Fuel regulator control device optimization structure based on additive manufacturing

Abstract

The invention discloses a fuel regulator control device optimization structure based on additive manufacturing, which comprises a shell part and a runner part, the runner part is arranged in the shell part, the shell part comprises metal shells, a wire slot structure, a cavity structure and a lattice structure, the metal shells are connected through the lattice structure, and the metal shells are connected through the wire slot structure. The trunking structures are located on the bottom face and the side face of the shell part, and the cavity structures are located in the connection areas of the lattice structures. The flow channel part comprises an electromagnetic valve, a main oil way, an auxiliary oil way and a pipeline, and the main oil way, the auxiliary oil way and the electromagnetic valve are connected through the pipeline. According to the fuel regulator control device optimization structure based on additive manufacturing, the weight is reduced, meanwhile, the strength and rigidity of the whole part structure are guaranteed, and uniform and uniform-section smooth transition of a threading operation runner structure is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel regulators, and in particular to an optimized structure of a fuel regulator control device based on additive manufacturing. Background Art

[0002] The afterburner fuel control device is planned to be equipped with the engine. In order to further improve product performance and meet the technical requirements of the engine, it is necessary to improve the design, trial production and verification of some components and accessories to narrow the gap between the control system indicators of the engine and the fourth-generation engine and carrier-based aircraft.

[0003] The early control device was based on the machining-casting process. Starting from the system technical indicators and reliability, maintainability, safety, security, testability and environmental adaptability, combined with Honglin's experience in the development of similar products, the engineering design of the afterburner fuel control device was completed. When the first unit was delivered, the product principle architecture was reasonable, and the functional performance data met the requirements of the host, but the weight of the product exceeded the expected design indicators, so it was necessary to conduct a weight reduction study on the afterburner fuel control device. The afterburner fuel control device is mainly composed of self-made components and purchased parts. Considering that the weight of the shell accounts for more than 50% of the self-made components (the main reason for the overweight of the product), this project intends to use the shell as the object of this optimization and weight reduction. Requirements: After the shell is reduced in weight, it must still meet the carrier of other components and oil circuits to ensure that the product strength is qualified, the working principle oil circuit connection is correct, and the flow channel design is reasonable. Summary of the invention

[0004] The purpose of the present invention is to provide an optimized structure of a fuel regulator control device based on additive manufacturing, which reduces the weight while ensuring the strength and rigidity of the overall part structure, facilitates the threading operation, and has a uniform and smooth transition of the flow channel structure with equal cross-sections.

[0005] The present invention provides an optimized structure of a fuel regulator control device based on additive manufacturing, including a shell part and a flow channel part. The flow channel part is arranged inside the shell part. The shell part includes a metal shell, a wire slot structure, a cavity structure and a lattice lattice structure. The metal shells are connected by the lattice lattice structure. The wire slot structure is located on the bottom and side surfaces of the shell part, and the cavity structure is located in the intersection area of ​​the lattice lattice structure. The flow channel part includes a solenoid valve, a main oil circuit, an auxiliary oil circuit and a pipeline. The main oil circuit, the auxiliary oil circuit and the solenoid valve are connected by a pipeline.

[0006] Preferably, the main oil circuit includes an inlet and an outlet, the number of the inlet is one, the number of the outlets is three, and the outlets include a first outlet, a second outlet and a third outlet.

[0007] Preferably, the inlet is a pressure inlet boundary condition, and the inlet given pressure is 7.5 MPa.

[0008] Preferably, the three outlets are mass flow boundary conditions, the mass flow of the first outlet is 2600 L / h, the mass flow of the second outlet is 7400 L / h, and the mass flow of the third outlet is 12400 L / h.

[0009] Preferably, the material in the main oil circuit is No. 3 jet fuel processed from natural crude oil or its distillate oil, and the density and kinematic viscosity of the fuel are 800 kg / m 3 and 4.625mm 2 / s.

[0010] Preferably, the wire trough structure adopts an envelope wall thickness design, and the wall thickness of the wire trough structure is 1.5 mm. During the design process of the wire trough structure, the metal shell spatially extends its bottom or side structure until adjacent wall thickness features appear; the wire trough structure adopts large-scale chamfering treatment.

[0011] Preferably, the cavity structure adopts an oblique cross rib structure.

[0012] Preferably, the lattice lattice structure adopts a topologically optimized octahedral structure with a porosity of 85%.

[0013] Therefore, the present invention adopts the above-mentioned optimized structure of the fuel regulator control device based on additive manufacturing, which reduces the weight while ensuring the strength and rigidity of the overall part structure, facilitates the threading operation, and has a uniform and smooth transition of the flow channel structure with equal cross-sections.

[0014] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a shell portion of an optimized structure of a fuel regulator control device based on additive manufacturing according to the present invention;

[0016] Figure 2 It is a schematic diagram of the overall structure of the flow channel part of the fuel regulator control device with optimized structure based on additive manufacturing according to the present invention;

[0017] Figure 3 This is a schematic diagram of the overall structure of the main oil circuit portion of an optimized structure of a fuel regulator control device based on additive manufacturing in the present invention.

[0018] Reference numerals

[0019] 1. Shell part; 2. Flow channel part; 11. Metal shell; 12. Wire slot structure; 13. Cavity structure; 14. Lattice lattice structure; 21. Solenoid valve; 22. Main oil circuit; 23. Auxiliary oil circuit; 24. Pipeline; 25. Inlet; 26. Outlet; 261. First outlet; 262. Second outlet; 263. Third outlet. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0021] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0022] The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprises" and similar terms mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] Embodiment 1

[0024] like Figure 1-Figure 3 As shown, the optimized structure of a fuel regulator control device based on additive manufacturing of the present invention includes a shell part 1 and a flow channel part 2. The flow channel part 2 is provided inside the shell part 1. The shell part 1 includes a metal shell 11, a wire slot structure 12, a cavity structure 13, and a lattice lattice structure 14. The metal shells 11 are connected by the lattice lattice structure 14. The wire slot structure 12 is located on the bottom and side surfaces of the shell part 11, and the cavity structure 13 is located at the intersection of the lattice lattice structure 14.

[0025] The flow channel part 2 includes a solenoid valve 21, a main oil circuit 22, an auxiliary oil circuit 23 and a pipeline 24. The main oil circuit 22 includes an inlet 25 and an outlet 26. The number of the inlet 25 is one, the number of the outlet 26 is three, and the outlet 26 includes a first outlet 261, a second outlet 262 and a third outlet 263. The inlet 25 is a pressure inlet boundary condition, and the given pressure of the inlet 25 is 7.5MPa. The three outlets 26 are mass flow boundary conditions, and the mass flow of the first outlet 261 is 2600L / h, the mass flow of the second outlet 262 is 7400L / h, and the mass flow of the third outlet 263 is 12400L / h. The material in the main oil circuit 22 is selected from natural crude oil or its distillate oil processed No. 3 jet fuel, and the density and kinematic viscosity of the fuel are taken as 800kg / m 3 and 4.625mm 2 / s,

[0026] The wire trough structure 12 adopts an envelope wall thickness design, and the wall thickness of the wire trough structure 12 is 1.5 mm. During the design process of the wire trough structure 12, the metal shell spatially extends its bottom surface or side structure until adjacent wall thickness features appear; the wire trough structure 12 adopts large-scale chamfering treatment;

[0027] In the envelope wall thickness design of the wire trough structure 12, the wall thickness is set to 1.5 mm to reduce the weight of the structure while ensuring the process forming quality; at the same time, in the design process of the wire trough structure 12, the shell further extends its bottom or side structure in space until adjacent wall thickness features appear, which can further reduce the weight while expanding the volume of the wire trough structure 12; finally, in the design process of the wire trough structure 12, large-scale chamfering treatment is performed on the structural turning points to facilitate threading operations.

[0028] The cavity structure 13 adopts an oblique cross rib structure, which reduces the weight while ensuring the strength and rigidity of the overall part structure.

[0029] The lattice structure 14 adopts a topologically optimized octahedral structure with a porosity of 85%;

[0030] The main oil circuit 22, the auxiliary oil circuit 23 and the solenoid valve 21 are connected by a pipeline 24. While ensuring smooth transition, the cross-sectional area of ​​the flow channel is also guaranteed to remain unchanged, and the total number of flow channels is greatly reduced. At the same time, the flow channel path is shortened, the flow channel structure is uniform, and the cross-section is smoothly transitioned, which can further reduce the flow resistance and improve the fluid properties of the product.

[0031] Therefore, the present invention adopts the above-mentioned optimized structure of the fuel regulator control device based on additive manufacturing, which reduces the weight while ensuring the strength and rigidity of the overall part structure, facilitates the threading operation, and has a uniform and smooth transition of the flow channel structure with equal cross-sections.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An optimized structure of a fuel regulator control device based on additive manufacturing, characterized in that: It includes a shell part and a flow channel part. The flow channel part is arranged inside the shell part. The shell part includes a metal shell, a wire slot structure, a cavity structure and a lattice lattice structure. The metal shells are connected by the lattice lattice structure. The wire slot structure is located on the bottom and side surfaces of the shell part. The cavity structure is located at the junction area of ​​the lattice lattice structure. The flow channel part includes a solenoid valve, a main oil circuit, an auxiliary oil circuit and a pipeline. The main oil circuit, the auxiliary oil circuit and the solenoid valve are connected by a pipeline.

2. The optimized structure of a fuel regulator control device based on additive manufacturing according to claim 1, characterized in that: The main oil circuit includes an inlet and an outlet. The number of the inlet is one, the number of the outlets is three, and the outlets include a first outlet, a second outlet, and a third outlet.

3. The optimized structure of a fuel regulator control device based on additive manufacturing according to claim 2, characterized in that: The inlet is a pressure inlet boundary condition, and the inlet given pressure is 7.5MPa.

4. The optimized structure of a fuel regulator control device based on additive manufacturing according to claim 2, characterized in that: The three outlets are mass flow boundary conditions, the mass flow of the first outlet is 2600 L / h, the mass flow of the second outlet is 7400 L / h, and the mass flow of the third outlet is 12400 L / h.

5. The optimized structure of a fuel regulator control device based on additive manufacturing according to claim 2, characterized in that: The material in the main oil circuit is No. 3 jet fuel made from natural crude oil or its distillate oil. The density and kinematic viscosity of the fuel are 800kg / m 3 and 4.625mm 2 / s.

6. The optimized structure of a fuel regulator control device based on additive manufacturing according to claim 1, characterized in that: The wire trough structure adopts an envelope wall thickness design. The wall thickness of the wire trough structure is 1.5mm. During the design process of the wire trough structure, the metal shell spatially extends its bottom or side structure until adjacent wall thickness features appear. The wire duct structure adopts large-scale chamfering treatment.

7. The optimized structure of a fuel regulator control device based on additive manufacturing according to claim 1, characterized in that: The cavity structure adopts an oblique cross rib structure.

8. The optimized structure of a fuel regulator control device based on additive manufacturing according to claim 1, characterized in that: The lattice structure adopts a topologically optimized octahedral structure with a porosity of 85%.

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