A thruster 1 with at least one complex blade where each complex blade consists at least two secondary blades 2, 3 where leading blade 2 is in upper position and following blade 3 is at lower position and relative to leading blade 2 rotated for certain angle 19 in direction counter to rotation direction 18 around thruster 1 central vertical rotation axis. Secondary blades 2, 3 may or may not be connected with a blade connector 4. The blade connector 4 may have a role in preventing turbulence at blade tips. Shape of the blades may be straight with leading and trailing edges tapered. Blades may also be curved. Each blade may be airfoiled with cross sections of various shapes. As thruster is rotated, fluid is deflected firstly by leading blade, than by the following blade. The angle 19 may be between 1 and 90 degrees.
Thruster
2024-08-07
Patent
Electronic Resource
English
THRUSTER-THRUSTER INTERACTION FOR MANOEUVRABILITY EVALUATION
British Library Conference Proceedings | 2006
|BOAT THRUSTER TRANSMISSION UNIT, THRUSTER DRIVE UNIT, THRUSTER ASSEMBLY AND BOAT
European Patent Office | 2018
|