Turbocharger with variable section

By designing a turbocharger with a variable cross-section and adjusting the input pipe cross-section using the adjustment components, the problems of slow response and limited intake volume of traditional turbochargers under different operating conditions are solved, achieving efficient engine operation under different loads and convenient maintenance of the filter plate.

CN223648167UActive Publication Date: 2025-12-09BEIJING JIANGNAN CARTER MACHINERY CO LTD
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Patent Information

Application Number
CN202520195917.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-12-09
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Traditional turbochargers use a fixed cross-section design, which results in low intake speed and slow response under low engine load conditions, and limited intake volume under high load conditions, making it difficult to meet the high-efficiency operation requirements under different operating conditions.

Method used

Design a turbocharger with variable cross-section. Adjust the cross-section of the input pipe by adjusting the components, including the cooperation of a fixed plate, a rotating plate, a slide bar, and a limit block, to achieve cross-section adjustment under different operating conditions and ensure that the turbocharger works efficiently under different loads.

Benefits of technology

It improves the turbocharger's response speed and intake volume under different operating conditions, ensuring that the engine maintains good working condition under different loads, and extends its service life and reduces maintenance costs through the design of easily removable filter plates.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of turbochargers, and discloses a turbocharger with a variable section, which comprises a turbocharger body, the input end of the turbocharger body is fixedly connected with an input pipe, the output end of the turbocharger body is fixedly connected with an output pipe, the input pipe is internally provided with a connecting box I and a connecting box II, and the connecting box II is fixedly connected with the input pipe. An adjusting assembly is arranged in the first connecting box, the adjusting assembly is used for adjusting the size of the section, the adjusting assembly comprises a fixing disc, the outer wall of the fixing disc is fixedly connected to the inner wall of the first connecting box, a limiting groove is formed in the fixing disc, and a rotating disc is rotationally connected to the inner wall of the second connecting box; and an annular groove is formed in the rotating disc. According to the utility model, the size of the cross section is adjusted, the power requirement of an engine under a high-load working condition is met, the working efficiency and the performance of a supercharger under different working conditions are effectively improved, meanwhile, faults caused by the problems of impurity accumulation and the like are reduced, and the maintenance cost and the maintenance time are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of turbocharger technology, and in particular to a turbocharger with variable cross-section. Background Technology

[0002] A turbocharger is a device used to increase the intake air volume and power output of an engine. It uses the energy of the exhaust gas from the engine to drive a turbine, which in turn compresses the intake air, allowing more air to enter the engine cylinders, thereby improving combustion efficiency and power performance. With the continuous development of automotive engine technology, the performance requirements for turbochargers are also getting higher and higher.

[0003] In early automobile engines, naturally aspirated engines dominated. However, with the development of technology, it was discovered that increasing the intake air volume could significantly improve the engine's power output. As a result, the turbocharger was developed. It uses the energy of the exhaust gas from the engine to drive the turbine to rotate, which in turn drives the compressor to compress the intake air, allowing more air to enter the cylinder to participate in combustion, thereby effectively improving engine performance.

[0004] Traditional turbochargers typically employ a fixed cross-section design. Their structure mainly consists of a turbine, compressor, intermediate components, and connecting pipes. Engine exhaust gases drive the turbine to rotate, and the compressor, coaxial with the turbine, works to compress the intake air. However, this fixed cross-section design has significant drawbacks. Under low engine load conditions, the intake air demand is small, and the fixed cross-section intake pipes result in low intake velocity and slow turbine response, affecting engine power output and fuel economy. Under high load conditions, although the engine requires a large amount of intake air, the fixed cross-section limits further increases in intake air volume, preventing the engine from fully realizing its performance potential and failing to meet the high-efficiency operation requirements of the engine under different operating conditions. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a turbocharger with a variable cross-section, which aims to improve the problem that traditional turbochargers usually adopt a fixed cross-section design, resulting in slow turbine response and difficulty in meeting the high-efficiency operation requirements of the engine under different operating conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a turbocharger with a variable cross-section, comprising a turbocharger body, an input pipe fixedly connected to the input end of the turbocharger body, an output pipe fixedly connected to the output end of the turbocharger body, a first connecting box and a second connecting box disposed inside the input pipe, an adjustment component disposed inside the first connecting box, the adjustment component being used to adjust the cross-section size, the adjustment component comprising a fixed disk, the outer wall of the fixed disk being fixedly connected to the inner wall of the first connecting box, a limit groove being formed inside the fixed disk, a rotating disk being rotatably connected to the inner wall of the second connecting box, an annular groove being formed inside the rotating disk, a connecting piece disposed on one side of the outer wall of the rotating disk, a sliding rod being fixedly connected inside the connecting piece, the outer wall of the sliding rod being slidably connected to the inner wall of the annular groove, a limit block being fixedly connected to one side of the outer wall of the connecting piece, the outer wall of the limit block being slidably connected to the inner wall of the limit groove.

[0007] Furthermore, a push block is fixedly connected to the outer wall of the rotating disk, the push block is used to drive the rotating disk to rotate, and a fixing nail is threaded inside the push block.

[0008] Furthermore, a connecting sleeve is fixedly connected to one side of the outer wall of the input pipe, and a mating groove is provided inside the connecting sleeve.

[0009] Furthermore, a filter plate is provided inside the connecting sleeve, and a docking block is fixedly connected to the outer wall of the filter plate.

[0010] Furthermore, a snap-fit ​​cylinder is fixedly connected inside the connecting sleeve, and a snap-fit ​​groove is opened inside the docking block.

[0011] Furthermore, a locking rod is provided inside the locking cylinder, which is used to engage with the locking slot.

[0012] Furthermore, a connecting plate is fixedly connected to the outer wall of the clamp rod, and a spring is sleeved on the outer wall of the clamp rod.

[0013] Furthermore, one end of the spring is fixedly connected to one side of the outer wall of the connecting plate, and the other end of the spring is fixedly connected to the inner wall of the snap-fit ​​cylinder.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by pulling the push block, the rotating disk can be rotated, and the annular groove inside the rotating disk can drive the sliding rod to move. At the same time, under the drive of the sliding rod, the connecting piece can drive the limiting block to slide in the limiting groove, thereby changing the relative positional relationship between the connecting piece and the fixed disk, realizing the adjustment of the cross-sectional size. When the cross-sectional area inside the input pipe becomes smaller, the intake speed can be increased, enhancing the response speed of the turbine under low load conditions; when the cross-sectional area inside the input pipe becomes larger, the intake volume can be increased to meet the power demand of the engine under high load conditions, effectively improving the working efficiency and performance of the turbocharger under different operating conditions, and keeping the engine in good working condition at all times.

[0016] 2. In this utility model, by pulling the lever outward, the lever can drive the connecting plate to slide on the inner wall of the locking cylinder. At the same time, the spring will be squeezed and contracted by the connecting plate until the lever is completely removed from the locking groove inside the slider. At this time, the filter plate can be pulled out from the docking groove inside the connecting sleeve, realizing convenient disassembly and cleaning, ensuring the filtration effect of the filter plate, extending the service life of the filter plate, and also helping to maintain the normal operation of the booster as a whole, reducing failures caused by impurity accumulation and other problems, and reducing maintenance costs and time. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a turbocharger with a variable cross-section proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the fixed disc portion of a turbocharger with a variable cross-section proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the rotating disk section of a turbocharger with a variable cross-section proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the connecting plate structure of a turbocharger with a variable cross-section proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the filter plate structure of a turbocharger with a variable cross-section proposed in this utility model.

[0022] Legend:

[0023] 1. Intensifier body; 2. Input pipe; 3. Output pipe; 4. Connecting box one; 5. Connecting box two; 6. Fixing plate; 7. Limiting groove; 8. Pushing block; 9. Rotating plate; 10. Connecting piece; 11. Annular groove; 12. Slide rod; 13. Limiting block; 14. Connecting sleeve; 15. Filter plate; 16. Docking groove; 17. Snap-fit ​​cylinder; 18. Snap-fit ​​rod; 19. Spring; 20. Connecting plate; 21. Docking block; 22. Snap-fit ​​groove; 23. Fixing pin. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 - Figure 4 This utility model provides an embodiment of a turbocharger with a variable cross-section, comprising a turbocharger body 1, an input pipe 2 fixedly connected to the input end of the turbocharger body 1, and an output pipe 3 fixedly connected to the output end of the turbocharger body 1. A first connecting box 4 and a second connecting box 5 are disposed inside the input pipe 2. An adjustment component is disposed inside the first connecting box 4 for adjusting the cross-sectional size. The adjustment component includes a fixed plate 6, the outer wall of which is fixedly connected to the inner wall of the first connecting box 4. A limit groove 7 is formed inside the fixed plate 6. The inner wall of the second connecting box 5 is rotatably connected... A rotating disk 9 is connected to the rotating disk 9, and an annular groove 11 is opened inside the rotating disk 9. A connecting piece 10 is provided on one side of the outer wall of the rotating disk 9. A sliding rod 12 is fixedly connected inside the connecting piece 10. The outer wall of the sliding rod 12 is slidably connected to the inner wall of the annular groove 11. A limiting block 13 is fixedly connected to one side of the outer wall of the connecting piece 10. The outer wall of the limiting block 13 is slidably connected to the inner wall of the limiting groove 7. First, pull the pushing block 8, which can drive the rotating disk 9 to rotate. At the same time, the annular groove 11 inside it will rotate accordingly. Then, through the sliding setting of the sliding rod 12 and the annular groove 11, when the rotating disk 9 rotates... When the rotating disk 9 rotates, it causes the annular groove 11 to move the sliding rod 12, which in turn moves the connecting piece 10. Simultaneously, the connecting piece 10 can cause the limiting block 13 to slide within the limiting groove 7. As the limiting block 13 slides within the limiting groove 7, the position of the connecting piece 10 on the fixed disk 6 changes, thereby adjusting the relative positional relationship between the connecting piece 10 and the fixed disk 6. This, in turn, changes the effective flow cross-section size within the input pipe 2. When the connecting piece 10 moves towards the center of the fixed disk 6, the cross-section within the input pipe 2 decreases; conversely, when the connecting piece 10 moves away from the center, the cross-section decreases. When the connecting piece 10 moves away from the center of the fixed plate 6, the cross-section inside the input pipe 2 increases. The outer wall of the rotating plate 9 is fixedly connected to the push block 8, which is used to drive the rotating plate 9 to rotate. The push block 8 is threadedly connected to the fixing nail 23. When the required cross-sectional size is adjusted, the fixing nail 23 is turned to fix the push block 8 to the surface of the connecting box 2 5, thereby restricting the rotation of the rotating plate 9 and ensuring that the turbocharger can work with a suitable cross-sectional area under different operating conditions to adapt to different intake requirements and improve the working efficiency and performance of the turbocharger.

[0026] Reference Figure 1 and Figure 5 A connecting sleeve 14 is fixedly connected to one side of the outer wall of the input pipe 2. A mating groove 16 is provided inside the connecting sleeve 14. A filter plate 15 is installed inside the connecting sleeve 14. A mating block 21 is fixedly connected to the outer wall of the filter plate 15. When it is necessary to disassemble and clean the filter plate 15, the locking rod 18 can be pulled outward first. A connecting plate 20 is fixedly connected to the outer wall of the locking rod 18. A spring 19 is sleeved on the outer wall of the locking rod 18. When the locking rod 18 is pulled, the locking rod 18 can drive the connecting plate 20 to slide on the inner wall of the locking cylinder 17. The locking rod 18 is installed inside the locking cylinder 17. At the same time, the spring 19 will be squeezed by the connecting plate 20. When the filter plate 15 is installed, the locking rod 18 is pulled out from the locking groove 22 inside the connecting block 21. The locking groove 22 is provided inside the connecting block 21. At this time, the filter plate 15 can be pulled out from the connecting groove 16 inside the connecting sleeve 14, thus realizing the convenient disassembly and cleaning of the filter plate 15. When installing the filter plate 15, the connecting block 21 on the outside of the filter plate 15 is inserted along the connecting groove 16 until the filter plate 15 is completely inserted into the connecting sleeve 14. At this time, the locking rod 18 is released. Through the rebound action of the spring 19, the locking rod 18 can be re-locked into the locking groove 22, thus realizing the installation and fixation of the filter plate 15.

[0027] Working principle: When the cross-sectional size needs to be changed, first pull the push block 8. Pushing block 8 drives the rotating disk 9 to rotate, and the annular groove 11 inside it will rotate accordingly. Then, through the sliding setting of the slide rod 12 inside the annular groove 11, when the rotating disk 9 rotates, the annular groove 11 will drive the slide rod 12 to move, which in turn drives the connecting piece 10 to move. At the same time, the connecting piece 10 can drive the limiting block 13 to slide in the limiting groove 7. As the limiting block 13 slides in the limiting groove 7, the position of the connecting piece 10 on the fixed disk 6 changes, thereby adjusting the relationship between the connecting piece 10 and the fixed disk. The relative positional relationship between the 6 plates changes the effective flow cross-sectional area within the input pipe 2. When the connecting piece 10 moves toward the center of the fixed plate 6, the cross-section within the input pipe 2 becomes smaller; conversely, when the connecting piece 10 moves away from the center of the fixed plate 6, the cross-section within the input pipe 2 becomes larger. Once the required cross-sectional area is adjusted, the fixing pin 23 is turned to fix the pushing block 8 onto the surface of the connecting box 2 5, thereby restricting the rotation of the rotating plate 9. This ensures that the turbocharger can operate with a suitable cross-sectional area under different operating conditions to adapt to different intake requirements and improve the turbocharger's efficiency and performance.

[0028] When the filter plate 15 needs to be disassembled and cleaned, the locking rod 18 can be pulled outward first, so that the locking rod 18 can drive the connecting plate 20 to slide on the inner wall of the locking cylinder 17. At the same time, the spring 19 will be squeezed and contracted by the connecting plate 20 until the locking rod 18 can be moved out of the locking groove 22 inside the docking block 21. At this time, the filter plate 15 can be pulled out from the docking groove 16 inside the connecting sleeve 14, thus realizing the convenient disassembly and cleaning of the filter plate 15. When installing the filter plate 15, insert the docking block 21 on the outside of the filter plate 15 along the docking groove 16 until the filter plate 15 is completely inserted into the connecting sleeve 14. At this time, release the locking rod 18. Through the rebound action of the spring 19, the locking rod 18 can be re-locked into the locking groove 22, thus realizing the installation and fixation of the filter plate 15.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A turbocharger with variable cross-section, comprising a turbocharger body (1), characterized in that: The input end of the booster body (1) is fixedly connected to an input pipe (2), and the output end of the booster body (1) is fixedly connected to an output pipe (3). The input pipe (2) is provided with a first connection box (4) and a second connection box (5). The first connection box (4) is provided with an adjustment component, which is used to adjust the cross-sectional size. The adjustment assembly includes a fixed disk (6), the outer wall of which is fixedly connected to the inner wall of the first connecting box (4), a limiting groove (7) is opened inside the fixed disk (6), a rotating disk (9) is rotatably connected to the inner wall of the second connecting box (5), an annular groove (11) is opened inside the rotating disk (9), a connecting piece (10) is provided on one side of the outer wall of the rotating disk (9), a sliding rod (12) is fixedly connected inside the connecting piece (10), the outer wall of the sliding rod (12) is slidably connected to the inner wall of the annular groove (11), a limiting block (13) is fixedly connected to one side of the outer wall of the connecting piece (10), and the outer wall of the limiting block (13) is slidably connected to the inner wall of the limiting groove (7).

2. A turbocharger with a variable cross-section according to claim 1, characterized in that: The outer wall of the rotating disk (9) is fixedly connected to a push block (8), which is used to drive the rotating disk (9) to rotate. The push block (8) is threadedly connected to a fixing nail (23).

3. A turbocharger with a variable cross-section according to claim 1, characterized in that: A connecting sleeve (14) is fixedly connected to one side of the outer wall of the input pipe (2), and a docking groove (16) is provided inside the connecting sleeve (14).

4. A turbocharger with a variable cross-section according to claim 3, characterized in that: The connecting sleeve (14) is provided with a filter plate (15), and a docking block (21) is fixedly connected to the outer wall of the filter plate (15).

5. A turbocharger with a variable cross-section according to claim 4, characterized in that: The connecting sleeve (14) has a snap-fit ​​cylinder (17) fixedly connected inside, and the docking block (21) has a snap-fit ​​groove (22) inside.

6. A turbocharger with a variable cross-section according to claim 5, characterized in that: The snap-fit ​​cylinder (17) is provided with a snap-fit ​​rod (18) inside, which is used to snap-fit ​​with the snap-fit ​​groove (22).

7. A turbocharger with a variable cross-section according to claim 6, characterized in that: A connecting plate (20) is fixedly connected to the outer wall of the clamp (18), and a spring (19) is sleeved on the outer wall of the clamp (18).

8. A turbocharger with a variable cross-section according to claim 7, characterized in that: One end of the spring (19) is fixedly connected to one side of the outer wall of the connecting plate (20), and the other end of the spring (19) is fixedly connected to the inner wall of the snap-fit ​​cylinder (17).