CN2306186Y - Structure of water-guiding element for small ship propulsion system - Google Patents
Structure of water-guiding element for small ship propulsion system Download PDFInfo
- Publication number
- CN2306186Y CN2306186Y CN 97221242 CN97221242U CN2306186Y CN 2306186 Y CN2306186 Y CN 2306186Y CN 97221242 CN97221242 CN 97221242 CN 97221242 U CN97221242 U CN 97221242U CN 2306186 Y CN2306186 Y CN 2306186Y
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- Prior art keywords
- runner
- center part
- axle center
- conducting element
- district
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Abstract
The utility model relates to structure of a flow-guiding element for a small ship propulsion system. A small ship is provided with a flow channel which is used for the passage of water flow, an engine, a shaft lever and a propeller. The utility model is characterized in that a shaft center part is provided with front section zones and back section zones; the outer diameters of each of the front section zones are gradually increased from the front side to the back side; the outer diameters of each of the back section zones are gradually reduced from the front side to the back side. Each of the front section zone and each of the back section zone are connected via the parts whose outer diameters are maximum. Therefore, the areas of the sectional planes of the space which is formed between the outer margin of the axle center part and the inner margin of the flow channel is reduced gradually from the front end of the front section zone to the back end of the back section part of the axle center part. Therefore, the water flow which flows across the place is accelerated continuously.
Description
The utility model is relevant with the propulsion system of spitkit, is meant a kind of conducting element structure that improves its thrust power that has when cooperating this propulsion system to use especially.
(impeller) compresses current by the general using screw propeller, and the spitkit (as the Wave Race ship) that advances to promote this hull of the outer antagonistic force that is produced of its ejection hull of mat, its propulsion system (seeing also shown in Figure 1) consists predominantly of: an engine 12, be located on the hull 10; One axostylus axostyle 13 is driven by this engine 12 with its front end, the rear end then extends in the set runner 11 in these hull 10 inside; One screw propeller 14 is fixedly arranged on this axostylus axostyle 13 rear ends; One conducting element 15 is located among this runner 11 and is positioned at this screw propeller 14 rears, and it has barrel-contoured always axle center part 151 and is located at most forniciform water conservancy diversion leaves 152 on this axle center part periphery.
To drive this propeller 14 via this axostylus axostyle 13 after this engine 12 starts rotates rapidly, and the current in this runner 11 are compressed, and make its this conducting element 15 of flowing through backward other, make the guiding that is subjected to this water conservancy diversion leaf 152 respectively and the former current that are the eddy current state are guided generally along a straight line direction that is parallel to these runner 11 bearing of trends and advance, then, discharge fast by these runner 11 its nozzles 111 that are positioned at hull 10 rears, advance to promote this hull 10 by its antagonistic force.
General screw propeller manufacturing person is for promoting its power that advances in order to the promotion hull of this propulsion system, therefore all be made as the shape of this nozzle 111 big with respect to the front inner diameter of hull 10, and the little funnel-form of rear end internal diameter, by phasing down the long-pending mode of its inner section, the current at this place obtain to quicken so that flow through, and and then increase it to these hull 10 formed antagonistic forces.According to Bai Nuli equation (THE BERNOULLI EQUATION), aforementioned feasible with the true genus of the mode of promoting water velocity by reduction nozzle 111 in-to-in sectional areas, and also it also applies on the Wave Race ship widely.
Yet in the utilization of reality, this nozzle 111 still is severely limited in design; That is work as the designer and attempt to make current in extremely short runner, can obtain quite good acceleration effect rapidly, and with this nozzle 111 design the utmost point in short-term, with the current at this place that flows through can be impacted on the inwall of this nozzle 111 intensely, though and with its flow velocity of effective lifting.Be designed to be longer and work as this nozzle 111, when the current at this place can obtain long pick-up time so that flow through, then the length owing to hull 10 also must extend thereupon, and therefore, the hull 10 behind this lengthening will seriously lower its flexibility ratio when mobile and handling on the water surface.
Main purpose of the present utility model promptly is to provide a kind of conducting element structure of spitkit propulsion system, and it has under the condition that needn't promote its nozzle or flow channel length, can make the effect of the water velocity acquisition enhancement at this place that flows through.
An of the present utility model purpose is to provide a kind of conducting element structure of spitkit propulsion system, and it has the stroke that the prolongation current are quickened effectively in runner, so that promote the effect of the outer flow velocity of its ejection hull.
For reaching aforesaid purpose, the utility model mainly includes: be located at the runner on this spitkit predetermined position, the predetermined position, an axostylus axostyle that one engine is located at these boats and ships accepted the driving of this engine terminally then extends in this runner, a screw propeller is fixedly arranged on this axostylus axostyle end, a conducting element with its front end and is fixedly arranged among this runner and is positioned at this rear propeller, and has an axle center part and be located at several water conservancy diversion leaves on this axle center part periphery; This runner front end extends to this bottom of ship and forms a water inlet, and its rear end then extends to the rear of boats and ships and forms a nozzle, and has a position, stage casing that is straight tube-like; It is characterized in that, the axle center part of this conducting element has a leading portion district and a back segment district, this leading portion district is made as from front to back that its external diameter increases gradually, this back segment district then is made as by preceding its external diameter then and reduces gradually, and respectively this forward and backward section is that position with its external diameter maximum is connected, and this water conservancy diversion leaf is located on the periphery in this leading portion district; By this, make the interior intermarginal annulus that the stream that can supply water passes through that forms of this axle center part outer rim and this runner, the leading portion district front end of this axle center part is so that between the rear end in this back segment district, its sectional area is to be to reduce shape from front to back gradually certainly; Respectively the leading portion district of this axle center part is coniform; Wherein respectively this water conservancy diversion leaf is to be shaped on the periphery of this axle center part with its inboard respectively, and its outside then is connected with the inner edge of this runner; This conducting element has a ring frame portion, and this ring frame portion is the straight tube-like of tool pre-determined inner diameter, and is the part at its position, stage casing in this runner, and its inwall is connected with the outside of this water conservancy diversion leaf respectively; Wherein this ring frame portion is outside the leading portion district corresponding to this axle center part, and has the length identical with this leading portion district substantially.
Now lift a preferred embodiment of the present utility model, and conjunction with figs. be described in further detail as follows, wherein:
Fig. 1 is a scheme drawing of commonly using Wave Race ship propulsion system.
Fig. 2 is the cross-sectional schematic of the utility model first preferred embodiment.
Fig. 3 is the cross-sectional schematic of the utility model second preferred embodiment.
Fig. 4 has the utility model one preferred embodiment and commonly uses in the runner of conducting element in use for current, its flow locations with and the comparison diagram of speed.
See also Fig. 2 and Fig. 3, spitkit propulsion system of the present utility model is that collocation one runner 40 is to be located at jointly in the hull (not shown) in use.
One downward opening water inlet 41 is formed on the bottom that the front end of this runner 40 extends downward this hull, its rear end extends to the rear of this hull and forms opening funnel-form nozzle 43 backwards, and the position, stage casing 42 between between front and back ends then is the straight tube-like of the suitable internal diameter of tool.This propulsion system includes: an engine (not shown) is located at this hull interior; One axostylus axostyle 30 is driven by this engine with its front end, the rear end then extends within this position, runner stage casing 42; One screw propeller 32 is fixed in this axostylus axostyle 30 rear ends; One conducting element (stator) 60 is located among this runner 40 and corresponding to its position, stage casing 42 and this nozzle 43 inside, and can be discharged by these nozzle 43 places swimmingly in order to the guiding current.
This conducting element 60 has an axle center part 62 and is located on several forniciform water conservancy diversion leaves 64 on its periphery.
This hull is immersed in water, make current enter these runner 40 backs and start this engine, making it drive this screw propeller 32 via this axostylus axostyle 30 rotates rapidly, to compress the current in this runner 40, and after this its flow direction of conducting element 60 corrections of flowing through after forcing it by forward direction, spray hastily outside this hull by these nozzle 43 places again, make these current produce an antagonistic force by this and promote it and advance with respect to this hull.
The axle center part of this conducting element 60 is to have a leading portion district 621 and a back segment district 622, and its shape is characterised in that:
One, just it is 42 inside, position, stage casing of straight tube-like corresponding to this runner 40 in this leading portion district 621, and be to be made as external diameter by preceding then increase gradually coniform, and be different from the straight-tube shape of commonly using, and the sectional area that formation is flowed the annular space that passes through in order to water supply between its periphery and this runner 40 inwalls is then reduced gradually by preceding.
Two, these 622 proper nozzle 43 inside, back segment district corresponding to these runner 40 back segments, its outer margin contour by preceding then be to extend substantially along a circular curve, and its external diameter is reduced gradually and be coniform near bullet type, formed annular space between itself and this nozzle 43 inwalls also is by the preceding shape that then reduces gradually.
Three, respectively these 621,622 its connections, front and rear sections district are the positions that are respectively its external diameter maximum, by this, make these runner 40 inwalls and this axle center part 62 outer intermarginal formed annular spaces, it is progressively successively decreased to the sectional area these nozzle 43 rearmost ends foremost lenitively by the position, stage casing.
Please cooperate and consult Fig. 4, S wherein is when utilization has conducting element 60 of the present utility model in the expression runner 40, the change curve of its water flow inside speed; When using the conducting element 60 of traditional type in S ' the expression runner 40, its in-to-in water velocity change curve; And V
2, V
2' then be respectively its end speed corresponding to nozzle 43 ends.After respectively this runner 40 is used with conducting element 60, when being subjected to these screw propeller 32 promotions, current begin to the front end place of this conducting element 60 backward, the flow velocity of these current promptly can be accelerated gradually, and in the utility model its stroke that continues to be quickened of these current, for from the A of front end place at this leading portion district 621 respectively and 42 places, position, stage casing till the rear end B of back segment district 622 and nozzle 43, obviously as seen, its stroke that continues to be quickened of these current is quite long, and Yi Bainuli theory and Acceleration Formula: V
2 2=V
1 2+ 2as; V
2End speed V when going out hull for current
1Initial velocity a when entering position, runner stage casing for current is that the acceleration/accel s that screw propeller is given current is the stroke that current are quickened
As seen, at initial velocity V
1Under the identical situation, using has this conducting element 60 in runner 40 wherein, and its in-to-in current will be owing to being accelerated the stroke lengthening, and the peak flow rate (PFR) V when making it flow to this nozzle 43 end B
2, only can just be quickened formed peak flow rate (PFR) V in nozzle 43 places compared to commonly using conducting element
2＇, obvious the utility model the person of taking off to have more good acceleration effect to current.
What must indicate especially is, even in traditional Flow guiding structure, do not change the shape of this conducting element 60, and only the internal diameter of these nozzle 43 ends is dwindled, it no doubt also can reach the effect of these runner 40 sectional areas of reduction, but in the utilization of reality, in quite short distance, reduce the internal diameter of this nozzle 43 fast, will be owing to its inwall is too precipitous, and cause a large amount of impulses of current situation thereon, and impulse is in the current of these nozzle 43 inwalls, therefore again will be and loss its discharge speed and energy in this hull outside backward, thereby make its effect that can advance in order to the promotion hull on the contrary less than design of the present utility model.
In addition, this conducting element 60 in the utility model is in the utilization of reality, be to make it be located at a ring frame 66 inside, these ring frame 66 main purposes that are provided with are to use so that the axle center part 62 of this conducting element 60 can be fixed on these runner 40 in-to-in shaft core positions, therefore, this ring frame 66 is set as the some of this runner 40 mostly on practice, even also it is with this position, runner stage casing 42 of formation and in order to fix the function of this conducting element 60.And, respectively the medial and lateral of this water conservancy diversion leaf 64 are in one-body molded mode, on the inner edge of the outer rim that is connected to cooresponding respectively this axle center part leading portion district 621 and ring frame 66, use the position of fixing this conducting element 60, make by compression current simultaneously in by this axle center part leading portion district 621 outer rims the time, its current that are the eddy current shape can be given correcting.
Claims (5)
1. the conducting element of a spitkit propulsion system is constructed, this propulsion system consists predominantly of: be located at the runner on this spitkit predetermined position, the predetermined position, an axostylus axostyle that one engine is located at these boats and ships accepted the driving of this engine terminally then extends in this runner, a screw propeller is fixedly arranged on this axostylus axostyle end, a conducting element with its front end and is fixedly arranged among this runner and is positioned at this rear propeller, and has an axle center part and be located at several water conservancy diversion leaves on this axle center part periphery; This runner front end extends to this bottom of ship and forms a water inlet, and its rear end then extends to the rear of boats and ships and forms a nozzle, and has a position, stage casing that is straight tube-like;
It is characterized in that:
The axle center part of this conducting element has a leading portion district and a back segment district, this leading portion district is made as from front to back that its external diameter increases gradually, this back segment district then is made as by preceding its external diameter then and reduces gradually, and respectively this forward and backward section is that position with its external diameter maximum is connected, and this water conservancy diversion leaf is located on the periphery in this leading portion district; By this, make the interior intermarginal annulus that the stream that can supply water passes through that forms of this axle center part outer rim and this runner, the leading portion district front end of this axle center part is so that between the rear end in this back segment district, its sectional area is to be to reduce shape from front to back gradually certainly.
2. by the conducting element structure of the described spitkit propulsion system of claim 1, it is characterized in that wherein respectively the leading portion district of this axle center part is coniform.
3. by the conducting element structure of the described spitkit propulsion system of claim 1, it is characterized in that wherein respectively this water conservancy diversion leaf is to be shaped on the periphery of this axle center part with its inboard respectively, its outside then is connected with the inner edge of this runner.
4. construct by the conducting element of the described spitkit propulsion system of claim 1, it is characterized in that wherein this conducting element has a ring frame portion, this ring frame portion is the straight tube-like of tool pre-determined inner diameter, and be the part at its position, stage casing in this runner, and its inwall is connected with the outside of this water conservancy diversion leaf respectively.
5. by the conducting element of the described spitkit propulsion system of claim 4 structure, it is characterized in that wherein this ring frame portion is outside the leading portion district corresponding to this axle center part, and has the length identical with this leading portion district substantially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221242 CN2306186Y (en) | 1997-07-16 | 1997-07-16 | Structure of water-guiding element for small ship propulsion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221242 CN2306186Y (en) | 1997-07-16 | 1997-07-16 | Structure of water-guiding element for small ship propulsion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2306186Y true CN2306186Y (en) | 1999-02-03 |
Family
ID=33936695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97221242 Expired - Fee Related CN2306186Y (en) | 1997-07-16 | 1997-07-16 | Structure of water-guiding element for small ship propulsion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2306186Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039839B (en) * | 2004-10-12 | 2011-01-12 | 罗蒂诺有限责任公司 | Electric motor-driven water craft, which is cooled by the surrounding water |
| CN109533255A (en) * | 2018-11-27 | 2019-03-29 | 沈阳丁通用科技研究院 | Liquid propeller and aircraft |
-
1997
- 1997-07-16 CN CN 97221242 patent/CN2306186Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039839B (en) * | 2004-10-12 | 2011-01-12 | 罗蒂诺有限责任公司 | Electric motor-driven water craft, which is cooled by the surrounding water |
| CN109533255A (en) * | 2018-11-27 | 2019-03-29 | 沈阳丁通用科技研究院 | Liquid propeller and aircraft |
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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 |