JPH02129995U - - Google Patents
Info
- Publication number
- JPH02129995U JPH02129995U JP1989039435U JP3943589U JPH02129995U JP H02129995 U JPH02129995 U JP H02129995U JP 1989039435 U JP1989039435 U JP 1989039435U JP 3943589 U JP3943589 U JP 3943589U JP H02129995 U JPH02129995 U JP H02129995U
- Authority
- JP
- Japan
- Prior art keywords
- water line
- propulsion
- ship
- protruding
- outer skin
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 5
- 238000010521 absorption reaction Methods 0.000 claims 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Description
第１図は本考案の−実施例を示す側面図、第２
図は第１図の−に沿つた横断面図、第３図は
第１図の気泡発生機構を示す部分拡大横断面図、
第４図は第３図の−に沿つた水平断面図、第
５図は第１図の気泡発生機構を示す部分拡大側面
図、第６図は第１図の変形例を示す同じく側面図
、第７図、第８図、第９図は第４図の突出板のそ
れぞれ互いに異なる変形例を示す同じく水平断面
図ある。
１…流線、２…外板、３…船体、４…推進器、
５…突出板、６…油圧シリンダー、７…ピストン
、８…配管、９…油圧ポンプ、１０…負圧域、１
１…空気、１２…気泡、１３，１４，１５，１６
…突出板、
Figure 1 is a side view showing an embodiment of the present invention; Figure 2 is a side view showing an embodiment of the present invention;
The figure is a cross-sectional view taken along - in Fig. 1, and Fig. 3 is a partially enlarged cross-sectional view showing the bubble generation mechanism in Fig. 1.
FIG. 4 is a horizontal sectional view taken along - in FIG. 3, FIG. 5 is a partially enlarged side view showing the bubble generation mechanism in FIG. 1, and FIG. 6 is a side view showing a modification of FIG. 1. FIGS. 7, 8, and 9 are horizontal sectional views showing different modifications of the protruding plate shown in FIG. 4, respectively. 1...Streamline, 2...Outer plate, 3...Hull, 4...Propulsion device,
5... Projection plate, 6... Hydraulic cylinder, 7... Piston, 8... Piping, 9... Hydraulic pump, 10... Negative pressure area, 1
1... Air, 12... Bubbles, 13, 14, 15, 16
...protruding plate,
Claims (1)
進器放射雑音と共振させることによりそのエネル
ギを吸収する船舶の推進器放射雑音吸収装置にお
いて、推進器の船首側外板に装着され吃水線の上
下にわたつて適宜長さ延びるとともに上記外板内
側に格納することができる突出体を有し、航走状
態において上記突出体を上記外板内側から突出す
ることにより上記吃水線上から空気を上記吃水線
下に吸込み気泡を発生させることを特徴とする船
舶の推進器放射雑音吸収装置。 In a ship's propulsion noise absorption device, which absorbs the energy of outflowing air bubbles by passing them along streamlines and then resonating with the propulsion noise, a water line is installed on the bow side outer plate of the propulsion device. has a protruding body that extends an appropriate length over and under the water line and can be stored inside the outer skin, and in a cruising state, by protruding the protruding body from the inside of the outer skin, air is drawn from above the water line to the water line. A ship propulsion noise absorption device characterized by generating suction bubbles below the water line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989039435U JPH02129995U (en) | 1989-04-03 | 1989-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989039435U JPH02129995U (en) | 1989-04-03 | 1989-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02129995U true JPH02129995U (en) | 1990-10-26 |
Family
ID=31548343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989039435U Pending JPH02129995U (en) | 1989-04-03 | 1989-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02129995U (en) |
-
1989
- 1989-04-03 JP JP1989039435U patent/JPH02129995U/ja active Pending