIEE (Cagliari University) website: http://www.diee.unica.it/~pisano/AUV.html  

Back to main page