Piston engine supercharging device

Abstract

The utility model relates to the technical field of superchargers, and discloses a piston engine supercharging device which comprises a supercharger, a baffle is fixedly connected to the outer wall of the supercharger, and a limiting assembly is arranged in the baffle. The limiting assembly comprises an inner limiting ring, an outer limiting ring is rotationally connected into the inner limiting ring, one end of the inner limiting ring is fixedly connected with a first clamping ring, the first clamping ring is embedded into the outer limiting ring, one end of the outer limiting ring is fixedly connected with a second clamping ring, and the second clamping ring is embedded into the inner limiting ring. According to the utility model, the cavity II is arranged between the outer limiting ring and the inner limiting ring, when dust or rainwater exists outside, the dust or the rainwater enters the cavity II through the gap between the outer limiting ring and the clamping ring I, and then the rainwater and the dust are discharged through the discharge hole II, so that the effects of improving the sealing performance and discharging impurities are achieved; the problem that a supercharging device is sealed only through a single sealing ring, and leakage is prone to occurring is solved, and the sealing performance of the supercharging device is improved.

Description

Technical Field

[0001] This utility model relates to the field of turbocharger technology, and in particular to a piston engine turbocharger device. Background Technology

[0002] A piston engine is a common type of internal or external combustion engine that converts heat energy into mechanical energy through the reciprocating motion of a piston in a cylinder. It is widely used in automobiles, ships, airplanes, generator sets, and other fields. In order to increase the intake air density and thus improve the engine's power output and combustion efficiency, a piston engine supercharger is required. Through the supercharger, the engine can burn more air and fuel mixture within a limited cylinder volume, ultimately improving its performance.

[0003] Supercharging devices can be divided into several types, including turbochargers, superchargers, and compound superchargers. Supercharging devices for piston engines are mainly classified into these categories according to their design and performance requirements. Among them, turbochargers use the exhaust gas from the engine to drive a turbine, which in turn drives a compressor to rotate, compressing the air and sending it into the cylinder. They are widely used in passenger cars, commercial vehicles, and aircraft engines, and are particularly suitable for applications with high requirements for power and efficiency.

[0004] However, existing booster devices often suffer from poor sealing and insufficient lubricant cooling. Many booster devices rely solely on a single sealing ring, making them susceptible to the entry of dust, rainwater, and other impurities, which can affect normal operation and even damage the equipment. Furthermore, traditional air-cooled designs have limitations in space utilization and heat dissipation, and are prone to incomplete filtration leading to the accumulation of impurities in the lubricating oil, affecting lubrication and potentially causing premature equipment failure. These problems not only reduce the performance and reliability of the booster device but also increase maintenance costs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a piston engine turbocharger, which aims to improve the problem of easy leakage caused by the turbocharger's sealing relying solely on a single sealing ring.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a piston engine booster device, including a booster, wherein a baffle is fixedly connected to the outer wall of the booster, and a limit component is provided inside the baffle;

[0007] The limiting assembly includes an inner limiting ring, an outer limiting ring rotatably connected inside the inner limiting ring, a retaining ring 1 fixedly connected to one end of the inner limiting ring, the retaining ring 1 fitting into the outer limiting ring, a retaining ring 2 fixedly connected to one end of the outer limiting ring, the retaining ring 2 fitting into the inner limiting ring, a cavity 1 and a discharge port 1 opened inside the inner limiting ring, a cavity 2 provided between the outer limiting ring and the inner limiting ring, a discharge port 2 opened inside the outer limiting ring, a sealing ring 3 fixedly connected inside the outer limiting ring, a rotating shaft rotatably connected between the outer limiting ring and the inner limiting ring, the inner wall of the sealing ring 3 fitting against the outer wall of the rotating shaft, and a sealing assembly provided on the outer wall of the inner limiting ring.

[0008] As a further description of the above technical solution:

[0009] The sealing assembly includes a first sealing ring, the inner wall of which is fixedly connected to the outer wall of an inner limiting ring. A second sealing ring is fixedly connected to the outer wall of the inner limiting ring. The outer walls of the first and second sealing rings are in contact with the inner wall of the baffle. An O-ring is embedded inside the outer and inner limiting rings. A third liquid outlet pipe is fixedly connected inside the third liquid outlet pipe. A filter bucket is fixedly connected to one end of the third liquid outlet pipe. A first housing is fixedly connected inside the filter bucket. A connecting pipe is fixedly connected inside the first housing.

[0010] As a further description of the above technical solution:

[0011] One end of the connecting pipe is fixedly connected to a second housing, and a liquid outlet pipe is fixedly connected inside the second housing. A cooling fan is fixedly connected between the discharge port and the connecting pipe.

[0012] As a further description of the above technical solution:

[0013] The booster is internally connected to a liquid outlet pipe II, and a circulation pump is fixedly connected to one end of the liquid outlet pipe II. The output end of the circulation pump is engaged with one end of the liquid outlet pipe II, and the input end of the circulation pump is fixedly connected to one end of the liquid outlet pipe II.

[0014] As a further description of the above technical solution:

[0015] The filter barrel is threadedly connected to a top cover on its outer wall. A fixing ring one is fixedly connected inside the filter barrel. A fixing ring two is provided at the bottom of the fixing ring one. A filter element is fixedly connected inside the fixing ring two. A slot is opened inside the fixing ring two.

[0016] As a further description of the above technical solution:

[0017] The filter barrel is slidably connected to a limiting plate, and a locking post is fixedly connected to one end of the limiting plate. The locking post is engaged with the locking groove.

[0018] As a further description of the above technical solution:

[0019] A spring is installed inside the filter barrel. One end of the spring is fixedly connected to the other end of the limiting plate, and the other end of the spring is fixedly connected to the inside of the filter barrel.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, a cavity two is provided between the outer limiting ring and the inner limiting ring. When there is dust or rainwater outside, it enters the cavity two through the gap between the outer limiting ring and the retaining ring one. Then, the rainwater and dust are discharged through the discharge port two, which achieves the effect of improving the sealing performance and being able to discharge impurities. This solves the problem that the pressurizing device is easily leaked because it is sealed by only a single sealing ring, and improves the sealing performance of the pressurizing device.

[0022] 2. In this utility model, the lubricating oil enters the connecting pipe through the first housing and then enters the second housing. Subsequently, the lubricating oil enters the circulation pump through the first outlet pipe, and then the output end of the second outlet pipe pumps the lubricating oil into the booster for circulation. The cooling fan blows external air over the outer wall of the connecting pipe, achieving the effect of heat dissipation and filtration while reducing the occupied area. This solves the problem that the traditional air-cooled cooling of the booster device occupies a large area and that the presence of impurities inside can easily damage the equipment, thus improving the practicality of the booster device. Attached Figure Description

[0023] Figure 1 This is a perspective view of a piston engine supercharging device proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the housing of a piston engine supercharger proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the outer limiting ring of a piston engine supercharging device proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the connecting pipe structure of a piston engine supercharging device proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the internal structure of the filter barrel of a piston engine turbocharger proposed in this utility model.

[0028] Legend:

[0029] 1. Booster; 2. Baffle; 3. Shaft; 4. Outer limiting ring; 5. Sealing ring one; 6. Sealing ring two; 7. Inner limiting ring; 8. Cavity one; 9. Discharge port one; 10. Snap ring one; 11. Snap ring two; 12. Cavity two; 13. Discharge port two; 14. Sealing ring three; 15. O-ring; 16. Filter canister; 17. First housing; 18. Connecting pipe; 19. Second housing; 20. Discharge pipe one; 21. Circulating pump; 22. Discharge pipe two; 23. Cooling fan; 24. Top cover; 25. Fixing ring one; 26. Fixing ring two; 27. Slot; 28. Filter element; 29. ​​Limiting plate; 30. Snap pin; 31. Spring; 32. Discharge pipe three. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3 The present invention provides an embodiment of a piston engine supercharger, comprising a supercharger 1, a baffle 2 fixedly connected to the outer wall of the supercharger 1, and a limit component provided inside the baffle 2;

[0032] The limiting assembly includes an inner limiting ring 7, with an outer limiting ring 4 rotatably connected inside the inner limiting ring 7. A retaining ring 10 is fixedly connected to one end of the inner limiting ring 7, and the retaining ring 10 engages with the outer limiting ring 4. A retaining ring 2 11 is fixedly connected to one end of the outer limiting ring 4, and the retaining ring 2 11 engages with the inner limiting ring 7. A cavity 8 is provided inside the inner limiting ring 7 to contain dust, impurities, and other substances, preventing them from entering the booster compressor 1 and protecting the normal operation of the booster compressor 1. A discharge port 9 is provided inside the inner limiting ring 7, which can effectively discharge impurities from the cavity 8, prevent impurity accumulation, and improve the sealing performance and stability of the booster device. A cavity 12 is provided between the outer limit ring 4 and the inner limit ring 7. The cavity 12 is mainly used to contain dust or rainwater entering from the outside, reducing the impact on the inside of the booster 1. A discharge port 13 is provided inside the outer limit ring 4. The discharge port 13 can effectively discharge the dust, impurities or rainwater accumulated in the cavity 12, ensuring the normal operation of the equipment and reducing the occurrence of equipment failure. A sealing ring 14 is fixedly connected inside the outer limit ring 4. The inner wall of the sealing ring 14 fits against the outer wall of the rotating shaft 3 to prevent the leakage of lubricating oil and impurities, maintain good sealing performance, and ensure the efficient operation of the booster device. A sealing assembly is provided on the outer wall of the inner limiting ring 7. The sealing assembly includes a first sealing ring 5, the inner wall of which is fixedly connected to the outer wall of the inner limiting ring 7, serving a sealing function to prevent dust and impurities from entering the equipment. A second sealing ring 6 is fixedly connected to the outer wall of the inner limiting ring 7. The outer walls of the first sealing ring 5 and the second sealing ring 6 are in contact with the inner wall of the baffle 2, further enhancing the sealing effect and ensuring the cleanliness and normal operation of the booster 1. An O-ring 15 is embedded inside the outer limiting ring 4 and the inner limiting ring 7. The O-ring 15 is used to fill the tiny gap between the outer limiting ring 4 and the inner limiting ring 7, ensuring sealing, preventing external substances from entering the interior, and enhancing the overall sealing performance.

[0033] Specifically, the rotating shaft 3 is securely fitted into the baffle 2 via the outer limiting ring 4 and the inner limiting ring 7, forming a robust connection structure. The baffle 2 and the inner limiting ring 7 are sealed together by sealing ring 5 and sealing ring 6, enhancing the sealing effect at the connection and preventing the intrusion of external liquids or particles. The outer limiting ring 4 and the inner limiting ring 7 are connected by a retaining ring 10 on one side of the inner limiting ring 7, and one end of the outer limiting ring 4 is further fitted into the inner limiting ring 7 via retaining ring 11, forming a closed cavity 2 12 between the outer limiting ring 4 and the inner limiting ring 7. When dust or rainwater is present in the external environment, these impurities can enter the cavity 2 12 through the tiny gap between the outer limiting ring 4 and retaining ring 10, and then be discharged from the cavity 2 12 in a timely manner through the preset discharge port 2 13, thereby avoiding the impact of impurity accumulation on the function of the device. Furthermore, the sealing effect between the outer limiting ring 4 and the rotating shaft 3 is further enhanced by a sealing ring 14. Additionally, an O-ring 15 is placed between the outer limiting ring 4 and the inner limiting ring 7 to fill any potential minute gaps, thus ensuring the integrity and reliability of the entire sealing structure. This design not only significantly improves the sealing performance of the device but also effectively avoids malfunctions that may be caused by the accumulation of impurities, ensuring the long-term stable operation of the device in complex environments.

[0034] Reference Figure 4 and Figure 5The booster compressor 1 is internally connected to a liquid outlet pipe 32. One end of the liquid outlet pipe 32 is fixedly connected to a filter barrel 16. The filter barrel 16 is internally connected to a first housing 17. The first housing 17 is internally connected to a connecting pipe 18. One end of the connecting pipe 18 is fixedly connected to a second housing 19. The second housing 19 is internally connected to a liquid outlet pipe 20. A cooling fan 23 is fixedly connected between the discharge port 9 and the connecting pipe 18. The cooling fan 23 can blow external air over the outer wall of the connecting pipe 18 to help dissipate heat, ensure that the system temperature is kept within an appropriate range, and avoid overheating of the lubricating oil, which could damage the booster compressor 1. The booster compressor 1 has a liquid outlet pipe 22 fixedly connected inside. A circulation pump 21 is fixedly connected to one end of the liquid outlet pipe 22. The output end of the circulation pump 21 is engaged with one end of the liquid outlet pipe 22, and the input end of the circulation pump 21 is fixedly connected to one end of the liquid outlet pipe 20. The circulation pump 21 plays a crucial role in this device, maintaining lubrication and heat dissipation inside the booster compressor 1 through the flow of circulating lubricating oil, ensuring the efficient operation of the booster compressor 1. A top cover 24 is threaded onto the outer wall of the filter barrel 16. The top cover 24 effectively seals the filter barrel 16, preventing lubricating oil leakage or impurities from entering the filtration system, ensuring the cleanliness of the lubricating oil. A fixing ring 25 is fixedly connected inside the filter barrel 16. A fixing ring 26 is located at the bottom of the fixing ring 25. A filter element 28 is fixedly connected inside the fixing ring 26. The filter element 28 effectively removes impurities from the lubricating oil through multi-layer filtration, improving the purity of the lubricating oil and extending the service life of the booster compressor 1. The fixing ring 26 has a slot 27 inside. A limiting plate 29 is slidably connected inside the filter cartridge 16. A locking post 30 is fixedly connected to one end of the limiting plate 29. The locking post 30 engages with the slot 27 to ensure the filter element 28 is stably fixed during use, preventing poor filtration due to loose filter element 28. A spring 31 is installed inside the filter cartridge 16. One end of the spring 31 is fixedly connected to the other end of the limiting plate 29, and the other end is fixedly connected inside the filter cartridge 16. The function of the spring 31 is to provide a certain pressure to ensure the limiting plate 29 slides stably inside the filter cartridge 16, preventing uneven pressure on the filter element 28, further improving the filtration effect of the filter element 28, and ensuring the stability of the entire structure.

[0035] Specifically, to effectively dissipate heat from the lubricating oil inside the booster compressor 1, the circulation pump 21 rapidly draws the lubricating oil from inside the booster compressor 1 into the filter tank 16 through the outlet pipe 32, ensuring continuous circulation and cleanliness of the lubricating oil. After entering the filter tank 16, the lubricating oil is first finely filtered by the filter element 28 to remove impurities and particles, ensuring the purity of the lubricating oil. The filtered lubricating oil flows through the first housing 17 into the connecting pipe 18, and then into the second housing 19. After sufficient pretreatment, the lubricating oil flows back to the circulation pump 21 through the outlet pipe 20, thus completing the recirculation of the lubricating oil. The output end of the second outlet pipe 22 pumps clean and appropriately sized lubricating oil back into the booster compressor 1, continuously supplying lubrication. As the lubricating oil flows between the first housing 17 and the second housing 19, the cooling fan 23 plays a crucial role, forcing external air across the outer wall of the connecting pipe 18 to remove excess heat from the lubricating oil, preventing overheating and effectively maintaining the lubricating oil at the ideal operating temperature, ensuring the efficient operation of the booster compressor 1. The filter element 28 is securely supported by the second fixing ring 26, and the first fixing ring 25 ensures the stable position of the filter element 28 within the filter housing 16, thus guaranteeing its normal filtration function. Simultaneously, the retaining post 30 is supported and positioned by the tension of the spring 31, fitting into the retaining groove 27 to ensure unobstructed flow of the lubricating oil and prevent any blockages or leaks.

[0036] Working principle: When using this piston engine supercharger, the rotating shaft 3 is first fitted into the baffle 2 through the outer limiting ring 4 and the inner limiting ring 7. The baffle 2 and the inner limiting ring 7 are sealed by sealing ring 1 5 and sealing ring 2 6. The outer limiting ring 4 and the inner limiting ring 7 are fitted into the outer limiting ring 4 through the retaining ring 10 on one side of the inner limiting ring 7. One end of the outer limiting ring 4 is fitted into the inner limiting ring 7 through retaining ring 2 11, so that a cavity 2 12 is provided between the outer limiting ring 4 and the inner limiting ring 7. When there is dust or rainwater outside, it enters the cavity 2 12 through the gap between the outer limiting ring 4 and retaining ring 10. Then the rainwater and dust are discharged through the discharge port 2 13. The outer limiting ring 4 and the rotating shaft 3 are sealed by sealing ring 3 14. At the same time, there is also an O-ring 15 between the outer limiting ring 4 and the inner limiting ring 7 to fill the gap and seal, thereby improving the sealing performance and being able to discharge impurities.

[0037] When cooling the lubricating oil inside the booster compressor 1, the circulation pump 21 draws the lubricating oil from inside the booster compressor 1 into the filter tank 16 through the outlet pipe 32. The lubricating oil is then filtered through the filter element 28 in the filter tank 16. After that, the lubricating oil enters the connecting pipe 18 through the first housing 17 and then enters the second housing 19. The lubricating oil then enters the circulation pump 21 through the outlet pipe 10. Subsequently, the output end of the outlet pipe 22 pumps the lubricating oil into the booster compressor 1 for circulation. When the lubricating oil is between the first housing 17 and the second housing 19, the cooling fan 23 blows external air over the outer wall of the connecting pipe 18 to cool the internal lubricating oil. The filter element 28 is supported by the fixing ring 26 and limited at the bottom of the fixing ring 1 25. At the same time, the locking post 30 is supported by the tension of the spring 31 and is embedded in the locking groove 27 for positioning. This achieves the effect of cooling and filtering while reducing the occupied area.

[0038] 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 piston engine turbocharger, comprising a turbocharger (1), characterized in that: The booster (1) has a baffle (2) fixedly connected to its outer wall, and the baffle (2) has a limit component inside. The limiting assembly includes an inner limiting ring (7), an outer limiting ring (4) is rotatably connected inside the inner limiting ring (7), a retaining ring one (10) is fixedly connected to one end of the inner limiting ring (7), the retaining ring one (10) is engaged with the outer limiting ring (4), a retaining ring two (11) is fixedly connected to one end of the outer limiting ring (4), the retaining ring two (11) is engaged with the inner limiting ring (7), and a cavity one (8) is opened inside the inner limiting ring (7). A discharge port 1 (9) is provided. A cavity 2 (12) is provided between the outer limiting ring (4) and the inner limiting ring (7). A discharge port 2 (13) is provided inside the outer limiting ring (4). A sealing ring 3 (14) is fixedly connected inside the outer limiting ring (4). A rotating shaft (3) is rotatably connected inside the outer limiting ring (4) and the inner limiting ring (7). The inner wall of the sealing ring 3 (14) is in contact with the outer wall of the rotating shaft (3). A sealing component is provided on the outer wall of the inner limiting ring (7).

2. The piston engine turbocharger according to claim 1, characterized in that: The sealing assembly includes a sealing ring one (5), the inner wall of the sealing ring one (5) is fixedly connected to the outer wall of the inner limiting ring (7), the outer wall of the inner limiting ring (7) is fixedly connected to a sealing ring two (6), the outer walls of the sealing ring one (5) and the sealing ring two (6) are in contact with the inner wall of the baffle (2), and an O-ring (15) is embedded inside the outer limiting ring (4) and the inner limiting ring (7).

3. The piston engine supercharging device according to claim 1, characterized in that: The booster (1) is fixedly connected to a liquid outlet pipe three (32), and a filter barrel (16) is fixedly connected to one end of the liquid outlet pipe three (32). A first housing (17) is fixedly connected inside the filter barrel (16), and a connecting pipe (18) is fixedly connected inside the first housing (17).

4. A piston engine turbocharger according to claim 3, characterized in that: One end of the connecting pipe (18) is fixedly connected to a second housing (19), and a liquid outlet pipe (20) is fixedly connected inside the second housing (19). A cooling fan (23) is fixedly connected between the discharge port (9) and the connecting pipe (18).

5. A piston engine turbocharger according to claim 1, characterized in that: The booster (1) is internally connected to a liquid outlet pipe two (22), and a circulation pump (21) is fixedly connected to one end of the liquid outlet pipe two (22). The output end of the circulation pump (21) is fitted into one end of the liquid outlet pipe two (22), and the input end of the circulation pump (21) is fixedly connected to one end of the liquid outlet pipe one (20).

6. A piston engine turbocharger according to claim 3, characterized in that: The filter barrel (16) is threaded with a top cover (24) on its outer wall. A fixing ring (25) is fixedly connected inside the filter barrel (16). A fixing ring (26) is provided at the bottom of the fixing ring (25). A filter element (28) is fixedly connected inside the fixing ring (26). A slot (27) is provided inside the fixing ring (26).

7. A piston engine supercharger according to claim 3, characterized in that: The filter barrel (16) is internally connected to a limiting plate (29), and one end of the limiting plate (29) is fixedly connected to a locking post (30), which is engaged with the locking groove (27).

8. A piston engine supercharger according to claim 3, characterized in that: A spring (31) is provided inside the filter barrel (16). One end of the spring (31) is fixedly connected to the other end of the limiting plate (29), and the other end of the spring (31) is fixedly connected inside the filter barrel (16).

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