CN1056122C - Submerged propeller for high speed semi-glding type ship - Google Patents
Submerged propeller for high speed semi-glding type ship Download PDFInfo
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- CN1056122C CN1056122C CN 94112109 CN94112109A CN1056122C CN 1056122 C CN1056122 C CN 1056122C CN 94112109 CN94112109 CN 94112109 CN 94112109 A CN94112109 A CN 94112109A CN 1056122 C CN1056122 C CN 1056122C
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- propelling unit
- propeller
- cabin
- oars
- oar
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Abstract
The present invention relates to an underwater propelling device for high-speed half-sliding ships. The present invention is characterized in that an engine room of a main machine and propellers of the propelling device are arranged below a bottom baseline, and the outer shell of the engine room forms a streamline shape. The front and the rear end parts of the engine room are respectively provided with a propeller string structure which has at least two propellers arranged in series, and the front and the rear propeller strings are arranged at the same axial line. Besides, the engine room and the outer parts of the front and the rear propeller strings are also provided with a fixedly arranged cylindrical rectification cover, and an output shaft of the main machine positioned in the engine room is directly connected with a propeller shaft of the propelling device. The present invention causes the propelling device to work in the opened water and the uniform flow field and increases the thrusting efficiency. Besides, the present invention has important developing value for the high-speed civil ships and the high-speed military naval vessels.
Description
The invention belongs to the propulsion of ship technology, particularly a kind of submerged propeller that is used for high speed semi-glding type (semi-floating) boats and ships.
Conventional marine propulsion is generally tail propulsion mode (screw propeller is installed in stern), this layout is for the development high-speed ship, be difficult to see significant effect, reason is along with the speed of a ship or plane improves constantly, hull and current move mutually and produce hull afterbody low pressure and vortex separation zone, cause the cavity phenomenon to occur.Screw propeller causes propulsion coefficient to reduce under the cavity operating mode, is difficult to bring into play main engine power and is converted into propulsion coefficient.Countries in the world boats and ships expert has done many effort in order to seek new propelling unit.For example some boats and ships experts of foreign country once studied the propelling unit of employing " shrouded propeller ", " dual rotation propeller ", " hydraulic efficiency jet propulsion system " and various ways such as " supercavitation propelling units ".As China Patent No. is that CN87103246A (November 11 87 year applying date), name are called existing narration in the patent of " propeller device for vessel ", this patent is provided with former and later two screw propellers and is the oar structure that tandem is installed on the same common axis of rotation of its propelling unit, and the outside that has a screw propeller at least is provided with toroidal helical oar conduit, its main frame power is delivered on the prop shaft of basic horizontal shape by a vertical axis and an angle gear.Though above-mentioned technology can be improved the cavity phenomenon, helpful to improving thrust, but its main frame engine room arrangement is the position, back in hull, propelling unit is positioned at stern, vertical axis long period of soaking easy-to-rust in seawater of transferring power, although thereby propulsion coefficient increased, also be difficult to reach the needed speed of a ship or plane requirement of high-speed ship.
The objective of the invention is to design a kind of submerged propeller of semi-glding type ship, make it to bring into play the propelling effect better, and more effectively improve the speed of a ship or plane of boats and ships.
Propulsion of ship efficient is one of key element that influences the speed of a ship or plane.Improve propulsion coefficient except the problem of screw propeller own, also comprise the matching problem of its hull position, place and main frame.Based on the foregoing invention thinking, the end, front and back of submerged propeller of the present invention still respectively is provided with at least more than one screw propeller and is the oar structure that tandem is installed, the oar string was on the same axial line before and after the back was installed, the outside of front and back oar string also is provided with hard-wired tubular fairing, its constructional feature is latent the putting below hull is the base line of the board-like hull bottom of water skiing of screw propeller with main frame cabin and formation propelling unit, the shape of cabin body skin is stream line pattern (its monnolithic case is spindle-type), after being in the main frame process reduction of speed transmission in the cabin, its output shaft can directly connect with angle of rake oar axle (or propeller hub).
Below in conjunction with implementing side concrete structure principle of the present invention is further described.
Fig. 1 is the propelling unit of the present invention following integral structure scheme drawing of installing of baseline alow;
Fig. 2 is the structural representation that is spindle-type (stream line pattern) cabin and screw propeller string;
Fig. 3 is the part-structure scheme drawing of cabin inner chamber;
Fig. 4 is the structural representation of fairing;
Fig. 5 is the scheme drawing that channel cross-section is streamline-shaped;
Fig. 6 is the structural representation of hollow rotary taper propeller hub and blade;
Fig. 7 is provided with 2 (symmetrical expression is arranged) propelling units to form the structural representation that two oars advance under the baseline alow.
Wherein: 1 hull, 2 waterlines, 3 base lines, 4 cabin passages, 5 fairings, 6 cabins, 7 main frames, 8 front propeller strings, 9 after screw strings, 10 water inlets, 11 water outlets, 12 oar axles, 13 hollow rotary taper propeller hubs, the screw propeller string on the 14 taper propeller hubs, 15 gears case, 16 cabin diamond plates, 17 ladder accesses, 18 blades.
With reference to accompanying drawing as can be known, in order to improve propulsion coefficient, also can be in the cabin 6 front and rear part (with the envelope shape) be arranged with hollow rotary taper propeller hub 13 (also being stream line pattern), these former and later two propeller hubs are provided with the screw propeller string 14 that one or more concentrics are installed.
With reference to accompanying drawing as can be known: be provided with passage 4 between the cabin in cabin 6 and the hull, the cross-sectional plane of this passage is stream line pattern (or aerofoil profile) shape.
With reference to accompanying drawing as can be known, fairing 5 can be fixedly mounted on the support of passage 4, and the diameter of the water inlet 10 of fairing can be designed to the diameter greater than water outlet 11.
As can be seen from Figure 1, submersible type cabin 6 of the present invention and propelling unit is positioned at the scope at 3-4.5 station forward from afterbody 0 station that hull is made as 10 stations.
With reference to Fig. 7 as can be known, propelling unit of the present invention baseline alow can be single oar setting for 3 times, also can be two oars and be symmetrical arranged, also can be the above many oars setting of three oars when needing, to form the structure that many oars advance to form the structure that two oars (i.e. two propelling units) advance.
When adopting three oars to be provided with, three propelling units can design the push structure that is installation arranged side by side under the baseline alow, also can design the push structure (accompanying drawing slightly) that is " product " font (triangle) and installs.
The present invention is with cabin and the latent hull bottom baseline below that places of propelling unit, and especially propelling unit is many oar structures, and puts spacious water fairing in outer periphery, the propelling unit screw propeller is in the spacious water uniform incoming flow field works, thereby greatly improve propulsion coefficient.The present invention is when specific design, its main frame can adopt the big high rotating speed automotive gas turbine of volume miniwatt, and after handling through reduction of speed, power is directly passed to screw propeller, the complete noise reduction of main frame noise has that consumption of fuel is few, noise is low, be subjected to advantages such as weather effect is little under the water surface.Bottom of ship of the present invention can be designed to the board-like structure of water skiing, when the propelling unit full speed operation, bottom of ship is partly slided or the gliding type navigation, even make hull break away from surface navigation.When the present invention is applied to civilian military high-speed ship, high speed passenger steamer, the ship of war speed of a ship or plane are brought up to more than 60 joints.
Claims (7)
1, a kind of submerged propeller of semi-glding type ship, respectively be provided with in the end, front and back of propelling unit and contain an above screw propeller at least and be the oar structure that tandem is installed, the oar string was on the same axial line before and after the back was installed, also be provided with hard-wired tubular fairing (5) in the outside of front and back oar string, latent base line (3) below that is the board-like hull bottom of water skiing at hull of putting of screw propeller that it is characterized in that main frame cabin (6) and formation propelling unit, the shape of cabin (6) body skin is stream line pattern, after being in main frame (7) the process reduction of speed transmission in the cabin (6), its output shaft can directly connect with angle of rake oar axle (12).
2, propelling unit according to claim 1, it is characterized in that also can be in the cabin front and rear part of (6) be arranged with hollow rotary taper propeller hub (13), these two propeller hubs are provided with the screw propeller string (14) that one or more concentrics are installed.
3, propelling unit according to claim 1 is characterized in that being provided with passage (4) between the cabin in cabin (6) and the hull, and the cross-sectional plane of this passage is streamline-shaped.
4, propelling unit according to claim 1 it is characterized in that fairing (5) can be fixedly mounted on passage (4) support, and water inlet (10) diameter of fairing (5) can be greater than water outlet (11) diameter.
5, propelling unit according to claim 1 is characterized in that cabin (6) and propelling unit are positioned at the scope at 3-4.5 station forward from afterbody 0 station that hull is made as 10 stations.
6, propelling unit according to claim 1, it is characterized in that this propelling unit can be single oar setting under the baseline (3) alow, also can be two oars and be symmetrical arranged, also can be the above setting of three oars, to form the structure that many oars advance to form the structure that two oars advance.
7, propelling unit according to claim 6, when it is characterized in that adopting three oars to be provided with, three propelling units can design the push structure that is installation arranged side by side under the baseline alow, also can design to be the push structure that " product " font is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94112109 CN1056122C (en) | 1994-04-02 | 1994-04-02 | Submerged propeller for high speed semi-glding type ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94112109 CN1056122C (en) | 1994-04-02 | 1994-04-02 | Submerged propeller for high speed semi-glding type ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1096260A CN1096260A (en) | 1994-12-14 |
| CN1056122C true CN1056122C (en) | 2000-09-06 |
Family
ID=5035913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94112109 Expired - Fee Related CN1056122C (en) | 1994-04-02 | 1994-04-02 | Submerged propeller for high speed semi-glding type ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056122C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071232C (en) * | 1996-04-16 | 2001-09-19 | 周锦宇 | High speed vessel with propellor acting on water surface |
| CN102398671A (en) * | 2011-02-22 | 2012-04-04 | 汪砚秋 | Lift propeller ship |
| CN110450903B (en) * | 2019-07-05 | 2021-04-27 | 哈尔滨工程大学 | Longitudinal flow transition type semi-planing boat |
-
1994
- 1994-04-02 CN CN 94112109 patent/CN1056122C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1096260A (en) | 1994-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 12 of the detailed rules for the implementation of the patent law: 94112109.7 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 94227986.7 utility model patent to be given up, and in the 16 volume of the 36 issue of the new type of communique on the patent right to abandon the announcement. |
|
| 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 |