| 摘要 |
PROBLEM TO BE SOLVED: To provide a rudder for ships avoiding a corrosion phenomenon of the rudder due to cavitation generation for use in a high speed ship equipped with a high load propeller, and reducing or lowly maintaining fuel consumption. SOLUTION: A rudder blade 100 has two superimposed rudder blade sections 10, leading edge sections 11, 21 and/or trailing edge sections of which are offset such that the one leading edge section and/or the one trailing edge section is offset port or starboard and the other leading edge section and/or the other trailing edge section is offset starboard or port and that the one leading edge and/or trailing edge section has a port-sided offset surface which projects over the other leading edge section and/or the other trailing edge section and the other leading edge section and/or trailing edge section has a starboard-sided offset surface which projects over the one leading edge section and/or trailing edge section. A flow body 41 configured in such a manner that its dimensions are adapted to the dimensions of the offset surfaces, which covers the offset surfaces and which is configured in the area of each offset surface. COPYRIGHT: (C)2009,JPO&INPIT
|
