• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an infrared camouflaging device (1) and vehicle comprising such a device comprising a network of parallel pipes (4,6) carrying a heat transfer fluid (20) intended to modify the thermal signature of a vehicle, a device ( 1) characterized in that it comprises a supply manifold (3) at which the coolant (20) enters the device (1) to be conveyed to an intermediate manifold (5) by means of a first series first ducts (4) integral with the supply manifold (3) at their first end (4a) and the intermediate manifold (5) at their second end (4b), a second series (6) of second ducts (6a) conveys the coolant (20) of the intermediate manifold (5) to an outlet manifold (7) for discharging the fluid (20) out of the device (1), second pipes (6) which are integral with the intermediate manifold (5) by their first end (6a) and the outlet manifold (7) by their second end (6b), each first duct (4) being located in the vicinity of a second duct (6) so as to form at the device (1) a alternating first (4) and second (6) parallel pipes, the manifold (3) supply and the outlet manifold (5) being adjacent to each other.
    公开号:FR3028025A1
    申请号:FR1402477
    申请日:2014-10-30
    公开日:2016-05-06
    发明作者:Michel Brun
    申请人:Nexter Systems；
    IPC主号:
    专利说明:

    [0001] The technical field of the invention is that of thermal camouflage devices fixed on the walls of a vehicle. In order to modify the thermal signature of a military vehicle in order to conceal it from the perception of infrared detectors, it is known from patent US5751006 to place on the outside of a vehicle, in this case a ship, panels able to provide this masking function. Each panel has in its upper part 10 a first heat transfer fluid collector through which the fluid enters the panel. In its part located at the bottom of the panel is located a second fluid collector for recovering the fluid from the first collector. Each manifold is connected to the other by parallel pipes between them in which the coolant flows from the first manifold to the second manifold. The manifolds are connected to means for cooling or heating the fluid located on board the vehicle as well as means for circulating the fluid. Thus, for example, the fluid will enter the first manifold at a temperature deemed to represent the thermal environment of the vehicle and will flow into the pipes, thus masking the vehicle signature. During the entire fluid flow in the device, it will exchange calories with the environment of the device. This results in a temperature gradient at the level of the device, gradient having the disadvantage of forming a singularity that is very recognizable in the thermal image restored by possible infrared detectors. The invention aims to solve this problem of thermal discretion by providing homogeneous masking. According to a particular embodiment of the invention also allows to keep a satisfactory operation in case of physical degradation of the device.
    [0002] The invention relates to an infrared camouflage device comprising a network of parallel pipes carrying a coolant intended to modify the thermal signature of a vehicle, characterized in that it comprises a supply manifold at which the heat transfer fluid enters. in the device to be conveyed to an intermediate manifold by means of a first series of first pipes secured to the supply manifold at their first end and the intermediate manifold at their second end, a second series of second pipes conveys the heat transfer fluid from the intermediate manifold to an outlet manifold for discharging the fluid out of the device, second pipes which are secured to the intermediate manifold by their first end and the outlet manifold by their second end, each first pipe being located in the vicinity of a second analization so as to form at the device an alternation of first and second parallel pipes, the supply manifold and the outlet manifold being adjacent to one another. Advantageously, the distribution of the pipes and collectors is substantially in the same plane and makes it possible to give the device the shape of a panel. Advantageously, the pipes and collectors are embedded in a substrate that homogenizes the thermal signature of the device. Advantageously, the substrate comprises two walls between which are located the pipes, the first wall is intended to be oriented towards an external face of the vehicle and comprises a material promoting thermal insulation, a reflecting film with low thermal emissivity is arranged on the face of this wall intended to be oriented towards the vehicle, the second wall comprises a material promoting thermal conduction and the face of the second wall which is oriented towards the outside of the vehicle comprises a conductive metal film. Advantageously, the material of the first wall promoting the thermal insulation comprises polyurethane foam. Advantageously, the material of the second wall promoting thermal conduction comprises an aluminum alloy. According to a particular embodiment, each end of each pipe may include a check valve tared so as to close the pipe in case of rupture thereof. Advantageously, each valve may comprise a spring blade located in a collector and secured by one of its edges near the end of the pipe to be closed. The invention also relates to a military vehicle comprising a means of thermal regulation of a heat-transfer fluid and circulation of this fluid, thermal regulation means and circulation connected to at least one thermal camouflage device according to the invention, device which is disposed on at least one outer face of the vehicle. The invention will be better understood on reading the following description, which description is made with reference to the appended drawings, in which: FIG. 1 represents a schematic perspective view of a vehicle comprising a device according to the invention. FIG. 2 represents a front view of a device according to a first embodiment of the invention. FIG. 3 represents a view from above of a device according to the invention.
    [0003] FIG. 4 represents a cross-sectional view of a device according to the invention, seen along the sectional plane whose track AA is marked in FIG. 2. FIG. 5 represents a schematic view of a detail of a device according to FIG. a second embodiment of the invention. FIG. 6 represents a schematic view of the detail of the device according to this second mode, during the cutting of a pipe. According to FIG. 1, a military vehicle 100 has, on its outer vertical walls 101, at least one camouflage device 1 according to the invention, intended to camouflage parts of the vehicle 100 which emit a sharp infrared radiation with the thermal signature. from the rest of the vehicle and the environment. It can be seen in FIG. 1 that the vehicle has two devices 1 in the form of panels on a side wall. According to FIGS. 2 and 3, a camouflage device 1 according to a first embodiment is connected to a heat transfer fluid transport circuit 2 located on board the vehicle. The circuit 2 incorporates means (not shown) allowing pressurized circulation of the fluid 20 in the device 1 as well as means (not shown) for regulating the fluid temperature (air conditioning unit). The coolant 20 may for example be a mixture of glycol and water. The circuit 2 arrives at a level 30 of a supply manifold 3 of the device 1. This collector, like all those mentioned in the rest of the text, is a tubular structure, made of metal for example, or even of plastic material for more lightness.
    [0004] This supply manifold 3 is connected to a first series of first pipes 4 parallel to each other. The first pipes 4 of this first series are connected by their first ends 4a to the supply manifold 3 so as to transport the heat transfer fluid 20 into an intermediate manifold 5. A second series of second pipes 6, which are parallel to the first pipes 4, is connected to the intermediate manifold 5 by the first ends 6a 10 of the second pipes 6. The second ends 6b of the second pipes 6 of the second series are connected to an outlet manifold 7 so as to convey the heat transfer fluid 20 of the intermediate manifold 5 in the outlet manifold 7. The outlet manifold 7 is connected to the fluid transport circuit 2. The first ducts 4 are distributed equally over the length of the manifolds 3 and 5. Between two first pipes 4 of the first Series 20 is a second line 6 of the second series. The second pipes 6 are distributed equally over the entire length of the collectors. The pipes 4 and 6 thus arranged form an alternation of first and second pipes 4 and 6. Each pipe 4 or 6 will therefore be traversed by a flow of fluid flowing in the opposite direction of the flow of the adjacent pipe 4 or 6. The collector 3 is located in the vicinity of the outlet manifold 7. During its entire path in the device, the heat transfer fluid 20 will, depending on the desired effect, either absorb or restore calories to the pipes and collectors of the device, calories which will be broadcast in the external environment.
    [0005] In the remainder of the description, it will be placed in the case where it is desired to increase the thermal signature by emitting calories from the device 1. The emission of calories will create a thermal gradient of the fluid 20 throughout its circulation in the device 1 such that the temperature of the fluid 20 at the outlet of the device 1 will be substantially less than that which it had at the input of the device. The same gradient phenomenon can be observed at any point of the device 1 where any measurement of the temperature of the fluid 20 made upstream of another downstream measuring point (in the direction of the flow of the fluid 20), will see a difference in temperature. the upstream measuring point being hotter than the downstream measuring point. Thus a first end 4a of a first pipe 4 will be much hotter than a second end 6b of a second pipe 6 located next to it. If we consider the device 1 as a whole, the alternating distribution of the first 4 and second 6 pipes and the arrangement of the supply manifolds 3 and outlet 7 in the vicinity of each other makes it possible to distribute the gradient of temperature uniformly over the entire extent of the device 1, which allows not to have singularly hot parts and singularly cold parts. According to FIG. 4, which represents a cross-section along the plane AA marked in FIG. 2, the exterior EXT of the partition 101 of the vehicle (vehicle visible in FIG. 1) comprises, at a distance and parallel to this partition 101, a 30 infrared camouflage device 1 according to the invention. The device 1 comprises an alternation of first 4 and second 6 channels embedded in the middle of a multilayer substrate 8 conferring a plane appearance to the device 1 and intended to promote the thermal homogeneity of the device 1.
    [0006] The pipes 4 and 6 are located between two walls 9 and 10. The first wall 9 located towards the partition 101 of the vehicle comprises an insulating material which may for example comprise a cellular polyurethane foam. The face facing the vehicle of this first wall 9 comprises a film 11 of low thermal emissivity comprising for example metallized polyethylene having a reflective surface. The second wall 10 facing the outside of the vehicle comprises a material promoting thermal conduction, for example an aluminum alloy. The outer face 13 of this second wall comprises a heat-conducting metal film 13 such as an aluminum alloy film. The first wall 9 and its film 11 have the function of avoiding caloric losses emitted towards the vehicle. The second wall 10 and its metal film 13 have the function of homogeneously distributing the calories in the device in order to obtain a homogeneous thermal signature. The metal film 13 may optionally be coated with a paint. In order to optimize the effects of visual and thermal homogenization, the collectors 3, 7 and 5 can also be incorporated in the substrate 8.
    [0007] According to FIG. 5, which shows a device according to a second embodiment, each duct 4 and 6 comprises, in the vicinity of each of its ends 4a, 4b, 6a, 6b, a valve 30. This valve 30 comprises a spring tongue 30 integral with one of its edges, from the inside of a manifold 3, 7 or 5. At rest, the tongue 30 is kept at a distance from the opening of each pipe and thus allows the circulation of fluid 20 between pipes 4 and 6 and collectors 3, 7 and 5.
    [0008] Those skilled in the art will calibrate the spring tongues 30 so that they do not bend under the effect of the normal flow rate of the fluid 20 in the device, but allowing the bending of the tongues so that they come close off end of a pipe 4c in case of accidental breakage as in Figure 6. This bending will be caused by the difference in local and momentary flow at the ends of the broken pipe 4c. The bending will be maintained by the pressure difference between the interior of the device 1, where the fluid flows under a pressure greater than atmospheric pressure, and the external atmospheric pressure. Thus, in case of aggression of the vehicle at the level of the device, it will be able to avoid fluid leaks and retain its masking capabilities. It is obvious to the skilled person that the valves 30 may have a different structure, it suffices that it allows the passage of a fluid and its circulation stop according to the conditions previously stated, so a more sophisticated device can detect a loss of pressure in a pipe by means for example of pressure sensors located in each pipe. The valves will then comprise automatically controlled valves disposed at each end of the pipes and may then be actuated so as to block the flow of fluid in the damaged pipeline.
    权利要求:
    Claims (9)
    [0001]
    CLAIMS1- An infrared camouflage device (1) comprising a network of parallel pipes (4 and 6) carrying a heat-transfer fluid (20) intended to modify the thermal signature of a vehicle, a device (1) characterized in that it comprises a supply manifold (3) at which the heat transfer fluid (20) enters the device (1) to be conveyed to an intermediate manifold (5) by means of a first series of first pipes (4) integral with the collector d brought (3) at their first end (4a) and the intermediate manifold (5) at their second end (4b), a second series (6) of second pipes (6a) conveys the coolant (20) from the intermediate manifold ( 5) to an outlet manifold (7) for discharging the fluid (20) out of the device (1), second pipes (6) which are integral with the intermediate manifold (5) at their first end (6a) and the collector exit (7) by their second end (6b), each first pipe (4) being located in the vicinity of a second pipe (6) so as to form at the device (1) an alternation of first (4) and second (6) pipes parallel, the collector (3) of supply and the outlet collector (5) being adjacent to one another.
    [0002]
    2- camouflage device (1) infrared according to claim 1, characterized in that the distribution of the pipes (4,6) and collectors (3,5,7) substantially in the same plane allows to give the device (1) the shape of a panel.
    [0003]
    3- camouflage device (1) infrared according to one of claims 1 or 2, characterized in that the pipes (4,6) and collectors (3,5,7) are embedded in a substrate (8) homogenizing the thermal signature of the device (1).
    [0004]
    4- camouflage device (1) infrared according to claim 3, characterized in that the substrate (8) has two walls (9,10) between which are located the pipes (4,6), the first wall (9) is intended to be oriented towards an external face (101) of the vehicle (100) and comprises a material promoting thermal insulation, a reflective film (11) with a low thermal emissivity is placed on the face of this wall (9) intended to to be oriented towards the vehicle, the second wall (10) comprises a material promoting thermal conduction and the face of this second wall (10) which is directed towards the outside of the vehicle comprises a conductive metal film (13).
    [0005]
    5- camouflage device (1) infrared according to claim 4, characterized in that the material of the first wall (9) promoting the thermal insulation comprises polyurethane foam
    [0006]
    6. An infrared camouflage device according to claim 4, characterized in that the material of the second wall (10) promoting thermal conduction comprises an aluminum alloy.
    [0007]
    7- infrared camouflage device according to one of claims 1 to 6, characterized in that each end (4a, 4b, 6a, 6b) of each pipe (4,6) comprises a valve 30 (30) tared so as to close the channel (4,6) in case of breakage thereof.
    [0008]
    8- camouflage device (1) infrared according to claim 7, characterized in that each valve (30) .35 comprises a leaf spring (30) located in a collector (3,5,7) and secured by one of its edges the vicinity of the end (4a, 4b, 6a, 6b) of the pipe (4,6) to be closed.
    [0009]
    9- Military vehicle (100) comprising means for thermally regulating a heat transfer fluid (20) and for circulating this fluid (20), thermal regulation and circulation means connected to at least one thermal camouflage device (1). ) according to one of the preceding claims, device (1) which is disposed on at least one outer face (101) of the vehicle (100).
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    同族专利:
    公开号 | 公开日
    BR102015027360B1|2021-07-27|
    FR3028025B1|2016-11-04|
    US20160123706A1|2016-05-05|
    EP3015813B1|2017-07-12|
    DK3015813T3|2017-10-23|
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    BR102015027360A2|2016-08-02|
    IL242090A|2019-06-30|
    IL242090D0|2016-02-29|
    SI3015813T1|2017-10-30|
    US10345080B2|2019-07-09|
    EP3015813A1|2016-05-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE29519417U1|1994-12-07|1996-06-05|Vogel & Noot Waermetechnik Ag|Radiator with essentially tubular feed and discharge for a heat transfer fluid|
    US5751006A|1997-05-05|1998-05-12|The United States Of America As Represented By The Secretary Of The Navy|Water heated panels for simulating the infrared signature of a target|
    WO2002043445A2|2000-10-11|2002-05-30|Tvi Corporation|Thermal image identification system|
    DE3433598A1|1984-09-13|1986-03-20|Heinz Schilling KG, 4152 Kempen|METHOD FOR PRACTICAL USE OF THE COUNTERFLOW PRINCIPLE FOR HEAT EXCHANGER, AIR / WATER, AIR / AIR OR SENSUAL MEASUREMENT FOR OTHER MEDIA|
    US4825937A|1988-07-12|1989-05-02|Kertzman Harvey Z|Sealing apparatus for automobile radiators|
    NL1022998C2|2003-03-24|2004-09-27|Finhoeks B V|Mobile heat exchanger and system for providing an ice rink provided with such a heat exchanger.|
    DE102004037419B3|2004-07-30|2006-02-16|Siemens Ag|Valve for use in a fuel-carrying line of a motor vehicle|
    DE102012105446B4|2011-07-26|2018-07-26|Endress+Hauser Conducta Gmbh+Co. Kg|Device for determining and / or monitoring a chemical or physical process variable in automation technology|CN106931832B|2017-04-11|2018-11-23|江苏豪赛科技股份有限公司|There is the infrared suppressing structure in inner heat source equipment high temperature aperture on ground|
    RU2673859C1|2017-09-18|2018-11-30|Федеральное Государственное Казенное "Военное Образовательное Учреждение Высшего Образования "Военный Учебно-Научный Центр Сухопутных Войск "Общевойсковая Академия Вооруженных Сил Российской Федерации"|Device to reduce thermal visibility of fighting machines|
    RU184679U1|2018-07-24|2018-11-02|Федеральное Государственное Казенное Военное Образовательное Учреждение Высшего Образования Военный Учебно-Научный Центр Сухопутных Войск "Общевойсковая Академия Вооруженных Сил Российской Федерации"|Protective camouflage screen for combined cooling of thermal radiation of heated parts of a ground moving object|
    RU193769U1|2019-06-14|2019-11-14|Федеральное Государственное Казенное Военное Образовательное Учреждение Высшего Образования Военный Учебно-Научный Центр Сухопутных Войск "Общевойсковая Академия Вооруженных Сил Российской Федерации"|Protective camouflage screen for combined cooling of thermal radiation of heated parts of a large-sized land mobile power unit|
    法律状态:
    2015-10-01| PLFP| Fee payment|Year of fee payment: 2 |
    2016-05-06| PLSC| Search report ready|Effective date: 20160506 |
    2016-09-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-09-21| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1402477A|FR3028025B1|2014-10-30|2014-10-30|THERMAL CAMOUFLAGE DEVICE AND VEHICLE COMPRISING SUCH A DEVICE|FR1402477A| FR3028025B1|2014-10-30|2014-10-30|THERMAL CAMOUFLAGE DEVICE AND VEHICLE COMPRISING SUCH A DEVICE|
    CA2908099A| CA2908099A1|2014-10-30|2015-10-02|Thermal camouflage device and vehicle with such a device.|
    IL242090A| IL242090A|2014-10-30|2015-10-15|Thermal camouflage device and vehicle comprising such a device|
    US14/924,175| US10345080B2|2014-10-30|2015-10-27|Thermal camouflage device and vehicle comprising such a device|
    DK15191991.7T| DK3015813T3|2014-10-30|2015-10-28|Device for thermal camouflage and vehicle comprising such a device|
    SI201530087T| SI3015813T1|2014-10-30|2015-10-28|Thermal camouflage arrangement and vehicle including such a device|
    EP15191991.7A| EP3015813B1|2014-10-30|2015-10-28|Thermal camouflage arrangement and vehicle including such a device|
    BR102015027360-6A| BR102015027360B1|2014-10-30|2015-10-28|THERMAL CAMOUFLAGE DEVICE AND VEHICLE INCLUDING SUCH DEVICE|
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