EP1902938A2 - Schwimmer für ein in das Meer abgeworfene, luftfahrzeuggestützte Vorrichtung, insbesondere für eine Gegenmaßnahme - Google Patents
Schwimmer für ein in das Meer abgeworfene, luftfahrzeuggestützte Vorrichtung, insbesondere für eine Gegenmaßnahme Download PDFInfo
- Publication number
- EP1902938A2 EP1902938A2 EP07150497A EP07150497A EP1902938A2 EP 1902938 A2 EP1902938 A2 EP 1902938A2 EP 07150497 A EP07150497 A EP 07150497A EP 07150497 A EP07150497 A EP 07150497A EP 1902938 A2 EP1902938 A2 EP 1902938A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- float
- casing
- bag
- movable
- supporting body
- 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.)
- Granted
Links
- 238000007654 immersion Methods 0.000 claims abstract description 13
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 7
- 230000003213 activating effect Effects 0.000 claims description 10
- 230000000717 retained effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002360 explosive Substances 0.000 description 4
- 241000251729 Elasmobranchii Species 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B22/003—Buoys adapted for being launched from an aircraft or water vehicle;, e.g. with brakes deployed in the water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B22/22—Inflatable buoys with gas generating means
-
- 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
- B63G9/00—Other offensive or defensive arrangements on vessels against submarines, torpedoes, or mines
- B63G9/02—Means for protecting vessels against torpedo attack
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J2/00—Reflecting targets, e.g. radar-reflector targets; Active targets transmitting electromagnetic or acoustic waves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/02—Stabilising arrangements
- F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
- F42B10/16—Wrap-around fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/005—Combination-type safety mechanisms, i.e. two or more safeties are moved in a predetermined sequence to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/24—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2209/00—Energy supply or activating means
- B63B2209/08—Energy supply or activating means impact with water-surface or -bottom
Definitions
- the present invention relates to a float for a device air-launched into the sea, in particular for a countermeasure, to which the following description refers purely by way of example.
- the defense systems of ships and ports are designed to detect torpedoes launched by enemy vessels, and to air-launch countermeasures into the sea at a given distance.
- the countermeasures are equipped with electronic devices which, following immersion, attempt to foil the incoming torpedo firing systems by emitting signals simulating the presence of a ship, i.e. a decoy, to lure the torpedo off course.
- the countermeasure comprises a rocket for propelling it to a predetermined immersion position; and a parachute which opens during flight, close to the predetermined immersion position, in response to an electromechanical command. Following immersion, the parachute slows down descent of the countermeasure to allow the electronic devices to emit the signals at a predetermined depth and long enough to lure the torpedo off course.
- US-A-5341718 discloses a float for a device air-launched into the sea, as defined in the preamble of claim 1.
- Number 1 in Figure 1 indicates a countermeasure, which comprises a fore portion 2 housing electronic devices (not shown) which, in use, emit signals simulating the presence of a decoy in the sea to lure torpedoes, launched against a ship or port, off course.
- Countermeasure 1 has no propulsion systems, and is air-launched by known launch systems, not described in detail, on said ship or at said port. More specifically, countermeasure 1 is launched by a compressed-air system from a launch tube (not shown) which guides countermeasure 1 along an axis 3 over the initial portion of its flight path.
- Countermeasure 1 comprises an aft portion defined by a float 4, which keeps portion 2 at a given depth once countermeasure 1 is immersed into the sea.
- Float 4 comprises a casing 6, in turn comprising a rear cover 7, and a substantially cylindrical lateral wall 8, which is coaxial with portion 2 along axis 3, is fixed to portion 2 in known manner not shown, and defines a rear opening 10 ( Figure 8) closed by cover 7.
- casing 6 supports a number of flight stabilizing members or so-called flaps 15, which have respective surfaces 16 complementary to the contour of wall 8, and are movable between a launch position, in which they are enclosed by the launch tube and flush with portion 2, with respective surfaces 16 facing or resting on wall 8, and a flight position (shown by the dash line in Figure 2), in which they are open and project from wall 8.
- Flaps 15 are preferably hinged to wall 8 about respective axes 18 parallel to axis 3, and, on leaving the launch tube, are preferably opened automatically into the flight position by respective torsion springs 19 preloaded and wound about axes 18.
- cover 7 is held onto the rear edge of wall 8 by a retaining device 20, which comprises a number of seats 21 formed in cover 7, and, for each seat 21, a respective appendix 22 which is movable to engage/release seat 21.
- Appendixes 22 are held in the engaged position by flaps 15, and are automatically released from seats 21 as flaps 15 open into the flight position. More specifically, appendixes 22 are carried directly, in a fixed position, on surfaces 16.
- casing 6 defines a cavity 23 housing an inflatable bag 24, two pressurized-gas cylinders 25, and an activating or control unit 26 comprising an inertial mass 27.
- Mass 27 is movable, in response to deceleration of casing 6 caused by immersion of countermeasure 1 into the sea, from an idle position to a work position to commence inflation of bag 24 with the gas from cylinders 25. More specifically, mass 27 is ring-shaped, is coaxial with wall 8, and is housed inside a gap 28 defined radially by wall 8 and by a sleeve 29 terminating with an outer flange 30 fixed to wall 8.
- mass 27 is guided by a number of rods 32, which are parallel to axis 3, are supported by wall 8 in angularly fixed positions, extend through mass 27, and are wound with respective coil springs 33.
- Springs 33 act at one end on mass 27, and at the other end on respective shoulders 34 housed inside gap 28 and supported in fixed positions by rods 32.
- Gap 28 is bounded axially by flange 30 and by a ring 35 fixed to wall 8.
- Flange 30 and ring 35 guide rods 32, in directions parallel to axis 3, between a retaining position ( Figure 7), in which shoulders 34 are adjacent to mass 27 to retain mass 27 in the idle position during launching, and a release position ( Figure 4), in which shoulders 34 are spaced apart from mass 27 to reduce compression on springs 33 during flight and immersion.
- Rods 32 are preferably maintained in the retaining position by respective shoulders 36, which rotate with flaps 15 about axes 18. Rods 32 translate automatically into the release position when flaps 15 open into the flight position, by virtue of shoulders 36 moving laterally with respect to the path along which rods 32 are pushed by springs 33.
- Bag 24 is housed inside a chamber 37 defined by two bodies 38, 39 coaxial with each other along axis 3.
- Body 38 is cup-shaped, and comprises a bottom wall 40 perpendicular to axis 3, facing portion 2, and connected to bag 24 by a flexible, extensible cable 41.
- Body 39 comprises a flat wall 43 perpendicular to axis 3 and supporting bag 24; and a substantially cylindrical wall 44 which slides axially inside sleeve 29.
- Body 39 also comprises two appendixes 45, which form an extension of wall 44 towards cover 7, are diametrically opposite with respect to axis 3, and terminate with respective outer flanges 46.
- Flanges 46 are guided by rods 47, which are parallel to axis 3, are supported in fixed positions by sleeve 29, extend through flanges 46, and are wound with respective coil springs 48. Springs 48 act on flanges 46, and are preloaded to push body 39 from a rest position towards opening 10 when mass 27 translates from the idle position to the work position.
- Appendixes 45 and wall 43 define a seat 49 ( Figure 7) housing cylinders 25.
- cylinders 25 are fixed to a support 50, in turn fixed to wall 43 and supporting two slides 51.
- Slides 51 are movable between a withdrawn position, in which cylinders 25 are sealed with respect to bag 24, and a forward position, in which cylinders 25 communicate with bag 24 along a passage 52 formed in support 50 and in a fitting 53 extending along axis 3 through wall 43 and support 50.
- one end 54 of fitting 53 is housed inside chamber 37 and fixed in fluidtight manner to bag 24, and a nut 57 is screwed to an opposite end 56 to grip support 50 and wall 43 in fluidtight manner axially between end 54 and nut 57.
- Slides 51 preferably slide in fluidtight manner inside respective guide seats 58 formed in support 50, are defined by pointed strikers, which pierce respective end sealing walls 59 of cylinders 25 as the slides move into the forward position, and have respective inner channels 60 connecting the inside of cylinders 25 to passage 52 when the slides are in the forward position.
- Slides 51 translate into the forward position, in opposition to respective springs 62 and in response to mass 27 moving into the work position, via the interposition of a mechanical transmission system 63 ( Figure 6), which comprises a cam 64 supported by casing 6, and, for each slide 51, a respective cam follower 65 cooperating with and contacting cam 64. More specifically, cam followers 65 are fixed with respect to slides 51, and project from seats 49 and 58; cam 64 forms part of ring 35; and body 39 forms part of system 63, as body 39 draws cam follower 65 into contact with cam 64 while moving away from the rest position.
- a retaining device 68 comprises an annular groove 70 formed on the outside of wall 44; and a number of balls 71, which are movable inside respective radial through holes 72 in sleeve 29 : when mass 27 is in the idle position, balls 71 are retained by a truncated-cone-shaped lead-in surface 73 of mass 27 in a locked position ( Figure 7) engaging groove 70. On moving into the work position ( Figure 8), mass 27 releases balls 71, which are pushed radially out of groove 70 by the axial thrust of body 39 moving away from its rest position.
- cam followers 65 are brought into contact with cam 64 to move slides 51 into the forward position to pierce walls 59.
- body 39 takes with it through opening 10 both cylinders 25 and bag 24, which is inflated with the gas flowing along channels 60 and passage 52 as countermeasure 1 sinks into the sea.
- bag 24 tends to float, whereas countermeasure 1 sinks gradually into the sea.
- Cable 41 is unwound gradually until it eventually becomes taut to prevent countermeasure 1 from sinking further.
- bag 24 and cable 41 sustain the electronic devices at the depth reached, which may be determined beforehand, e.g. by calibrating the length of cable 41.
- Activation takes place, i.e. inflation commences as walls 59 break, a few hundredths of a second from impact of countermeasure 1 with the sea, and portion 2 is stabilized at the predetermined depth in a few seconds.
- the electronic devices of portion 2 are activated to simulate the decoy. This may be achieved, for example, by axial pull of body 38, in turn pulled by cable 41 as it is tautened to sustain countermeasure 1.
- Float 4 therefore provides for positioning portion 2 and the electronic devices at a precise predetermined depth, which remains constant long enough to effectively simulate the decoy.
- countermeasure 1 is flown rapidly to the precise immersion point in the sea by exploiting the full maximum range of the launch system.
- Float 4 operates reliably and safely by being fully mechanical: inflation of bag 24 is commanded by energy accumulated in springs 48, and which is only transferred to body 39 and by cam 64 to slides 51 upon mass 27 leaving the idle position.
- float 4 Having no explosive or electrical or electronic parts, float 4 requires no additional protection from the outside environment, involves no particular safety precautions for storage, and maintenance is limited to simply replacing the seals in passage 52 and checking bag 24. Moreover, float 4 is much cheaper to produce than known electromechanically activated types.
- float 4 is designed to withstand acceleration during launching, and is prevented from being activated at the launch stage by device 20 and shoulders 34, 36.
- Float 4 may also be used for devices air-launched into the sea and other than countermeasure 1, e.g. rescue devices, bathythermographic buoys, acoustic monitoring or radiated-noise detection buoys, and depth sonar.
- rescue devices e.g. rescue devices, bathythermographic buoys, acoustic monitoring or radiated-noise detection buoys, and depth sonar.
- flaps 15 may be opened aerodynamically or by the launch tube.
- Slides 51 may be defined by movable closing and sealing members, as opposed to piercing members.
- Bag 24 may only come partly out of casing 6 when inflated; and cable 41 may connect portion 2 to float 4, in the event portion 2 is detachable from float 4.
- cylinders 25 may be fixed to casing 6 and communicate by tube with bag 24; and/or mass 27 may produce movement of cam 64, as opposed to movement of body 39 and, hence, cam followers 65 along axis 3.
- Body 39 may be retained in the rest position directly by the inertial mass, as opposed to via the interposition of device 68; and/or the inertial mass may be rotary as opposed to sliding.
- Retention by shoulders 36 may be performed directly on mass 27, to retain mass 27 in the idle position, without moving rods 32 or compressing springs 33; and/or device 20 may be separate from flaps 15.
- cylinders 25 may be replaced with gas generators which, when activated, generate pressurized gas by chemical reaction or combustion; and/or an explosive charge or other activatable means may be provided to connect cylinders 25 to bag 24 upon immersion.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Catching Or Destruction (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Toys (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07150497.1A EP1902938B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für ein in das Meer abgeworfene, luftfahrzeuggestützte Vorrichtung, insbesondere für eine Gegenmaßnahme |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07150497.1A EP1902938B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für ein in das Meer abgeworfene, luftfahrzeuggestützte Vorrichtung, insbesondere für eine Gegenmaßnahme |
EP20060425607 EP1894834B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für eine auf dem Luftweg ins Meer geschossene Vorrichtung, insbesondere für ein Gegenmaßnahmemittel |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060425607 Division-Into EP1894834B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für eine auf dem Luftweg ins Meer geschossene Vorrichtung, insbesondere für ein Gegenmaßnahmemittel |
EP20060425607 Division EP1894834B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für eine auf dem Luftweg ins Meer geschossene Vorrichtung, insbesondere für ein Gegenmaßnahmemittel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1902938A2 true EP1902938A2 (de) | 2008-03-26 |
EP1902938A3 EP1902938A3 (de) | 2008-04-16 |
EP1902938B1 EP1902938B1 (de) | 2015-08-05 |
Family
ID=38137431
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07150497.1A Active EP1902938B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für ein in das Meer abgeworfene, luftfahrzeuggestützte Vorrichtung, insbesondere für eine Gegenmaßnahme |
EP20060425607 Active EP1894834B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für eine auf dem Luftweg ins Meer geschossene Vorrichtung, insbesondere für ein Gegenmaßnahmemittel |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060425607 Active EP1894834B1 (de) | 2006-09-01 | 2006-09-01 | Schwimmer für eine auf dem Luftweg ins Meer geschossene Vorrichtung, insbesondere für ein Gegenmaßnahmemittel |
Country Status (1)
Country | Link |
---|---|
EP (2) | EP1902938B1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150191231A1 (en) * | 2012-09-24 | 2015-07-09 | Korea Institute Of Ocean Scienec & Technology | Radar reflector operating device for indicating emergency position |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101857069B (zh) * | 2010-02-24 | 2012-11-28 | 中国船舶重工集团公司第七一○研究所 | 惯性分离接头 |
CN112849369B (zh) * | 2021-02-02 | 2022-04-05 | 中科探海(深圳)海洋科技有限责任公司 | 船用深海探测装置抛放器 |
CN114604365A (zh) * | 2022-03-07 | 2022-06-10 | 湖北蓝砚智能科技有限公司 | 一种自动释放式北斗示位浮标 |
CN114485805B (zh) * | 2022-04-18 | 2022-06-24 | 青岛道万科技有限公司 | 用于Argo浮标的温盐深测量仪及其方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5341718A (en) | 1993-08-19 | 1994-08-30 | The United States Of America As Represented By The Secretary Of The Navy | Launched torpedo decoy |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3613944A (en) * | 1969-12-05 | 1971-10-19 | Gen Motors Corp | Sensor and fragmentizable glass means for releasing a penetrator |
US3638501A (en) * | 1970-04-27 | 1972-02-01 | Gen Motors Corp | Sensor |
US3859650A (en) * | 1973-11-29 | 1975-01-07 | Gen Motors Corp | Acceleration-responsive sensor with readiness indicator circuit |
US4044684A (en) * | 1976-07-13 | 1977-08-30 | Federal Laboratories, Inc. | Aerosol projectile for lachrymating material |
CA2082330A1 (en) * | 1991-11-09 | 1993-05-10 | Hang Sup Ohm | Air bag type of passenger protectors for protecting passengers from being injured in a vehicle collision |
KR100241145B1 (ko) * | 1997-09-13 | 2000-03-02 | 노대성 | 스티어링휠 내장형 에어백 시스템 |
CA2326432C (en) * | 1998-04-03 | 2007-12-11 | Special Cartridge Company Limited | Safety system for a projectile fuse |
US5973994A (en) * | 1998-04-20 | 1999-10-26 | The United States Of America As Represented By The Secretary Of The Navy | Surface launched sonobuoy |
GB0111171D0 (en) * | 2001-05-08 | 2001-06-27 | Special Cartridge Company Ltd | Projictile |
-
2006
- 2006-09-01 EP EP07150497.1A patent/EP1902938B1/de active Active
- 2006-09-01 EP EP20060425607 patent/EP1894834B1/de active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5341718A (en) | 1993-08-19 | 1994-08-30 | The United States Of America As Represented By The Secretary Of The Navy | Launched torpedo decoy |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150191231A1 (en) * | 2012-09-24 | 2015-07-09 | Korea Institute Of Ocean Scienec & Technology | Radar reflector operating device for indicating emergency position |
US9273937B2 (en) * | 2012-09-24 | 2016-03-01 | Korea Institute Of Ocean Science & Technology | Radar reflector operating device for indicating emergency position |
Also Published As
Publication number | Publication date |
---|---|
EP1894834B1 (de) | 2014-12-31 |
EP1894834A1 (de) | 2008-03-05 |
EP1902938B1 (de) | 2015-08-05 |
EP1902938A3 (de) | 2008-04-16 |
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