JPS6133794U - Underwater noise reduction device for ships - Google Patents
Underwater noise reduction device for shipsInfo
- Publication number
- JPS6133794U JPS6133794U JP11890984U JP11890984U JPS6133794U JP S6133794 U JPS6133794 U JP S6133794U JP 11890984 U JP11890984 U JP 11890984U JP 11890984 U JP11890984 U JP 11890984U JP S6133794 U JPS6133794 U JP S6133794U
- Authority
- JP
- Japan
- Prior art keywords
- reduction device
- noise reduction
- underwater noise
- ship
- utility
- 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
- Prevention Of Electric Corrosion (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示す側面図、第２図はプロ
ペラ周辺に発生するキャビテーションを説明するための
図である。
２・・・船底、３・・・プロペラシャフト、４・・・シ
ャフトブラケット、６，９・・・噴出口、７・！・ボス
、８・・・フィン。FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a diagram for explaining cavitation that occurs around a propeller. 2...bottom, 3...propeller shaft, 4...shaft bracket, 6,9...spout, 7.!・Boss, 8...Finn.
Claims (1)
シャフトを支持した船舶において、前記シャフトブラ
ケットのボスに複数のフィンを放射状に突設し、この各
フィンに空気を吹出す多数の噴出口を形成したことを特
徴とする−船舶の水中雑− 音低減装置。 （２）実用新案登録請求の範囲第１項において、前記各
フィンは、断面形状が流線形に形放されていることを特
徴とする船舶の水中雑音低減装置。 ・（３）実用新案登録請求の範囲第１項または第２項に
おいて、前記噴出口は、前記フィンの全面に設けられて
いることを特徴とする船舶の水中雑音低減装置。 （４）実用新案登録請求の範囲第１項ないし第３項のい
ずれかにおいて、前記シャフトブラケットの後端縁に沿
って多数の噴出口を形成したことを特徴とする船舶の水
中雑音低減装置。[Scope of claims for utility model registration] (1) A propeller attached to the bottom of the ship via a shaft bracket,
A ship supporting a shaft, characterized in that a plurality of fins are provided radially protruding from the boss of the shaft bracket, and each fin is formed with a number of outlets for blowing out air - Underwater noise of a ship - Reduction device. (2) Utility Model Registration The underwater noise reduction device for a ship according to claim 1, wherein each of the fins has a streamlined cross-sectional shape. (3) Utility Model Registration The underwater noise reduction device for a ship according to claim 1 or 2, characterized in that the spout is provided on the entire surface of the fin. (4) Utility Model Registration The underwater noise reduction device for a ship according to any one of claims 1 to 3, characterized in that a large number of jet ports are formed along the rear edge of the shaft bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11890984U JPS6133794U (en) | 1984-07-31 | 1984-07-31 | Underwater noise reduction device for ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11890984U JPS6133794U (en) | 1984-07-31 | 1984-07-31 | Underwater noise reduction device for ships |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6133794U true JPS6133794U (en) | 1986-03-01 |
Family
ID=30677786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11890984U Pending JPS6133794U (en) | 1984-07-31 | 1984-07-31 | Underwater noise reduction device for ships |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6133794U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383342U (en) * | 1986-11-20 | 1988-06-01 | ||
| JPH04115998U (en) * | 1991-03-29 | 1992-10-15 | 川崎重工業株式会社 | Overhang bearing structure for propulsion shaft of high-speed ship |
| DE102019116553A1 (en) * | 2019-06-18 | 2020-12-24 | Promarin Propeller Und Marinetechnik Gmbh | Drive for a watercraft |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747295A (en) * | 1980-09-05 | 1982-03-18 | Mitsui Eng & Shipbuild Co Ltd | Preventive device for cavitation erosion of propeller |
-
1984
- 1984-07-31 JP JP11890984U patent/JPS6133794U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747295A (en) * | 1980-09-05 | 1982-03-18 | Mitsui Eng & Shipbuild Co Ltd | Preventive device for cavitation erosion of propeller |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383342U (en) * | 1986-11-20 | 1988-06-01 | ||
| JPH04115998U (en) * | 1991-03-29 | 1992-10-15 | 川崎重工業株式会社 | Overhang bearing structure for propulsion shaft of high-speed ship |
| DE102019116553A1 (en) * | 2019-06-18 | 2020-12-24 | Promarin Propeller Und Marinetechnik Gmbh | Drive for a watercraft |
| DE102019116553B4 (en) * | 2019-06-18 | 2021-01-07 | Promarin Propeller Und Marinetechnik Gmbh | Drive for a watercraft |
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