WO2022032893A1 - 一种设有充气装置的飞机发动机防护罩 - Google Patents

一种设有充气装置的飞机发动机防护罩 Download PDF

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Publication number
WO2022032893A1
WO2022032893A1 PCT/CN2020/126417 CN2020126417W WO2022032893A1 WO 2022032893 A1 WO2022032893 A1 WO 2022032893A1 CN 2020126417 W CN2020126417 W CN 2020126417W WO 2022032893 A1 WO2022032893 A1 WO 2022032893A1
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Prior art keywords
protective cover
inflatable
cavity
engine
air
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Application number
PCT/CN2020/126417
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English (en)
French (fr)
Inventor
董春阳
田庆亮
Original Assignee
田庆亮
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.)
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Publication date
Priority claimed from CN202021672038.0U external-priority patent/CN212373670U/zh
Priority claimed from CN202010809194.5A external-priority patent/CN111776230A/zh
Application filed by 田庆亮 filed Critical 田庆亮
Publication of WO2022032893A1 publication Critical patent/WO2022032893A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/40—Arrangements for mounting power plants in aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/04—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes

Definitions

  • the invention relates to the field of aircraft engine protective covers, in particular to an inflatable protective cover provided with a self-inflating device for an aircraft engine air inlet and a tail nozzle.
  • the protection method of the air intake generally uses a protective cloth cover to cover the outside of the engine air intake.
  • the overall size of the aircraft engine is generally large, and the top of the engine is as high as 2.5-4m. Therefore, it cannot be easily installed directly on the ground, and the traditional installation method requires multiple operations.
  • the personnel use the installation ladder to climb to the top of the engine and put the protective cover into the outside of the air inlet for installation.
  • the fixing is done by means of fixing straps or pins, which takes a long time to install and the work intensity of the back-and-forth push ladder is high.
  • the protection method of the tail spout generally uses a cloth sleeve filled with high-density sponge to plug the tail spout. This kind of protective cover is not easy to compress, has a large storage volume, and takes a long time to install.
  • the invention provides an aircraft engine protective cover provided with an inflatable device.
  • an aircraft engine protective cover provided with an inflatable device, comprising: an inflatable cavity, an inflatable device, a circular base cloth, a fixed drawstring, an air nozzle, and a warning streamer, and the inflatable device is arranged on the Inside the inflatable cavity, there is an air nozzle on the inflatable cavity, a round base cloth is arranged inside the inflatable cavity, a fixed pull strap is arranged outside the protective cover, and a warning streamer is arranged outside the protective cover.
  • the power is turned on, it starts, and the inflator inflates the protective cover. After reaching a certain air pressure intensity, the inflation stops.
  • the protective cover forms an inflatable shape with a certain strength. , When the protective cover is installed, the inflatable shape is tightened and fixed by squeezing the inner wall of the engine to be protected.
  • An aircraft engine protective cover provided with an inflatable device according to the present invention includes: the inflatable cavity is made of TPU synthetic material or PVC mesh material, and a closed inflatable cavity is made by high-frequency welding or high-temperature heat sealing process, which can keep the air closed for a long time. No air leaks.
  • the inflatable device can be arranged inside the inflatable cavity of the protective cover through a high-frequency welding process.
  • the inflator is provided with a high-speed motor, and the motor is equipped with blades.
  • the power supply can be built-in or external. After the power is turned on, the inflator starts to work to inflate the inflatable cavity.
  • the air outlet of the inflatable device is provided with a non-return device, which can be self-sealing after being inflated to the inflatable cavity of the protective cover.
  • the air nozzle can be opened to release the air and then stored.
  • the invention is improved in the way that the traditional engine air inlet protective cover is sleeved and installed outside the air inlet, which requires multiple people to operate, uses an installation ladder, takes a long time to install, and the tail nozzle protective cover has a large storage and storage volume and takes a long time to install.
  • the inflatable pump is inconvenient to carry outside and the inflation efficiency is low. Improvements have been made.
  • the protective cover can be self-inflating , the inflatable device can be started after the power is turned on, the inflatable device inflates the protective cover, and stops the inflation after reaching a certain air pressure intensity, the protective cover forms an inflatable shape with a certain strength, and the prefabricated external dimensions of the protective cover are the same as the internal dimensions of the engine air intake. It matches or matches the size of the tail nozzle of the engine.
  • the inflatable shape is tightened and fixed by squeezing the inner wall of the protective parts of the engine. The installation process is simple and the protective cover is self-inflating, which is fast and convenient.
  • the protective cover can be self-inflated without the need for an external handheld inflatable device.
  • the inflatable device is integrated with the protective cover, which is more convenient to carry and has a higher inflation efficiency.
  • the aircraft engine protective cover provided with the inflatable device supports the prefabricated shape after inflating and is installed in the required protective parts of the engine, with high supporting strength and light weight.
  • the aircraft engine protective cover provided with the inflatable device after inflating, can be installed and protected by blocking the engine air inlet and the tail nozzle, without installing a ladder, shortening the installation time and reducing labor intensity.
  • the aircraft engine protective cover provided with the inflatable device is easy to install, easy to disassemble, stored after deflation, small in size, easy to carry, and improves efficiency.
  • FIG. 1 shows a schematic structural diagram of an aircraft engine protective cover provided with an inflator according to the present invention.
  • FIG. 2 shows a schematic structural diagram of an inflator of an aircraft engine protective cover provided with an inflator according to the present invention.
  • FIG. 3 shows a schematic diagram of an aircraft engine protective cover provided with an inflator according to the present invention being installed inside an air intake.
  • FIG. 4 shows a schematic diagram of the installation of an aircraft engine protective cover with an inflator according to the present invention to an engine tail nozzle.
  • Inflatable cavity 2. Inflatable device, 3. Round base cloth, 4. Fixed pull belt, 5. Air nozzle, 6. Warning streamer, 201. Weldable edge of shell, 202. Motor, 203. Blade, 204. Shell, 205. Anti-return gasket, 206. Air outlet, 207. Inflatable cavity fabric.
  • FIG. 1 shows a schematic structural diagram of an aircraft engine protective cover provided with an inflator according to the present invention.
  • the aircraft engine protective cover provided with an inflatable device according to the present invention includes: an inflatable cavity 1, an inflatable device 2, a circular base cloth 3, a fixed drawstring 4, an air nozzle 5, a warning streamer 6, and an inflatable device 2 is arranged in the inflatable cavity Inside 1, there is an air nozzle 5 on the inflatable cavity 1, a circular base cloth 3 is arranged on the inside of the inflatable cavity 1, a fixed pull belt 4 is arranged on the outside of the protective cover, and a warning streamer 6 is arranged on the outside of the protective cover.
  • the inflator 2 inflates the protective cover, and stops the inflation after reaching a certain air pressure strength, the protective cover forms an inflatable shape with a certain strength, and the protective cover is prefabricated.
  • the internal dimensions of the channel or the tail nozzle are matched.
  • the inflatable cavity fabric 207 is made of TPU synthetic material or PVC mesh material, and is made into a closed inflatable cavity by high-frequency welding or high-temperature heat sealing process, which can keep air-tight for a long time without air leakage.
  • the inflatable device 2 can be welded together by the high-frequency welding process to weld the fusible edge 201 of the upper shell of the inflatable device and the inflatable cavity fabric 207, so that the inflatable device body is arranged inside the protective cover inflatable cavity, and the cover outside the inflatable device is outside the inflatable cavity. , for easy air intake and connection to the power supply.
  • the inflator is driven by electricity, and is equipped with a high-speed motor 202.
  • the motor is equipped with blades 203.
  • the power supply can be a convenient battery type.
  • the power supply can be built-in or external.
  • the inflator starts to work after the power is turned on. Inflate the shield inflation chamber.
  • the inflator is provided with an air inlet and an air outlet.
  • the air outlet 206 of the inflator is provided with a non-return gasket 205, which can be self-sealing after being inflated to the air chamber 1 of the protective cover.
  • Sealing rubber rings are used for the opening and closing positions of the casing and the cover of the inflatable device, and the casing and the cover have certain water-repellent performance.
  • the position of the inflatable device can be provided with a protective cloth cover, which is glued with Velcro to protect the shell and cover of the inflatable device.
  • the prefabricated outer dimensions of the protective cover are matched with the inner dimensions of the engine air intake or the inner dimension of the tail jet.
  • the inflatable shape is tightened and fixed by squeezing the inner wall of the protective component of the engine.
  • the protective cover After the protective cover is installed inside the engine air intake or the tail nozzle, it is used to block foreign objects from entering the engine.
  • the protective cover is installed and formed into a prefabricated shape after being inflated to block the engine air inlet or tail nozzle, and is fixed on the air inlet or tail nozzle by the expansion force generated by the compression of the inflated shape.
  • the protective cover acts as a barrier on the air inlet or the tail nozzle to prevent foreign objects from entering the engine from the air inlet or the tail nozzle, and plays the role of the protective cover to protect the engine.
  • the air nozzle 5 can be opened to release air and then stored.
  • FIG. 1 shows a schematic structural diagram of an aircraft engine protective cover provided with an inflator according to the present invention.
  • the aircraft engine protective cover provided with an inflatable device according to the present invention includes: an inflatable cavity 1, an inflatable device 2, a circular base cloth 3, a fixed drawstring 4, an air nozzle 5, a warning streamer 6, and an inflatable device 2 is arranged in the inflatable cavity Inside 1, there is an air nozzle 5 on the inflatable cavity 1, a circular base cloth 3 is arranged on the inside of the inflatable cavity 1, a fixed pull belt 4 is arranged on the outside of the protective cover, and a warning streamer 6 is arranged on the outside of the protective cover.
  • the inflator 2 inflates the protective cover, and stops the inflation after reaching a certain air pressure strength, the protective cover forms an inflatable shape with a certain strength, and the protective cover is prefabricated.
  • the internal dimensions of the channel or the tail nozzle are matched.
  • the inflatable cavity fabric 207 is made of TPU synthetic material or PVC mesh material, and is made into a closed inflatable cavity by high-frequency welding or high-temperature heat sealing process, which can keep air-tight for a long time without air leakage.
  • the inflatable device 2 can be welded together by the high-frequency welding process to weld the fusible edge 201 of the upper shell of the inflatable device and the inflatable cavity fabric 207, so that the inflatable device body is arranged inside the protective cover inflatable cavity, and the cover outside the inflatable device is outside the inflatable cavity. , for easy air intake and connection to the power supply.
  • the inflator is driven by electricity, and is equipped with a high-speed motor 202.
  • the motor is equipped with blades 203.
  • the power supply can be a convenient battery type.
  • the power supply can be built-in or external.
  • the inflator starts to work after the power is turned on. Inflate the shield inflation chamber.
  • the inflator is provided with an air inlet and an air outlet.
  • the air outlet 206 of the inflator is provided with a non-return gasket 205, which can be self-sealing after being inflated to the air chamber 1 of the protective cover.
  • Sealing rubber rings are used for the opening and closing positions of the casing and the cover of the inflatable device, and the casing and the cover have certain water-repellent performance.
  • the position of the inflatable device can be provided with a protective cloth cover, which is glued with Velcro to protect the shell and cover of the inflatable device.
  • the prefabricated outer dimensions of the protective cover are matched with the inner dimensions of the engine air intake or the inner dimension of the tail jet.
  • the inflatable shape is tightened and fixed by squeezing the inner wall of the protective component of the engine.
  • the protective cover After the protective cover is installed inside the engine air intake or the tail nozzle, it is used to block foreign objects from entering the engine.
  • the protective cover is installed and formed into a prefabricated shape after being inflated to block the engine air inlet or tail nozzle, and is fixed on the air inlet or tail nozzle by the expansion force generated by the compression of the inflated shape.
  • the protective cover acts as a barrier on the air inlet or the tail nozzle to prevent foreign objects from entering the engine from the air inlet or the tail nozzle, and plays the role of the protective cover to protect the engine.
  • the air nozzle 5 can be opened to release air and then stored.
  • the invention is improved in the way that the traditional engine air inlet protective cover is sleeved and installed outside the air inlet, which requires multiple people to operate, uses an installation ladder, takes a long time to install, and the tail nozzle protective cover has a large storage and storage volume and takes a long time to install.
  • the inflatable pump is inconvenient to carry outside and the inflation efficiency is low. Improvements have been made.
  • the protective cover can be self-inflating , the inflatable device can be started after the power is turned on, the inflatable device inflates the protective cover, and stops the inflation after reaching a certain air pressure intensity, the protective cover forms an inflatable shape with a certain strength, and the prefabricated external dimensions of the protective cover are the same as the internal dimensions of the engine air intake. It matches or matches the size of the tail nozzle of the engine.
  • the inflatable shape is tightened and fixed by squeezing the inner wall of the protective parts of the engine. The installation process is simple and the protective cover is self-inflating, which is fast and convenient.

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  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

本发明公开一种设有充气装置的飞机发动机防护罩，包括：充气腔，充气装置，圆型底布，固定拉带，气嘴，警示飘带，所述防护罩可自充气，充气装置设置在充气腔内部，充气腔上设有气嘴，圆型底布设置在充气腔内侧，防护罩外侧设有固定拉带，警示飘带设置在防护罩外侧，对充气装置接通电源后启动，充气装置对防护罩进行充气，达到一定的气压强度后充气停止，防护罩形成具备一定强度的充气外形，防护罩预制外形尺寸与发动机进气道内部或尾喷口内部尺寸匹配，防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定，安装过程操作简单，防护罩自充气，快速便捷。

Description

一种设有充气装置的飞机发动机防护罩 技术领域
本发明涉及飞机发动机防护罩领域，尤其是一种设有自充气装置的飞机发动机进气道及尾喷口的充气式防护罩。
 背景技术
现有飞机发动机防护通常对发动机进气口及尾喷进行防护。进气口的防护方式一般使用防护布罩套在发动机进气口外侧，飞机发动机外形尺寸一般较大，发动机顶部高达2.5-4m，因此在地面无法轻易实现直接安装，传统安装方式需要多名操作人员使用安装梯爬到发动机顶部位置将防护罩套入进气口外侧安装，固定采用固定带或销钉方式，安装耗时长，往返推梯工作强度大。尾喷口的防护方式一般使用填充有高密度海绵的布套塞在尾喷口，这种防护罩不易压缩收纳存放体积大，安装耗时长。
目前的飞机发动机充气式防护罩在使用时，通常使用外置的手持充气泵进行充气，存在充气泵外场携带不方便，充气效率低的问题。
 技术问题
为了解决现有发动机进气道防护罩套入进气口外侧安装，使用安装梯工作强度高、安装人员多及安装耗时长，以及尾喷口防护罩收纳存放体积大，安装耗时长，同时使用外置的手持充气泵对充气式防护罩进行充气时，存在充气泵外场携带不方便，充气效率低的问题，本发明提供一种设有充气装置的飞机发动机防护罩。
 技术解决方案
本发明的技术目的通过以下技术方案实现：一种设有充气装置的飞机发动机防护罩，包括：充气腔，充气装置，圆型底布，固定拉带，气嘴，警示飘带，充气装置设置在充气腔内部，充气腔上设有气嘴，圆型底布设置在充气腔内侧，防护罩外侧设有固定拉带，警示飘带设置在防护罩外侧，所述防护罩可自充气，对充气装置接通电源后启动，充气装置对防护罩进行充气，达到一定的气压强度后充气停止，防护罩形成具备一定强度的充气外形，防护罩预制外形尺寸与发动机进气道内部或尾喷口内部尺寸匹配，防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定。
根据本发明的一种设有充气装置的飞机发动机防护罩，包括：充气腔采用TPU合成材料或PVC夹网材料，通过高周波焊接或高温热合工艺制成密闭的充气腔，可保持长时间的闭气不漏气。
充气装置可通过高周波焊接工艺，将其设置在防护罩充气腔的内部。
充气装置设有高转速马达，马达上装有叶片，电源可以内置或外置，电源接通后充气装置开始工作，对充气腔进行充气。
充气装置出气口设有止逆装置，充气到防护罩充气腔后可自密封。
所述防护罩安装完成，可打开气嘴放气后进行收纳。
本发明是在传统发动机进气口防护罩套入进气口外侧安装，需多人操作、使用安装梯、安装耗时长以及尾喷口防护罩收纳存放体积大，安装耗时长的方式上进行改进，同时使用外置的手持充气泵对充气式防护罩进行充气时，存在充气泵外场携带不方便，充气效率低的问题上进行改进，通过将充气装置内置在防护罩上，使防护罩可自充气，充气装置接通电源后便可启动，充气装置对防护罩进行充气，达到一定的气压强度后充气停止，防护罩形成具备一定强度的充气外形，防护罩预制外形尺寸与发动机进气道内部尺寸匹配或与发动机的尾喷口尺寸匹配，防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定，安装过程操作简单，防护罩自充气，快速便捷。
 有益效果
本发明的有益效果是：1、所述设有充气装置的飞机发动机防护罩，防护罩可自充气，无需外置手持充气装置。
2、所述设有充气装置的飞机发动机防护罩，充气装置与防护罩一体化，携带更方便，充气效率更高。
3、所述设有充气装置的飞机发动机防护罩，充气后支撑预制外形安装到发动机需防护部件内，支撑强度较高且重量轻质。
4、所述设有充气装置的飞机发动机防护罩，充气后，对发动机进气口及尾喷口堵塞式安装防护，无需安装梯，缩短安装时间，降低劳动强度。
5、所述设有充气装置的飞机发动机防护罩，安装简便，拆卸容易，放气后收纳，体积小，便于携带，提高效率。
 附图说明
下面结合附图和实施例对本发明进一步说明。
图1中示出了本发明的一种设有充气装置的飞机发动机防护罩结构示意图。
图2中示出了本发明的一种设有充气装置的飞机发动机防护罩的充气装置结构示意图。
图3中示出了本发明的一种设有充气装置的飞机发动机防护罩防护罩安装到进气道内部的示意图。
图4中示出了本发明的一种设有充气装置的飞机发动机防护罩防护罩安装到发动机尾喷口的示意图。
图中1.充气腔，2.充气装置，3.圆型底布，4.固定拉带，5.气嘴，6.警示飘带，201.外壳可熔接边，202.马达，203.叶片，204.外壳，205.止逆密封垫，206.出气口，207.充气腔面料。
 本发明的最佳实施方式
图1中示出了本发明的设有充气装置的飞机发动机防护罩结构示意图。根据本发明的设有充气装置的飞机发动机防护罩，包括：充气腔1，充气装置2，圆型底布3，固定拉带4，气嘴5，警示飘带6，充气装置2设置在充气腔1内部，充气腔1上设有气嘴5，圆型底布3设置在充气腔1内侧，防护罩外侧设有固定拉带4，警示飘带6设置在防护罩外侧，所述防护罩可自充气，通过对充气装置2接通电源后启动，充气装置2对防护罩进行充气，达到一定的气压强度后充气停止，防护罩形成具备一定强度的充气外形，防护罩预制外形尺寸与发动机进气道内部或尾喷口内部尺寸匹配，防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定。
充气腔面料207采用TPU合成材料或PVC夹网材料，通过高周波焊接或高温热合工艺制成密闭的充气腔，可保持长时间的闭气不漏气。
充气装置2可通过高周波焊接工艺，将充气装置上外壳可熔接边201与充气腔面料207熔接在一起，使充气装置本体设置在防护罩充气腔的内部，充气装置外侧的盖则在充气腔外侧，便于进气和连接电源。
充气装置采用电力驱动，设有高转速马达202，马达上装有叶片203，电源可以采用便捷电池型，电源可内置或外置，电源接通后充气装置开始工作，通过充气装置上的出气口206对防护罩充气腔进行充气。
充气装置设有进气口和出气口。
充气装置出气口206设有止逆密封垫205，充气到防护罩充气腔1后可自密封。
充气装置外壳及盖开合位置采用密封性橡胶圈，同时外壳及盖有一定的防泼水性能。
充气装置位置可以设有防护的布盖，用魔术贴粘合，以便保护充气装置外壳及盖。
所述防护罩预制外形尺寸与发动机进气道内部或尾喷口内部尺寸匹配。
所述防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定。
所述防护罩安装到发动机进气口或尾喷口内部后，用来阻挡外来物进入发动机。
所述防护罩安装，充气后形成预制外形对发动机进气口或尾喷口堵塞式安装，通过充气外形被压缩产生的胀紧力固定在进气口或尾喷口上。
所述防护罩安装完成后，作为进气口或尾喷口上的塞子起到屏障作用，阻挡外来物从进气口或尾喷口进入发动机，起到防护罩保护发动机的作用。
所述防护罩安装完成，可打开气嘴5放气后进行收纳。
 本发明的实施方式
图1中示出了本发明的设有充气装置的飞机发动机防护罩结构示意图。根据本发明的设有充气装置的飞机发动机防护罩，包括：充气腔1，充气装置2，圆型底布3，固定拉带4，气嘴5，警示飘带6，充气装置2设置在充气腔1内部，充气腔1上设有气嘴5，圆型底布3设置在充气腔1内侧，防护罩外侧设有固定拉带4，警示飘带6设置在防护罩外侧，所述防护罩可自充气，通过对充气装置2接通电源后启动，充气装置2对防护罩进行充气，达到一定的气压强度后充气停止，防护罩形成具备一定强度的充气外形，防护罩预制外形尺寸与发动机进气道内部或尾喷口内部尺寸匹配，防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定。
充气腔面料207采用TPU合成材料或PVC夹网材料，通过高周波焊接或高温热合工艺制成密闭的充气腔，可保持长时间的闭气不漏气。
充气装置2可通过高周波焊接工艺，将充气装置上外壳可熔接边201与充气腔面料207熔接在一起，使充气装置本体设置在防护罩充气腔的内部，充气装置外侧的盖则在充气腔外侧，便于进气和连接电源。
充气装置采用电力驱动，设有高转速马达202，马达上装有叶片203，电源可以采用便捷电池型，电源可内置或外置，电源接通后充气装置开始工作，通过充气装置上的出气口206对防护罩充气腔进行充气。
充气装置设有进气口和出气口。
充气装置出气口206设有止逆密封垫205，充气到防护罩充气腔1后可自密封。
充气装置外壳及盖开合位置采用密封性橡胶圈，同时外壳及盖有一定的防泼水性能。
充气装置位置可以设有防护的布盖，用魔术贴粘合，以便保护充气装置外壳及盖。
所述防护罩预制外形尺寸与发动机进气道内部或尾喷口内部尺寸匹配。
所述防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定。
所述防护罩安装到发动机进气口或尾喷口内部后，用来阻挡外来物进入发动机。
所述防护罩安装，充气后形成预制外形对发动机进气口或尾喷口堵塞式安装，通过充气外形被压缩产生的胀紧力固定在进气口或尾喷口上。
所述防护罩安装完成后，作为进气口或尾喷口上的塞子起到屏障作用，阻挡外来物从进气口或尾喷口进入发动机，起到防护罩保护发动机的作用。
所述防护罩安装完成，可打开气嘴5放气后进行收纳。
 工业实用性
本发明是在传统发动机进气口防护罩套入进气口外侧安装，需多人操作、使用安装梯、安装耗时长以及尾喷口防护罩收纳存放体积大，安装耗时长的方式上进行改进，同时使用外置的手持充气泵对充气式防护罩进行充气时，存在充气泵外场携带不方便，充气效率低的问题上进行改进，通过将充气装置内置在防护罩上，使防护罩可自充气，充气装置接通电源后便可启动，充气装置对防护罩进行充气，达到一定的气压强度后充气停止，防护罩形成具备一定强度的充气外形，防护罩预制外形尺寸与发动机进气道内部尺寸匹配或与发动机的尾喷口尺寸匹配，防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定，安装过程操作简单，防护罩自充气，快速便捷。

Claims (3)

  1. 一种设有充气装置的飞机发动机防护罩，包括：充气腔（1），充气装置（2），圆型底布（3），固定拉带（4），气嘴（5），警示飘带（6），其特征在于，所述防护罩可自充气，充气装置（2）设置在充气腔（1）内部，充气腔（1）上设有气嘴（5），圆型底布（3）设置在充气腔（1）内侧，防护罩外侧设有固定拉带（4），警示飘带（6）设置在防护罩外侧，通过对充气装置（2）接通电源后启动，充气装置（2）对防护罩进行充气，达到一定的气压强度后充气停止，防护罩形成具备一定强度的充气外形，防护罩预制外形尺寸与发动机进气道内部或尾喷口内部尺寸匹配，防护罩安装时，充气外形通过挤压发动机需防护部件内壁从而胀紧固定。
  2. 根据权利要求1所述的一种设有充气装置的飞机发动机防护罩，其特征在于，所述防护罩的充气装置（2）采用电力驱动，设有高转速马达（202），马达上装有叶片（203），电源可以采用便捷电池型，电源可内置或外置，电源接通后充气装置（2）开始工作，通过充气装置上的出气口（206）对防护罩充气腔（1）进行充气，出气口（206）设有止逆密封垫（205），充气到防护罩充气腔（1）后可自密封。
  3. 根据权利要求1所述的一种设有充气装置的飞机发动机防护罩，其特征在于，所述防护罩的充气装置（2）上外壳可熔接边（201）与充气腔面料（207）熔接在一起，使充气装置（2）本体设置在防护罩充气腔（1）的内部，充气装置外侧的盖则在充气腔外侧，便于进气和连接电源。
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CN2549218Y (zh) * 2002-06-26 2003-05-07 颜杭 充气吸气两用泵
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