CN112918685A - Engine air inlet protection device with deicing capability - Google Patents
Engine air inlet protection device with deicing capability Download PDFInfo
- Publication number
- CN112918685A CN112918685A CN202110509135.0A CN202110509135A CN112918685A CN 112918685 A CN112918685 A CN 112918685A CN 202110509135 A CN202110509135 A CN 202110509135A CN 112918685 A CN112918685 A CN 112918685A
- Authority
- CN
- China
- Prior art keywords
- exciter
- engine
- protective net
- protective
- deicing
- 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
- 230000001681 protective effect Effects 0.000 claims abstract description 94
- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000008093 supporting effect Effects 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims description 28
- 239000007769 metal material Substances 0.000 claims description 12
- 230000001012 protector Effects 0.000 claims 5
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000006698 induction Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 230000005284 excitation Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003075 superhydrophobic effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
- 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
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
- B64D2033/022—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising bird or foreign object protections
-
- 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
- B64D2033/0233—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising de-icing means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention is suitable for the technical field of airplane deicing and provides an engine air inlet protection device with deicing capability, which comprises a support framework and a protective net; the protective net comprises a protective base body, and through holes are formed in the protective base body; an installation groove is formed in the supporting framework, an exciter is fixedly installed between the protection base body and the installation groove, and a gap is formed between the exciter and the protection base body of the protection net; the exciter comprises a pulse coil. The protection device can simultaneously solve the problem that the air input of the engine is reduced because foreign matters are sucked into the engine and the protection net is frozen; the engine deicing device is high in deicing efficiency, and can avoid the accident that the removed crushed ice is sucked into the engine to cause damage to the engine blades; the exciter of the invention is controlled independently, the exciter is started or works with high power aiming at the icing area or the area with serious icing, and the exciter of the other area does not work or works with low power, thereby reducing the energy consumption.
Description
Technical Field
The invention relates to the technical field of aircraft deicing, in particular to an engine air inlet protection device with deicing capability.
Background
The helicopter has various lifting environments, so that the air entering the engine contains dust, gravel, weeds and other impurities, and the danger that birds impact the engine in flight exists, so that a protection device needs to be installed at an air inlet of the engine to prevent the impurities, the birds and the like from being sucked into the engine. When the airplane flies in the air, if the airplane encounters icing meteorological conditions, the icing phenomenon can occur on the engine protection device, the air inlet flow field of the engine is seriously influenced, and the flying safety is threatened.
Patent CN110107405A discloses an engine protection grid that admits air, constitute the protection grid including the heating element of violently indulging the cross arrangement, this protection grid can block that large granule foreign matter inhales the engine, and the heating element generates heat under the condition that the engine freezes and prevents that the grid from freezing the jam to guarantee the security of engine long-time work under the environment that freezes.
The patent can prevent large particles from being sucked into the engine to a certain extent and can also prevent the protective net from being frozen. However, the electric heating mode is adopted for deicing, ice is easily sucked into the engine after being melted into water, and faults such as damage to engine blades and the like are caused; and the problems of low efficiency and large energy consumption exist in the electric heating deicing.
Disclosure of Invention
The invention aims to provide a safe and effective air inlet protection device for an engine, which can not only solve the problem that foreign matters are sucked into the engine, but also can safely and effectively solve the problem of icing of the protection device.
The invention is realized in this way, an engine intake protection device with deicing capability, comprising a supporting framework and a protective net;
the protective net comprises a protective base body, and through holes are formed in the protective base body;
an installation groove is formed in the supporting framework, an exciter is fixedly installed between the protection base body and the installation groove, and a gap is formed between the exciter and the protection base body of the protection net;
the exciter comprises a pulse coil; the protective net is made of metal materials.
Further, the support framework comprises at least two first supports arranged in parallel along a first direction and at least two second supports arranged in parallel along a second direction, the first direction is perpendicular to the second direction, and the first supports are intersected with the second supports.
Further, the mounting groove is formed in the intersection of the first support and the second support.
Furthermore, the bottom of the mounting groove is provided with at least two connecting holes for fixedly connecting the exciter in the mounting groove by adopting a connecting piece.
Furthermore, a wiring hole is also formed in the bottom of the mounting groove; a wiring groove is also formed in the supporting framework; the wiring hole is communicated with the wiring groove.
Further, the protective net is a curved surface or a plane thin plate, and the curved surface function of the supporting framework and the curved surface function of the protective net on the contact surface are the same.
Furthermore, a metal impact block is freely placed above the exciter in the installation groove, and a gap is reserved between the metal impact block and the protective base body of the protective net.
Further, the protective net is replaced by a non-metal material, a metal impact block is freely placed above the exciter in the installation groove, and a gap is reserved between the metal impact block and the protective base body of the protective net.
That is, the actuator of the present invention is provided with three implementations: 1. the protective net is made of metal materials, an induction magnetic field can be formed on the protective net at the moment, and the pulse force between the coil magnetic field and the magnetic field of the protective net enables the protective net to vibrate at high acceleration so that accumulated ice falls off; 2. the protective net is made of a non-metal material, an induction magnetic field cannot be formed on the protective net at the moment, the metal impact block generates the induction magnetic field, when pulse current passes through the pulse coil, the metal impact block generates the induction magnetic field, the protective net is quickly knocked by the metal impact block under the action of pulse force, and the protective net vibrates to cause ice on the protective net to fall off and be removed; 3. the protection network is metal material to add the metal and strike the piece, the protection network itself vibrates because induction magnetic field force this moment, also forms induction magnetic field on the metal strikes the piece and strikes the protection network fast, thereby reinforcing the deicing effect of protection network.
Further, the normal direction of the normal vector protection net at the bottom of the installation groove forms an angle α, and the value of the angle α is 0 ° < α <180 °.
Further, the surface of the protective net is coated with a super-hydrophobic material or a super-hydrophobic microstructure is prepared.
Further, the exciters are distributed unevenly on the surface of the protection net. Specifically, the distribution of the actuators may be determined according to the icing region on the protection net and the thickness of the ice layer in the icing region. The exciters are distributed more densely in the icing-prone area and the icing-serious area, and are distributed more sparsely in other areas. Accordingly, the density of the supporting skeleton varies.
Compared with the prior art, the engine air inlet protection device with the deicing capability at least has the following beneficial effects:
1. the protective net of the invention can prevent foreign matters from being sucked into the engine;
2. the protective net of the invention is provided with the through hole on the protective base body, and the protective base body can also prevent a part of the vibrated and crushed ice blocks from being sucked into the engine;
3. according to the invention, the exciter is arranged on the supporting framework, a pulse current is utilized to generate a magnetic field on the pulse coil, an induced eddy current is generated on the metal protective net or the metal impact block, and the pulse force between the coil magnetic field and the magnetic field of the protective net and/or the metal impact block enables the protective net to vibrate at high acceleration and/or the metal impact block to quickly strike the protective net, so that an ice layer on the protective net is broken and falls off, and the aim of deicing is achieved. The ice-free protective net can ensure the air inflow of the engine;
4. according to the invention, the accumulated ice on the protective net is removed in a vibration mode, and ice blocks fly out under the vibration of the protective net after an ice accumulation layer is broken, so that the possibility of being sucked into an engine is reduced;
5. the vibration exciter can arrange the installation direction of the exciter according to the optimal excitation direction obtained by simulation calculation, so that the deicing effect is ensured;
6. the present invention can also determine the distribution of the actuators according to the thickness of the ice layer in the ice formation area and the ice formation area on the protection net. The exciters are distributed more densely in the icing-prone area and the icing-serious area, and are distributed more sparsely in other areas;
7. the exciter of the invention is controlled independently, the exciter is started or works with high power aiming at the icing area or the area with serious icing, and the exciter of the other area does not work or works with low power, thereby reducing the energy consumption.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a guard according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a protection net according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a support armature of an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a mounting groove according to an embodiment of the present invention;
FIG. 5 is a block diagram of an actuator mounting structure according to an embodiment of the present invention;
FIG. 6 is a sectional view of an exciter mounting structure according to an embodiment of the invention;
FIG. 7 is a sectional view of an exciter mounting structure according to another embodiment of the invention;
FIG. 8 is a cross-sectional view of a mounting groove configuration of an embodiment of the present invention.
In the figure, 1-supporting framework, 11-mounting groove, 12-connecting hole, 13-wiring hole, 14-wiring groove, 15-first support, 16-second support, 2-protective net, 21-protective matrix, 22-through hole, 3-exciter and 31-metal impact block.
Detailed Description
The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are illustrative only and are not intended to be limiting.
An engine air inlet protection device with deicing capability is shown in fig. 1 and comprises a supporting framework 1 and a protective net 2; the protective net 2 is fixed on the supporting framework 1, preferably, the edge of the protective net 2 is in threaded connection with the supporting framework 1, so that the protective net is fixed.
The protection net 2 includes a protection base 21, and a through hole 22 is opened in the protection base 21, as shown in fig. 2.
It should be noted that the shape of the through hole 22 is circular in the present embodiment, but those skilled in the art will understand that the shape of the through hole is not necessarily circular, and the shape of the through hole is square, polygonal, oval, etc. since the protection substrate is to block foreign matters such as dust, flying sand, bird, etc. and the through hole is to ensure the passage of air, the circular through hole in the present embodiment is not to be taken as a limitation to the present invention. Meanwhile, the number and the size of the through holes in the protective net can be determined according to the air inflow requirement of the engine and the size of sundries in the lifting environment; the thickness of the protective net is comprehensively determined according to the selected material, the protective strength, the manufacturing method and the like; preferably, the mesh is metallic or non-metallic (if non-metallic, it will be described later), and the manufacturing method is 3D printing or subtractive machining.
The support framework 1 comprises at least two first supports 15 which are arranged in parallel along a first direction (X direction), at least two second supports 16 which are arranged in parallel along a second direction (Y direction), the X direction is vertical to the Y direction, and the first supports 15 are intersected with the second supports 16. The supporting frame 1 is provided with an installation groove 11 for fixedly installing the exciter 3, as shown in fig. 3 to 5.
In the embodiment, the installation grooves 11 are all arranged at the intersection positions of the first support 15 and the second support 16, which is only a preferred embodiment of the present invention, because the exciter 3 is installed in the installation groove, when the exciter is activated, an electric pulse on the exciter generates a magnetic field, and simultaneously an eddy current is induced on the metal material protection net, a large pulse force is generated between the coil magnetic field and the protection net magnetic field, and the pulse force will cause high-acceleration vibration of the protection net. In this case, the support frame may also be subjected to a large reaction force, and in consideration of structural strength and stability of the support frame, it is preferable to provide a mounting groove at a position where the first bracket and the second bracket intersect. Of course, if the strength of the supporting framework is high, the installation groove is arranged at the non-intersecting position of the first support or the second support, so that the invention can be realized.
The supporting framework is made of metal or nonmetal, and can be integrally formed or an assembly part of parts; the support frame 1 is manufactured by 3D printing or material reducing machining.
The protective net 2 can be a curved surface or a plane thin plate, and the curved surface functions of the supporting framework 1 and the protective net on the contact surface are the same, so that the supporting framework is guaranteed to have a good supporting effect on the protective net.
Fig. 6 shows a specific installation form of the exciter according to the present invention, the exciter 3 is disposed in the installation slot 11, and the protection base 21 of the protection net 2 completely covers the installation slot 11, that is, the exciter 3 is located between the installation slot 11 and the protection base 21 of the protection net 2, and a certain gap is formed between the exciter 3 and the protection base 21 of the protection net to prevent the exciter 3 and the protection net from contacting with each other, so as to ensure that eddy current can be induced on the protection net when strong pulse current is generated on the exciter.
The exciter 3 is mainly composed of a pulse coil. After the power is switched on, a pulse auxiliary circuit consisting of a capacitor, a diode, a rectifier and the like can generate strong pulse current in a short time, a magnetic field is generated on a pulse coil, and eddy current is induced on a metal or composite material protective net at the same time, so that great pulse force can be generated between the magnetic field of the coil and the magnetic field of the protective net; the pulse force can cause the vibration of the high acceleration of the protective net, and the ice layer on the protective net can be broken and loosened to fall off, so that the aim of deicing is fulfilled.
Preferably, a metal impact block 31 is also freely placed on the exciter 3, and the metal impact block 31 is directly placed on the exciter 3 without being fixedly connected. When pulse current passes through the pulse coil, an induction magnetic field is also generated on the metal impact block, the metal impact block quickly strikes the protective net under the action of pulse force, the protective net vibrates, ice on the protective net falls off and is removed, and the mode is better than the deicing effect of the mode which is simply vibrated by the protective net.
The exciter of the invention is provided with three implementation modes:
1. the protective net is made of metal materials, an induction magnetic field can be formed on the protective net at the moment, and the pulse force between the coil magnetic field and the magnetic field of the protective net enables the protective net to vibrate at high acceleration so that accumulated ice falls off;
2. the protective net is made of a non-metallic material, an induction magnetic field cannot be formed on the protective net at the moment, the metal impact block is required to generate the induction magnetic field, when pulse current passes through the pulse coil, the induction magnetic field is generated on the metal impact block, the protective net is quickly knocked by the metal impact block under the action of pulse force, and the protective net is vibrated, so that ice on the protective net is removed;
3. the protection network is metal material to add the metal and strike the piece, the protection network itself vibrates because induction magnetic field force this moment, also forms induction magnetic field on the metal strikes the piece and strikes the protection network fast, thereby reinforcing the deicing effect of protection network.
In order to fixedly mount the exciter 3 inside the mounting groove 11, as shown in fig. 8, the bottom of the mounting groove 11 is provided with a coupling hole 12 for fixedly mounting the exciter 3 at the bottom of the mounting groove 11 using a coupling member. The specific connection manner is various, and is not limited to the present invention, for example, the connection hole may be a threaded hole, or may be a non-threaded hole; the exciter 3 is provided with a corresponding threaded hole which can be a through threaded hole or a blind hole; the connecting member may be a screw, a screw rod and a nut, and any connecting means may be used as long as the actuator 3 can be fixed to the bottom of the mounting groove through the connecting hole.
In the present embodiment, the plane of the bottom of the mounting groove 11 is perpendicular to the normal direction of the protection net, and it should be noted that this arrangement of the mounting groove in the present embodiment is not the only one.
Specifically, since the exciter 3 is directly and fixedly installed at the bottom of the installation slot 11, and the installation direction of the exciter 3 can determine an optimal excitation direction according to the deicing condition, for example, the optimal excitation direction at each installation slot on the support framework is calculated in a simulation manner, and then the direction of the corresponding installation slot is designed according to the optimal excitation direction, that is, the normal vector at the bottom of the installation slot is the same as the optimal excitation direction, therefore, the normal vector at the bottom of the installation slot can be the same as the normal direction of the protection net or form an angle, and the value of the angle α is 0 ° < α <180 °.
Meanwhile, the bottom of the mounting groove 11 is also provided with a wiring hole 13, and a power line, a signal line and the like are contained in the wiring hole 13. The inside wiring groove 14 that has still set up of support, with wiring hole 13 intercommunication for the electric wire of all vibration exciters all is at the inside wiring of support, avoids abominable service environment to reduce the life etc. of electric wire.
Of course, in the present embodiment, the exciters 3 are uniformly distributed on the support framework, and in actual application, the distribution of the exciters may be determined according to the thickness of the ice layer in the icing area and the icing area on the protection net. The exciters are distributed more densely in the icing-prone area and the icing-serious area, and are distributed more sparsely in other areas. Accordingly, the density of the supporting skeleton varies.
The exciter 3 of the invention is convenient for individual control, that is, in the running process, only the exciter in the icing area is electrified by monitoring the icing condition on the protective net, so that the exciter in the icing area works; or different electric power is applied to the exciter according to different icing conditions of different areas on the protective net, for example, the applied power of the area with thick icing is high, and the applied power of the area with less icing is low, so that the aim of reducing energy consumption is fulfilled.
Meanwhile, in order to facilitate the ice layer on the protective net to fall off when the vibration exciter works, preferably, the surface of the protective net is coated with a super-hydrophobic material or is provided with a super-hydrophobic microstructure so as to reduce the adhesion between the ice layer and the protective net, reduce ice accretion on one hand, and enable the ice layer which is stressed and broken to fall off from the protective net more easily on the other hand, thereby further reducing energy consumption and improving deicing efficiency.
According to the protective device, accumulated ice on the protective net is vibrated to be broken and then falls off through vibration of the vibration exciter, and broken accumulated ice blocks can directly fly out under the vibration effect of the protective net and cannot be sucked into an engine; in addition, the protective base body of the protective net is provided with through holes, so that fallen crushed ice is blocked by the base body of the protective net, and the crushed ice can be prevented from being sucked into an engine. Thus, compared with the prior art, particularly the prior art mentioned in the background art, the invention can greatly reduce the engine accidents caused by the fact that ice or water after being deiced is sucked into the engine.
The deicing method adopting the protective device comprises the following steps:
1. detecting an icing range and an icing thickness;
2. when the icing range meets the deicing requirement, determining an exciter needing to be enabled and an enabling voltage value according to the icing range and the icing thickness;
3. setting deicing parameters, and starting a pulse controller to deice;
4. detecting the deicing condition, and judging whether the deicing requirement is met, wherein the deicing requirement is as follows: the ice is completely removed or meets the air intake requirements of the engine;
5. if the deicing requirement is met, executing a step 6, and if the deicing requirement is not met, executing a step 7;
6. stopping deicing;
7. steps 1-5 are performed sequentially.
The engine air inlet protection device with the deicing capability can simultaneously solve the problem that the air input of the engine is reduced because foreign matters are sucked into the engine and the protective net is frozen; the engine deicing device is high in deicing efficiency, and can avoid engine accidents caused by the fact that the removed crushed ice or water is sucked into the engine; the exciter of the invention is controlled independently, the exciter is started or works with high power aiming at the icing area or the area with serious icing, and the exciter of the other area does not work or works with low power, thereby reducing the energy consumption.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An engine air inlet protection device with deicing capability is characterized by comprising a supporting framework (1) and a protective net (2);
the protective net (2) comprises a protective base body (21), and a through hole (22) is formed in the protective base body (21);
an installation groove (11) is formed in the supporting framework (1), an exciter (3) is fixedly installed between the protection base body (21) and the installation groove (11), and a gap is formed between the exciter (3) and the protection base body (21) of the protection net (2);
the exciter (3) comprises a pulse coil; the protective net (2) is made of metal materials.
2. The engine intake air protector with deicing capability according to claim 1, characterized in that said supporting framework (1) comprises at least two first brackets (15) arranged in parallel along a first direction, at least two second brackets (16) arranged in parallel along a second direction, said first direction and said second direction being perpendicular, said first brackets (15) intersecting said second brackets (16).
3. The engine intake air protector with deicing capability according to claim 2, characterized in that the mounting groove (11) opens at the intersection of the first bracket (15) and the second bracket (16).
4. The engine intake air protector with deicing capability according to claim 3, characterized in that the bottom of the mounting groove (11) is provided with at least two connecting holes (12) for fixedly connecting the exciter (3) in the mounting groove (11) by using connecting pieces.
5. The intake air protection device for the engine with the deicing capability according to claim 3, characterized in that a wiring hole (13) is further arranged at the bottom of the mounting groove (11); a wiring groove (14) is also arranged in the supporting framework (1); the wiring hole (13) is communicated with the wiring groove (14).
6. The engine intake protection device with deicing capability according to claim 2, characterized in that the protective net (2) is a curved or planar thin plate, and the curved function of the support skeleton (1) and the protective net (2) on the contact surface is the same.
7. The engine intake air protector with deicing capability according to claim 1, characterized in that a metal impact block (31) is freely placed above the exciter (3) in the mounting groove (11), and a gap is formed between the metal impact block (31) and the protective base (21) of the protective net (2).
8. The engine intake air protective device with deicing capability according to claim 1, characterized in that the protective net (2) is replaced by a non-metallic material, and a metal impact block (31) is freely placed above the exciter (3) in the mounting groove (11), and a gap is formed between the metal impact block (31) and the protective base body (21) of the protective net (2).
9. The intake air protector for the engine with the deicing capability according to any one of claims 2-6, wherein the normal direction of the normal vector protection net at the bottom of the mounting groove (11) is at an angle α, and the value of the angle α is 0 ° < α <180 °.
10. The engine intake guard with deicing capability according to claim 2, characterized in that the actuators (3) are non-uniformly distributed over the surface of the protective net (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509135.0A CN112918685B (en) | 2021-05-11 | 2021-05-11 | Engine air inlet protection device with deicing capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509135.0A CN112918685B (en) | 2021-05-11 | 2021-05-11 | Engine air inlet protection device with deicing capability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112918685A true CN112918685A (en) | 2021-06-08 |
| CN112918685B CN112918685B (en) | 2021-12-07 |
Family
ID=76174774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110509135.0A Active CN112918685B (en) | 2021-05-11 | 2021-05-11 | Engine air inlet protection device with deicing capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112918685B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092728A (en) * | 1992-12-30 | 1994-09-28 | B.F.谷德里奇公司 | Compressible nose dynamic deicer |
| CN106005449A (en) * | 2016-06-08 | 2016-10-12 | 白德忠 | Bird collision prevention protection net of airplane jet engine |
| CN106828873A (en) * | 2017-02-15 | 2017-06-13 | 南京航空航天大学 | A kind of aerofoil profile leading edge and its forming method with piezoelectricity deicing function |
| CN107127190A (en) * | 2017-05-31 | 2017-09-05 | 中国空气动力研究与发展中心低速空气动力研究所 | The passive anti-icing equipment of master and its method that super hydrophobic material and vibration deicing are coupled |
| CN107985607A (en) * | 2017-11-02 | 2018-05-04 | 成都飞机工业（集团）有限责任公司 | A kind of unmanned plane icing protective device |
| US20190316521A1 (en) * | 2018-04-12 | 2019-10-17 | Stephanie Fraser- Beekman | Debris Deflector for a Jet Engine |
| CN111071460A (en) * | 2018-10-19 | 2020-04-28 | 空中客车运营简化股份公司 | Nacelle for an aircraft engine |
-
2021
- 2021-05-11 CN CN202110509135.0A patent/CN112918685B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092728A (en) * | 1992-12-30 | 1994-09-28 | B.F.谷德里奇公司 | Compressible nose dynamic deicer |
| CN106005449A (en) * | 2016-06-08 | 2016-10-12 | 白德忠 | Bird collision prevention protection net of airplane jet engine |
| CN106828873A (en) * | 2017-02-15 | 2017-06-13 | 南京航空航天大学 | A kind of aerofoil profile leading edge and its forming method with piezoelectricity deicing function |
| CN107127190A (en) * | 2017-05-31 | 2017-09-05 | 中国空气动力研究与发展中心低速空气动力研究所 | The passive anti-icing equipment of master and its method that super hydrophobic material and vibration deicing are coupled |
| CN107985607A (en) * | 2017-11-02 | 2018-05-04 | 成都飞机工业（集团）有限责任公司 | A kind of unmanned plane icing protective device |
| US20190316521A1 (en) * | 2018-04-12 | 2019-10-17 | Stephanie Fraser- Beekman | Debris Deflector for a Jet Engine |
| CN111071460A (en) * | 2018-10-19 | 2020-04-28 | 空中客车运营简化股份公司 | Nacelle for an aircraft engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112918685B (en) | 2021-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9469408B1 (en) | Ice protection system and method | |
| EP1495963A2 (en) | Method and apparatus for noise abatement and ice protection of an aircraft engine nacelle inlet lip | |
| US6129314A (en) | Hybrid deicer with element sequence | |
| Goraj | An overview of the deicing and anti-icing technologies with prospects for the future | |
| US6283411B1 (en) | Hybrid deicer with element sequence control | |
| US8181900B2 (en) | Acoustic coating for an aircraft incorporating a frost treatment system by joule effect | |
| EP2292514B1 (en) | Ice protection system and method | |
| US5904322A (en) | Hybrid deicer | |
| US20060196994A1 (en) | Hybrid electrical ice protection system and method including an energy saving mode | |
| US9067679B2 (en) | Heated screen for air intake of aircraft engines | |
| EP2386750A1 (en) | De-icing and/or anti-icing of a wind turbine component by vibrating a piezoelectric material | |
| JP2013545061A (en) | Method and apparatus for deicing structural parts | |
| EP2740210A2 (en) | Method and apparatus for inhibiting formation of and/or removing ice from aircraft components | |
| US11192639B2 (en) | Aerodynamics improvement device for an aircraft and aircraft equipped with such device | |
| US20140293497A1 (en) | Method and Apparatus for Providing a Current Return Network in an Aircraft Structure | |
| CN112918685B (en) | Engine air inlet protection device with deicing capability | |
| CN111688912B (en) | Plasma air suction device for wing drag reduction | |
| CN111114793A (en) | Icing detection system capable of detecting large supercooled water drops | |
| CN114655443A (en) | Deicing device, system and method for airplane | |
| CN112780507B (en) | Deicing method applied to wind turbine blade | |
| EP1873060B1 (en) | Hybrid electrical ice protection system and method including an energy saving mode | |
| WO2023144563A1 (en) | Piezo de-icing and anti-icing systems and methods | |
| EP0872417A1 (en) | Hybrid deicer | |
| RU2088483C1 (en) | Anti-icing device for flying vehicle | |
| Li et al. | An Experimental Study of the Dynamic Ice Accreting Process over a Rotating Aero-engine Fan Model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |