EP1336561B1 - Antrieb für Wasserfahrzeuge - Google Patents
Antrieb für Wasserfahrzeuge Download PDFInfo
- Publication number
- EP1336561B1 EP1336561B1 EP03002882A EP03002882A EP1336561B1 EP 1336561 B1 EP1336561 B1 EP 1336561B1 EP 03002882 A EP03002882 A EP 03002882A EP 03002882 A EP03002882 A EP 03002882A EP 1336561 B1 EP1336561 B1 EP 1336561B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- propeller
- profile
- thickness
- shaft
- hull
- 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 - Lifetime
Links
Images
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
- B63H5/125—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
- B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
-
- 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
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
- B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
Definitions
- the present invention relates to a drive device for watercraft that propel the watercraft, but possibly also changing the direction of travel of the watercraft, that is, its control can serve, wherein in connection with the invention in particular to a change of direction of approximately +/- 10 ° in relation to the main direction of travel is thought.
- the drive device has a housing on, the gondola-like with an essentially horizontal longitudinal axis outside the actual watercraft under the Watercraft hull is arranged.
- a drive motor In the underwater case can a drive motor or it can be part of it Drive.
- the drive motor can, for example According to DE 196 48 417 be an electric motor, part of a drive can be, for example according to DE 44 40 738, a transmission, the Drive power from an engine arranged in the watercraft is fed.
- the drive motor or part of the drive is with a drive shaft with at least one drive propeller connected to one end of the case outside of the housing is arranged.
- a shared one if necessary Drive shaft can also on both ends of the housing be led out of this to at least one propeller to be driven at each end of the housing outside it.
- the storage of the underwater housing on the hull of the watercraft serves a shaft with a vertical longitudinal axis, the lower end firmly with the underwater housing and its upper end is connected to the hull of the watercraft.
- the aforementioned shaft between the underwater case and the hull of the watercraft has in Cross section about the shape of a wing around the incoming Resist water as little as possible and laminar, i.e. flows around with the least possible vortex formation to become.
- the present invention is concerned with training of the aforementioned shaft preferably for one in principle all-round swiveling drive for watercraft with a speed range above about 24 Kn in such a way that the Cavitation hazard on the shaft and on at least one propeller is small, pressure fluctuations are kept low and Thrust and torque fluctuations to the smallest extent possible be introduced into the forest.
- Such drives which are arranged in the underwater housing Include electric motor, have a practically unlimited Range of services. You can therefore in ships with high speed requirements such as RoRo ships and ferries are used. The trend is going on with these ships at speeds of 24 Kn and beyond. For these applications result in special requirements for the Design of the propellers and the entire system including inclusion of the shaft between the underwater housing and the hull of the Watercraft.
- the invention results in the use of relatively large radii at the leading edge of the individual profile sections of the housing shaft, and a bumpless flow over a large angle of attack of the profile is ensured. Strong local accelerations and vacuum peaks are reduced. The risk of cavitation decreases. The risk of detachment is reduced by a moderate pressure increase in the direction of the trailing edge of the profile.
- the ratio of the local thickness to the maximum thickness should not be less than in the table according to the invention cited below. A ratio of the maximum thickness to the profile length in the range from 0.23 to 0.30 represents a suitable compromise. The risk of cavitation is reduced without unnecessarily increasing the shaft resistance. Thickness distribution t / tmax: x / L t / tmax 0.05 0.44 0.10 0.62 0.15 0.76 0.20 0.84 0.25 0.91 0.30 0.96
- this deals with the problem of avoiding an additional delay of the Flow through the shaft of the underwater case.
- the propeller in the area of the hub and external cuts is relieved.
- the cuts (0.5 - 0.9 r / R) are at a greater distance from the propeller plane. Due to the greater local stress on these leaf cuts, a delay in the flow there leads to cavitation more quickly.
- the table below according to the further embodiment of the invention shows the minimum distance required according to the invention depending on the propeller diameter. Distance of the propeller planes to the shaft: r / R s / D 0.5 0.20 0.6 0.23 0.7 0.25 0.8 0.27 0.9 0.29 1.0 0.30
Description
Dickenverteilung t/tmax: | |
x/L | t/tmax |
0,05 | 0,44 |
0,10 | 0,62 |
0,15 | 0,76 |
0,20 | 0,84 |
0,25 | 0,91 |
0,30 | 0,96 |
Abstand der Propellerebenen zum Schaft: | |
r/R | s/D |
0,5 | 0,20 |
0,6 | 0,23 |
0,7 | 0,25 |
0,8 | 0,27 |
0,9 | 0,29 |
1,0 | 0,30 |
- tmax
- = die maximale Dicke des Tragflügelprofils, wie es durch den Linienzug 6 gekennzeichnet ist und der Querschnitt des Schaftes 3 ist, dessen Vorderkante und dessen Hinterkante konkav bogenförmig sind,
- t
- = die aktuelle Profildicke des Profils in ausgewählten Bereichen,
- x
- = der Abstand des ausgewählten Bereichs von dem in der Hauptfahrtrichtung vorderen, nasenför migen Ende des Profils,
- L
- = die Gesamtlänge des Profils,
- s
- = der Abstand der Propellerhauptebene P.E. des Spitzenkreises vom ausgewählten Schaftbe reich,
- r
- = der Abstand des ausgewählten Schaftbereichs von der Drehachse des Propellers,
- R
- = der Radius des Propellerspitzenkreises,
- D
- = der Durchmesser des Propellerspitzenkreises.
Claims (2)
- Vorrichtung zum Antrieb eines Wasserfahrzeugs und vorzugsweise auch zur Korrektur der Vortriebsrichtung des Wasserfahrzeugs vorzugsweise im Bereich von etwa +/- 10°, wobei die Antriebsvorrichtung ein Gehäuse aufweist, das gondelartig mit im wesentlichen horizontaler Längsachse außerhalb des Wasserfahrzeugrumpfes unterhalb des Rumpfes angeordnet ist, am einen Ende außerhalb des Gehäuses im umgebenden Wasser drehend einen Propeller, innerhalb des Gehäuses zumindest Teile des Antriebes des Propellers aufweist und durch einen Schaft mit im wesentlichen vertikaler Längsachse mit dem Wasserfahrzeugrumpf verbunden ist, wobei das untere Ende des Schafts fest mit dem gondelartigen Gehäuse, das obere Ende des Schafts vorzugsweise um dessen Längsachse schwenkbar am Wasserfahrzeugrumpf gelagert ist, wobei der Schaft im Querschnitt etwa die Form eines Tragflügels hat, d.h. in der Regelanströmrichtung am vorderen Ende eine abgerundete Nase bildet, nach der die Profildicke zunächst ansteigt, um nach einer maximalen Dicke in einer Endspitze auszulaufen,
dadurch gekennzeichnet, dass beginnend mit der Profilnase die Beziehung zwischen dem Längenverhältnis (x/L) zwischen aktuellem Abstand (x) von der Profilnase und der gesamten Profillänge (L) einerseits und dem Dickenverhältnis (t/tmax) zwischen aktueller Profildicke (t) und maximaler Profildicke (tmax) wie folgt istDickenverteilung t/tmax: x/L t/tmax 0,05 0,44 0,10 0,62 0,15 0,76 0,20 0,84 0,25 0,91 0,30 0,96. - Vorrichtung zum Antrieb eines Wasserfahrzeugs nach Anspruch 1,
dadurch gekennzeichnet, dass die Beziehung zwischen dem Verhältnis (r/R) zwischen aktuellem Propellerdurchmersser (r) und maximalem Propellerdurchmesser (R) einerseits und dem Verhältnis (s/D) zwischen dem Abstand (s) des Propellerspitzenkreises von der vorderen Kante des Schaftes und dem maximalen Durchmesser (D) des Propellers anderseits wie folgt ist.Abstand der Propellerebenen zum Schaft: r/R s/D 0,5 0,20 0,6 0,23 0,7 0,25 0,8 0,27 0,9 0,29 1,0 0,30
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10206530A DE10206530A1 (de) | 2002-02-16 | 2002-02-16 | Antrieb für Wasserfahrzeuge |
DE10206530 | 2002-02-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1336561A1 EP1336561A1 (de) | 2003-08-20 |
EP1336561B1 true EP1336561B1 (de) | 2004-11-10 |
Family
ID=27618736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03002882A Expired - Lifetime EP1336561B1 (de) | 2002-02-16 | 2003-02-08 | Antrieb für Wasserfahrzeuge |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1336561B1 (de) |
AT (1) | ATE281971T1 (de) |
DE (2) | DE10206530A1 (de) |
ES (1) | ES2232791T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033554A1 (de) | 2009-07-16 | 2011-01-20 | Reintjes Gmbh | Propellergondel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5360887B2 (ja) * | 2009-03-25 | 2013-12-04 | 株式会社Ihi | ポッド推進器 |
CN109278969A (zh) * | 2018-10-12 | 2019-01-29 | 邓建军 | 同轴双桨电动喷水推进器 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7306891U (de) * | 1973-02-23 | 1974-07-18 | Voith J Gmbh | Schiffsantrieb mit einem Verstellpropeller |
US4830574A (en) * | 1988-02-29 | 1989-05-16 | United Technologies Corporation | Airfoiled blade |
DE4440738A1 (de) * | 1994-11-15 | 1996-05-23 | Schottel Werft | Schiffsantrieb mit einer Antriebsmaschine im Schiffsrumpf und einem von der Antriebsmaschine angetriebenen Propeller außerhalb des Schiffsrumpfes |
SE506926C2 (sv) * | 1996-06-06 | 1998-03-02 | Kamewa Ab | Marint framdrivnings- och styraggregat |
DE19648417A1 (de) * | 1996-11-22 | 1998-05-28 | Schottel Werft | Schiffsantrieb mit einem Ruderpropeller |
US20010051475A1 (en) * | 1996-11-07 | 2001-12-13 | Reinhold Reuter | Twin-propeller drive for watercraft |
CA2373465C (en) * | 1999-05-11 | 2007-01-02 | Siemens Aktiengesellschaft | Electrical steering propeller having a small installed height |
FI110595B (fi) * | 2000-01-28 | 2003-02-28 | Abb Oy | Järjestely aluksessa, menetelmä tilan käyttämiseksi hyväksi aluksessa sekä propulsioyksikön asennusjärjestely |
DE10062354B4 (de) * | 2000-12-14 | 2007-12-20 | Siemens Ag | Stellantrieb für einen, insbesondere elektrisch angetriebenen, Ruderpropeller eines Seeschiffes |
-
2002
- 2002-02-16 DE DE10206530A patent/DE10206530A1/de not_active Withdrawn
-
2003
- 2003-02-08 ES ES03002882T patent/ES2232791T3/es not_active Expired - Lifetime
- 2003-02-08 EP EP03002882A patent/EP1336561B1/de not_active Expired - Lifetime
- 2003-02-08 DE DE50300138T patent/DE50300138D1/de not_active Expired - Fee Related
- 2003-02-08 AT AT03002882T patent/ATE281971T1/de not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033554A1 (de) | 2009-07-16 | 2011-01-20 | Reintjes Gmbh | Propellergondel |
EP2281743A1 (de) | 2009-07-16 | 2011-02-09 | Reintjes GmbH | Propellergondel |
Also Published As
Publication number | Publication date |
---|---|
DE10206530A1 (de) | 2003-08-28 |
ATE281971T1 (de) | 2004-11-15 |
EP1336561A1 (de) | 2003-08-20 |
DE50300138D1 (de) | 2004-12-16 |
ES2232791T3 (es) | 2005-06-01 |
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