EP0352195A1 - Katamaran - Google Patents

Katamaran Download PDF

Info

Publication number
EP0352195A1
EP0352195A1 EP89402077A EP89402077A EP0352195A1 EP 0352195 A1 EP0352195 A1 EP 0352195A1 EP 89402077 A EP89402077 A EP 89402077A EP 89402077 A EP89402077 A EP 89402077A EP 0352195 A1 EP0352195 A1 EP 0352195A1
Authority
EP
European Patent Office
Prior art keywords
waterline
ship
blade
rigid blade
floats
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Withdrawn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
EP89402077A
Other languages
English (en)
French (fr)
Inventor
Jean-Marc Michel Maurice Henri Lefèvre
Paul Lucas
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 EP0352195A1 publication Critical patent/EP0352195A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/18—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
    • B63B1/20—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/18—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
    • B63B1/20—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface
    • B63B2001/204—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface arranged on multiple hulls
    • B63B2001/205—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface arranged on multiple hulls the hulls being interconnected rigidly
    • B63B2001/206—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface arranged on multiple hulls the hulls being interconnected rigidly comprising two hulls, e.g. catamarans

Definitions

  • the invention relates to a catamaran ship.
  • This vessel comprises two profiled floats made integral by a link arranged above the waterline and is characterized in that each float has, under the waterline, a recess extending towards the rear of each float and in that a rigid blade is fixed to the hull in the aft area of the ship under this waterline, this blade being oriented substantially along the axis of the ship, at an angle with the vertical to the waterline.
  • the rigid blade is planar at least in part.
  • At least part of the rigid blade forms an angle which is substantially straight with the vertical to the waterline.
  • the rigid blade is fixed to the floats.
  • the rigid blade oriented substantially along the axis of the ship has an incidence from its front edge towards the waterline.
  • the offset of the floats is located in forward of the ship's center of gravity.
  • the rigid blade is fixed to the shell by means allowing the adjustment of its incidence.
  • the vessel according to the invention can be adapted to various uses, pleasure craft, the transport of goods or people, or fishing.
  • the payload of the vessel can be large in order, in the case of fishing boats, to extend the fishing time.
  • the catamaran ship according to the invention comprises a hull provided with two profiled floats 1, 2, which are connected, above the waterline, by a plate 3, preferably hollow.
  • the floats 1, 2 have, below the waterline 4, a recess 5 which extends to the rear 6 of each float.
  • the two floats 1, 2 are connected by a rigid blade 7 which, in the example shown, is planar and which is disposed at the rear of the ship, substantially parallel to and below the waterline 4 but with a slight incidence of its front edge towards the waterline, in order to favor the lifting of the bow of the ship when it starts.
  • This blade can however be made of very different shapes, dimensions and arrangements, the main thing however being that this blade is oriented in a direction 71 which corresponds substantially to the axis XX of this vessel by forming an angle with the vertical YY at the waterline 4.
  • This blade can thus be produced, at least partially, in a curved shape or using several flat surfaces joined together by curved surfaces or sharp angles.
  • the rigid blade 7 is also pivotally supported, by means of a transverse axis 8, at the lower end of two thin arms 9 fixed to the rear end of the ship under the lower end of the floats, in order to be constantly deeply submerged in water.
  • the rigid blade 7, pivotally mounted on the axis 8, is connected by a transmission not shown to a control device actuable by the pilot, this control device allowing fine adjustment of the incidence of the blade 7 as a function, in particular, the load of the ship, the distribution of this load and the speed of the ship.
  • Automatic means may also be provided in order to instantly adjust the incidence of the blade 7 as a function of the conditions of evolution of the ship.
  • this blade 7 may include flaps (not shown), connected to manual or automatic control means for adjusting the inclination of the ship in motion, as well as its planing as a function of the load and of speed.
  • the bearing capacity of the vessel is determined by three zones consisting of a rear zone formed by the blade 7 and two front zones formed by the lower parts 11, 21 of the two floats 1, 2, located in front of the step 5.
  • the blade 7 immersed at the rear of the ship effectively protects the propellers and rudders during grounding and does not cause any discomfort, either for docking maneuvers, or, in the case of a boat for the launching of fishing gear.
  • the recess 5 is located in front of the center of gravity of the ship and the combination of the recess 5 and the blade 7 makes it possible, when the ship is in motion, to move forward, in F1, the lifting force of the ship, this being, at standstill, in F2, vertical to the center of gravity P.
  • the step 5 forms a sharp angle located in front of the center of gravity and extends to the rear edge 6 along an evolving curve whose tangent is substantially parallel to the surface of the water when the ship is under way.
  • the lower zone of the floats is V-shaped, whether at the front or at the rear of the recess 5.
  • any other embodiment may be chosen according to the type of the ship. made and its use.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • 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)
EP89402077A 1988-07-21 1989-07-21 Katamaran Withdrawn EP0352195A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809868A FR2634450B1 (fr) 1988-07-21 1988-07-21 Navire catamaran
FR8809868 1988-07-21

Publications (1)

Publication Number Publication Date
EP0352195A1 true EP0352195A1 (de) 1990-01-24

Family

ID=9368635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402077A Withdrawn EP0352195A1 (de) 1988-07-21 1989-07-21 Katamaran

Country Status (3)

Country Link
EP (1) EP0352195A1 (de)
FR (1) FR2634450B1 (de)
NO (1) NO892972L (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994001323A1 (en) * 1992-07-09 1994-01-20 Stena Rederi Ab A pitch stabilized displacement vessel
CN1040308C (zh) * 1991-12-05 1998-10-21 克瓦纳尔菲耶尔斯特兰德有限公司 多体船
FR2808250A1 (fr) * 2000-04-28 2001-11-02 Stephane Chollet Bateau a moteur a coque planante
EP1182126A1 (de) * 2000-08-18 2002-02-27 David R. Craig Bootskörper
WO2008007249A2 (en) 2006-06-13 2008-01-17 Cape Advanced Engineering (Proprietary) Limited A hydrofoil-assisted multi-hulled watercraft
CN102328726A (zh) * 2011-05-26 2012-01-25 郑霞 低阻耗快艇
WO2014068115A1 (en) 2012-11-02 2014-05-08 Ian James Duncan Planing hydrofoils for marine craft
WO2014068121A1 (en) 2012-11-02 2014-05-08 Ian James Duncan Foil-assisted catamaran marine craft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964417A (en) * 1974-05-14 1976-06-22 Hydrobike Incorporated Water vehicles
GB1524938A (en) * 1976-10-28 1978-09-13 Cantiere Navaltecnica Spa Catamarans
AU549022B2 (en) * 1981-11-04 1986-01-09 Die Buro Vir Meganiese Igenieurswese Van Die_universiteit Van Stellenbosch Catamaran-type boat
US4644890A (en) * 1985-03-05 1987-02-24 Lott David A Trimaran with planing hull
US4748929A (en) * 1987-03-23 1988-06-07 Payne Peter R Planing catamaran

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524938A (en) * 1923-11-07 1925-02-03 California Cedar Prod Plaster lath

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964417A (en) * 1974-05-14 1976-06-22 Hydrobike Incorporated Water vehicles
GB1524938A (en) * 1976-10-28 1978-09-13 Cantiere Navaltecnica Spa Catamarans
AU549022B2 (en) * 1981-11-04 1986-01-09 Die Buro Vir Meganiese Igenieurswese Van Die_universiteit Van Stellenbosch Catamaran-type boat
US4644890A (en) * 1985-03-05 1987-02-24 Lott David A Trimaran with planing hull
US4748929A (en) * 1987-03-23 1988-06-07 Payne Peter R Planing catamaran

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1040308C (zh) * 1991-12-05 1998-10-21 克瓦纳尔菲耶尔斯特兰德有限公司 多体船
WO1994001323A1 (en) * 1992-07-09 1994-01-20 Stena Rederi Ab A pitch stabilized displacement vessel
US5535690A (en) * 1992-07-09 1996-07-16 Stena Rederi Ab Pitch stabilized displacement vessel
FR2808250A1 (fr) * 2000-04-28 2001-11-02 Stephane Chollet Bateau a moteur a coque planante
WO2001083289A1 (fr) * 2000-04-28 2001-11-08 Chollet Stephane Bateau a moteur a coque planante
US6546890B1 (en) 2000-08-18 2003-04-15 David R. Craig Boat hull
EP1182126A1 (de) * 2000-08-18 2002-02-27 David R. Craig Bootskörper
WO2008007249A2 (en) 2006-06-13 2008-01-17 Cape Advanced Engineering (Proprietary) Limited A hydrofoil-assisted multi-hulled watercraft
WO2008007249A3 (en) * 2006-06-13 2008-11-27 Cape Advanced Engineering Prop A hydrofoil-assisted multi-hulled watercraft
AU2007273960B2 (en) * 2006-06-13 2011-12-01 Cape Advanced Engineering (Proprietary) Limited A hydrofoil-assisted multi-hulled watercraft
US8701583B2 (en) 2006-06-13 2014-04-22 Cape Advanced Engineering (Pty) Ltd Hydrofoil-assisted multi-hulled watercraft
CN102328726A (zh) * 2011-05-26 2012-01-25 郑霞 低阻耗快艇
WO2014068115A1 (en) 2012-11-02 2014-05-08 Ian James Duncan Planing hydrofoils for marine craft
WO2014068121A1 (en) 2012-11-02 2014-05-08 Ian James Duncan Foil-assisted catamaran marine craft

Also Published As

Publication number Publication date
NO892972L (no) 1990-01-22
NO892972D0 (no) 1989-07-20
FR2634450A1 (fr) 1990-01-26
FR2634450B1 (fr) 1994-12-09

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