EP2022715A1 - Submarine countermeasure launching device - Google Patents
Submarine countermeasure launching device Download PDFInfo
- Publication number
- EP2022715A1 EP2022715A1 EP07425452A EP07425452A EP2022715A1 EP 2022715 A1 EP2022715 A1 EP 2022715A1 EP 07425452 A EP07425452 A EP 07425452A EP 07425452 A EP07425452 A EP 07425452A EP 2022715 A1 EP2022715 A1 EP 2022715A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- pressurized
- shutter
- shaped body
- cylinder
- 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
- 239000007789 gas Substances 0.000 description 32
- 239000002184 metal Substances 0.000 description 10
- 238000005192 partition Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001681 protective 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
- 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
- B63G8/28—Arrangement of offensive or defensive equipment
- B63G8/30—Arrangement of offensive or defensive equipment of artillery or missile launching means
Definitions
- the present invention relates to a submarine countermeasure launching device.
- Countermeasure (Jammer or Decoy) launching devices comprising a launch tube housing the countermeasure; a cylinder of pressurized gas; and a feed system for feeding the gas from the cylinder to the launch tube.
- the gas feed system comprises a shutter movable between a closed position closing at least one feed opening in the feed system to prevent pressurized-gas flow from the cylinder to the launch tube, and an open position allowing pressurized-gas flow through the feed opening to the launch tube.
- the countermeasure be distanced as far and as fast as possible from the launch tube.
- the device 1 ( Figures 1 and 2 ) comprises a launch tube 2 for a countermeasure 3 (e.g. a known. Jammer or Decoy); a cylinder 5 of high-pressure gas; and a feed system 7 for feeding gas from the cylinder to launch tube 2.
- a countermeasure 3 e.g. a known. Jammer or Decoy
- a cylinder 5 of high-pressure gas e.g. a known. Jammer or Decoy
- a feed system 7 for feeding gas from the cylinder to launch tube 2.
- launch tube 2 defines an inner cylindrical cavity 8 ( Figure 1 ) coaxial with an axis 9, and comprises a rear portion 8p connected to feed system 7, and a front portion 8a having a launch opening 12 closable by a partition 13 crosswise to axis 9. Partition 13 thus closes cylindrical cavity 8, so countermeasure 3 can be immersed in a protective liquid (not shown) flooding cavity 8; and partition 13 is shattered when countermeasure 3 is fired.
- Feed system 7 defines an inlet (detailed below); and an outlet 14 which communicates with, to feed pressurized gas into, cylindrical cavity 8.
- Feed system 7 comprises a number of known safety valves 16 (not described in detail) for preventing accidental firing of countermeasure 3.
- Feed system 7 is formed inside a metal body 18, coaxial with axis 9, and comprising a front portion connected to launch tube 2, and a rear portion to which cylinder 5 is fitted.
- the rear portion of body 18 has a cylindrical seat 20 coaxial with axis 9 and bounded laterally by an internally threaded annular wall 21.
- Cylindrical seat 20 is also bounded by a flat wall 22 perpendicular to axis 9, and in which is formed a cylindrical cavity 24 coaxial with axis 9 and defining an inlet of feed system 7.
- Cylindrical cavity 24 communicates with a feed conduit 26 formed inside metal body 18 and for feeding pressurized gas to outlet 14 via safety valves 16. Cylindrical cavity 24 has a constant radius R, and the inlet of feed conduit 26 is smaller across than the diameter 2R of cylindrical cavity 24.
- a metal ring 27 rests on an end surface of cavity 24, and defines a circular opening 28 through which pressurized gas flows from cylindrical cavity 24 into feed conduit 26.
- Opening 28 is normally closed by a shutter 30 which, in a work position, presses against metal ring 27 to cut off pressurized-gas flow.
- Shutter 30 comprises a cup-shaped body 31 which slides axially along a support 32 housed inside cavity 24, detached radially from the walls of cavity 24, and supported by flanges 34 extending radially from an end portion of support 32 to a tubular sleeve 35 interposed between metal body 18 and cylinder 5.
- Tubular sleeve 35 permits pressurized-gas flow from cylinder 5 to cylindrical cavity 24.
- support 32 comprises a first cylindrical portion 36 coaxial with axis 9 and of radius L1; and a second cylindrical portion 37 integral with portion 36, coaxial with axis 9, and of a larger radius L2 than radius L1.
- Second cylindrical portion 37 has an inner cylindrical cavity 38 opening outwards of support 32 and communicating with a conduit 39 extending the whole length of first cylindrical portion 36 and coaxial with axis 9. Second cylindrical portion 37 is positioned facing metal ring 27.
- Cup-shaped body 31 comprises a tubular portion 40 fitted to second cylindrical portion 37 and an end wall 42 integral with portion 40 and having an isosceles-trapezium-shaped cross section.
- the side of the isosceles trapezium thus defines an annular bevel 43 of cup-shaped body 31, which rests on metal ring 27 to close opening 28.
- Shutter 30 also comprises a helical spring 45 interposed between cup-shaped body 31 and support 32. More specifically, helical spring 45 has a first end housed in cavity 38, and a second end portion which presses against the inner side of wall 42.
- Cup-shaped body 31 and the second cylindrical portion internally define a variable-volume chamber 47 communicating with conduit 39.
- a labyrinth seal system 48 allowing passage of a limited amount of gas, is formed between the outer surface of second cylindrical portion 37 and the inner wall of tubular portion 40.
- Cylinder 5 comprises an end portion 5f screwed to wall 21 of metal body 18, and defines an inner cavity 50 communicating with cylindrical cavity 24; and conduit 39 communicates with a tube 52 extending through cavity 50, coaxially with axis 9.
- variable-volume chamber 47 In use, at rest, high-pressure gas (normally compressed air or nitrogen, possibly at over 300 bar pressure) is contained inside cylindrical cavity 24, and exerts pressure on the walls of cup-shaped body 31; and the pressure inside variable-volume chamber 47 equals the pressure inside cylindrical cavity 24, i.e. outside chamber 47, by virtue of the pressurized gas seeping into variable-volume chamber 47 through seal system 48.
- high-pressure gas normally compressed air or nitrogen, possibly at over 300 bar pressure
- spring 45 keeps bevel 43 resting firmly on metal ring 27, and, hence, shutter 30 in a stable closed position closing circular opening 28 and preventing gas flow from cylinder 5 to launch tube 2.
- variable-volume chamber 47 is depressurized by drawing off pressurized gas along conduit 39 and tube 52.
- the pressure in chamber 47 falls rapidly to well below the pressure in cylindrical cavity 24; by virtue of the difference in pressure between the inside and outside of chamber 47, the pressure on cup-shaped body 31 pushes it axially towards support 32 in opposition to spring 45, thus compressing the spring and also reducing the volume of chamber 47; and bevel 43 is detached from metal ring 27, thus moving shutter 30 into an open position (not shown) in which pressurized gas flows from cylinder 5 to launch tube 2 to launch countermeasure 3.
- Shutter 30 is thus opened easily despite the high pressure of the gas inside cylinder 5.
- the high pressure in fact, actually assists in moving cup-shaped body 31 and so opening shutter 30 rapidly.
- Countermeasure launching device 1 also comprises an exhaust valve 60 ( Figures 4, 5 ) connected at the inlet to the outlet of tube 52 to exhaust pressurized gas from, and so depressurize, chamber 47.
- Valve 60 is conveniently formed in a disk-shaped body 62 fitted to a rear portion of cylinder 5.
- Valve 60 comprises a shaft 64 housed inside a substantially cylindrical cavity 66 and coaxial with the axis 67 of cylindrical cavity 66.
- Shaft 64 is movable axially between a first closed position ( Figure 4 ), in which valve 60 intercepts the compressed air from tube 52, and an open position ( Figure 5 ), in which valve 60 allows compressed-air flow from chamber 47 to the outside of launching device 1 thus actuating depressurization as described above.
- Shaft 64 comprises a first cylindrical portion 64a, having diameter T1, connected by a bevelled portion 64f to a second cylindrical portion 64b of diameter T2 larger than T1.
- second cylindrical portion 64b is integral with a wider portion 69, on which a cam profile 68 is formed.
- Shaft 64 has an inner cavity 70 coaxial with axis 67 and communicating with the outside of shaft 64 through a first number of holes 72 opening in the surface of portion 64a, close to bevelled portion 64f.
- Inner cavity 70 also communicates with the outside of shaft 64 through a second number of holes 74 formed in the surface of portion 64b and spaced axially apart from holes 72.
- Shaft 64 is partly surrounded by a seal 76 located between cylindrical cavity 66 and the outer surface of shaft 64.
- Seal 76 comprises portions contacting cylindrical portions 64a and 64b to form a gas seal with shaft 64, and also comprises a sunken portion detached from the surface of the shaft and defining a toroidal chamber 80 surrounding the shaft at the join between portions 64a and 64b.
- the pressurized gas from tube 52 is fed into toroidal chamber 80 through holes 82 formed through seal 76.
- the pressurized gas thus acts on cylindrical portion 64a of diameter T1, and on cylindrical portion 64b of diameter T2. And, since the outer surface of portion 64b on which the pressurized gas acts is greater than the outer surface of portion 64a, because of the difference in diameter, portions 64a and 64b are subjected to forces whose resultant moves the shaft axially in the direction indicated by the arrow in Figures 4 and 5 and extending from portion 64a to portion 64b.
- Cam profile 68 mates with a complementary cam profile formed on a sprocket 84 rotated about axis 67 by an electric motor 85 positioned with its axis parallel to axis 67 and housed inside a cavity formed in body 62 and parallel to cylindrical cavity 66. More specifically, a transmission 100 is interposed between sprocket 84 and the output shaft 85b ( Figure 4 ) of electric motor 85, and comprises a first gear 101 fitted to output shaft 85b of electric motor 85, and a second gear 102 fitted to rotating element 84, coaxially with axis 67.
- Electric motor 85 rotates rotating element 84, with respect to cam profile 68, between two limit angular positions:
- shaft 64 When allowed by the setting of rotating element 84, shaft 64 is moved from the first to the second axial position by the pressure difference referred to above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Pipe Accessories (AREA)
- Paper (AREA)
- Manufacturing Of Electric Cables (AREA)
- Sealing Devices (AREA)
- Sliding Valves (AREA)
Abstract
Description
- The present invention relates to a submarine countermeasure launching device.
- Countermeasure (Jammer or Decoy) launching devices are known comprising a launch tube housing the countermeasure; a cylinder of pressurized gas; and a feed system for feeding the gas from the cylinder to the launch tube.
- The gas feed system comprises a shutter movable between a closed position closing at least one feed opening in the feed system to prevent pressurized-gas flow from the cylinder to the launch tube, and an open position allowing pressurized-gas flow through the feed opening to the launch tube.
- In the closed position, the pressurized gas from the valve presses on the movable parts of the shutter.
- Currently used launching systems employ extremely high-pressure gas (of 300 bars and more) to maximize acceleration of the countermeasure as it leaves the launch tube.
- For effectiveness and safety, in fact, it is essential that the countermeasure be distanced as far and as fast as possible from the launch tube.
- Using high-pressure gas, however, poses problems related to the opening, on account of the high pressure exerted by the pressurized gas from the valve on the movable parts of the shutter in the closed position.
- This makes the valve difficult to open, and considerable force must be exerted on it to overcome the pressure exerted by the pressurized gas.
- It is an object of the present invention to provide a countermeasure launching device designed to permit fast, easy opening of the shutter, even in the presence of high-pressure gas.
- According to the present invention, there is provided a countermeasure launching device as claimed in Claim 1.
- A preferred, non-limiting embodiment of the invention will be described by way of example with particular reference to the accompanying drawings, in which:
-
Figure 1 shows a longitudinal section of a countermeasure launching device in accordance with the teachings of the present invention; -
Figure 2 shows a side view of theFigure 1 device; -
Figure 3 shows a larger-scale longitudinal section of a portion of theFigure 1 device; -
Figures 4 and 5 show details of theFigure 1 device. - The device 1 (
Figures 1 and 2 ) comprises alaunch tube 2 for a countermeasure 3 (e.g. a known. Jammer or Decoy); acylinder 5 of high-pressure gas; and afeed system 7 for feeding gas from the cylinder to launchtube 2. - More specifically, launch tube 2 (known) defines an inner cylindrical cavity 8 (
Figure 1 ) coaxial with anaxis 9, and comprises arear portion 8p connected tofeed system 7, and afront portion 8a having a launch opening 12 closable by apartition 13 crosswise toaxis 9.Partition 13 thus closescylindrical cavity 8, socountermeasure 3 can be immersed in a protective liquid (not shown)flooding cavity 8; andpartition 13 is shattered whencountermeasure 3 is fired. -
Feed system 7 defines an inlet (detailed below); and anoutlet 14 which communicates with, to feed pressurized gas into,cylindrical cavity 8. -
Feed system 7 comprises a number of known safety valves 16 (not described in detail) for preventing accidental firing ofcountermeasure 3. -
Feed system 7 is formed inside ametal body 18, coaxial withaxis 9, and comprising a front portion connected tolaunch tube 2, and a rear portion to whichcylinder 5 is fitted. - More specifically (
Figure 3 ), the rear portion ofbody 18 has acylindrical seat 20 coaxial withaxis 9 and bounded laterally by an internally threadedannular wall 21. -
Cylindrical seat 20 is also bounded by aflat wall 22 perpendicular toaxis 9, and in which is formed acylindrical cavity 24 coaxial withaxis 9 and defining an inlet offeed system 7. -
Cylindrical cavity 24 communicates with afeed conduit 26 formed insidemetal body 18 and for feeding pressurized gas tooutlet 14 viasafety valves 16.Cylindrical cavity 24 has a constant radius R, and the inlet offeed conduit 26 is smaller across than the diameter 2R ofcylindrical cavity 24. - A
metal ring 27 rests on an end surface ofcavity 24, and defines acircular opening 28 through which pressurized gas flows fromcylindrical cavity 24 intofeed conduit 26. -
Opening 28 is normally closed by ashutter 30 which, in a work position, presses againstmetal ring 27 to cut off pressurized-gas flow. - Shutter 30 comprises a cup-
shaped body 31 which slides axially along a support 32 housed insidecavity 24, detached radially from the walls ofcavity 24, and supported byflanges 34 extending radially from an end portion of support 32 to atubular sleeve 35 interposed betweenmetal body 18 andcylinder 5.Tubular sleeve 35 permits pressurized-gas flow fromcylinder 5 tocylindrical cavity 24. - More specifically, support 32 comprises a first
cylindrical portion 36 coaxial withaxis 9 and of radius L1; and a secondcylindrical portion 37 integral withportion 36, coaxial withaxis 9, and of a larger radius L2 than radius L1. - Second
cylindrical portion 37 has an innercylindrical cavity 38 opening outwards of support 32 and communicating with aconduit 39 extending the whole length of firstcylindrical portion 36 and coaxial withaxis 9. Secondcylindrical portion 37 is positioned facingmetal ring 27. - Cup-
shaped body 31 comprises atubular portion 40 fitted to secondcylindrical portion 37 and an end wall 42 integral withportion 40 and having an isosceles-trapezium-shaped cross section. - The side of the isosceles trapezium thus defines an
annular bevel 43 of cup-shaped body 31, which rests onmetal ring 27 to close opening 28. - Shutter 30 also comprises a
helical spring 45 interposed between cup-shaped body 31 and support 32. More specifically,helical spring 45 has a first end housed incavity 38, and a second end portion which presses against the inner side of wall 42. - Cup-
shaped body 31 and the second cylindrical portion internally define a variable-volume chamber 47 communicating withconduit 39. - A
labyrinth seal system 48, allowing passage of a limited amount of gas, is formed between the outer surface of secondcylindrical portion 37 and the inner wall oftubular portion 40. -
Cylinder 5 comprises anend portion 5f screwed towall 21 ofmetal body 18, and defines aninner cavity 50 communicating withcylindrical cavity 24; andconduit 39 communicates with atube 52 extending throughcavity 50, coaxially withaxis 9. - In use, at rest, high-pressure gas (normally compressed air or nitrogen, possibly at over 300 bar pressure) is contained inside
cylindrical cavity 24, and exerts pressure on the walls of cup-shaped body 31; and the pressure inside variable-volume chamber 47 equals the pressure insidecylindrical cavity 24, i.e. outside chamber 47, by virtue of the pressurized gas seeping into variable-volume chamber 47 throughseal system 48. - In this condition,
spring 45 keepsbevel 43 resting firmly onmetal ring 27, and, hence,shutter 30 in a stable closed position closingcircular opening 28 and preventing gas flow fromcylinder 5 to launchtube 2. - To open
shutter 30, variable-volume chamber 47 is depressurized by drawing off pressurized gas alongconduit 39 andtube 52. - The pressure in chamber 47 falls rapidly to well below the pressure in
cylindrical cavity 24; by virtue of the difference in pressure between the inside and outside of chamber 47, the pressure on cup-shaped body 31 pushes it axially towards support 32 in opposition tospring 45, thus compressing the spring and also reducing the volume of chamber 47; andbevel 43 is detached frommetal ring 27, thus movingshutter 30 into an open position (not shown) in which pressurized gas flows fromcylinder 5 to launchtube 2 to launchcountermeasure 3. - Shutter 30 is thus opened easily despite the high pressure of the gas inside
cylinder 5. The high pressure, in fact, actually assists in moving cup-shaped body 31 and so openingshutter 30 rapidly. - Once
countermeasure 3 is launched leavingcylinder 5 empty, the difference in pressure is eliminated, andspring 45 restoresshutter 30 to the closed position described above, after which,cylinder 5 can be refilled. - Countermeasure launching device 1 also comprises an exhaust valve 60 (
Figures 4, 5 ) connected at the inlet to the outlet oftube 52 to exhaust pressurized gas from, and so depressurize, chamber 47. - Valve 60 is conveniently formed in a disk-
shaped body 62 fitted to a rear portion ofcylinder 5. - Valve 60 comprises a
shaft 64 housed inside a substantiallycylindrical cavity 66 and coaxial with theaxis 67 ofcylindrical cavity 66. -
Shaft 64 is movable axially between a first closed position (Figure 4 ), in which valve 60 intercepts the compressed air fromtube 52, and an open position (Figure 5 ), in which valve 60 allows compressed-air flow from chamber 47 to the outside of launching device 1 thus actuating depressurization as described above. -
Shaft 64 comprises a firstcylindrical portion 64a, having diameter T1, connected by a bevelledportion 64f to a secondcylindrical portion 64b of diameter T2 larger than T1. - The end of second
cylindrical portion 64b is integral with awider portion 69, on which acam profile 68 is formed. -
Shaft 64 has aninner cavity 70 coaxial withaxis 67 and communicating with the outside ofshaft 64 through a first number ofholes 72 opening in the surface ofportion 64a, close to bevelledportion 64f.Inner cavity 70 also communicates with the outside ofshaft 64 through a second number ofholes 74 formed in the surface ofportion 64b and spaced axially apart fromholes 72. -
Shaft 64 is partly surrounded by aseal 76 located betweencylindrical cavity 66 and the outer surface ofshaft 64.Seal 76 comprises portions contactingcylindrical portions shaft 64, and also comprises a sunken portion detached from the surface of the shaft and defining atoroidal chamber 80 surrounding the shaft at the join betweenportions - The pressurized gas from
tube 52 is fed intotoroidal chamber 80 throughholes 82 formed throughseal 76. - The pressurized gas thus acts on
cylindrical portion 64a of diameter T1, and oncylindrical portion 64b of diameter T2. And, since the outer surface ofportion 64b on which the pressurized gas acts is greater than the outer surface ofportion 64a, because of the difference in diameter,portions Figures 4 and 5 and extending fromportion 64a toportion 64b. -
Cam profile 68 mates with a complementary cam profile formed on asprocket 84 rotated aboutaxis 67 by anelectric motor 85 positioned with its axis parallel toaxis 67 and housed inside a cavity formed inbody 62 and parallel tocylindrical cavity 66. More specifically, atransmission 100 is interposed betweensprocket 84 and theoutput shaft 85b (Figure 4 ) ofelectric motor 85, and comprises afirst gear 101 fitted tooutput shaft 85b ofelectric motor 85, and asecond gear 102 fitted to rotatingelement 84, coaxially withaxis 67. -
Electric motor 85 rotates rotatingelement 84, with respect tocam profile 68, between two limit angular positions: - a first angular position, in which rotating
element 84contacts cam profile 68 to setshaft 64 to a stable first axial position in whichholes Figure 4 ); this position corresponds to closure of valve 60, by preventing outflow of the compressed gas fromtoroidal chamber 80 andinner cavity 70, and by contact between the rotating element andcam profile 68 preventing axial movement ofshaft 64, despite the force exerted onshaft 64; and - a second angular position (
Figure 5 ), in which rotatingelement 84contacts cam profile 68 to setshaft 64 to a second axial position in whichholes 72 facetoroidal chamber 80, andholes 74face openings 110 formed inseal 76 and communicating with the outside of valve 60; this axial position corresponds to opening valve 60, in that the compressed gas insidetoroidal chamber 80 flows intoinner cavity 70, and from there out of valve 60 throughholes 74 and throughopenings 110 communicating with the outside of valve 60. - When allowed by the setting of rotating
element 84,shaft 64 is moved from the first to the second axial position by the pressure difference referred to above.
Claims (12)
- A submarine countermeasure launching device comprising a launch tube (2) for launching a countermeasure (3); a cylinder (5) of pressurized gas; and a feed system (7) for feeding gas from the cylinder to the launch tube (2); said feed system comprising a shutter (30) movable between an open position, and a closed position closing at least one feed opening (28) of the feed system to prevent pressurized-gas flow from said cylinder (5) to said launch tube (2);
characterized in that said shutter (30) comprises a supporting body (32), and a shaped body (31) which slides with respect to said supporting body (32) and has an end portion (42) for closing said feed opening (28); an inner chamber (47) having variable volume and being defined by at least part of said shaped body and at least part of said supporting body;
said shutter (30) being housed in a seat (24) into which pressurized gas from said cylinder is fed so that the gas exerts pressure on at least part of said shaped body (31);
said launching device also comprising exhaust means (60) for depressurizing said chamber, so that the difference between the gas pressure and the pressure inside said chamber produces a force which slides said shaped body (31) on said supporting body (32) and opens said shutter. - A device as claimed in Claim 1, wherein the shutter (30) has elastic means (45) for moving the shutter into said closed position.
- A device as claimed in Claim 2, wherein said elastic means (45) are interposed between said supporting body (32) and said shaped body (31).
- A device as claimed in Claim 3, wherein said elastic means comprise at least a spring (45) housed in said variable-volume chamber (47).
- A device as claimed in Claim 4, wherein said spring (45) has a first end portion fitted to said supporting body (32); and a second end portion which presses against a wall of said shaped body (31).
- A device as claimed in any one of the foregoing Claims, wherein said body is cup-shaped, and comprises a tubular portion (40) mounted in sliding manner on the supporting body (32); and an end wall (42) bounded by an outer surface which rests on edges of said feed opening (28) to close the feed opening.
- A device as claimed in Claim 6, wherein said end wall (42) defines an annular bevel (43) which rests on edges of said feed opening (28) to close the feed opening.
- A device as claimed in any one of the foregoing Claims, wherein a gas seal system (48) is provided between said supporting body (32) and said shaped body (31).
- A device as claimed in any one of the foregoing Claims, wherein said exhaust means comprise a valve (60) which is opened to exhaust pressurized gas from said variable-volume chamber.
- A device as claimed in Claim 9, wherein said valve (60) comprises:- an axially symmetrical, elongated body (64) having a first (64a) and a second (64b) portion of different radial dimensions (T1, T2);- a pressurized-gas containment zone (80) for receiving pressurized gas from said variable-volume chamber; at least part of said first and said second portion (64a, 64b) being located at said pressurized-gas containment zone (80), so that the gas pressure exerts different thrusts on the first and second portion, which have different surface areas;- control means (68, 84) for controlling said elongated body and allowing the force exerted by said pressurized gas to move said elongated body (64) axially between a first closed axial position, closing the valve and preventing outflow of gas from said pressurized-gas containment zone (80), and a second exhaust axial position, in which the gas in said pressurized-gas containment zone (80) is exhausted from said valve (60).
- A device as claimed in Claim 10, wherein said pressurized-gas containment zone (80) is formed in a seal (76) at least partly surrounding said elongated body having axial symmetry (64).
- A device as claimed in Claim 10 or 11, wherein said elongated body (64) has an inner cavity (70) communicating with the outside through first (72) and second (74) openings opening in the lateral surfaces of the elongated body; the first and second openings facing said pressurized-gas containment zone (80) when the elongated body (64) is in said first closed axial position; and, in said second exhaust axial position, the first openings communicating with said pressurized-gas containment zone (80), and the second openings communicating with an outlet of said valve (60) to exhaust said gas through said inner cavity (70).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602007003712T DE602007003712D1 (en) | 2007-07-24 | 2007-07-24 | Submarine countermeasure ejection device |
EP07425452A EP2022715B1 (en) | 2007-07-24 | 2007-07-24 | Submarine countermeasure launching device |
AT07425452T ATE451298T1 (en) | 2007-07-24 | 2007-07-24 | SUBMARINE COUNTERMEASURES DROPPING DEVICE |
SG200805428-0A SG149777A1 (en) | 2007-07-24 | 2008-07-22 | Submarine countermeasure launching device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07425452A EP2022715B1 (en) | 2007-07-24 | 2007-07-24 | Submarine countermeasure launching device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2022715A1 true EP2022715A1 (en) | 2009-02-11 |
EP2022715B1 EP2022715B1 (en) | 2009-12-09 |
Family
ID=39102240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07425452A Active EP2022715B1 (en) | 2007-07-24 | 2007-07-24 | Submarine countermeasure launching device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2022715B1 (en) |
AT (1) | ATE451298T1 (en) |
DE (1) | DE602007003712D1 (en) |
SG (1) | SG149777A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5117731A (en) * | 1991-11-04 | 1992-06-02 | The United States Of America As Represented By The Secretary Of The Navy | Tactical acoustic decoy |
US6386133B1 (en) * | 2000-09-06 | 2002-05-14 | The United States Of America As Represented By The Secretary Of The Navy | Torpedo tube shutter-pressure release |
DE10324180B3 (en) * | 2003-05-28 | 2004-09-30 | Nordseewerke Gmbh | Device used as positioning and starting arrangement for activated effectors in submarines comprises tubular arrangements formed in a container-like component |
US6854409B1 (en) * | 2003-06-06 | 2005-02-15 | The United States Of America As Represented By The Secretary Of The Navy | Rotary electromagnetic launch tube |
EP1580117A2 (en) * | 2004-03-23 | 2005-09-28 | Howaldtswerke-Deutsche Werft GmbH | Method for filling the decoy-startertubes with fluid. |
-
2007
- 2007-07-24 AT AT07425452T patent/ATE451298T1/en not_active IP Right Cessation
- 2007-07-24 DE DE602007003712T patent/DE602007003712D1/en active Active
- 2007-07-24 EP EP07425452A patent/EP2022715B1/en active Active
-
2008
- 2008-07-22 SG SG200805428-0A patent/SG149777A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5117731A (en) * | 1991-11-04 | 1992-06-02 | The United States Of America As Represented By The Secretary Of The Navy | Tactical acoustic decoy |
US6386133B1 (en) * | 2000-09-06 | 2002-05-14 | The United States Of America As Represented By The Secretary Of The Navy | Torpedo tube shutter-pressure release |
DE10324180B3 (en) * | 2003-05-28 | 2004-09-30 | Nordseewerke Gmbh | Device used as positioning and starting arrangement for activated effectors in submarines comprises tubular arrangements formed in a container-like component |
US6854409B1 (en) * | 2003-06-06 | 2005-02-15 | The United States Of America As Represented By The Secretary Of The Navy | Rotary electromagnetic launch tube |
EP1580117A2 (en) * | 2004-03-23 | 2005-09-28 | Howaldtswerke-Deutsche Werft GmbH | Method for filling the decoy-startertubes with fluid. |
Also Published As
Publication number | Publication date |
---|---|
EP2022715B1 (en) | 2009-12-09 |
SG149777A1 (en) | 2009-02-27 |
ATE451298T1 (en) | 2009-12-15 |
DE602007003712D1 (en) | 2010-01-21 |
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