EP0144860A2 - Gouvernail pour bateau comportant une hélice - Google Patents

Gouvernail pour bateau comportant une hélice Download PDF

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Publication number
EP0144860A2
EP0144860A2 EP84114062A EP84114062A EP0144860A2 EP 0144860 A2 EP0144860 A2 EP 0144860A2 EP 84114062 A EP84114062 A EP 84114062A EP 84114062 A EP84114062 A EP 84114062A EP 0144860 A2 EP0144860 A2 EP 0144860A2
Authority
EP
European Patent Office
Prior art keywords
rudder
main
propeller
active
end flap
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.)
Withdrawn
Application number
EP84114062A
Other languages
German (de)
English (en)
Other versions
EP0144860A3 (fr
Inventor
Klaus Dr.-Ing. Kranert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0144860A2 publication Critical patent/EP0144860A2/fr
Publication of EP0144860A3 publication Critical patent/EP0144860A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers

Definitions

  • the invention relates to an active rudder for ships according to the features of the preamble of claim 1.
  • Active rudders have long been known as maneuvering aids for slow-moving ships. They are usually integrated into the main rudder and are fed from the traction network. They have been gradually replaced by the transverse thrusters.
  • idlers which are arranged as counter-propellers behind the main propeller and which make use of the swirl energy from the water jet of the main propeller for thrust generation.
  • the idler could not prevail as it caused a number of problems.
  • Worth mentioning, for example, is the required smoothness, which is achieved with spherical roller bearings. These are problematic in terms of maintenance in lake water. Another difficulty is seen in the fact that the main propeller and stator run close together and penetrating foreign bodies such as ice floes, steel cables, etc. can block both.
  • the object of the invention is to provide an active rudder of the type described in the introduction with which further energy savings for the auxiliary propeller drive can be achieved, course stability can be improved and the main rowing machine can be made smaller and therefore less expensive.
  • the energy-saving active rudder according to the invention is achieved in that the steering gear does not have to be extended for the purpose of traversing on 90 0 rudder angle.
  • the rudder angle and thus the inclination of the additional propeller against the main propeller the negative factors of a propeller inclined flow are largely avoided and the spin of the main propeller is linearized, thereby improving the rudder effect.
  • the maximum rudder angle for example to 60 °, the distance between the main and the additional propeller can be reduced.
  • Fig. 1 there is a main rudder 1 in the flow from the main propeller, shown as parallel arrows S. If the main rudder 1 is turned at a larger angle d to the longitudinal axis of the ship, it is shown that it loses its buoyancy due to boundary layer detachment in area A. , which reduces the rudder effect.
  • the effect of the active rudder just described can be increased if the main rudder 2 is provided with a controllable end flap 4.
  • the same pitch angle ⁇ and a pitch angle ⁇ for the end flap 4 are achieved so that the flow is guided around the rudder 2, so that the break-off point of the flow is shifted to substantially larger pitch angles.
  • the rudder angle ⁇ can become much smaller in order to achieve the same rudder transverse force. The effect is particularly noticeable if the active rudder is attached as a supplementary propeller behind a main propeller to save energy.
  • the energy-saving active rudder can be equipped with a rowing machine that has less than a 90 rudder adjustment, e.g. only 500. This drastically reduces the cost of the steering gear. The distance between the main and additional propellers can also be minimized.
  • the main rudder can be locked and only the end flap can be activated. If the required course correction cannot be eliminated despite the end flap being adjusted to its optimal value, this can be achieved by slightly adjusting the main rudder. This ensures a high rudder efficiency, since the level of the additional propeller is not or only slightly changed.
  • This type of control results in a reduction in resistance, a propulsion / thrust improvement and thus an energy saving.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Toys (AREA)
  • Wind Motors (AREA)
EP84114062A 1983-12-06 1984-11-22 Gouvernail pour bateau comportant une hélice Withdrawn EP0144860A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3344017 1983-12-06
DE19833344017 DE3344017A1 (de) 1983-12-06 1983-12-06 Aktivruder fuer schiffe

Publications (2)

Publication Number Publication Date
EP0144860A2 true EP0144860A2 (fr) 1985-06-19
EP0144860A3 EP0144860A3 (fr) 1987-08-19

Family

ID=6216143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114062A Withdrawn EP0144860A3 (fr) 1983-12-06 1984-11-22 Gouvernail pour bateau comportant une hélice

Country Status (3)

Country Link
EP (1) EP0144860A3 (fr)
DE (1) DE3344017A1 (fr)
FI (1) FI79679C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2163472A1 (fr) 2008-09-12 2010-03-17 Wärtsilä Netherlands B.V. Agencement de propulsion et de direction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105078A1 (de) 2012-06-12 2013-12-12 Kokinetics Gmbh Verstellvorrichtung für ein Ruderblatt oder einen Aussenbordmotor an Wasserfahrzeugen
DE202012102153U1 (de) 2012-06-12 2012-10-11 Kokinetics Gmbh Verstellvorrichtung für ein Ruderblatt oder einen Aussenbordmotor an Wasserfahrzeugen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709666C2 (de) * 1977-03-05 1983-10-06 Willi Becker Ingenieurbuero Gmbh, 2000 Hamburg 5-gliederiges Getriebe zum Verstellen eines Hauptruders mit Flosse für Wasserfahrzeuge
GB2060533B (en) * 1979-10-02 1983-05-05 Rudd K N Steering arrangement for watercraft
DE3150992C2 (de) * 1981-01-15 1987-02-12 Jastram-Werke GmbH & Co KG, 2050 Hamburg Ruder für Wasserfahrzeuge
DE3207398C2 (de) * 1982-03-02 1986-03-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schiffspropulsionsanlage mit einem Haupt- und einem Kontrapropeller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2163472A1 (fr) 2008-09-12 2010-03-17 Wärtsilä Netherlands B.V. Agencement de propulsion et de direction

Also Published As

Publication number Publication date
FI79679B (fi) 1989-10-31
FI844759L (fi) 1985-06-07
EP0144860A3 (fr) 1987-08-19
FI844759A0 (fi) 1984-12-03
FI79679C (fi) 1990-02-12
DE3344017A1 (de) 1985-06-20

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Inventor name: KRANERT, KLAUS, DR.-ING.