Flow adjusting device and engine
By designing a flow regulation device that includes a sleeve, motor, housing, rotating parts, and adjustment components, the problem of inaccurate flow mixing ratio adjustment in existing technologies has been solved, enabling precise flow control and reliable recovery of rockets, and reducing production costs.
Patent Information
- Application Number
- CN202520042338.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-08
AI Technical Summary
In existing technologies, the mixing ratio of kerosene and oxygen in the auxiliary pipeline cannot be precisely adjusted according to a preset ratio, which affects the reliability of rocket recovery and reuse.
A flow regulation device is designed, including a sleeve, a motor, a housing, a rotating component, and an adjustment assembly. The motor drives the rotating component to move the conical adjustment component within the medium channel, thereby changing the local resistance and flow rate within the medium channel and achieving precise flow control.
It enables precise regulation of the medium flow rate, improves the reliability and reusability of rocket recovery, and reduces production costs.
Smart Images
Figure CN223767619U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aerospace equipment technology, and in particular to a flow regulation device and an engine. Background Technology
[0002] With the rapid development of the space industry, reusable rockets have become a trend. By adjusting the mixing ratio of kerosene and oxygen in the auxiliary path, the thrust of the engine can be changed, enabling a soft landing and making the rocket reusable, thus greatly reducing the construction cost of the rocket. However, in related technologies, the mixing ratio of kerosene and oxygen in the auxiliary path cannot be precisely adjusted according to the preset ratio, which has an adverse effect on rocket recovery. Utility Model Content
[0003] This application is made in view of the above-mentioned problems. This application provides a flow regulating device and an engine.
[0004] According to one aspect of this application, a flow regulating device is provided, comprising:
[0005] Sleeve, motor, housing, rotating component and adjusting assembly; the sleeve has a limiting channel in the longitudinal direction, one end of the limiting channel is connected to the motor, the other end of the limiting channel is connected to the housing, the rotating component and adjusting assembly are located in the limiting channel, the motor is connected to the adjusting assembly through the rotating component, and the medium flows in and / or flows out through the side wall of the housing;
[0006] The adjustment component includes a connector and a tapered adjustment component. The connector is slidably connected to the inner wall of the limiting channel. One end of the connector is connected to the rotating component, and the other end of the connector is connected to the tapered adjustment component. The housing has a medium channel in the longitudinal direction. The tapered adjustment component extends into the medium channel, and the end face of the tapered adjustment component extending into the medium channel is a tapered surface.
[0007] Compared with the prior art, the flow regulating device provided in this application includes a sleeve, a motor, a housing, a rotating component, and an regulating assembly. The sleeve has a limiting channel in the longitudinal direction. One end of the limiting channel is connected to the motor, and the other end is connected to the housing. The rotating component and the regulating assembly are located within the limiting channel. The motor is connected to the regulating assembly via the rotating component, and the medium flows in and / or out through the side wall of the housing. During this process, the motor transmits rotational power to the regulating assembly via the rotating component, driving the regulating assembly to move, thereby achieving the function of regulating the flow rate of the medium. Specifically, the regulating assembly in this application includes a connecting component and a conical regulating component. The connecting component is slidably connected to the inner side wall of the limiting channel. One end of the connecting component is connected to the rotating component, and the other end is connected to the conical regulating component. Therefore, the connecting component can perform stable linear movement within the range defined by the limiting channel. One end of the connecting component is connected to the rotating component, which can effectively receive the power transmitted from the motor via the rotating component. The other end is connected to the conical regulating component, thereby transmitting power to the conical regulating component, causing it to adjust its position, and achieving the regulation of the flow rate of the medium in the medium channel. Furthermore, the conical adjusting member extends into the medium channel within the housing. During this process, driven by the motor, the rotating component causes the connecting component to slide against the inner wall of the limiting channel, changing the depth of the conical adjusting member's insertion into the medium channel. This alters the local resistance and flow rate within the medium channel. When the conical adjusting member extends to a greater depth, the local resistance within the medium channel increases. According to the principle of energy conservation, the flow velocity within the entire medium channel decreases, thus reducing the flow rate exiting from the side wall of the housing. Conversely, when the conical adjusting member retracts slightly, the local resistance within the medium channel decreases, the flow velocity increases, and the flow rate exiting from the side wall of the housing also increases, thereby enabling control of the medium flow rate. Based on this, since the end face of the conical adjusting member extending into the medium channel in this application is a conical surface, the annular flow area formed between the conical surface and the inner wall of the medium channel gradually changes as the depth of the conical adjusting member's insertion into the medium channel changes, enabling more precise adjustment of the medium flow rate.
[0008] It is evident that the flow regulating device provided in this application has a simple structure and can reliably regulate the flow rate of the medium.
[0009] According to another aspect of this application, an engine is provided, including the flow regulating device described above.
[0010] Compared with the prior art, the beneficial effects of the engine provided in this application are the same as those of the above-mentioned flow regulation device, and will not be repeated here.
[0011] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description
[0012] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the accompanying drawings, the same reference numerals generally represent the same components or steps.
[0013] Figure 1 A schematic diagram of one embodiment of the flow regulating device of this application is shown;
[0014] Figure 2 Another structural schematic diagram of the flow regulating device according to an embodiment of this application is shown;
[0015] Figure 3 A partially enlarged view of the limiting groove according to an embodiment of this application is shown.
[0016] Figure label:
[0017] 1-Sleeve; 101-Limiting channel; 102-Second guide groove; 2-Motor; 201-Motor mounting base; 202-Motor connector; 203-Motor fastener; 3-Housing; 301-Medium channel; 3011-First section medium channel; 3012-Second section medium channel; 4-Rotating component; 401-Rotating component sleeve; 402-Bearing; 403-Bearing sleeve; 5-Adjusting assembly; 501-Connector; 5011-First guide groove; 5012-Limiting groove; 50121-First section limiting groove; 50122-Second section limiting groove; 50123-Retracting groove; 502-Conical adjusting component; 5021-Factor; 6-Positioning component; 7-Guide sleeve; 8-Positioning connector; 9-Elastic seal; and 10-Locking component. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this application more apparent, exemplary embodiments according to this application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.
[0019] With the rapid development of the space industry, reusable rockets have become a trend. When a rocket approaches the recovery platform, it needs to reduce thrust to achieve a soft landing. By adjusting the mixture ratio to reduce the turbopump speed, the amount of fuel and oxidizer entering the main combustion chamber is reduced, thereby reducing thrust and allowing the rocket to descend and land at a suitable speed, making it reusable and significantly reducing the rocket's construction cost. However, in related technologies, the mixing ratio of kerosene and oxygen in the auxiliary path cannot be precisely adjusted according to a preset ratio, which can adversely affect rocket recovery.
[0020] To address the aforementioned problems, this application provides a flow regulating device with a simple structure that can more reliably regulate the flow rate of the medium. Figure 1 A schematic diagram of one structure of the flow regulating device according to an embodiment of this application is shown. Figure 2 A schematic diagram of another structure of the flow regulating device according to an embodiment of this application is shown. For example... Figure 1 and Figure 2 As shown, the flow regulating device includes a sleeve 1, a motor 2, a housing 3, a rotating component 4, and an adjusting assembly 5. The sleeve 1 has a limiting channel 101 in the longitudinal direction. One end of the limiting channel 101 is connected to the motor 2, and the other end of the limiting channel 101 is connected to the housing 3. The rotating component 4 and the adjusting assembly 5 are disposed within the limiting channel 101. The motor 2 is connected to the adjusting assembly 5 through the rotating component 4. The medium flows in and / or flows out through the side wall of the housing 3.
[0021] The adjusting component 5 includes a connector 501 and a tapered adjusting component 502. The connector 501 is slidably connected to the inner wall of the limiting channel 101. One end of the connector 501 is connected to the rotating component 4, and the other end of the connector 501 is connected to the tapered adjusting component 502. The housing 3 has a medium channel 301 in the longitudinal direction. The tapered adjusting component 502 extends into the medium channel 301, and the end face of the tapered adjusting component 502 extending into the medium channel 301 is a tapered surface. It should be understood that the rotating component 4 in this embodiment can be a screw or other rotating component that can drive the connector 501 to move within the limiting channel 101. It can be adjusted according to the actual situation and is not limited here. The connector 501 in this embodiment can be a nut or other connector that can connect the rotating component 4 and the tapered adjusting component 502. It can be adjusted according to the actual situation and is not limited here. In this embodiment, the conical adjusting member 502 is an adjusting member with at least one conical end face. As long as it can achieve the purpose of adjusting the medium flow rate, its specific structure and type are not limited. Furthermore, to ensure the stability of the adjusting assembly 5, the conical adjusting member 502 can be fixed to the other end of the connecting member 501 using a fixing member 5021. This fixing member 5021 can be a screw, a pin, or other components capable of fixing the conical adjusting member 502. Adjustments can be made according to actual conditions, and no limitation is made here.
[0022] In practice, when the medium enters the flow regulating device through the side wall of the housing 3, the motor 2 is turned on and controlled to reach the expected speed. Under the action of the motor 2, the rotating part 4 rotates accordingly, driving the regulating component 5 connected to the rotating part 4 to move together. During this process, the rotating part 4 can drive the connecting part 501 of the regulating component 5 to slide on the inner side wall of the limiting channel 101, and change the depth of the conical regulating part 502 extending into the medium channel 301, thereby changing the local resistance and flow rate within the medium channel 301. When the conical regulating part 502 extends to a greater depth, the local resistance within the medium channel 301 increases. According to the principle of energy conservation, the flow velocity within the entire medium channel 301 will decrease, thus reducing the flow rate flowing out from the side wall of the housing 3. Conversely, when the conical regulating part 502 retracts slightly, the local resistance within the medium channel 301 decreases, the flow velocity increases, and the flow rate flowing out from the side wall of the housing 3 will also increase, thereby enabling control of the medium flow rate. Therefore, since the end face of the conical adjusting member 502 extending into the medium channel 301 in this application is a conical surface, it can achieve more precise adjustment of the medium flow rate. As the depth of the conical adjusting member 502 extending into the medium channel 301 changes, the annular flow area formed between the conical surface and the inner wall of the medium channel 301 gradually changes. Furthermore, since the change in the radial dimension of the conical surface is continuous and uniform, compared to a planar end face, it can achieve continuous flow rate changes with a smaller adjustment displacement. Specifically, Figure 1 The structure shown is the structure when the flow regulating device is at its minimum opening. At this time, when the conical regulating member 502 extends to its maximum depth, the local resistance in the medium channel 301 is the maximum, the flow velocity in the entire medium channel 301 is the minimum, and the flow rate is the minimum. Figure 2 The structure shown is the structure when the flow regulating device is at its maximum opening. At this time, when the depth of the conical regulating member 502 is the minimum, the local resistance in the medium channel 301 is the minimum, the flow velocity in the entire medium channel 301 is the highest, and the flow rate is the maximum.
[0023] It is evident that the flow regulating device provided in this application has a simple structure and can reliably regulate the flow rate of the medium.
[0024] In one alternative embodiment, the sleeve in this application is a non-metallic sleeve, as the thermal conductivity of non-metallic materials is generally much lower than that of metals. When a medium with a lower regulating temperature is introduced into the side wall of the housing, the lower thermal conductivity can effectively reduce the probability of heat transfer from the low-temperature medium to the motor, especially ensuring normal operation even in low-temperature environments (e.g., -196 degrees Celsius), thus guaranteeing the normal operation of the flow regulating device. In other words, the motor used in this application embodiment can be a motor that can operate normally at room temperature, ensuring that the motor's operating temperature remains within a safe range without the need for additional heating components, which helps reduce production costs and simplifies the structure of the flow regulating device. It should be understood that the low-temperature medium used in this application embodiment can be adjusted according to actual conditions, and is not limited here.
[0025] In one alternative approach, such as Figure 1 and Figure 2 As shown, the flow regulating device in this embodiment further includes a positioning element 6, which is disposed between the connecting member 501 and the inner wall of the limiting channel 101. This positioning element 6 assists the connecting member 501 in linear movement along the inner wall of the limiting channel 101, reducing the probability of the connecting member 501 rotating within the limiting channel 101. In practical applications, the positioning element 6 can be fixed using screws or other parts. The specific selection of these parts can be adjusted according to actual conditions and is not limited here.
[0026] For example, such as Figure 1 and Figure 2 As shown, in this embodiment, the connector 501 has first guide grooves 5011 on both sides, and the inner wall of the sleeve 1 has a second guide groove 102. One end of the positioning member 6 is located on the first guide groove 5011, and the other end of the positioning member 6 is located on the second guide groove 102. This prevents the connector 501 from rotating around its axis and translating in a plane perpendicular to the axial direction, ensuring that the connector 501 can only perform precise linear motion. This precision is crucial for mechanical devices that require precise position adjustment. Furthermore, the first guide groove 5011 and the second guide groove 102 provide a clear movement path for the positioning member 6, significantly improving the linear motion accuracy of the connector 501 between the inner walls of the limiting channel 101.
[0027] For example, such as Figure 1 and Figure 2As shown, the flow regulating device in this embodiment also includes a guide sleeve 7. The inner wall of the limiting channel 101 is connected to the second guide groove 102 through the guide sleeve 7, which can provide more precise guidance for the movement of the connector 501 and ensure higher linear movement accuracy of the connector 501 between the inner walls of the limiting channel 101. The guide sleeve 7 is a metal guide sleeve. Since the sleeve 1 in this embodiment is a non-metallic sleeve, its material is softer than metal. During frequent linear movements of the connector 501, the inner wall of the sleeve 1 may be squeezed with tiny dents or wear marks. These deformations will cause changes in the shape and position of the second guide groove 102, and the accuracy of the second guide groove 102 is crucial for the linear movement of the connector 501. Once the second guide groove 102 deforms, the fitting accuracy between the positioning member 6 and the second guide groove 102 will decrease, thereby affecting the guiding accuracy of the connector 501 and preventing it from moving accurately along the predetermined linear trajectory.
[0028] Figure 3 A partially enlarged view of the limiting groove according to an embodiment of this application is shown. In an alternative embodiment, such as Figure 1 and Figure 3 As shown, in this embodiment, the connecting member 501 has a limiting groove 5012 on the side facing the rotating member 4. The limiting groove 5012 includes a first limiting groove 50121 and a second limiting groove 50122 distributed sequentially along the direction away from the rotating member 4. The radial dimension of the first limiting groove 50121 is smaller than the radial dimension of the second limiting groove 50122, which makes the contact area between the connecting member 501 and the rotating member 4 larger. When transmitting axial force and torque, the force can be more evenly distributed on the contact surface between the connecting member 501 and the rotating member 4, reducing the probability of local stress concentration caused by the small contact area between the connecting member 501 and the rotating member 4, and ensuring the stability, safety and reliability of the operation of the adjustment component 5.
[0029] In practical applications, the limiting groove 5012 in this embodiment may also include a tool retraction groove 50123. The first limiting groove 50121 is connected to the tool retraction groove 50123 through the second limiting groove 50122. Furthermore, the radial dimension of the tool retraction groove 50123 is the same as the radial dimension of the second limiting groove 50122, which can ensure that during assembly, the end face of the rotating part 4 can be tightly attached to the limiting groove 5012 of the connecting part 501.
[0030] In one alternative approach, such as Figures 1 to 3As shown, the medium channel 301 in this embodiment includes a first medium channel 3011 and a second medium channel 3012 distributed along the direction away from the conical adjustment member 502. The radial dimension of the first medium channel 3011 gradually decreases along the direction away from the conical adjustment member 502, and the radial dimension of the second medium channel 3012 gradually increases along the direction away from the first medium channel 3011.
[0031] In specific implementation, when the medium enters the second medium channel 3012 along the side wall of the shell and flows towards the first medium channel 3011, the radial dimension of the second medium channel 3012 gradually decreases, the medium velocity increases, and the pressure decreases. When the medium enters the first medium channel 3011, the radial dimension of the first medium channel 3011 gradually increases, the medium velocity decreases, and the pressure increases. During this process, when the conical adjusting member 502 extends to a greater depth into the second medium channel 3012, the local resistance within the medium channel 301 is at its maximum, the medium velocity is at its minimum, and thus the flow rate out from the side wall of the shell 3 is minimized. When the end of the conical adjusting member 502 extending into the medium channel is located at the junction of the second medium channel 3012 and the first medium channel 3011, the depth of the conical adjusting member 502 extending into the second medium channel 3012 is smaller, the local resistance within the medium channel 301 is at its minimum, the medium velocity is at its maximum, and thus the flow rate out from the side wall of the shell 3 is maximized.
[0032] In one alternative approach, such as Figure 1 and Figure 2 As shown, the flow regulating device in this embodiment further includes a positioning connector 8 and an elastic seal 9. The positioning connector 8 is disposed between the sleeve 1 and the housing, and the elastic seal 9 is disposed between the housing and the end of the positioning connector 8 near the medium channel 301. The positioning connector 8 determines the installation position of the sleeve 1 and the housing 3, ensuring they are connected. The elastic seal 9 reduces the risk of leakage, ensuring the flow regulating device can reliably operate normally under different pressures. It should be understood that the positioning connector 8 can be a flange or other components that can achieve positioning and connect the sleeve 1 and the housing 3, and can be adjusted according to actual conditions; no limitation is made here. The elastic seal 9 can be a spring-loaded sealing ring or a rubber sealing ring, and can be adjusted according to actual conditions; no limitation is made here.
[0033] For example, such as Figure 1 and Figure 2As shown, the flow regulating device in this embodiment further includes a locking member 10, a rotating sleeve 401, a bearing 402, a bearing sleeve 403, a motor mounting base 201, a motor connector 202, and a motor fixing member 203. In this embodiment, the locking member 10 is fitted onto the end of the sleeve 1 near the positioning connector 8 to prevent it from loosening during operation. The rotating sleeve 401 is fitted onto the end of the rotating member 4 near the motor 2, fixing the relative positions of the rotating member 4 and the bearing 402. The bearing 402 is fitted onto the rotating member 4 and located on the side of the rotating sleeve 401 near the motor 2, supporting the rotation of the shaft, reducing friction generated during the rotation of the rotating member 4 by the motor 2, and ensuring smooth rotation. The bearing sleeve 403 is fitted onto the bearing 402 to fix the bearing 402. In this embodiment, the output end of the motor 2 is fixed to the motor mounting base 201 via the motor connector 202, while the motor fixing part 203 is located between the motor connector 202 and the rotating part 4. When the output end of the motor 2 rotates, the power is transmitted to the motor fixing part 203 via the motor connector 202, which can drive the rotating part 4 connected to it to rotate.
[0034] This application also provides an engine including the above-mentioned flow regulating device. Thanks to the simple structure of the flow regulating device and its ability to more reliably regulate the flow of the medium, the stability and reliability of the engine during the recycling process can be greatly improved, and the recycling cost can be reduced.
[0035] The above description is merely a specific embodiment of this application. Obviously, various modifications and combinations can be made without departing from the spirit and scope of this application. Accordingly, this specification and accompanying drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, the intent of this application includes these modifications and modifications. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the stated claims.
[0036] It should also be noted that in the apparatus and method of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.
[0037] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.
[0038] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.
Claims
1. A flow regulating device, characterized by The flow regulating device comprises a sleeve, a motor, a housing, a rotating member and an adjusting assembly. The sleeve is provided with a limiting channel in the longitudinal direction, one end of the limiting channel is connected with the motor, the other end of the limiting channel is connected with the housing, the rotating member and the adjusting assembly are arranged in the limiting channel, the motor is connected with the adjusting assembly through the rotating member, and the medium flows in and / or out through the side wall of the housing. The adjusting assembly comprises a connecting member and a conical adjusting member, the connecting member is slidably connected with the inner side wall of the limiting channel, one end of the connecting member is connected with the rotating member, the other end of the connecting member is connected with the conical adjusting member, the housing is provided with a medium channel in the longitudinal direction, the conical adjusting member extends into the medium channel, and the end face of the conical adjusting member extending into the medium channel is a conical surface. The sleeve is a non-metal sleeve.
2. The flow regulating device of claim 1, wherein, The flow regulating device further comprises a positioning member arranged between the connecting member and the inner side wall of the limiting channel.
3. The flow regulating device of claim 1, wherein, The connecting member is provided with first guide grooves on both sides, the inner side wall of the sleeve is provided with second guide grooves, one end of the positioning member is located on the first guide grooves, and the other end of the positioning member is located on the second guide grooves.
4. The flow regulating device of claim 3, wherein, The flow regulating device further comprises a guide sleeve, and the inner side wall of the limiting channel is connected with the second guide grooves through the guide sleeve.
5. The flow regulating device of claim 4, wherein, The guide sleeve is a metal guide sleeve.
6. The flow regulating device of claim 5, wherein, The connecting member is provided with a limiting groove on the side facing the rotating member, the limiting groove comprises a first limiting groove and a second limiting groove arranged in sequence in the direction away from the rotating member, and the radial dimension of the first limiting groove is smaller than that of the second limiting groove.
7. The flow regulating device of any one of claims 1 to 6, wherein, The medium channel comprises a first medium channel and a second medium channel arranged in sequence in the direction away from the conical adjusting member, the radial dimension of the first medium channel gradually decreases in the direction away from the conical adjusting member, and the radial dimension of the second medium channel gradually increases in the direction away from the first medium channel.
8. The flow regulating device of claim 7, wherein, The flow regulating device further comprises a positioning connecting member arranged between the sleeve and the housing, and an elastic sealing member arranged between the housing and the end of the positioning connecting member close to the medium channel.
9. The flow regulating device of claim 7, wherein, The flow regulating device comprises a sleeve, a motor, a housing, a rotating member and an adjusting assembly.
10. An engine characterized by, The flow regulating device comprises a sleeve, a motor, a housing, a rotating member and an adjusting assembly.