US20120042818A1 - Device for salvaging a marine or submarine engine - Google Patents

Device for salvaging a marine or submarine engine Download PDF

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Publication number
US20120042818A1
US20120042818A1 US13/209,531 US201113209531A US2012042818A1 US 20120042818 A1 US20120042818 A1 US 20120042818A1 US 201113209531 A US201113209531 A US 201113209531A US 2012042818 A1 US2012042818 A1 US 2012042818A1
Authority
US
United States
Prior art keywords
bobbin
tie line
engine
supple
charge
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.)
Abandoned
Application number
US13/209,531
Other languages
English (en)
Inventor
Viorel Ciausu
Marc Luccioni
Vincent Rigaud
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.)
Institut Francais de Recherche pour lExploitation de la Mer (IFREMER)
Original Assignee
Institut Francais de Recherche pour lExploitation de la Mer (IFREMER)
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 Institut Francais de Recherche pour lExploitation de la Mer (IFREMER) filed Critical Institut Francais de Recherche pour lExploitation de la Mer (IFREMER)
Assigned to IFREMER- INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER reassignment IFREMER- INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CIAUSU, VIOREL, LUCCIONI, MARC, RIGAUD, VINCENT
Publication of US20120042818A1 publication Critical patent/US20120042818A1/en
Abandoned 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 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/18—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cableways, e.g. with breeches-buoys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
    • B63C7/02—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects in which the lifting is done by hauling
    • 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
    • B63G8/42—Towed underwater vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base

Definitions

  • said engine can be an autonomous submarine vehicle or AUV (for Autonomous Underwater Vehicle).
  • the cable is initially onboard the AUV.
  • the first steps of salvaging the AUV consist of releasing the cable and waiting until it deploys in the water. Once the cable is deployed, it can be caught from the ship, for example by means of a harpoon or a grapple, and the free end of the cable (i.e. the end not connected to the AUV) can be hauled back on board the ship. The cable can then be attached to the traction system.
  • the bobbin When the engine is to be salvaged from a salvaging base (e.g. a ship, a wharf, an offshore platform, etc.), the bobbin is first released or dropped from the engine. The bobbin then sinks because of the ballast charge. As it sinks, the bobbin brings along with it the supple tie line which unwinds as the bobbin goes down towards the bottom of the water. The unwinding of the supple tie line then prompts the release of the charge and accordingly the unballasting of the bobbin.
  • freeing the charge happens at the end of the unwinding of the supple tie line, i.e. this release is caused by the unwinding of the last turns of the supple tie line.
  • the supple tie line Due to the descent of the bobbin and the relative movement away from the engine, the supple tie line is correctly deployed and spaced apart from the engine, making later salvaging easier. Also, the risk of the supple tie line winding about the engine is limited. Finally, relative to the prior art, salvaging of the tie line, and therefore of the engine, is easier and the risk of damaging the engine is less.
  • Supple tie line designates any type of sufficiently supple tie line which can be wound about the bobbin.
  • This supple tie line must also be sufficiently resistant to support traction forces exerted on it.
  • the supple tie line is, for example, a cable or a cord.
  • the supple tie line is non-floating but sufficiently light so that the behaviour of the supple tie line in water is controlled mainly by the movement of the bobbin and the optional first ballast element described hereinbelow.
  • the supple tie line bears a first stop between its first and second ends
  • the device also comprises at least one first ballast element configured to slide along the supple tie line between the first end and the first stop.
  • the first ballast element slides along the tie line until it comes into abutment against the first stop.
  • the first ballast element exerts on the first portion of tie line located between the first end and the first stop a traction force directed downwards, which tends to keep this first portion of tie line substantially vertical.
  • the first ballast element and the stop also form an articulation zone about which the second portion of tie line, located between the first stop and the second end of the tie line, pivots when the bobbin rises to the surface.
  • This articulation zone exists and is located at a certain distance below the engine further limits the risk of the tie line winding about the engine. In particular, this risk remains limited even if the engine is running after deployment of the tie line.
  • the bobbin has a winding surface about which the supple tie line can be wound, and the bobbin has a recess for receiving the ballast charge, this recess having a first opening through which the ballast charge can pass, this first discharge opening being located on the winding surface.
  • the second end of the supple tie line is connected to an attachment point located inside the recess, the supple tie line passes through the first cover, and the supple tie line bears a second stop between its second end and the cover. This second stop pulls the cover so as to unblock the first opening during unwinding of the supple tie line. Unblocking the first opening then allows the ballast charge to exit the recess and unballast the bobbin which will then rise to the surface.
  • the recess has a second opening through which the ballast charge can pass, this second opening being located outside the winding surface and closed or blocked by a second cover.
  • the ballast charge can be introduced inside the recess through this second opening. Since the cover is located outside the winding surface, placing and removing the cover can be done independently of the winding of the supple tie line about the bobbin. For example, this allows one to introduce the ballast charge into the bobbin while the supple tie line is already wound about the latter.
  • the bobbin bears at least one second ballast element, this second ballast element being arranged on the bobbin so as to orient the first opening downwards, when the bobbin is under water. This helps to empty the recess of the ballast charge more easily and completely.
  • Another aim of the present disclosure is a marine or submarine engine equipped with a device such as described earlier, the first end of the supple tie line being connected to said engine.
  • said engine is configured to take onboard the bobbin enclosed by the supple tie line, the engine comprising a release system for releasing the bobbin.
  • FIG. 1 is a perspective view of an example of a device according to the present disclosure, comprising a bobbin and a supple tie line wound about this bobbin.
  • FIG. 3 is a sectional view, similar to that of FIG. 2 , illustrating the bobbin before the ballast charge is introduced inside the bobbin.
  • FIG. 4 is a perspective view, illustrating the bobbin of FIG. 1 during release of the ballast charge.
  • FIG. 5 is a sectional view of another example of a device according to the present disclosure, comprising a bobbin and a supple tie line wound about this bobbin.
  • FIG. 6 is a sectional view of the device of FIG. 5 , as per the sectional plane VI-VI, after unwinding of the supple tie line.
  • FIG. 1 illustrates an example of a device 10 for salvaging a marine or submarine engine 80 .
  • This engine 80 is shown in FIGS. 7 to 10 .
  • the device 10 comprises a supple tie line 20 and a bobbin 30 .
  • the supple tie line 20 has two ends 21 , 22 .
  • the first end 21 is connected to the engine 80
  • the second end 22 is connected to the bobbin 30 .
  • the supple tie line 20 is a cord.
  • the bobbin 30 comprises a central core 31 defining a winding surface 33 for the tie line 20 .
  • This winding surface 33 is bordered by two flanges 34 , 35 which keep the tie line 20 between them.
  • the central core 31 and one of the flanges 34 form a monobloc assembly.
  • the other flange 35 is fixed to the central core, for example by screwing (screw 36 ). It is to be noted that such a configuration has been chosen to adjust the floatability of the bobbin, and the flange 35 made from floating material(s) is machined, for example, with variable dimensions to vary the Archimedes thrust.
  • the central core 31 has a general shape of a hollow cylinder of axis A, with two openings at its axial ends, respectively blocked by two covers 37 , 38 .
  • the cover 37 is mounted, for example by screwing on the flange 34 and cannot be dismantled.
  • the cover 38 located to the side of the flange 35 blocks the opening 42 and is removable.
  • the central core 31 and the covers 37 , 38 together define a recess 40 .
  • This recess 40 takes up a ballast charge 50 .
  • This ballast charge 50 is formed by an assembly of elementary charges of limited size such as for example metal balls, grains of sand, etc. In particular, the size of these elementary charges is clearly less than that of the openings 41 , 42 of the recess 40 .
  • This ballast charge 50 is introduced inside the recess 40 through the opening 42 , herein called “inlet opening”, as symbolised by arrow F 1 of FIG. 3 .
  • This is possible as the cover 38 is removable. Also, as the inlet opening 42 and its cover 38 are located outside the winding surface 33 of the tie line 20 , it is possible to place/remove the cover 38 even when the cable 20 is wound about the bobbin 30 .
  • the ballast charge 50 can therefore be introduced into the recess 40 , through the inlet opening 42 , after the winding of the cable 20 .
  • the recess 40 also has another opening 41 , herein called “discharge opening”, through which the ballast charge 50 can exit the recess 40 .
  • This discharge opening 41 (see FIG. 4 ) is located on the winding surface 33 and, in this example, it is closed or blocked by another cover 39 whereof the external face 39 A defines a part of the winding surface 33 .
  • the supple tie line 20 and the bobbin 30 cooperate such that the bobbin 30 is released from the charge 50 by the unwinding of the supple tie line 20 wound about the bobbin 30 . More particularly, in this example, the unwinding of the supple tie line 20 causes displacement of the cover 39 and therefore the unblocking of the discharge opening 41 .
  • the second end 22 of the tie line 20 is connected to an attachment point 44 located inside the recess 40 .
  • the supple tie line 20 passes through the cover 39 and bears a stop 45 between its second end 22 and the cover 39 .
  • the stop 45 is, for example, a node obtained by interlacing of the tie line 20 .
  • the length of the tie line 20 between its end 22 and the stop 45 is greater than the distance between the attachment point 44 and the cover 39 in its position closed. So, when the last turn of the tie line 20 unwinds, the tie line 20 stretches and the second stop 45 pulls the cover 39 , which unblocks the discharge opening 41 .
  • the ballast charge 50 can then exit through the opening 41 , as shown by arrow F 2 in FIG. 4 .
  • ballast charge 50 exits the recess 40 by gravity, via the opening 41 , it is preferable for this opening 41 to be oriented downwards as much as possible.
  • this opening 41 is oriented downwards as much as possible.
  • several solutions which can be used alone or in combination, are proposed.
  • One solution consists in providing a discharge opening 41 highly extended circumferentially (for example, more than 180°).
  • Another solution consists in not positioning the attachment point 44 of the supple tie line 20 in a position diametrically opposite the discharge opening 42 but instead positioning the attachment point 44 near the discharge opening 41 and especially on the same side of the axis A as the opening 41 .
  • ballast elements 51 are arranged on the bobbin 30 so as to orient the opening 41 downwards, when the bobbin is under water.
  • five ballast elements 51 in the form of a pin are fixed on the flange 34 of the bobbin 30 , on the same side of the axis A as the discharge opening 41 .
  • FIGS. 5 and 6 Another example of a device 110 is represented in FIGS. 5 and 6 .
  • the device 110 comprises a supple tie line 120 and a bobbin 130 .
  • the supple tie line 120 has two ends. The first end is connected to a submarine or marine engine, and the second end 122 is connected to the bobbin 130 , at the level of an attachment point 144 .
  • the bobbin 130 comprises a central core 131 defining a winding surface 133 for the tie line 120 .
  • This winding surface 133 is bordered by two flanges 134 , 135 which keep the tie line 120 between them.
  • the central core 131 and the two flanges 134 , 135 form a monobloc assembly.
  • the central core 131 is not hollow. Yet it could be, especially for floatability reasons.
  • the bobbin 130 has a recess 140 for receiving a ballast charge 150 .
  • This ballast charge 150 is a single piece such as, for example, a metal bar.
  • the recess 140 has the form of a groove made in the winding surface 133 and, in the example, oriented parallel to the axis of the bobbin.
  • the ballast charge 150 is introduced in the recess 140 via the upper opening 141 of the groove.
  • the “upper opening” is the opening located facing the bottom of the groove. This upper opening 141 is located on the winding surface 133 .
  • the ballast charge 150 is introduced in the recess 140 prior to the winding of the tie line 120 around the bobbin 130 .
  • ballast charge 150 exits the recess 140 by gravity, via the opening 141 , it is preferable for this opening 141 to be oriented downwards as much as possible.
  • this opening 141 is oriented downwards as much as possible.
  • several solutions which can be used alone or in combination, are proposed.
  • One solution consists of positioning the attachment point 144 of the supple tie line 120 in a position diametrically opposite the opening 141 , as shown in FIG. 6 .
  • Another solution consists of mounting on the bobbin 130 one or more ballast elements, these ballast elements being arranged on the bobbin 130 so as to orient the opening 141 downwards, when the bobbin is under water.
  • the engine 80 also comprises a release system for releasing the bobbin 30 .
  • This release system can have different structures and different operating modes which depend in particular of the way in which the bobbin 30 is initially connected to the engine 80 and on the shape of the recess 82 .
  • the recess 82 is closed by a trap 85 (see FIG. 11 ) which can be opened by way of thrust means such as springs or jacks.
  • the release system comprises an electromagnet which, when active, blocks the bobbin 30 inside its recess and which, when deactivated, releases the bobbin 30 .
  • the release system is remote-controlled.
  • the engine 80 On completion of its mission, the engine 80 returns to the surface where it is stopped (i.e. its propulsion means are stopped) or is still moving. Salvaging the AUV starts with releasing the bobbin 30 by using the release system remote-controlled from a distance, for example from a ship (not shown).
  • the bobbin 30 then dives under the effect of gravity and the tie line 20 unwinds in the water column located under the nose 80 A of the engine 80 , as shown by arrow F 4 in FIG. 7 .
  • the ballast element 70 slides along the tie line 20 until it stops against a stop 71 shown by arrow F 5 in FIG. 8 .
  • This stop 71 is located at a significant distance from the first end 21 of the tie line. For example, this stop is a node obtained by interlacing of the tie line 20 .
  • the cover 39 of the bobbin 30 opens and the ballast charge 50 is released, as shown in FIG. 8 .
  • the bobbin 30 then becomes floating and rises to the surface, pulling with it the tie line 20 as shown in FIG. 9 .
  • the bobbin 30 behaves like a drifting buoy. The bobbin 30 can then be caught and taken on board the ship using different methods.
  • one method consists in using a floating harpoon which is dragged by the ship on a cable.
  • the engine 80 moves in such a way that the trajectory of the tie line 20 intersects that of said cable.
  • the bobbin 30 is taken on board the ship by way of the cable and the harpoon.
  • the device functions in a water column.
  • the ballast charge 50 is dropped, the bobbin rises to the surface.
  • the bobbin 30 then drifts under the action of deep-sea currents, while the engine 80 drifts under the action of the wind and the surface sea current. The result is that the bobbin 30 arrives at the surface at a significant distance from the engine 80 , achieving the goal in question.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Cable Installation (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
US13/209,531 2010-08-18 2011-08-15 Device for salvaging a marine or submarine engine Abandoned US20120042818A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1056656 2010-08-18
FR1056656A FR2963924B1 (fr) 2010-08-18 2010-08-18 Dispositif pour la recuperation d'un engin marin ou sous-marin

Publications (1)

Publication Number Publication Date
US20120042818A1 true US20120042818A1 (en) 2012-02-23

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US13/209,531 Abandoned US20120042818A1 (en) 2010-08-18 2011-08-15 Device for salvaging a marine or submarine engine

Country Status (5)

Country Link
US (1) US20120042818A1 (fr)
EP (1) EP2420440B1 (fr)
JP (1) JP2012051555A (fr)
CA (1) CA2750118A1 (fr)
FR (1) FR2963924B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160313732A1 (en) * 2015-04-23 2016-10-27 Parrot Drones System for piloting a drone in immersion
CN108238221A (zh) * 2016-12-27 2018-07-03 中国船舶重工集团公司七五○试验场 拖曳线列阵展开判别装置
WO2019011490A1 (fr) * 2017-07-14 2019-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Système et dispositif pour récupérer un véhicule

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105644747A (zh) * 2014-11-13 2016-06-08 上海海洋大学 深海缆控潜水器水下脱离系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738524A (en) * 1955-04-01 1956-03-20 Jr Robert L Peay Automatic floating disaster marker
US4319372A (en) * 1980-04-07 1982-03-16 The United States Of America As Represented By The Secretary Of The Navy Submarine rescue cable reel
US8167670B1 (en) * 2010-09-20 2012-05-01 The United States Of America As Represented By The Secretary Of The Navy Blow-off float vehicle recovery apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325557A2 (fr) * 1974-05-08 1977-04-22 Eca Systeme d'exploration et de surveillance des fonds sous-marins par engin a alimentation exterieure
IT1311837B1 (it) * 1999-05-19 2002-03-19 Studio 3 Ingegneria Srl Dispositivo di attracco per veicoli autonomi sottomarini semoventi
US6257162B1 (en) * 1999-09-20 2001-07-10 Coflexip, S.A. Underwater latch and power supply
FR2904288B1 (fr) 2006-07-26 2009-04-24 Ifremer Installation et procede de recuperation d'un engin sous-marin ou marin
FR2904287B1 (fr) * 2006-07-26 2008-10-24 Ifremer Appareil de recuperation d'un engin sous-marin ou marin

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738524A (en) * 1955-04-01 1956-03-20 Jr Robert L Peay Automatic floating disaster marker
US4319372A (en) * 1980-04-07 1982-03-16 The United States Of America As Represented By The Secretary Of The Navy Submarine rescue cable reel
US8167670B1 (en) * 2010-09-20 2012-05-01 The United States Of America As Represented By The Secretary Of The Navy Blow-off float vehicle recovery apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160313732A1 (en) * 2015-04-23 2016-10-27 Parrot Drones System for piloting a drone in immersion
US9886033B2 (en) * 2015-04-23 2018-02-06 Parrot Drones System for piloting a drone in immersion
CN108238221A (zh) * 2016-12-27 2018-07-03 中国船舶重工集团公司七五○试验场 拖曳线列阵展开判别装置
WO2019011490A1 (fr) * 2017-07-14 2019-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Système et dispositif pour récupérer un véhicule

Also Published As

Publication number Publication date
EP2420440B1 (fr) 2015-02-18
FR2963924B1 (fr) 2012-09-14
JP2012051555A (ja) 2012-03-15
FR2963924A1 (fr) 2012-02-24
CA2750118A1 (fr) 2012-02-18
EP2420440A1 (fr) 2012-02-22

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AS Assignment

Owner name: IFREMER- INSTITUT FRANCAIS DE RECHERCHE POUR L'EXP

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CIAUSU, VIOREL;LUCCIONI, MARC;RIGAUD, VINCENT;REEL/FRAME:027130/0715

Effective date: 20111020

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE