JPS5657590A - Semisubmerged type twin-hull boat - Google Patents
Semisubmerged type twin-hull boatInfo
- Publication number
- JPS5657590A JPS5657590A JP13450479A JP13450479A JPS5657590A JP S5657590 A JPS5657590 A JP S5657590A JP 13450479 A JP13450479 A JP 13450479A JP 13450479 A JP13450479 A JP 13450479A JP S5657590 A JPS5657590 A JP S5657590A
- Authority
- JP
- Japan
- Prior art keywords
- blades
- fin
- propellor
- except
- lower hulls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To reduce a vibrating force generated from a following wake current caused by a fin and a strut and prevent a noise and an obstruction against underwater acoustic instruments by a method wherein a horizontal fin is provided on a side part of a lower hull and a number of blades of a screw propellor except four is disposed.
CONSTITUTION: A twin-hull boat has a pair of submerged left and right lower hulls 1, struts 3 extending upwardly to the upper part of the water surface from respective lower hulls and a cross deck 5 connecting the left and right struts 3 at above the water surface. A substantially horizontal fin 2 is attached to the sides of the lower hulls while screw propellors 4' having a number of blades except four are provided at rear ends of respective lower hulls 1. Accordingly, even if a following wake current caused by the fin 2 and the strut 3 is so distributed as shown by a dotted line, two blades of the propellor blades will never be entered an area of the following wake current simultaneously, therefore, a big vibrating force will never be generated. For further reference, the number of blades of the propellor may be three, five, six or the like if it is a number except four.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13450479A JPS5657590A (en) | 1979-10-18 | 1979-10-18 | Semisubmerged type twin-hull boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13450479A JPS5657590A (en) | 1979-10-18 | 1979-10-18 | Semisubmerged type twin-hull boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5657590A true JPS5657590A (en) | 1981-05-20 |
Family
ID=15129863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13450479A Pending JPS5657590A (en) | 1979-10-18 | 1979-10-18 | Semisubmerged type twin-hull boat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5657590A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7453166B2 (en) | 2006-06-06 | 2008-11-18 | Oceana Energy Company | System for generating electricity from fluid currents |
| US9359991B2 (en) | 2009-10-29 | 2016-06-07 | Oceana Energy Company | Energy conversion systems and methods |
-
1979
- 1979-10-18 JP JP13450479A patent/JPS5657590A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7453166B2 (en) | 2006-06-06 | 2008-11-18 | Oceana Energy Company | System for generating electricity from fluid currents |
| US7604454B2 (en) | 2006-06-06 | 2009-10-20 | Oceana Energy Company | System for generating electricity from fluid currents |
| US9359991B2 (en) | 2009-10-29 | 2016-06-07 | Oceana Energy Company | Energy conversion systems and methods |
| US10060473B2 (en) | 2009-10-29 | 2018-08-28 | Oceana Energy Company | Energy conversion systems and methods |
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