• 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:
    Apparatus for indicating the rate of ice accretion on a surface particularly for use in aircraft comprising a hollow housing divided internally by a resilient diaphragm into first and second chambers. A first conduit communication at one end with a gas supply and terminating at its other end in a first orifice. Intermediate the ends of the first conduit is a first restrictor and the first chamber of the housing communicates with the first conduit intermediate the first orifice and the first restrictor. Movable relative to the first orifice is a test surface upon which ice can form in use. The test surface is in use moved at a known speed and at a constant spacing from the first orifice. A second conduit communicates at one end with the gas supply and at its other end terminates in a second orifice. Intermediate the ends of the second conduit is a second restrictor and the second restrictor is variable, the setting thereof being determined by the position of the diaphragm in the housing. The second chamber of the housing communicates with the second conduit between the second restrictor and the second orifice and associated with the diaphragm is a proximity sensor for supplying a signal representative of the position of the diaphragm to a visual indicator. The second restrictor is arranged to effect a decrease in the restriction in the second conduit as the diaphragm moves in a direction to reduce the volume of the second chamber.
    公开号:SU712020A3
    申请号:SU762421094
    申请日:1976-11-19
    公开日:1980-01-25
    发明作者:Эдингтон Джордж
    申请人:Лукас Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to devices for indicating surface icing and is intended for use in aviation.
    Closest to the invention is a device for indicating surface icing, comprising a hollow body in which there are two chambers separated by a diaphragm of a gas flow activator, connected via pipelines to the chambers and nozzles through the throttles. and the second recording, signaling equipment connected to the diaphragm, and the device for removing ice 1.
    However, this device only indicates the presence of ice and operates intermittently and not continuously.
    The aim of the invention is to provide a recording of the rate of ice formation and the creation of an air flow for its removal.
    This is achieved by the fact that the device is equipped with a control surface with means for its movement, set relative to nozzles, with a guaranteed gap, one of the throttles located in a line connecting the gas flow exciter with a control nozzle, has an adjustable flow area, and throttles are located in the housing.
    In addition, the throttle, having an adjustable flow area, contains a movable shaped sleeve connected to the diaphragm. In this case, the controlled surface is closed and equipped with a mechanical device for removing ice.
    It is advisable that the device for removing ice be made in the form of a scraper and be installed in the zone of the test nozzle.
    The drawing shows a schematic diagram of the device.
    The device contains a hollow body 1, in which there are first chamber 2 and second chamber 3, formed by hollow body 1 and diaphragm 4, an agitator of the gas flow (not shown), podklyuchenyu through the supply line 5, the first pipe b with nipple 7 and provided with a throttle 8, and a second pipe 9 with a nipple 10 and a throttle formed by the first sub-chamber 11, the second podkg ryoy 12. hollow body 1 and the sleeve 13 with
    grooves14. The throttle has an adjustable flow area to the first chamber 2 and the second chamber 3, respectively, and pipes 15 and 16 are connected to the nozzles 17, 18, respectively, with the nozzle 18 - control.
    Signaling equipment 19 is connected to a sensitive element 20 located in the wall of the hollow core 1 and reacting to the movement of the sleeve 13 connected to the diaphragm 4. The device is equipped with a reference surface 21 and means for moving it (not shown). The reference surface is set relative to the nozzles 17 and 18 with a guaranteed clearance and is equipped with a mechanical device for removing ice in the form of a scraper 22.
    When the device is operating, if there is no ice on the control surface 21, the nozzle 17 is relatively throttled, as well as the nozzle 18, and has the same flow area, and the diaphragm 4 is in a neutral position, in which the variable choke with sleeve 13 creates a pressure equal to pressure generated by choke 8, i.e. the pressure in the first chamber 2 is equal to the pressure in the second chamber 3.
    If ice begins to form on the control surface 21, the layer of which, when moved, will fall into the nozzle zone 17, fill a part of the guaranteed clearance between the control surface 21 and the nozzle 17. Throttling the nozzle 17 causes a decrease in air flow through it and thus an increase in air pressure in the pipeline the nozzle 17 and the throttle 8. As a result, the pressure in the first chamber 2 of the hollow body 1 increases and the diaphragm 4 moves in the direction of decreasing the volume of the second chamber 3. Moving the diaphragm 4 will cause The sleeve 13 with grooves 14, which entails the movement of the deeper sections of the grooves 14 into the part of the passage connecting the first sub-chamber 11 and the second sub-chamber 12. This reduces the throttling effect and increases the pressure in the pipeline 16 in the zone between the throttle and the nozzle 18. An adjustable flow throttle is adjusted in such a way that, by moving the diaphragm 4, the pressure in the second chamber 3 will increase to a value equal to the pressure in the first chamber 2, at which the diaphragm 4 will take a new equilibrium a lie. Under the new equilibrium position, the air flow through the pipeline 15 is reduced, since the nozzle 17 is choked, while the air flow through the pipeline 16 is increased. A large amount of air escapes from the nozzle 18, which forms a stream that clears the pieces of ice in the area of the scraper 22.
    The movement of the diaphragm 4 is directly related to the thickness of the ice layer. formed on the control surface 21. The sensing element 19 generates an output signal, the magnitude of which is determined by the position of the diaphragm 4 relative to the hollow body 1 and this signal is fed to the signaling apparatus 19. As the control surface 21 moves with the specified parameters and is clear of ice after passing through the nozzle area 17, the readings of the signaling apparatus 19 can be suitably calibrated.
    Due to such an embodiment of the device for indicating the icing of the surface, the rate of ice formation is recorded continuously.
    权利要求:
    Claims (5)
    [1]
    1. A device for indicating surface icing, comprising a hollow body in which there are two chambers separated by a diaphragm, a gas flow motion pathogen connected through chokes with pipelines to the chambers and nozzles, and one control nozzle and the second recording signaling device connected to a diaphragm, and a device for removing ice, so that, in order to ensure the registration of the rate of formation of ice, the device is provided with a control surface with means for moving it, Installed relative to the nozzles, with a guaranteed clearance, one of the chokes, located in the line connecting the gas flow pathogen to the control nozzle, has an adjustable flow area.
    [2]
    2. The device pop. 1, differs from the fact that the throttles are located in the housing.
    [3]
    3. The device according to PP.-1 and 2, which is different - the fact that the throttle, having an adjustable flow area, contains a movable shaped sleeve connected to the diaphragm.
    [4]
    4. Device on PP. 1-3, which is controlled by the fact that the controlled surface is closed and provided with a mechanical device for removing ice.
    [5]
    5. Device according to claim 4, characterized in that the device for removing ice is made in the form of a scraper.
    b. A device in accordance with claim 5, in which, in order to create an air flow for the removal of pieces of ice, is installed in the area of the test nozzle.
    Sources of information taken into account in the examination
    1. Patent of Great Britain 820591, cl. 4, 1959 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU712020A3|1980-01-25|Device for surface icing indication
    US2645240A|1953-07-14|Pressure control device
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    US2746296A|1956-05-22|Gage for flowmeters
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    SU467242A1|1975-04-15|Device for measuring the temperature of gas streams
    GB556004A|1943-09-16|An improved apparatus for maintaining consistency or density of a liquid
    同族专利:
    公开号 | 公开日
    FR2332517B1|1982-02-26|
    CA1053029A|1979-04-24|
    DE2652326A1|1977-05-26|
    JPS5263781A|1977-05-26|
    GB1562488A|1980-03-12|
    US4053127A|1977-10-11|
    FR2332517A1|1977-06-17|
    DE2652326C2|1986-10-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3058305A|1959-04-16|1962-10-16|Jr Leonard P Leigh|Control device for aircraft deicing apparatus|
    GB1508598A|1974-07-09|1978-04-26|Lucas Industries Ltd|Apparatus for indicating ice accretion|
    GB1541422A|1975-06-04|1979-02-28|Lucas Industries Ltd|Apparatus for indicating rate of ice accretion|JPH0126183Y2|1981-05-18|1989-08-04|
    DE3348107C2|1983-08-30|1988-01-21|Securiton Ag, Zollikofen, Bern, Ch|Smoke suction system of a line smoke alarm|
    DE3331203C2|1983-08-30|1987-05-07|Securiton Ag, Zollikofen, Bern, Ch|
    US4745804A|1986-12-08|1988-05-24|Dataproducts New England, Inc.|Accretion type ice detector|
    US5710554A|1996-02-01|1998-01-20|Pettler; Peter R.|Pavement ice detector|
    US6010095A|1997-08-20|2000-01-04|New Avionics Corporation|Icing detector for aircraft|
    CN100439863C|2007-02-08|2008-12-03|南通市南方润滑液压设备有限公司|Intellectualized pressure difference thickness measuring system for rotary container|
    US7439877B1|2007-05-18|2008-10-21|Philip Onni Jarvinen|Total impedance and complex dielectric property ice detection system|
    US11021259B1|2021-01-07|2021-06-01|Philip Onni Jarvinen|Aircraft exhaust mitigation system and process|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB47592/75A|GB1562488A|1975-11-19|1975-11-19|Apparatus for indicating rate of ice eccretion|
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