CN1006624B - Turnable propeller device - Google Patents
Turnable propeller deviceInfo
- Publication number
- CN1006624B CN1006624B CN86105134A CN86105134A CN1006624B CN 1006624 B CN1006624 B CN 1006624B CN 86105134 A CN86105134 A CN 86105134A CN 86105134 A CN86105134 A CN 86105134A CN 1006624 B CN1006624 B CN 1006624B
- Authority
- CN
- China
- Prior art keywords
- propelling unit
- well
- nozzle
- propulsion nozzle
- diameter
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Steering Controls (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Toys (AREA)
- Nozzles (AREA)
- Cleaning In General (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
A turnable propeller assembly (3) which can be turned around a vertical axis for steering a vessel comprises an annular propeller nozzle (7) located so that the axial distance (c) from the leading edge (12) of the nozzle to the middle plane of the propeller (9) is between 0.70 and 0.85 times the length (b) of the propeller nozzle (7). To allow the propeller device (3) in any orientation to be locatable inside a well (14) at the bottom (2) of the vessel (1), when not in use, the propeller nozzle (7) lies close to the turning axis (13) of the propeller device (3) and the diameter (D2) of the well (14) is substantially 1.6 times diameter (d) of the propeller. Alternatively, if the propeller device (3) is to be accommodated in a predetermined relative orientation a diameter (D2) of substantially 1.35 times diameter (d) of the propeller (9) is sufficient.
Description
The invention relates to a kind of installation rotating propelling unit aboard ship with annular nozzle.In this device, the propulsive effort of horizontal cardan shaft is transmitted by a vertical axis and a helical wheel, and in order to drive ship, this device can rotate around vertical axis.This propelling unit can be placed on the hull bottom of stern, fore or shipboard.
Rotating propelling unit is particularly conducive to some towboats that must drive well in narrow location.Under the situation of low haulage speed, the angle of rake size of towboat should be more bigger, makes effect better.But this makes propelling unit sizable shortcoming that becomes, and propelling unit is also stretched very deeply down alow, so that ship can not be driven at shoal.And when carrying out the installation or removal propelling unit to the shaft bottom above ship, the propelling unit that perhaps for example drives in shallow water can be lifted and put into the end during well, and the propelling unit that this class is big locates to need a very large well alow.
The thruster of a kind of well-known increase propelling unit when low cruise will insert an annular nozzle around propelling unit.In this case, angle of rake diameter may slightly reduce.But in any case, propulsion nozzle is a big object, from and bring problems.In rotating propelling unit, propelling unit reaches around its nozzle and should be able to rotate fully freely on every side down alow.When the space that requires to rotate is big, just the problem of bringing was particularly used two same propelling units relative with hull hour, as towboat.Nozzle also increases the moment of rotating propelling unit, and the moment size depends on that nozzle leaves the distance at the vertical rotation center of propelling unit (nozzle is far away more from the vertical rotation center, and moment is just big more).
Purpose of the present invention will obtain a kind of later-model propelling unit that does not have above-mentioned shortcoming.Characteristics of the present invention are: place annular propulsion nozzle to such an extent that to make the nozzle leading edge be the axial length of 0.70-0.85X propulsion nozzle to the axial distance of the propulsion nozzle of propelling unit longitudinal plane of symmetry.
Therefore propulsion nozzle almost completely is positioned at the turning cylinder of angle of rake front portion or quite close propelling unit.This has just produced an important result: the required exceptional space of propulsion nozzle is significantly less than the space of common unit.This propelling unit with propulsion nozzle can be installed in the well that forms alow, and the sizableness of well is in the propelling unit that does not have propulsion nozzle.On the other hand, need the little device in space to have this advantage, promptly even can bigger propelling unit be installed on the canoe, so that obtain bigger thrust.
The propulsion nozzle of placing according to the present invention also makes rotating propelling unit obtain great advantage, and promptly the distance of putting from the vertical rotation axle to nozzle center is short.Therefore, rotate the needed moment of propelling unit significantly less than common propelling unit.So also can select lighter steer, thereby reduce manufacturing cost significantly.
Method by the installation propulsion nozzle that proposes according to the present invention can also obtain some significant advantages: one of them is, when the trailing edge that propelling unit placed near nozzle, can lay down it at an easy rate.Also can be firmly fastened to nozzle on propelling unit, can reduce the gap between nozzle and the propelling unit thus.So also improved angle of rake efficient.
Favourable application according to the present invention, the leading edge that is inserted in the propulsion nozzle in the rotatable propelling unit are basically on the line of centers of vertical axis, or on the turning cylinder of propelling unit, or near the line of centers of turning cylinder.In the actual measurement of carrying out, pointed out that when being installed on the propelling unit, in transverse flow, it is zero no better than that it drives moment already to angle of rake nozzle.In other words, propulsion nozzle has placed optimization point.Therefore the structure of steer is selected lightly as far as possible.
According to another favourable application of the present invention, be inserted in distance between the leading edge of the spray nozzle device in the rotatable propelling unit and its trailing edge, or the length of propulsion nozzle is essentially propeller diameter half.This size also is equivalent to the size of above-mentioned optimum structure substantially.Yet,, can increase the thrust of nozzle by extended jet nozzle length if ship is to be used for low cruise basically.In fact, nozzle length can be the angle of rake diameter of 0.6-0.7X.When the distance from the leading edge of nozzle to the propeller blade position was the 0.70-0.85X nozzle length, although prolong nozzle length, the needed space of propelling unit can not increase.This does not need to change the size of steering device, does not increase because drive moment.Therefore, might be inserted into the long nozzle of a special use in the common propelling unit, the main dimension of propelling unit can not changed according to the present invention.
In the time will lifting the propelling unit that rotates in the well that is installed to hull bottom, the size of well can be determined as follows according to additional application: propulsion nozzle will be installed near the turning cylinder of propelling unit, makes the diameter of well enough, is essentially the 1.6X propeller diameter.This size is equivalent to the size of well basically, is used to not have the rotatable propelling unit of nozzle.If propelling unit is not rotated in well, the line of centers of well can be from the turning cylinder displacement of propelling unit so.So according to structure of the present invention, the diameter of well can be the 1.35X propeller diameter.
With reference now to accompanying drawing, narrate the present invention with example, wherein:
Fig. 1 represents to have the rotating propelling unit of common propulsion nozzle.
Fig. 2 and Fig. 1 are suitable, and expression has the rotating propelling unit of nozzle of the present invention.
Fig. 1 represents to be installed to the end (2) of ship (1) and locates the interior rotatable propelling unit (3) of well (14).Vertical axis drives the horizontal cardan shaft that is connected to propelling unit (9) through helical wheel (6).Around propelling unit, insert the propulsion nozzle (7) on an inclined-plane, make the tip (11) of propelling unit (9) blade (10) approximately be positioned at the mid point of propulsion nozzle (7).So arm of force a of the driving moment that causes by this propulsion nozzle
1Be quite long.Need very big space because in this structure, rotate the company's of pushing away nozzle, so the diameter D of well (14) is located at the end (2) of ship (1)
1Be big.Because therefore these shortcomings adopt the structure shown in Figure 1 of ordinary skill seldom to use.
Fig. 2 is the propelling unit after according to the present invention Fig. 1 being made amendment.In this case, insert after the propulsion nozzle (7), the front edge from the centre plane of the blade (10) of propelling unit (9) to propulsion nozzle (7) or the distance C of leading edge (12) depend on the length b of nozzle (7), i.e. C=0.70-0.85 * b.So the front edge of propulsion nozzle or leading edge (12) be positioned at propelling unit pivot center (13) near.By suitable design propulsion nozzle (7), just can (C=0.70-0.85 * b) selectes the mutual alignment of propelling unit (9) and nozzle (7) by aforesaid.In this structure, the thrust that is produced by propulsion nozzle (7) will can not have substantial degradation.The maximum thrust of propulsion nozzle (7) is reached by this structure, and wherein the distance C from the centre plane of the blade (10) of propelling unit (9) to leading edge (12) is approximately 0.7b, and b is the length of propulsion nozzle (7).Propelling unit (9) install than the nearer situation of this distance 0.7 * b under, the performance of propelling unit does not improve basically.When above-mentioned distance C=0.85b (b is propulsion nozzle (a 7) length), the thrust that is produced by propulsion nozzle (7) is≤10% * maximum thrust value.Therefore, 90% the device that thrust is lower than the maximum thrust value is unacceptable technically, and the manufacturing of this device also is uneconomic.
In this structure, the distance between the center-point of propulsion nozzle and its pivot center (13) is basically less than the respective distance of Fig. 1, and is quite little thereby driving power also keeps.Propulsion nozzle does not increase the diameter that ship (1) lower curtate (2) is located well (14), because the trailing edge of nozzle (7) or trailing edge (8) are substantially on the horizontal surface of as shown in Figure 2 propeller boss body.In this embodiment, the diameter D of well (14)
2Be approximately the diameter d of 1.6 * propelling unit (a).In the present embodiment, except the position of propulsion nozzle (7), also be extremely favourable to the size of determining the propulsion nozzle shape.Point out that in the actual measurement of carrying out at the best of times, the length b of propulsion nozzle is approximately half of propelling unit (9) diameter.According to structure of the present invention, propulsion nozzle (7) is firmly fastened to more on the framework of propeller system (3), make the gap between the tip (11) of propulsion nozzle (7) and propeller blade can be less than the gap in Fig. 1 structure.
Obviously, for any professional in the present technique field, can in the scope of the claim of following proposition, carry out various changes to the present invention.As mentioned above, essence of the present invention is the mode of a kind of so well-known propulsion nozzle with a kind of novelty is installed on a kind of so well-known propelling unit, thereby obtains many unexpected advantages and improvement.
Claims (5)
1, a kind of rotating propelling unit (3) that is installed on the ship (1) with ring-type propulsion nozzle (7), in this device, the propulsive effort of horizontal cardan shaft (4) is transmitted by vertical axis (5) and angular gear (6), in order to drive ship, this device can rotate around a vertical axis, it is characterized in that: install ring-type propulsion nozzle (7) with such method, make propulsion nozzle axial distance C the axial length b of 0.70-0.85 * propulsion nozzle (7) from the leading edge (12) of nozzle (7) to the impeller centre plane that pushes away connected device (9).
2, propelling unit according to claim 1, it is further characterized in that: the leading edge (12) of propulsion nozzle (7) that is inserted into propelling unit (3) is basically on the line of centers (13) of vertical axis (5), or on the turning cylinder of propelling unit, or near the line of centers of turning cylinder.
3, propelling unit according to claim 1 and 2, it is further characterized in that: be installed in the distance between the trailing edge (8) of leading edge (12) of the propulsion nozzle (7) on the rotatable propelling unit (3), perhaps the length of propulsion nozzle is half of propelling unit (9) diameter (d) basically.
4, according to claim 1,2 described propelling units (3), the well (14) that its installation site and the end (2) of ship (1) are located is relevant, can make when propelling unit (3) time spent not, propelling unit (3) can be raised puts into well (14), it is very near to it is characterized in that propulsion nozzle (7) is inserted into from the pivot center that pushes away nearly device (3) (13), make enough diameters (D2) of well (14) be approximately the diameter (d) of 1.6 * propelling unit (9), if do not rotate in the time of perhaps in propelling unit (3) is raised the well of packing into (14), then enough diameters (D2) of well (14) are approximately the diameter (d) of 1.35 * propelling unit (9).
5, propelling unit according to claim 3 (3), the well (14) that its installation site and the end (2) of ship (1) are located is relevant, so that when propelling unit (3) time spent not, propelling unit (3) can be raised puts into well (14), in, it is very near to it is characterized in that propulsion nozzle (7) is inserted into from the pivot center that pushes away nearly device (3) (13), make enough diameters (D2) of well (14) be approximately the diameter (d) that 1.6X advances (9), if do not rotate in the time of in propelling unit (3) is raised the well of packing into (14), then enough diameters (D2) of well (14) are approximately the diameter (d) of 1.35 * propelling unit (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI853173A FI75775C (en) | 1985-08-19 | 1985-08-19 | Rotatable propeller assembly. |
| FI853173 | 1985-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86105134A CN86105134A (en) | 1987-02-18 |
| CN1006624B true CN1006624B (en) | 1990-01-31 |
Family
ID=8521237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86105134A Expired CN1006624B (en) | 1985-08-19 | 1986-08-09 | Turnable propeller device |
Country Status (7)
| Country | Link |
|---|---|
| CN (1) | CN1006624B (en) |
| DE (1) | DE3626568A1 (en) |
| FI (1) | FI75775C (en) |
| GB (1) | GB2179312B (en) |
| NL (1) | NL8601957A (en) |
| NO (1) | NO863284L (en) |
| SE (1) | SE466254B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4789302A (en) * | 1987-02-06 | 1988-12-06 | Josip Gruzling | Propeller shroud |
| DE19505179A1 (en) * | 1995-02-16 | 1996-08-22 | Herbert Dipl Ing Luelsdorf | Drive unit for water vessel |
| FI963230A0 (en) | 1996-08-16 | 1996-08-16 | Kvaerner Masa Yards Oy | Propulsionsanordning |
| FI122660B (en) * | 2010-12-30 | 2012-05-15 | Waertsilae Finland Oy | Retractable steering propeller unit for a watercraft |
| JP6097705B2 (en) * | 2014-01-10 | 2017-03-15 | 信吉 森元 | How to operate a ship equipped with a main propeller and an additional propeller |
| CN104828228A (en) * | 2015-05-12 | 2015-08-12 | 广西金达造船有限公司 | Flow guide pipe of trawler |
| CN107472493A (en) * | 2017-08-23 | 2017-12-15 | 北京臻迪科技股份有限公司 | Propeller flow passage structure, propeller and submarine navigation device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB443362A (en) * | 1933-07-25 | 1936-02-19 | Ludwig Kort | Improvements in a combined device of a ship's propeller enclosed by a nozzle |
| GB873851A (en) * | 1957-08-07 | 1961-07-26 | Pierre Mercier | Apparatus for improving the performance of stream-lined bodies propelled in a fluid |
| GB1197850A (en) * | 1968-12-03 | 1970-07-08 | Satterthwaite James G | Peripheral Journal Propeller Drive |
| JPS5131489A (en) * | 1974-09-12 | 1976-03-17 | Akashi Funegata Kenkyusho Kk | Dakuto puropera |
| DE2655667C3 (en) * | 1976-12-08 | 1980-09-25 | Schottel-Werft Josef Becker Gmbh & Co Kg, 5401 Spay | Watercraft |
| GB1600994A (en) * | 1978-05-24 | 1981-10-21 | Lips Bv | Ship propellor ducts |
| EP0035600A1 (en) * | 1980-02-27 | 1981-09-16 | Machinefabriek en Reparatiebedrijf Lips-Keller B.V. | A device for steering a ship |
| FI65589C (en) * | 1983-02-03 | 1984-06-11 | Hollming Yhtymae Oy | PROPELLERANORDNING FOER ETT FARTYG |
| EP0159144B1 (en) * | 1984-02-27 | 1989-06-07 | Niigata Engineering Co., Ltd. | Azimuth thruster for use in ships |
-
1985
- 1985-08-19 FI FI853173A patent/FI75775C/en not_active IP Right Cessation
-
1986
- 1986-07-18 GB GB08617643A patent/GB2179312B/en not_active Expired
- 1986-07-30 NL NL8601957A patent/NL8601957A/en active Search and Examination
- 1986-08-06 DE DE19863626568 patent/DE3626568A1/en not_active Ceased
- 1986-08-09 CN CN86105134A patent/CN1006624B/en not_active Expired
- 1986-08-14 NO NO863284A patent/NO863284L/en unknown
- 1986-08-18 SE SE8603445A patent/SE466254B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB8617643D0 (en) | 1986-08-28 |
| FI75775C (en) | 1988-08-08 |
| SE8603445L (en) | 1987-02-20 |
| GB2179312A (en) | 1987-03-04 |
| SE8603445D0 (en) | 1986-08-18 |
| NO863284D0 (en) | 1986-08-14 |
| SE466254B (en) | 1992-01-20 |
| FI853173L (en) | 1987-02-20 |
| CN86105134A (en) | 1987-02-18 |
| NL8601957A (en) | 1987-03-16 |
| NO863284L (en) | 1987-02-20 |
| DE3626568A1 (en) | 1987-02-19 |
| FI853173A0 (en) | 1985-08-19 |
| GB2179312B (en) | 1989-02-01 |
| FI75775B (en) | 1988-04-29 |
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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 | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |