EP 0930228 A1 19990721 - A device to reverse the srew-propeller thrust, with the functions of hydrodynamic brake and rudder
Title (en)
A device to reverse the srew-propeller thrust, with the functions of hydrodynamic brake and rudder
Title (de)
Gerät zur Umkehrung des Schraubenschubes,mit der Funktion als hydrodynamische Bremse und Ruder zu wirken
Title (fr)
Un dispositif pour invertir la poussé produite par le propulseur naval, avec la fonction de frein hydrodynamique et de gouvernail
Publication
Application
Priority
IT RI960003 A 19961128
Abstract (en)
A device to reverse the screw-propeller thrust, with functions of hydrodynamic brake and rudder. The object of the invention is to provide a simple and efficient device which carries out the reversal of the screw-propeller thrust in a short time, with a hydrodynamic brake and rudder capability. Said device has a couple of main movable components facing each other, with vertical axes of rotation(7,8). One main movable component has two secondary plane vertical surfaces(9,10) one of which is movable(9), the other(10) is fixed. When the two main components make an angle with its vertex on the opposite side of propeller, this shape first makes the device cause the division of the propeller flow followed by the reversal of it. Without the propeller thrust, the device operates like a hydrodynamic brake. When the two main movable components rotate in parallel fashion, they will operate like a rudder. <IMAGE>
IPC 1-7
IPC 8 full level
B63H 25/38 (2006.01)
CPC (source: EP)
B63H 25/382 (2013.01)
Citation (search report)
- [A] GB 195301 A 19230329 - KITCHEN S REVERSING RUDDER COM, et al
- [A] US 1572812 A 19260209 - GUSTAVE REES EDMUND SCOTT
- [A] US 1402080 A 19220103 - ALEXANDER MCNAB
- [A] BE 342225 A
- [A] US 2544642 A 19510313 - ABBOTT FRANK R
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0930228 A1 19990721; IT 1288511 B1 19980922; IT RI960003 A1 19970228
DOCDB simple family (application)
EP 97107688 A 19970510; IT RI960003 A 19961128