EP3668782A1 - Embarcation multicoque submersible - Google Patents

Embarcation multicoque submersible

Info

Publication number
EP3668782A1
EP3668782A1 EP18773538.6A EP18773538A EP3668782A1 EP 3668782 A1 EP3668782 A1 EP 3668782A1 EP 18773538 A EP18773538 A EP 18773538A EP 3668782 A1 EP3668782 A1 EP 3668782A1
Authority
EP
European Patent Office
Prior art keywords
submergible
hulls
hull
craft
propulsion
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Withdrawn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
EP18773538.6A
Other languages
German (de)
English (en)
Inventor
Graham Lockhart ALLEN
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.)
Subsea Craft Ltd
Original Assignee
Subsea Craft Ltd
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 Subsea Craft Ltd filed Critical Subsea Craft Ltd
Publication of EP3668782A1 publication Critical patent/EP3668782A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B63B1/02—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/08—Propulsion

Definitions

  • the present invention relates to a submergible multi-hull craft. Whilst some submarines, particularly smaller ones (also known as
  • the same propeller is used for submerged electric propulsion and surface diesel propulsion. This requires either clutching of one or other of an electric motor and a diesel engine to a propeller shaft, unless the diesel engine drives a generator driving the electric motor.
  • submarines have a hull closable with a hatch for accommodating a crew in a dry environment or at least a capsule for the crew in a submersible. Not all submarines provide a dry environment for the crew.
  • a "wet submarine” generally the crew ride the submarine, in the manner of a horse or a motorbike, wearing diving gear.
  • the object of the present invention is to provide an improved submergible multi-hull craft.
  • a submergible multi-hull craft comprising:
  • non-electric propulsion means could be adapted for charging of batteries for the electric propulsion means; preferably the non-electric propulsion means is provided with generation capacity equivalent to a minor proportion of the battery capacity, the batteries being arranged for
  • the hulls could be arranged as a central hull and two, port and starboard, outrigger hulls; preferably, the hulls are arranged as a pair of similar port and starboard hulls in a catamaran arrangement.
  • each hull its own non-electric means for surface propulsion and its own electric means for submerged propulsion.
  • a submergible multi-hull craft comprising:
  • submerged propulsion means including
  • the craft includes one or more of the following features: • the surface propulsion propeller(s) or impellers are arranged to be at least substantially out of water flow past the hulls when the craft is submerged;
  • the surface propulsion means is at least one jet or pump drive
  • submerged propulsion propeller(s) or water impeller(s) are arranged as at least one fore and aft set;
  • submerged propulsion propeller(s) or water impeller(s) are arranged as at least one port and starboard pair;
  • submerged propulsion propeller(s) or water impeller(s) or at least some of them are arranged to be steerable or to have their thrust steered by a steering fin in their flow;
  • submerged propulsion propeller(s) or water impeller(s) or at least some of them are arranged to be vectored up and down and/or to have their thrust vectored by a steering fin in their flow and/or adapted to be driven at differential thrust speeds for steering.
  • a submergible multi-hull craft comprising:
  • the craft includes one or more of the following features:
  • the interconnecting structure is adapted for pivotal arrangement of the hulls into a configuration more compact than a use configuration in which the hulls are spaced from each other in an even keel arrangement;
  • each hull has at least one crew station or cockpit
  • one crew station of one or both hulls is a helmsman's station or cockpit; • pumps are provided for pumping out the crew accommodation for surface passage;
  • Figure 1 is an isometric view of a submergible multi-hull craft in accordance with the invention
  • Figure 2 is a side view of the craft of Figure 1;
  • Figure 3 is a plan view of the craft
  • Figure 4 is a front view of the craft
  • Figure 5 is an aft view of the craft
  • Figure 6 is a side view similar to that of Figure 2, showing the position of certain main components of the craft.
  • the craft 1 thereshown has a port hull 2 and a starboard hull 3, which are substantially identical and parallel with each other. They comprise a watertight forrard compartment 4, a watertight aft compartment 5 and an open cockpit 6 amidships. Fore and aft bulkheads 7,8 are provided to close the watertight compartments 4,5.
  • the hulls are interconnected by four tubular beams 1 1,12,13,14. These are fast with both sides of the hulls.
  • the forrard beam 1 1 is secured to the forrard bulkheads 7.
  • the second and third beams 12,13 are secured to ribs 16,17 between the bulkheads and the fourth beam is secured to aft ribs 18 in the aft compartments.
  • a deck 19 extends between the hulls over the beams 12,13,14, but not over the front beam 11.
  • Buoyancy tanks which are floodable and blowable and have integral compressed air reservoirs are provided as a forrard tank 21 in the forrard compartment 4, a midships tank 22 in the cockpit 6 and three aft tanks 23 in the aft compartment, three being provided in view of the mass of the engines referred to below.
  • Crew air bottles 24 are provided in the cockpit.
  • Each hull also has in its aft compartment a steerable thrust diesel engine propulsion system 25, which is an off the shelf unit, with a waterjet thrust unit.
  • the systems include a watertight enclosure 26 whereby the aft compartment can be flooded with the engine remaining dry.
  • the enclosures are provided with non-shown, sealable air intakes for surface running of the engines passing through the aft compartments.
  • the hulls each have two, forrard, thrusters 31. These are deployable from recesses 32 in the sides of the hulls. The recesses have watertight walls 33 sealing them from the forrard compartments.
  • the forrard thrusters have cowlings 34 in which electrically driven propellers 35 are journalled.
  • the cowlings are connected to the hulls via arms 36. These are pivotally connected to the hulls at their proximal ends about upright axes 37.
  • the cowlings are pivotally connected to their arms about horizontal axes 38.
  • the arrangement is such that the thrusters can be stowed for surface passage and swung out from the recesses in the hulls when submerged and powered to thrust ahead or astern. They can be rotated to thrust up or down to provide vectored thrust for assisting in surfacing or diving.
  • each hull has two further, aft, thrusters 41 provided. They have similar cowlings 42 in which further electrically driven propellers 43 journalled. They are fixed in their deployment as they remain above water during surface passage. Astern of them trim surfaces 26 are provided between skegs 27. When submerged, the thrusters can drive ahead or astern. The attitude of the trims surfaces, past which water flows from/to the thrusters, can be controlled for surfacing and diving.
  • each hull can have two crew stations between the second and third beams 12,13.
  • a further crew station can be provided between the forrard bulkhead 4 and the first beam 1 1.
  • Further important features are batteries 52 for the thrusters in the bottom of the central part of the cockpit and diesel tanks 53 for the surface propulsion engines in the bottom of the aft part of the cockpit.
  • Pumps 54 are provided in the bottom of the forrard part of the cockpit. For surface passage, the hulls are pumped out, that is to say all of the forrard and aft compartments and the cockpits. The craft floats high in the water and can be propelled at speed by the diesel engine propulsion systems.
  • the compartments and the cockpit are flooded.
  • the craft then has neutral buoyancy and can be trimmed with the tanks 21,22,23. These are half flooded when the craft has neutral buoyancy.
  • To dive the tanks are flooded somewhat and the thrusters 31,41 and the aft trim surfaces 26 can be set to maintain an even keel during diving.
  • the thrusters and the trim surfaces can be set level and the tanks adjusted as required.
  • Submerged steering is by differential speed of port and starboard thrusters.
  • Surfacing is the reverse procedure including pumping out for surface passage.
  • the craft can be of fibre reinforced polymer construction.
  • the beams could be hinged at their point of meeting the hulls for reducing the width of the craft for air transport.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne une embarcation multicoque submersible qui comporte des coques bâbord et tribord identiques, chacune ayant des compartiments étanches à l'eau et un poste de pilotage ouvert au milieu du navire. Les coques sont reliées de façon fixe par quatre poutres tubulaires. Un pont s'étend entre les coques sur les poutres. Des réservoirs de flottabilité inondables et gonflants avec des réservoirs d'air comprimé sont disposés dans les compartiments et dans le poste de pilotage. Chaque coque comporte une propulsion à moteur diesel à poussée orientable dans une enceinte étanche à l'eau. Les coques ont chacune deux propulseurs avant avec des capots et avec des hélices. Les propulseurs peuvent être rangés pour un passage en surface et basculés à l'extérieur depuis les évidements dans les coques lorsqu'ils sont submergés. Ils peuvent être tournés pour une propulsion vers le haut ou vers le bas. À l'arrière, chaque coque comporte deux propulseurs supplémentaires arrière. À l'arrière de ceux-ci, des surfaces de garniture sont disposées entre les crosses.
EP18773538.6A 2017-08-18 2018-08-15 Embarcation multicoque submersible Withdrawn EP3668782A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1713261.4A GB201713261D0 (en) 2017-08-18 2017-08-18 Submarine
PCT/GB2018/052319 WO2019034875A1 (fr) 2017-08-18 2018-08-15 Embarcation multicoque submersible

Publications (1)

Publication Number Publication Date
EP3668782A1 true EP3668782A1 (fr) 2020-06-24

Family

ID=59996639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18773538.6A Withdrawn EP3668782A1 (fr) 2017-08-18 2018-08-15 Embarcation multicoque submersible

Country Status (3)

Country Link
EP (1) EP3668782A1 (fr)
GB (1) GB201713261D0 (fr)
WO (1) WO2019034875A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201901786D0 (en) 2019-02-08 2019-03-27 Subsea Craft Ltd Surface/submersible craft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB823441A (en) * 1956-02-29 1959-11-11 Lapo Legat Surface and submarine craft for use as rapid means of attack for war-like purposes
DE2938319C2 (de) * 1979-09-21 1983-01-13 Günther Rudi Prof.Dr.rer.nat. 7512 Rheinstetten Laukien Doppelrumpf-Wasserfahrzeug
ES2113786B1 (es) * 1994-07-05 1999-01-01 Subidor S A Embarcacion sumergible.

Also Published As

Publication number Publication date
WO2019034875A1 (fr) 2019-02-21
GB201713261D0 (en) 2017-10-04

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