CN2306182Y - Shallow water vessel with dolphin-like shape - Google Patents
Shallow water vessel with dolphin-like shape Download PDFInfo
- Publication number
- CN2306182Y CN2306182Y CN96224121U CN96224121U CN2306182Y CN 2306182 Y CN2306182 Y CN 2306182Y CN 96224121 U CN96224121 U CN 96224121U CN 96224121 U CN96224121 U CN 96224121U CN 2306182 Y CN2306182 Y CN 2306182Y
- Authority
- CN
- China
- Prior art keywords
- hull
- dolphin
- propeller
- stern
- ship
- 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.)
- Expired - Fee Related
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Classifications
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- 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
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model provides a ship, mainly comprising a hull and a propeller which is arranged at the tail part of the hull. The hull part of the hull under the waterplane is a similar dolphin body-shaped hull; the hull is provided with a circular arc-shaped head end; when the head end is gradually enlarged to the intermediate section of the hull, the head end is gathered at a stern in streamline form by transition. The stern of the hull is a small hyperbolic radian tunnel body stern; the propeller is installed in the tunnel body and positioned above the baseline of the hull. The utility model has the advantages of small wave-making resistance and vortex flow resistance; moreover, the utility model has the performances of big ship speed and shallow water sailing.
Description
The utility model relates to a kind of boats and ships.
The ship type of existing ship mostly is tack, tip and circle tail, the square tail type, and the wave making resistance of this ship type and eddy resistance are all bigger, are unfavorable for the raising of ship speed.For overcoming this shortcoming, the first whirlpool of a kind of ball nose tail shape ship type had appearred afterwards, its wave making resistance reduces to some extent, but whole ship type structure is still undesirable, and the bulb bowed ship head manufacture and design also more complicated.
The purpose of this utility model provides the shallow draught vessel of another kind dolphin body ship type, improves ship's speed with further reduction drag effects.
The formation of class dolphin body shallow draught vessel of the present utility model comprises hull and is arranged on the propeller of hull afterbody, the following hull section of the waterplane of described hull is divided into class dolphin build hull, such dolphin build hull has the head end of a circular arc type, be amplified to gradually then and be the shallow shape transition of stream behind the hull stage casing again and close at stern, the afterbody of hull is the little radian tunnel of a hyperbolic body afterbody, and described propeller is installed in the little radian tunnel of this hyperbolic body and is positioned on the hull baseline.
From the fluid-mechanics point of view analysis, when current and arc surface percussion, can not form the single-piece bounce-back, be difficult to form the spray, incoming flow by disc be scattering into many directions opposite, match the application force of cancelling each other, promptly do not have tangible wave making, reduced " wave making resistance ", in addition, satisfy the streamline contour hull of gradual transition from the stage casing, current are through out-of-date smoothness and the unrest of not wadding a quilt with cotton.Propeller is installed on tail end, can reduce the vortex phenomenon of afterbody greatly, reduces " eddy resistance ".Even two kinds of resistance factors in " three big resistances " during ship speed hinders are descended.Thereby the speed of a ship or plane is improved.In addition, use the large radius-depth ratio propeller of diameter greater than boats and ships self drinking water, and be installed in " the little radian tunnel of the hyperbolic body " of afterbody, propeller is on the hull baseline, air is discharged from and it is remained in the WATER AS FLOW MEDIUM turn round under the operative condition, via the current of propeller in this structural environment smooth without hindrance, can start to greatest extent.
This ship can be made of steel or glass-felt plastic.According to the needs of boats and ships and navigating area, hull is changeable, also can be made into single tail type or two tail type.
The more existing various ship types of wave making resistance and eddy resistance that the utility model has the advantages that have bigger reducing, and reduced drag effects significantly and the speed of a ship or plane is improved, and power thereby also be fully utilized has possessed the performance of the bigger speed of a ship or plane and shallow-water navigation.
Provide embodiment below in conjunction with accompanying drawing.
Fig. 1 structural representation of the present utility model
The birds-eye view of Fig. 2 Fig. 1
The birds-eye view of the waterplane ship shape of Fig. 3 hull
The structure schematic top plan view of the two tail type ship bodies of Fig. 4
Shown in Fig. 1～3, hull 1 is a class dolphin build hull 3 in the part of waterline below 2, have the head end 4 of a circular arc type, then be amplified to gradually be again behind the hull stage casing streamline contour gradually transition close at stern.Large radius-depth ratio propeller 5 is installed in the little radian tunnel of the hyperbolic body 6 of hull tail end, more than the hull baseline and between the tunnel top.Hull can adopt glass-felt plastic to make.Also can be made into two tail types as shown in Figure 4.From Manufactured sample boat measurement is got: principal dimensions 13M * 2M * 0.55M, fully loaded 20 people absorb water 0.22M, 62 horsepowers of single diesel engines, 25.5 kilometers of boat scooters/time.
Claims (2)
1, the shallow draught vessel of a kind dolphin body ship type, comprise hull and the propeller that is arranged on the hull afterbody, the following hull section of waterplane that it is characterized in that described hull is divided into class dolphin bodily form hull, such dolphin build hull has the head end of a circular arc type, be amplified to gradually then be again behind the hull stage casing streamline contour gradually transition close at stern, the afterbody of hull is the little radian tunnel of a hyperbolic body afterbody, and described propeller is installed in the little radian tunnel of this hyperbolic body and is positioned on the hull baseline.
2, the shallow draught vessel of class dolphin body ship type as claimed in claim 1 is characterized in that described propeller is a large radius-depth ratio propeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96224121U CN2306182Y (en) | 1996-11-27 | 1996-11-27 | Shallow water vessel with dolphin-like shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96224121U CN2306182Y (en) | 1996-11-27 | 1996-11-27 | Shallow water vessel with dolphin-like shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2306182Y true CN2306182Y (en) | 1999-02-03 |
Family
ID=33903178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96224121U Expired - Fee Related CN2306182Y (en) | 1996-11-27 | 1996-11-27 | Shallow water vessel with dolphin-like shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2306182Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490872A (en) * | 2011-12-06 | 2012-06-13 | 武汉武船海洋工程船舶设计有限公司 | Deepwater work ocean platform service boat |
-
1996
- 1996-11-27 CN CN96224121U patent/CN2306182Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490872A (en) * | 2011-12-06 | 2012-06-13 | 武汉武船海洋工程船舶设计有限公司 | Deepwater work ocean platform service boat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |