Flame strip spreading device integrally integrated with engine pod
The integrated flame propagation device in the engine nacelle solves the problems of high resistance and limited flame quantity in existing devices, achieving efficient flame combustion and improving UAV performance while reducing resource waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 四川腾盾科技有限公司
- Filing Date
- 2025-03-04
- Publication Date
- 2026-04-24
AI Technical Summary
Most existing flare spraying devices are directly mounted on the outside of the UAV, resulting in a large increase in drag. In addition, the flare size is small and the number is limited, which affects the aerial operation performance of large fixed-wing UAVs. Furthermore, the design and adaptation work is complicated, resulting in a waste of resources.
Design a flame spraying device that is integrated with the engine nacelle. The flames are arranged in a gradient of regular hexagons and installed at the rear end of the engine nacelle. They are fully combusted by slipstream. The device has a straightened shape and is fixed with fasteners, enabling modular assembly and disassembly.
It increases the loading capacity and combustion efficiency of flame strips, reduces the increase in drag on drones, simplifies the operation process, reduces resource waste, and improves the effectiveness of artificial weather modification operations.
Smart Images
Figure CN224159425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weather modification by unmanned aerial vehicles (UAVs), and more specifically, to a flame spraying device integrated with an engine nacelle. Background Technology
[0002] Weather modification refers to the artificial influence of local atmospheric physical and chemical processes through technological means to mitigate or avoid meteorological disasters and make rational use of climate resources. With the development of drone technology, more and more weather modification operations are choosing to use large fixed-wing drone platforms.
[0003] Using drones to carry flare seeding devices to directly seed catalysts into clouds offers greater mobility and a larger payload compared to ground seeding or seeding using rocket warheads or anti-aircraft shells. Before large fixed-wing drones take off, flares needed for weather modification operations must be loaded onto the drones from the ground; therefore, a drone-based flare seeding device needs to be designed.
[0004] Most existing flare-spreading devices are directly mounted on the outside of the drone, which significantly increases drag and carries small flares in limited quantities, greatly impacting the performance of large fixed-wing drones in aerial operations. As the demand for weather modification operations increases, the size and payload of flares on the market are growing, forcing drone design engineers to design and adapt large fixed-wing drone platforms for weather modification operations. This involves highly repetitive and labor-intensive work, resulting in a significant waste of human, material, and financial resources.
[0005] Therefore, it is necessary to provide a new type of integrated flame spraying device to solve the above-mentioned technical problems. Utility Model Content
[0006] The purpose of this invention is to provide a flame spraying device that is widely adaptable and easy to use.
[0007] The technical solution of this utility model is: a flame stripe dispersing device integrated with the engine nacelle, mainly comprising: a flame stripe for artificial weather modification operations; and a flame stripe dispersing device for arranging the flame stripe in a hexagonal gradient, wherein the shape of the flame stripe dispersing device is rectified and used to connect to the rear frame of the UAV engine nacelle structure.
[0008] The flame strips are arranged in a gradient of regular hexagons on the flame strip dispersing device, making full use of space and accommodating large-sized and numerous flame strips. The flame strip dispersing device is installed at the rear of the engine nacelle, allowing the UAV to fully utilize the slipstream of the engine nacelle to ensure complete combustion of the flame strips while in flight, greatly increasing the effectiveness of artificial weather modification operations.
[0009] Furthermore, the shape of the flame spraying device's outer shell has been rectified, resulting in minimal increase in drag for large fixed-wing UAV platforms.
[0010] The flame spraying device is fixed to the rear frame of the engine nacelle structure with fasteners, which facilitates disassembly and assembly. When large fixed-wing UAV platforms need to carry out artificial weather modification operations, the engine nacelle tail cover can be removed and the flame spraying device can be installed in situ. After the artificial weather modification operation is completed, the flame spraying device can be removed and the engine nacelle tail cover can be replaced, thus realizing modularization of components.
[0011] The advantages of this utility model compared with the prior art are as follows:
[0012] 1. The flame spreader integrated with the engine nacelle has a simple mechanical structure, high reliability, wide applicability, convenient transportation, and simple use.
[0013] 2. The flame spraying device, which is integrated with the engine nacelle, is arranged in a hexagonal gradient, making full use of space and capable of carrying large-sized and numerous flames.
[0014] 3. The flame propagation device, which is integrated with the engine nacelle, is installed at the rear end of the UAV engine nacelle. When the UAV is flying in the air, it can make full use of the slipstream of the engine nacelle to ensure that the flame is fully burned, thereby improving the effectiveness of artificial weather modification operations.
[0015] 4. The shape of the flame spraying device shell, which is integrated with the engine nacelle, has been rectified, resulting in minimal increase in drag for large fixed-wing UAV platforms.
[0016] 5. The flame spreader, which is integrated with the engine nacelle, is connected to the rear frame of the engine nacelle structure via fasteners, thus achieving modular component design. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the engine pod in this utility model.
[0018] Figure 2 This is a schematic diagram of the flame spraying device that is integrated with the engine nacelle in this utility model.
[0019] Figure 3 This is a schematic diagram of the flame strip spreading device in this utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Engine nacelle; 11. Rear frame of engine nacelle structure; 12. Engine nacelle tail cover; 2. Flare spraying device; 21. Flare; 22. Flare spraying device housing. Detailed Implementation
[0022] The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments. However, the present invention is not limited to these embodiments, and any improvements or substitutions based on these embodiments shall still fall within the scope of protection claimed by the claims of the present invention.
[0023] like Figure 1 As shown, in actual use, the tail cover 12 of the engine nacelle of the large fixed-wing UAV needs to be removed from the rear frame 11 of the engine nacelle structure.
[0024] like Figure 2 As shown, after removing the engine nacelle tail cover 12, the flare spraying device 2 is installed in situ and connected to the engine nacelle structure rear frame 11 via fasteners, achieving modular component design. When the UAV is in flight, the flare spraying device 2, located at the rear end of the engine nacelle 1, can fully utilize the slipstream of the engine nacelle 1 to ensure complete combustion of the flare 21, improving the effectiveness of weather modification operations.
[0025] like Figure 3 As shown, the flames 21 in the flame distribution device 2 are arranged in a gradient of regular hexagons, making full use of space and accommodating large flames of various sizes and quantities. The outer shell 22 of the flame distribution device has been rectified in shape, resulting in minimal drag increase for large fixed-wing UAV platforms.
[0026] As described above, this utility model can be implemented well.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A flame thrower spreading device integrated as a unit with an engine nacelle, characterized by: Includes an engine nacelle (1), which has an engine nacelle structure rear frame (11) and an engine nacelle tail cover (12); and a flame spraying device (2) for in-situ replacement, which has a flame (21) for artificial weather modification operations and a flame spraying device shell (22) with a rectified shape.
2. A flame thrower device integrated with an engine pod as claimed in claim 1, wherein: The flame spreader (2) can be connected to the rear frame (11) of the engine nacelle structure and directly replaced with the engine nacelle tail cover (12) in situ, realizing modularization of components.
3. A flame jet dispersal device integrated as a unit with an engine nacelle according to claim 1, characterized in that: The flame spraying device (2) is installed at the rear end of the engine nacelle (1). When the UAV is flying in the air, it can make full use of the slipstream of the engine nacelle (1) to make the flame (21) burn fully, thereby improving the effect of artificial weather modification operations.
4. A flame jet dispersal device integrated as a unit with an engine nacelle according to claim 1, characterized in that: The flame strips (21) are arranged in a hexagonal gradient on the flame strip dispersing device (2), making full use of the space and accommodating large flame strips in large size and quantity.
5. A flame jet dispersal device integrated as a unit with an engine nacelle according to claim 1, characterized in that: The outer shell (22) of the flame spraying device is rectified, resulting in a small increase in drag on the large fixed-wing UAV platform.