VENTURI SYSTEM WITH MULTIPLE GUIDE NOZZLES FOR VESSEL Russian patent published in 2011 - IPC B63H5/16 

FIELD: construction.

SUBSTANCE: first and second elements include two or more spacers in the form of ribs that connect circular elements and cover and separate the structural circular element and two or more circular guide nozzles making an integral whole with them. These elements additionally comprise the upper assembly plate and the lower assembly plate, covering and separating the structural circular element and two or more circular guide nozzles and making an integral whole with them. The system of nozzles has a skeg barrier attached with the possibility of disconnection to any available skeg, including a broken skeg, comprising the upper part and the lower part. The lower part is fixed with the possibility of disconnection to the lower assembly plate of both elements. The system of nozzles has one or more rear safety rings, which comprise the upper plate for fixation of the safety ring and the lower plate for fixation of the safety ring. The upper and lower plates for fixation ensure attachment of one or more safety rings with the possibility of disconnection to the system of nozzles.

EFFECT: invention makes it possible to improve working characteristics of the nozzles system with hydrodynamic profile and to ensure reliability of screw propeller barrier.

31 cl, 21 dwg