| 摘要 |
<p>1495714 Jet propulsion; water inlets O & K ORENSTEIN & KOPPEL AG 5 Dec 1974 [5 Dec 1973] 52726/74 Headings B7V and B7S A hull has an opening 6 communicating with a space inside the hull, e.g. leading to a transverse steering duct, and a second duct 7 leading from a second opening forward of the opening 6 and connecting with the duct 1. Such an arrangement reduces turbulance at the opening 6. In Fig. 3, not shown, the opening leads to a sea water tank (8), The duct 7 can have a curved axis, and a varying cross-section. The openings can have rounded edges. A pressure compensating duct can be associated with the steering duct.</p> |
