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DE19522035A1 - Keel construction for yacht - Google Patents

Keel construction for yacht

Info

Publication number
DE19522035A1
DE19522035A1 DE19522035A DE19522035A DE19522035A1 DE 19522035 A1 DE19522035 A1 DE 19522035A1 DE 19522035 A DE19522035 A DE 19522035A DE 19522035 A DE19522035 A DE 19522035A DE 19522035 A1 DE19522035 A1 DE 19522035A1
Authority
DE
Germany
Prior art keywords
keel
plates
yacht
keel plates
ballast
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.)
Ceased
Application number
DE19522035A
Other languages
German (de)
Inventor
Guenter J Dipl Ing Peters
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE19522035A1 publication Critical patent/DE19522035A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00Hulls characterised by their structure or component parts
    • B63B3/14Hull parts
    • B63B3/38Keels

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Special Spraying Apparatus (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

Keel constructed from two plates (1,2) having the concave profiles of an aerofoil with flow nozzles (6) let into the sides. Ballast is created by a thick lead or steel plate (3) attached to the bottom of the keel plates. The flow nozzles guide the stream of water along the shortest path from stem to stern.

Description

1. Beschreibung1. Description

Die Erfindung betrifft den hydrodynamisch - auf der Basis aerodynamischer Erkenntnisse - verbesserten SPALTENKIEL, einen festen Kiel mit Ballast, der an Segelyachten jeder Größe angebaut werden kann.The invention relates to the hydrodynamic - based aerodynamic knowledge - improved SPALTENKIEL, a fixed keel with ballast, which can be used on sailing yachts of any size can be grown.

In der Patentanmeldung P 43 44 740.6-22, PCT/DE 93/01243
sind der neuartige Spaltenkiel und der konventionelle Kiel sowie der Flügelkiel gegenübergestellt, um die Wirkungsweise des Spaltenkiels zu erläutern.
In patent application P 43 44 740.6-22, PCT / DE 93/01243
The new split keel and the conventional keel as well as the wing keel are compared to explain the mode of operation of the split keel.

Das bisherige Ergebnis:
Infolge der Elimination der KARMAN′schen Wirbelschleppe wird die negative Beeinflussung des Ruders aufgehoben; durch den Zuwachs des "VIRTUELLEN BALLASTES" mit zunehmender Fahrt und Krängung der Segelyacht wird sie steifer - beides zusammen bewirkt eine Verringerung der Abtrift, damit eine Verkürzung des Leerweges, gleichbedeutend einem Geschwindigkeitsgewinn!
The result so far:
As a result of the elimination of the KARMAN vortex, the negative influence on the rudder is removed; with the increase of the "VIRTUAL BALLAST" with increasing cruising and heeling of the sailing yacht it becomes stiffer - both together reduce the drift, thus shortening the free travel, which means a gain in speed!

Der andere Anteil an der gesamten Erhöhung des Geschwindigkeits­ potentials der Yacht nach dem Einbau des "SPALTENKIELS" resultiert aus dem Düseneffekt infolge der Gestaltung des neuartigen Kiels; in der Düse wird der Strom der Wasserfäden geradlinig auf dem kürzesten Wege vom Bug zum Heck geleitet und erfährt durch die Grenzschicht-Absaugung - von den Außenflächen der Spaltenkielplatten in den Düsenstrom hinein eine weitere Beschleunigung. The other part of the total increase in speed potential of the yacht after installing the "SPALTENKIELS" results from the nozzle effect due to the design of the novel keel; in the nozzle is the stream of water threads straight from the bow to the stern and experiences through the boundary layer suction - from the Outer surfaces of the slotted keel plates into the jet stream another acceleration.  

Durch drei weitere Verbesserungen, die Gegenstand der Anmeldung diese Zusatzpatentes sind, wird eine weitere Steigerung der Geschwindigkeit der Yacht als eine erstrangige Maxime der Yachtkonstruktion erreicht.By three further improvements, the subject of the application these additional patents will further increase the Speed of the yacht as a top priority of the Yacht construction achieved.

  • 1. Die Spaltenkielplatten erhalten ein Profil, wie es aus Versuchen und der Konstruktion von Tragflügeln bekannt ist: eine stärkere, gut abgerundete Vorderkante an der Eintrittsöffnung der Düse, die Innenflächen der Spaltenkiel­ platten haben kein stromlinienförmiges Profil mehr, sondern sondern jetzt eine konkave Wölbung von vorn nach achtern, im Heckbereich sind die Kielplatten fein ausgezogen und haben eine scharfe Abschlußkante.1. The slatted keel panels get a profile like this Trying and designing wings known is: a stronger, well rounded front edge on the Inlet opening of the nozzle, the inner surfaces of the column keel panels no longer have a streamlined profile, but but now a concave curvature from front to aft, in the stern area the keel plates are finely drawn out and have a sharp end edge.

In Modellversuchen sollte getestet werden, ob eine durchgehende gerade Kante weniger Störungen bringt als ein unterbrochener Abschluß, wie er bei den Hinterkanten der Vogelflügel zu beobachten ist!Model tests should test whether a continuous straight edge brings less interference as an interrupted degree, as in the The trailing edges of the bird's wings can be observed!

  • 2. Die Spalten in den Spaltenkielplatten werden auf maximal zwei reduziert; die Spalten beginnen im Bereich des höchsten Wasserdrucks unten vorn und führen schräg nach hinten oben.2. The columns in the column keel plates are at maximum two reduced; the columns begin in the area of the highest Water pressure below the front and lead obliquely backwards up.

Anzahl und optimaler Verlauf der Spalten sind in Modellversuchen zu beobachten und nach Vergleichs­ messungen festzulegen.The number and optimal course of the columns are in Observe model tests and after comparison determine measurements.

  • 3. Der Ballast wird als eine dicke Blei- oder Stahlplatte zwischen den untersten Enden der Kielplatten eingebaut.3. The ballast is called a thick lead or steel plate installed between the lowest ends of the keel plates.

Die Wölbung der Ballastoberseite in der Düse ist konvex, umThe curvature of the ballast top in the nozzle is convex to

  • 3.1 zur Beschleunigung des Düsenstromes beizutragen und3.1 contribute to the acceleration of the jet stream and
  • 3.2 ein Art planer Auflagerfläche zu schaffen, wenn die Yacht ins Winterlager geht oder draußen trockenfallen soll.3.2 to create a kind of flat support surface when the yacht goes to winter storage or is supposed to dry out outdoors.

Die endgültige Gestaltung des Ballastes, auch in Bezug auf die optimale Wirkung des "VIRTUELLEN BALLASTES" sollte in eigenen Modellversuchen besonderer Aufgabenstellung erfolgen.The final design of the ballast, also in Regarding the optimal effect of the "VIRTUAL BALLASTES "should be tested in its own model special task.

Claims (3)

1. Spaltenkielplatten, die steuerbords und backbords am Unter­ wasserschiff der Segelyacht montiert sind und ein Profil aufweisen,wie es aus aerodynamischen Versuchen und der Konstruktion von Tragflügeln bekannt ist, d. h. mit einer konkaven Wölbung auf den Innenseiten der Kielplatten.1. Split keel panels, the starboard and port sides at the bottom water ship of the sailing yacht are assembled and a profile have, as it from aerodynamic tests and the Wing construction is known, d. H. with a concave curvature on the inside of the keel plates. 2. Spaltenkielplatten, in die je eine, maximal zwei Spalten Spalten hineingeschnitten sind und zwar am unteren Ende von vorn nach hinten aufsteigend, so daß der höchste Wasserdruck aus der Grenzschicht der Außenseiten der Spaltenkielplatten zuerst einströmt.2. Split keel plates, in each one, a maximum of two columns Columns are cut in at the bottom ascending from front to back so that the highest Water pressure from the boundary layer of the outside of the Creeping in the keel plates first. 3. Der Ballast wird als eine dicke Blei- oder Stahlplatte zwischen den untersten Enden der Spaltenkielplatten montiert, in ihrer Form nähert sie sich einem Tragflügelprofil, die konvexe Seite diesmal der Düse zugewandt.3. The ballast is called a thick lead or steel plate mounted between the lowest ends of the slatted keel plates, in its shape it approaches a wing profile, the this time the convex side faces the nozzle.
DE19522035A 1993-12-24 1995-06-17 Keel construction for yacht Ceased DE19522035A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/DE1993/001243 WO1995018036A1 (en) 1993-12-24 1993-12-24 Slotted keel with jet action
DE4344740A DE4344740A1 (en) 1993-12-24 1993-12-24 Split keel with jet effect for yachts

Publications (1)

Publication Number Publication Date
DE19522035A1 true DE19522035A1 (en) 1996-12-19

Family

ID=25932594

Family Applications (3)

Application Number Title Priority Date Filing Date
DE4397735T Expired - Fee Related DE4397735D2 (en) 1993-12-24 1993-12-24 Split keel with a jet effect
DE4344740A Ceased DE4344740A1 (en) 1993-12-24 1993-12-24 Split keel with jet effect for yachts
DE19522035A Ceased DE19522035A1 (en) 1993-12-24 1995-06-17 Keel construction for yacht

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE4397735T Expired - Fee Related DE4397735D2 (en) 1993-12-24 1993-12-24 Split keel with a jet effect
DE4344740A Ceased DE4344740A1 (en) 1993-12-24 1993-12-24 Split keel with jet effect for yachts

Country Status (2)

Country Link
DE (3) DE4397735D2 (en)
WO (1) WO1995018036A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7841285B2 (en) * 2003-12-23 2010-11-30 Jonathan Sebastian Howes Waterborne vessel with loop keel
US20230294797A1 (en) * 2020-07-06 2023-09-21 Candela Technology Ab A hydrofoil vessel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2408487B (en) * 2004-12-20 2006-03-15 Jonathan Sebastian Howes Waterborne vessel with keel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337924C2 (en) * 1983-10-19 1986-07-24 Hermann von Dr.-Phys. 5307 Wachtberg Issendorff Profile variable keel
GB2177353A (en) * 1985-07-09 1987-01-21 Basil Cameron Rennie Boat keel
DE3619962A1 (en) * 1986-06-13 1987-12-17 Erika Mack Device for reducing the lateral drifting of water craft in particular water craft which travel under sail
US4899679A (en) * 1987-10-06 1990-02-13 Sarvis Oy Keel structure
US5002001A (en) * 1987-03-13 1991-03-26 Guenter Spranger Blade-like profiled device for acting on a gaseous or liquid fluid flow
DE3939437A1 (en) * 1989-11-29 1991-06-06 Walter Loidl Yacht with device to counteract heeling over - which is formed by hinged flaps fitted in openings in keel
DE4334496A1 (en) * 1993-10-09 1995-04-13 Triebel Georg Laminar flow body for controlling watercraft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405864A1 (en) * 1977-10-17 1979-05-11 Biart Jean Pierre Wind-surfer with moulded hull - has removable ballast located in cylinder at base of keel fin
SE8104074L (en) * 1981-06-30 1982-12-31 Bengt Akerblom FLOW MODIFYING ELEMENT, Separate RODS
US4759308A (en) * 1985-07-17 1988-07-26 F2 International Gesellschaft M.B.H. Sealing lip assembly for surfboards and sailboats

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337924C2 (en) * 1983-10-19 1986-07-24 Hermann von Dr.-Phys. 5307 Wachtberg Issendorff Profile variable keel
GB2177353A (en) * 1985-07-09 1987-01-21 Basil Cameron Rennie Boat keel
DE3619962A1 (en) * 1986-06-13 1987-12-17 Erika Mack Device for reducing the lateral drifting of water craft in particular water craft which travel under sail
US5002001A (en) * 1987-03-13 1991-03-26 Guenter Spranger Blade-like profiled device for acting on a gaseous or liquid fluid flow
US4899679A (en) * 1987-10-06 1990-02-13 Sarvis Oy Keel structure
DE3939437A1 (en) * 1989-11-29 1991-06-06 Walter Loidl Yacht with device to counteract heeling over - which is formed by hinged flaps fitted in openings in keel
DE4334496A1 (en) * 1993-10-09 1995-04-13 Triebel Georg Laminar flow body for controlling watercraft

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Die Yacht, 1981, S.162 *
Yachting World, März, 1975, S.121 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7841285B2 (en) * 2003-12-23 2010-11-30 Jonathan Sebastian Howes Waterborne vessel with loop keel
US20230294797A1 (en) * 2020-07-06 2023-09-21 Candela Technology Ab A hydrofoil vessel

Also Published As

Publication number Publication date
DE4344740A1 (en) 1995-06-29
DE4397735D2 (en) 1997-01-16
WO1995018036A1 (en) 1995-07-06

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