Automotive egr valve control device and method of use

Abstract

The application belongs to the technical field of automobile EGR valve, and particularly discloses an automobile EGR valve control device and a use method thereof, which comprises a cooling pipe, one end of the cooling pipe is provided with an air inlet pipe, the other end of the cooling pipe is provided with a valve shell, the inside of the cooling pipe is provided with a cooling circulation assembly, the inside of the air inlet pipe is provided with a gas filtering assembly, and the inside of the valve shell is provided with a control assembly for driving the gas filtering assembly to work; according to the application, part of the gas discharged from the automobile engine enters the inside of the cooling pipe through the air inlet pipe, is cooled by the cooling circulation assembly, is discharged through an air outlet pipe after cooling, is mixed with fresh air, and then enters the inside of the automobile engine again through the air inlet of the engine; and part of the gas discharged from the automobile engine is filtered by the gas filtering assembly before entering the cooling pipe, the gas filtering assembly is assisted to work by the feedback assembly during the filtering, and the running of the whole device is controlled by the control assembly.

Description

Technical Field

[0001] This invention relates to the field of automotive EGR valve technology, and more particularly to an automotive EGR valve control device and its usage method. Background Technology

[0002] An EGR valve is an electromechanical product installed on a gasoline engine to control the amount of exhaust gas recirculated back to the intake system. The EGR valve can mix a certain amount of exhaust gas with fresh air and return it to the cylinder for recirculation, thereby reducing the combustion temperature and combustion speed in the cylinder and further reducing the amount of nitrogen oxides (NOx) emitted.

[0003] Currently, when using an EGR valve, some of the exhaust gas produced after combustion in the cylinder enters the internal cooling system directly from the EGR valve's cooling end. After cooling, it mixes with fresh air and returns to the cylinder for recirculation. However, before cooling, the exhaust gas from combustion in the cylinder carries a certain amount of fine impurities. These impurities can easily contaminate the inside of the EGR valve during repeated circulation. Furthermore, when the fine impurities flow back into the cylinder along with the mixed air, they can also cause secondary contamination to the cylinder. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides an automotive EGR valve control device and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automotive EGR valve control device, comprising a cooling pipe, an intake pipe at one end of the cooling pipe, a valve housing at the other end of the cooling pipe, a cooling circulation assembly inside the cooling pipe, an air filter assembly inside the intake pipe, a control assembly for driving the air filter assembly inside the valve housing, a feedback assembly on the side wall of the intake pipe, and an exhaust pipe connected to the bottom of the cooling pipe near the edge of the other end.

[0006] A filter cover is fixed to the outer surface of the intake pipe. A mounting ring is threaded between the inner walls of the filter cover near one edge. A filter sleeve is provided between the inner walls of the filter cover, and one side of the filter sleeve is fixed to the mounting ring.

[0007] Preferably, the cooling circulation assembly includes an I-shaped bend sleeve, which is fixed between the inner walls of the cooling pipes. The middle part of the I-shaped bend sleeve is conductive, and the two sides of the I-shaped bend sleeve are fixed to the inner walls of the cooling pipes. A first guide plate is fixed at the middle of the inner wall of the I-shaped bend sleeve, and a gap is left between the outer surface of the first guide plate and the inner wall of the cooling pipes. Second guide plates are fixed near the two side edges of the inner walls of the cooling pipes. Both second guide plates are located inside the I-shaped bend sleeve, and a gap is left between the inner side of the second guide plate and the inner side of the I-shaped bend sleeve.

[0008] Preferably, multiple air distribution pipes are equidistantly arranged inside the I-shaped bending sleeve along the circumferential direction. Both ends of the multiple air distribution pipes pass through the two ends of the I-shaped bending sleeve. The multiple air distribution pipes pass through the first guide plate and the second guide plate. A water outlet pipe is fixed on the outer surface of the cooling pipe near the side of the I-shaped bending sleeve, and a water inlet pipe is fixed on the outer surface of the I-shaped bending sleeve near the other side of the I-shaped bending sleeve. Both the water outlet pipe and the water inlet pipe pass through the interior of the cooling pipe.

[0009] Preferably, the control component includes a valve core, an adjustment chamber is provided inside the valve housing, a bottom groove is provided on one side of the adjustment chamber, the valve core is disposed inside the adjustment chamber, one end of the valve core extends into the interior of the cooling pipe, and the outer surface of the valve core slides against the inner wall of the I-shaped bend sleeve, a reciprocating plate is fixed to the outer surface of the valve core inside the adjustment chamber, a spring is fixed between one side of the reciprocating plate and one side of the inner wall of the adjustment chamber, an iron core is provided on the bottom surface of the bottom groove, a coil is wound on the outer surface of the iron core, a rubber ring is fixed between the inner walls of the cooling pipe on the side of the exhaust pipe, a sealing disc is fixed to the outer surface of the valve core, and one side of the sealing disc is against one side of the rubber ring.

[0010] Preferably, the air filtration assembly includes a filter cylinder, a support ring fixed between the inner walls of the air inlet pipe, a cylindrical groove on one side of the support ring, an open side of the support ring communicating with the bottom surface of the cylindrical groove, the filter cylinder located between the inner walls of the cylindrical groove, a plurality of through-holes extending to the other side being equidistantly opened along the circumferential direction near the outer edge of one side of the support ring, both ends of the filter cylinder being closed, a plurality of air outlets being equidistantly opened near one edge of the outer surface of the filter cylinder, a plurality of mesh filter openings being equidistantly opened near the other edge of the outer surface of the filter cylinder, the plurality of mesh filter openings being located inside the support ring, the outer surface of the filter cylinder being threaded in the middle, and a plurality of exhaust filter openings being equidistantly opened along the circumferential direction on the inner wall of the air inlet pipe near the support ring, the plurality of exhaust filter openings extending into the interior of the filter cover.

[0011] Preferably, a retaining ring is fixed between the inner walls of the intake pipe near one edge, and a convex nozzle is provided between the inner walls of the intake pipe. The bottom of the convex nozzle is in contact with one side of the retaining ring, and the top of the convex nozzle extends towards one end of the cooling pipe. The inner wall of the convex nozzle is in contact with the outer surface of the filter cartridge, and multiple air outlets on the outer surface of the filter cartridge are located inside the convex nozzle. A pressure ring is threaded between the inner walls of the intake pipe, and one side of the pressure ring is in contact with the outer surface of the convex nozzle.

[0012] Preferably, a threaded ring is rotatably provided at the bottom of the nozzle tube near the inner edge. The inner surface of the threaded ring is threaded. The inner wall of the threaded ring is screwed into the threaded part of the outer surface of the filter cylinder. Multiple support rods are fixed on one side of the threaded ring. A nylon ring is fixed in the middle of one end of the multiple support rods. Multiple bristles are fixed at equal intervals on the inner wall of the nylon ring. One end of each bristle is attached to the outer surface of the filter cylinder.

[0013] Preferably, the feedback component includes an annular cover, an annular receiving cavity is formed inside the side wall of the intake pipe, the top of the annular receiving cavity extends to one side of the intake pipe, and the annular receiving cavity is interconnected with multiple exhaust filters. The annular cover is located inside the annular receiving cavity, and multiple air vents extending to the inner side are formed on the outer surface of the annular cover. Each of the multiple air vents is interconnected with the exhaust filters. Both sides of the inner wall of the intake pipe are provided with a dial, and one side of each dial is interconnected with one side of the annular receiving cavity.

[0014] Preferably, a lever is slidably disposed between the inner walls of the two levers, one end of each lever extends into the interior of the annular receiving cavity and is connected to the annular cover. A fixing tube is fixed to the bottom of the support ring, and a through hole is opened at the bottom of the filter cylinder, which is connected to the through hole. A cylindrical rod is disposed between the inner walls of the fixing tube, one end of the cylindrical rod is rotatably engaged in the interior of the through hole, and two connecting rods are fixed to the outer surface of the other end of the cylindrical rod. One end of each connecting rod is fixed to the lever. Multiple side openings are equidistantly opened on the outer surface of the fixing tube. One end of the cylindrical rod is concave, and a filter pad is disposed inside the concave part of the cylindrical rod. Multiple bent air passages are equidistantly opened on the outer surface of the cylindrical rod, one end of each bent air passage extends into one side of the filter pad, and the other end of each bent air passage is opposite to the side opening.

[0015] The present invention also provides a method for controlling an automotive EGR valve, applied to an automotive EGR valve control device. The method for controlling an automotive EGR valve includes the following steps:

[0016] Step S1: A portion of the gas discharged from the car engine enters the cooling pipe through the intake pipe and is cooled by the cooling circulation assembly. After cooling, it is discharged through the exhaust pipe and mixed with fresh air before entering the car engine again through the engine intake. A portion of the gas discharged from the car engine is filtered by the air filter assembly before entering the cooling pipe. During filtration, the feedback assembly assists the air filter assembly in working, and the control assembly controls the operation of the entire device.

[0017] Step S2: When the control component is working, the coil is wound around the outer surface of the iron core. The iron core generates a magnetic attraction force by switching the coil on and off, thereby attracting the valve core to control the opening and closing of the air outlet pipe and the working status of the air filter component.

[0018] Step S3: When the air filtration assembly and feedback assembly are working, as the valve core slides towards one end of the valve housing, it can drive the filter cylinder to slide towards the outside of the cylindrical groove. During the sliding of the filter cylinder, it can drive the threaded ring to rotate. The rotation of the threaded ring will drive the nylon ring to rotate through the support rod, thereby driving the bristles to clean the outer surface of the filter cylinder. At this time, the air inlet and the exhaust filter outlet are connected, the bent air passage is connected to the side outlet, and the air outlet is located inside the convex nozzle tube. The mesh filter outlet is located inside the support ring. Therefore, during the cleaning process, the airflow can enter the interior of the filter cylinder from the side outlet and the bent air passage, and flow out from the inside of the filter cylinder to the outside. This can work with the bristles to remove the fine impurities attached to the outer surface of the filter cylinder. The fine impurities enter the filter cover from the exhaust filter outlet with the gas, and finally are discharged to the outside after being filtered by the filter sleeve.

[0019] Step S4: When the cooling circulation assembly is working, the gas entering one end of the cooling pipe is cooled by the gas distribution pipe and then enters the other end, and then flows out from the gas outlet pipe. Cooling water is injected into the interior of the cooling pipe from the water inlet pipe. The cooling water cools the gas distribution pipe inside the cooling pipe and then flows out from the water outlet pipe. The cooling water flows in an S-shape along the first guide plate and two second guide plates inside the cooling pipe, which can ensure that the cooling water fully cools the gas distribution pipe.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] When using this device on a car engine, connect the intake pipe to the exhaust port of the car engine, connect the exhaust pipe to the intake port of the car engine, then connect the water inlet pipe to the external cooling water supply pipe, and connect the water outlet pipe to the external cooling water return pipe. A portion of the gas discharged from the car engine will enter the interior of the cooling pipe through the intake pipe and be cooled by the cooling circulation component. After cooling, it will be discharged through the exhaust pipe and mixed with fresh air before entering the interior of the car engine through the engine intake port. A portion of the gas discharged from the car engine will be filtered by the air filter component before entering the cooling pipe. During filtration, the air filter component is assisted by the feedback component, and the operation of the entire device is controlled by the control component.

[0022] 2. In this invention, when the control component is working, the coil is wound around the outer surface of the iron core. The iron core generates a magnetic attraction force by switching the coil on and off, thereby attracting the valve core to control the opening and closing of the air outlet pipe and the working status of the air filter component.

[0023] 3. In this invention, when the air filtration assembly and feedback assembly are working, the valve core slides towards one end of the valve housing, which can drive the filter cylinder to slide towards the outside of the cylindrical groove. During the sliding of the filter cylinder, the threaded ring can be driven to rotate. The rotation of the threaded ring will drive the nylon ring to rotate through the support rod, which in turn drives the bristles to clean the outer surface of the filter cylinder. At this time, the air inlet and the exhaust filter outlet are connected, the bent air passage is connected to the side outlet, and the air outlet is located inside the convex nozzle tube. The mesh filter outlet is located inside the support ring. Therefore, during the cleaning process, the airflow can enter the interior of the filter cylinder from the side outlet and the bent air passage, and flow out from the inside of the filter cylinder to the outside. This can work with the bristles to remove the fine impurities attached to the outer surface of the filter cylinder. The fine impurities enter the filter cover from the exhaust filter outlet with the gas, and finally are discharged to the outside after being filtered by the filter sleeve.

[0024] 4. In this invention, when the cooling circulation assembly is working, the gas entering one end of the cooling pipe is cooled by the gas distribution pipe and then enters the other end, and then flows out from the gas outlet pipe. Cooling water is injected into the interior of the cooling pipe from the water inlet pipe. The cooling water cools the gas distribution pipe inside the cooling pipe and then flows out from the water outlet pipe. The cooling water flows in an S-shape along the first guide plate and two second guide plates inside the cooling pipe, thereby ensuring that the cooling water fully cools the gas distribution pipe. Attached Figure Description

[0025] Figure 1 This invention provides a front-view three-dimensional structural diagram of an automotive EGR valve control device;

[0026] Figure 2 This invention provides a cross-sectional perspective view of an automotive EGR valve control device.

[0027] Figure 3 This invention provides a cross-sectional perspective view of the cooling circulation component and the control component in an automotive EGR valve control device.

[0028] Figure 4 This invention provides a cross-sectional perspective view of the air filter assembly and feedback assembly in an automotive EGR valve control device.

[0029] Figure 5 This invention provides a cross-sectional three-dimensional structural diagram of the intake pipe and nylon ring in an automotive EGR valve control device;

[0030] Figure 6 This invention provides a cross-sectional three-dimensional structural diagram of the intake pipe in an automotive EGR valve control device;

[0031] Figure 7 For the present invention Figure 2 A magnified view of a portion of point A in the middle;

[0032] Figure 8 For the present invention Figure 4A magnified view of a portion of point B in the middle.

[0033] In the diagram: 1. Cooling pipe; 2. Inlet pipe; 3. Valve housing; 4. Outlet pipe; 5. Inlet pipe; 6. Outlet pipe; 7. Filter cover; 8. Mounting ring; 9. Filter sleeve; 10. I-beam bend sleeve; 11. Air distribution pipe; 12. First guide plate; 13. Second guide plate; 14. Valve core; 15. Adjustment chamber; 16. Reciprocating plate; 17. Spring; 18. Bottom groove; 19. Iron core; 20. Coil; 21. Sealing disc; 22. Rubber ring; 23. Support ring; 24. Retaining ring; 25. 26. Opening; 27. Cylindrical groove; 28. Fixed tube; 29. ​​Side opening; 30. Annular receiving cavity; 31. Dial opening; 32. Exhaust filter opening; 33. Pressure ring; 34. Protruding nozzle tube; 35. Threaded ring; 36. Support rod; 37. Nylon ring; 38. Brush bristles; 39. Filter cylinder; 40. Air outlet; 41. Mesh filter opening; 42. Annular cover; 43. Vent; 44. Through hole; 45. Cylindrical rod; 46. Bent air passage; 47. Filter pad; 48. Connecting rod; 49. Dial block. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-8 The present invention provides a technical solution: an automotive EGR valve control device, including a cooling pipe 1, an intake pipe 2 at one end of the cooling pipe 1, a valve housing 3 at the other end of the cooling pipe 1, a cooling circulation assembly inside the cooling pipe 1, an air filter assembly inside the intake pipe 2, a control assembly for driving the air filter assembly inside the valve housing 3, a feedback assembly on the side wall of the intake pipe 2, and an exhaust pipe 6 connected to the bottom of the cooling pipe 1 near the edge of the other end.

[0036] A filter cover 7 is fixed to the outer surface of the intake pipe 2. An installation ring 8 is threadedly connected between the inner walls of the filter cover 7 near one edge. A filter sleeve 9 is provided between the inner walls of the filter cover 7. One side of the filter sleeve 9 is fixed to the installation ring 8.

[0037] The effect achieved is as follows: when using this device on a car engine, the intake pipe 2 is connected to the exhaust port of the car engine, the exhaust pipe 6 is connected to the intake port of the car engine, the water inlet pipe 5 is connected to the external cooling water supply pipe, and the water outlet pipe 4 is connected to the external cooling water return pipe. A portion of the gas discharged from the car engine will enter the interior of the cooling pipe 1 through the intake pipe 2 and be cooled by the cooling circulation component. After cooling, it will be discharged through the exhaust pipe 6 and mixed with fresh air before entering the interior of the car engine through the engine intake port. Furthermore, a portion of the gas discharged from the car engine will be filtered by the air filter component before entering the cooling pipe 1. During filtration, the air filter component is assisted by the feedback component, and the operation of the entire device is controlled by the control component.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the cooling circulation assembly includes an I-shaped bend sleeve 10, which is fixed between the inner walls of the cooling pipe 1. The middle part of the I-shaped bend sleeve 10 is conductive. The two sides of the I-shaped bend sleeve 10 are fixed to the inner walls of the cooling pipe 1. A first guide plate 12 is fixed at the middle of the inner wall of the I-shaped bend sleeve 10. A gap is left between the outer surface of the first guide plate 12 and the inner wall of the cooling pipe 1. Second guide plates 13 are fixed near the two edges of the inner walls of the cooling pipe 1. Both second guide plates 13 are located inside the I-shaped bend sleeve 10. A gap is left between the inner side of 13 and the inner side of the I-shaped bending sleeve 10. Multiple air distribution pipes 11 are equidistantly arranged in the circumferential direction inside the I-shaped bending sleeve 10. Both ends of the multiple air distribution pipes 11 are respectively connected to both ends of the I-shaped bending sleeve 10. The multiple air distribution pipes 11 are interconnected with the first guide plate 12 and the second guide plate 13. A water outlet pipe 4 is fixed on the outer surface of the cooling pipe 1 near the side of the I-shaped bending sleeve 10. A water inlet pipe 5 is fixed on the outer surface of the I-shaped bending sleeve 10 near the other side of the I-shaped bending sleeve 10. Both the water outlet pipe 4 and the water inlet pipe 5 are respectively connected to the interior of the cooling pipe 1.

[0039] The effect achieved is that the gas entering one end of the cooling pipe 1 is cooled by the gas distribution pipe 11 and then enters the other end, and then flows out from the gas outlet pipe 6. Cooling water is injected into the interior of the cooling pipe 1 from the water inlet pipe 5. The cooling water cools the gas distribution pipe 11 inside the cooling pipe 1 and then flows out from the water outlet pipe 4. The cooling water flows in an S-shape along the first guide plate 12 and the two second guide plates 13 inside the cooling pipe 1, thereby ensuring that the cooling water fully cools the gas distribution pipe 11.

[0040] like Figure 1 , Figure 2 and Figure 3As shown, the control assembly includes a valve core 14, an adjustment cavity 15 is provided inside the valve housing 3, a bottom groove 18 is provided on one side of the adjustment cavity 15, the valve core 14 is disposed inside the adjustment cavity 15, one end of the valve core 14 extends into the interior of the cooling pipe 1, and the outer surface of the valve core 14 slides against the inner wall of the I-shaped bending sleeve 10, a reciprocating plate 16 is fixed to the outer surface of the valve core 14 inside the adjustment cavity 15, a spring 17 is fixed between one side of the reciprocating plate 16 and one side of the inner wall of the adjustment cavity 15, an iron core 19 is provided on the bottom surface inside the bottom groove 18, a coil 20 is wound on the outer surface of the iron core 19, a rubber ring 22 is fixed between the inner walls of the cooling pipe 1 on one side of the air outlet pipe 6, a sealing disc 21 is fixed to the outer surface of the valve core 14, and one side of the sealing disc 21 is against one side of the rubber ring 22.

[0041] The effect achieved is that the coil 20 is wound around the outer surface of the iron core 19. The switching on and off of the coil 20 causes the iron core 19 to generate a magnetic attraction, thereby attracting the valve core 14 to control the opening and closing of the air outlet pipe 6 and the operation of the air filter assembly. When the coil 20 is not energized, the iron core 19 cannot generate a magnetic attraction, and under the elastic force of the spring 17, the valve core 14 is pushed towards the air inlet pipe 2, thus causing the sealing disc 21 and the rubber ring 22 to seal against each other. At this time, the air outlet pipe 6 is not conductive, and... Furthermore, the air outlet 39 on the filter cylinder 38 is located inside the convex nozzle tube 33, and the filter cylinder 38 is located inside the cylindrical groove 26, so the air filtration assembly is also in a non-working state. After the coil 20 is energized, the iron core 19 will generate a magnetic attraction force, which will attract the valve core 14 to one side of the valve shell 3. At this time, the sealing disc 21 and the rubber ring 22 are separated from each other, and the air outlet 6 can be connected to the cooling pipe 1. The gas is filtered from the inside of the air inlet pipe 2 through the air filtration assembly and then cooled through the cooling circulation assembly, and finally discharged from the air outlet 6.

[0042] like Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the air filtration assembly includes a filter cylinder 38. A support ring 23 is fixed between the inner walls of the air inlet pipe 2. A cylindrical groove 26 is formed on one side of the support ring 23, and the other side of the support ring 23 is open and communicates with the bottom surface of the cylindrical groove 26. The filter cylinder 38 is located between the inner walls of the cylindrical groove 26. Multiple through-holes 25 are equidistantly formed along the circumferential direction near the outer edge of one side of the support ring 23, extending to the other side. Both ends of the filter cylinder 38 are closed. Multiple air outlets 39 are equidistantly formed near one edge of the outer surface of the filter cylinder 38, and multiple mesh filter holes 40 are equidistantly formed near the other edge of the outer surface of the filter cylinder 38. The multiple mesh filter holes 40 are all located inside the support ring 23. The outer surface of the filter cylinder 38 is threaded in the middle. Multiple exhaust filter holes 31 are equidistantly formed along the circumferential direction on the inner wall of the air inlet pipe 2 near the support ring 23. The multiple exhaust filter holes 31 extend into the interior of the filter cover 7. A retaining ring 24 is fixed at the edge. A convex nozzle 33 is provided between the inner walls of the intake pipe 2. The bottom of the convex nozzle 33 is in contact with one side of the retaining ring 24. The top of the convex nozzle 33 extends towards one end of the cooling pipe 1. The inner wall of the convex nozzle 33 is in contact with the outer surface of the filter cartridge 38. Multiple air outlets 39 on the outer surface of the filter cartridge 38 are located inside the convex nozzle 33. A pressure ring 32 is threaded between the inner walls of the intake pipe 2. One side of the pressure ring 32 is in contact with the outer surface of the convex nozzle 33. The surfaces are in close contact with each other. A threaded ring 34 is rotatably provided at the bottom of the nozzle tube 33 near the inner edge. The inner surface of the threaded ring 34 is threaded. The inner wall of the threaded ring 34 is screwed into the threaded part of the outer surface of the filter cylinder 38. Multiple support rods 35 are fixed on one side of the threaded ring 34. A nylon ring 36 is fixed in the middle of one end of the multiple support rods 35. Multiple bristles 37 are fixed at equal intervals on the inner wall of the nylon ring 36. One end of each bristle 37 is in close contact with the outer surface of the filter cylinder 38.

[0043] The feedback assembly includes an annular cover 41. An annular receiving cavity 29 is formed inside the side wall of the intake pipe 1. The top of the annular receiving cavity 29 extends to one side of the intake pipe 2, and the annular receiving cavity 29 is interconnected with multiple exhaust filters 31. The annular cover 41 is located inside the annular receiving cavity 29. Multiple vents 42 extending to the inner side are formed on the outer surface of the annular cover 41, and each of the multiple vents 42 is interconnected with the exhaust filters 31. Two toggle ports 30 are formed on the inner walls of both sides of the intake pipe 2. One side of each toggle port 30 is interconnected with one side of the annular receiving cavity 29. A toggle block 48 is slidably disposed between the inner walls of each toggle port 30. One end of each toggle block 48 extends into the interior of the annular receiving cavity 29 and is connected to the annular cover. 41 are interconnected. The bottom of the support ring 23 is fixed with a fixing tube 27. The bottom of the filter cylinder 38 is provided with a through hole 43 that extends into the interior. The fixing tube 27 and the through hole 43 are interconnected. A cylindrical rod 44 is provided between the inner walls of the fixing tube 27. One end of the cylindrical rod 44 is rotatably engaged inside the through hole 43. Two connecting rods 47 are fixed to the outer surface of the other end of the cylindrical rod 44. One end of each connecting rod 47 is fixed to the lever 48. Multiple side openings 28 are provided at equal intervals on the outer surface of the fixing tube 27. One end of the cylindrical rod 44 is concave. A filter pad 46 is provided inside the concave part of the cylindrical rod 44. Multiple bent air passages 45 are provided at equal intervals on the outer surface of the cylindrical rod 44. One end of the multiple bent air passages 45 is...

[0044] The effect achieved is that when the air filtration assembly and feedback assembly are working, with the valve core 14 not sliding, the air outlet 39 is located inside the nozzle tube 33, the mesh filter 40 is located inside the support ring 23, the air vent 42 on the annular cover 41 is located on the side of the exhaust filter 31 and is not connected to the exhaust filter 31, and the bent air passage 45 on the cylindrical rod 44 is located on the side of the side port 28 and is not connected to the side port 28. During the process of the valve core 14 sliding towards one end of the valve housing 3, it can drive the filter cylinder 38 to slide towards the outside of the cylindrical groove 26. During the sliding process of the filter cylinder 38, it can drive... The rotating threaded ring 34 drives the nylon ring 36 to rotate via the support rod 35, which in turn drives the bristles 37 to clean the outer surface of the filter cartridge 38. At this time, the air inlet 42 is connected to the exhaust filter port 31, the bent air passage 45 is connected to the side port 28, and the air outlet 39 is located inside the nozzle tube 33, while the mesh filter port 40 is located inside the support ring 23. Therefore, during the cleaning process, airflow can enter the interior of the filter cartridge 38 from the side port 28 and the bent air passage 45, and flow out from the inside of the filter cartridge 38 to the outside. This, in conjunction with the bristles 37, cleans the outer surface of the filter cartridge 38. Fine impurities adhering to the outer surface of the filter cartridge 38 are removed. These fine impurities enter the filter cover 7 through the exhaust port 31 with the gas, and are finally filtered by the filter sleeve 9 before being discharged to the outside. After the valve core 14 slides to one end of the valve housing 3, the vent 42 slides to the other side of the exhaust port 31 and is no longer connected to it. The bent air passage 45 slides to the other side of the side port 28 and is no longer connected to it. Meanwhile, the air outlet 39 slides out from the inside of the nozzle tube 33, and the mesh filter 40 slides out from the inside of the support ring 23. At this time, the gas inside the intake pipe 2 passes through the vent 2. 5 flows into the outside of the filter cylinder 38 and is then filtered through the mesh filter port 40. The filtered air enters the interior of the cooling pipe 1 from the inside of the filter cylinder 38 through the air outlet 39, and is then distributed through the air distribution pipe 11. At the same time, it is cooled by the cooling circulation assembly. During the operation of the filter cylinder 38, since one end of the cylindrical rod 44 rotates and engages inside the through hole 43, the filter cylinder 38 will drive the cylindrical rod 44 to slide together when it slides. In turn, the connecting rod 47 and the lever 48 drive the annular cover 41 to slide inside the annular receiving cavity 29.

[0045] For example, in one embodiment, the present invention also provides an automotive EGR valve control method, applied to an automotive EGR valve control device as described above, comprising the following steps:

[0046] Step S1: A portion of the gas discharged from the car engine enters the interior of the cooling pipe 1 through the intake pipe 2 and is cooled by the cooling circulation assembly. After cooling, it is discharged through the exhaust pipe 6 and mixed with fresh air before entering the car engine again through the engine intake. A portion of the gas discharged from the car engine is filtered by the air filter assembly before entering the cooling pipe 1. During filtration, the air filter assembly is assisted by the feedback assembly, and the operation of the entire device is controlled by the control assembly.

[0047] Step S2: When the control component is working, the coil 20 is wound around the outer surface of the iron core 19. The iron core 19 generates magnetic attraction by switching the coil 20 on and off, thereby attracting the valve core 14 to control the opening and closing of the air outlet pipe 6 and the working status of the air filter component.

[0048] Step S3: When the air filtration assembly and feedback assembly are working, during the process of the valve core 14 sliding towards one end of the valve housing 3, the filter cylinder 38 can be driven to slide towards the outside of the cylindrical groove 26. During the sliding process of the filter cylinder 38, the threaded ring 34 can be driven to rotate. The rotation of the threaded ring 34 will drive the nylon ring 36 to rotate through the support rod 35, thereby driving the bristles 37 to clean the outer surface of the filter cylinder 38. At this time, the air inlet 42 is connected to the exhaust filter port 31, the bent air passage 45 is connected to the side port 28, and the air outlet 39 is located inside the nozzle tube 33, and the mesh filter port 40 is located inside the support ring 23. Therefore, during the cleaning process, the airflow can enter the interior of the filter cylinder 38 from the side port 28 and the bent air passage 45, and flow out from the inside of the filter cylinder 38 to the outside. This can work with the bristles 37 to remove the fine impurities attached to the outer surface of the filter cylinder 38. The fine impurities enter the filter cover 7 from the exhaust filter port 31 with the gas, and finally are discharged to the outside after being filtered by the filter sleeve 9.

[0049] Step S4: When the cooling circulation assembly is working, the gas entering one end of the cooling pipe 1 is cooled by the gas distribution pipe 11 and then enters the other end, and then flows out from the gas outlet pipe 6. Cooling water is injected into the interior of the cooling pipe 1 from the water inlet pipe 5. The cooling water cools the gas distribution pipe 11 inside the cooling pipe 1 and then flows out from the water outlet pipe 4. The cooling water flows in an S-shape along the first guide plate 12 and the two second guide plates 13 inside the cooling pipe 1, which can ensure that the cooling water fully cools the gas distribution pipe 11.

[0050] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A vehicle EGR valve control device, characterized in that, The cooling pipe (1) is provided with an air inlet pipe (2) at one end and a valve housing (3) at the other end. A cooling circulation assembly is provided inside the cooling pipe (1), a filter assembly is provided inside the air inlet pipe (2), a control assembly for driving the filter assembly is provided inside the valve housing (3), a feedback assembly is provided on the side wall of the air inlet pipe (2), and an air outlet pipe (6) is connected to the bottom of the cooling pipe (1) near the edge of the other end. A filter cover (7) is fixed to the outer surface of the air intake pipe (2). An installation ring (8) is threaded between the inner walls of the filter cover (7) near one edge. A filter sleeve (9) is provided between the inner walls of the filter cover (7). One side of the filter sleeve (9) is fixed to the installation ring (8). The air filtration assembly includes a filter cylinder (38). A support ring (23) is fixed between the inner walls of the air intake pipe (2). A cylindrical groove (26) is opened on one side of the support ring (23). The other side of the support ring (23) is open and communicates with the bottom surface of the cylindrical groove (26). The filter cylinder (38) is located between the inner walls of the cylindrical groove (26). The support ring... (23) has multiple openings (25) equidistantly spaced along the circumferential direction near the outer edge of one side of the filter cylinder (38), both ends of the filter cylinder (38) are closed, multiple air outlets (39) are equidistantly spaced near one end edge of the outer surface of the filter cylinder (38), and multiple mesh filter openings (40) are equidistantly spaced near the other end edge of the outer surface of the filter cylinder (38). The multiple mesh filter openings (40) are all located inside the support ring (23), the outer surface of the filter cylinder (38) is threaded in the middle, and multiple exhaust filter openings (31) are equidistantly spaced along the circumferential direction on the inner wall of the air inlet pipe (2) near the support ring (23). Multiple exhaust ports (31) extend into the interior of the filter cover (7). A retaining ring (24) is fixed between the inner walls of the intake pipe (2) near one edge. A convex nozzle (33) is provided between the inner walls of the intake pipe (2). The bottom of the convex nozzle (33) is in contact with one side of the retaining ring (24). The top of the convex nozzle (33) extends towards the cooling pipe (1). The inner wall of the convex nozzle (33) is in contact with the outer surface of the filter cylinder (38). Multiple air outlets (39) on the outer surface of the filter cylinder (38) are located inside the convex nozzle (33). A pressure ring (32) is threaded between the inner walls of the intake pipe (2). One side of the pressure ring (32) is in contact with the outer surface of the nozzle tube (33). A threaded ring (34) is rotatably provided at the bottom of the nozzle tube (33) near the inner edge. The inner surface of the threaded ring (34) is threaded. The inner wall of the threaded ring (34) is screwed into the threaded part of the outer surface of the filter cylinder (38). A plurality of support rods (35) are fixed on one side of the threaded ring (34). A nylon ring (36) is fixed in the middle of one end of the plurality of support rods (35). A plurality of bristles (37) are fixed at equal intervals on the inner wall of the nylon ring (36). One end of the plurality of bristles (37) is in contact with the outer surface of the filter cylinder (38). The feedback assembly includes an annular cover (41). An annular receiving cavity (29) is formed inside the side wall of the intake pipe (2). The top of the annular receiving cavity (29) extends to one side of the intake pipe (2), and the annular receiving cavity (29) is interconnected with multiple exhaust filters (31). The annular cover (41) is located inside the annular receiving cavity (29). Multiple vents (42) extending to the inner side are formed on the outer surface of the annular cover (41). All of the above are connected to the exhaust filter (31). The inner walls of both sides of the intake pipe (2) are provided with a dial (30). One side of each dial (30) is connected to one side of the annular receiving cavity (29). A dial block (48) is slidably arranged between the inner walls of the two dials (30). One end of each dial block (48) extends into the interior of the annular receiving cavity (29) and is connected to the annular cover (41). The bottom of the support ring (23) is fixed with a solid... The fixed tube (27) has a through hole (43) at the bottom of the filter cylinder (38) extending into the interior. The fixed tube (27) is connected to the through hole (43). A cylindrical rod (44) is provided between the inner walls of the fixed tube (27). One end of the cylindrical rod (44) is rotatably engaged inside the through hole (43). Two connecting rods (47) are fixed to the outer surface of the other end of the cylindrical rod (44). One end of each of the two connecting rods (47) is fixed to the lever (4). 8) On the outer surface of the fixed tube (27), multiple side openings (28) are equidistantly provided. One end of the cylindrical rod (44) is concave. A filter pad (46) is provided inside the concave part of one end of the cylindrical rod (44). Multiple bent air passages (45) are equidistantly provided on the outer surface of the cylindrical rod (44). One end of each of the multiple bent air passages (45) extends through to one side of the filter pad (46). The other end of each bent air passage (45) corresponds to the side opening (28).

2. The automotive EGR valve control device according to claim 1, characterized in that: The cooling circulation assembly includes an I-shaped bend sleeve (10), which is fixed between the inner walls of the cooling pipe (1). The middle part of the I-shaped bend sleeve (10) is open. The two sides of the I-shaped bend sleeve (10) are fixed to the inner walls of the cooling pipe (1). A first guide plate (12) is fixed at the middle of the inner wall of the I-shaped bend sleeve (10). There is a gap between the outer surface of the first guide plate (12) and the inner wall of the cooling pipe (1). A second guide plate (13) is fixed between the inner walls of the cooling pipe (1) near the two side edges. The two second guide plates (13) are located inside the I-shaped bend sleeve (10), and there is a gap between the inner side of the second guide plate (13) and the inner side of the I-shaped bend sleeve (10).

3. The automotive EGR valve control device according to claim 2, characterized in that: The interior of the I-shaped bending sleeve (10) is provided with multiple air distribution pipes (11) equidistantly arranged along the circumferential direction. Both ends of the multiple air distribution pipes (11) are respectively connected to both ends of the I-shaped bending sleeve (10). The multiple air distribution pipes (11) are respectively connected to the first guide plate (12) and the second guide plate (13). A water outlet pipe (4) is fixed on the outer surface of the cooling pipe (1) near the side of the I-shaped bending sleeve (10). A water inlet pipe (5) is fixed on the outer surface of the I-shaped bending sleeve (10) near the other side of the I-shaped bending sleeve (10). Both the water outlet pipe (4) and the water inlet pipe (5) are respectively connected to the interior of the cooling pipe (1).

4. The automotive EGR valve control device according to claim 3, characterized in that: The control assembly includes a valve core (14), and an adjustment cavity (15) is provided inside the valve housing (3). A bottom groove (18) is provided on one side of the adjustment cavity (15). The valve core (14) is disposed inside the adjustment cavity (15). One end of the valve core (14) extends into the interior of the cooling pipe (1), and the outer surface of the valve core (14) slides against the inner wall of the I-shaped bend sleeve (10). A reciprocating plate (16) is fixed inside the adjustment cavity (15) on the outer surface of the valve core (14). A spring (17) is fixed between one side of the reciprocating plate (16) and one side of the inner wall of the regulating cavity (15). An iron core (19) is provided on the inner bottom surface of the bottom groove (18). A coil (20) is wound on the outer surface of the iron core (19). A rubber ring (22) is fixed between the inner walls of the cooling pipe (1) on one side of the air outlet pipe (6). A sealing disc (21) is fixed on the outer surface of the valve core (14). One side of the sealing disc (21) is in contact with one side of the rubber ring (22).

5. A method for controlling an automotive EGR valve, applied to an automotive EGR valve control device as described in any one of claims 1-4, characterized in that, Includes the following steps: Step S1: A portion of the gas discharged from the car engine will enter the interior of the cooling pipe (1) through the intake pipe (2) and be cooled by the cooling circulation assembly. After cooling, it will be discharged through the exhaust pipe (6) and mixed with fresh air before entering the car engine again through the engine intake port. A portion of the gas discharged from the car engine will be filtered by the air filter assembly before entering the cooling pipe (1). During filtration, the air filter assembly will be assisted by the feedback assembly, and the operation of the entire device will be controlled by the control assembly. Step S2: When the control component is working, the coil (20) is wound around the outer surface of the iron core (19). The iron core (19) generates magnetic attraction force by switching the coil (20) on and off, thereby attracting the valve core (14) to control the opening and closing of the air outlet pipe (6) and the working status of the air filter component. Step S3: When the air filtration assembly and feedback assembly are working, as the valve core (14) slides towards one end of the valve housing (3), it can drive the filter cylinder (38) to slide towards the outside of the cylindrical groove (26). During the sliding process of the filter cylinder (38), it can drive the threaded ring (34) to rotate. The rotation of the threaded ring (34) will drive the nylon ring (36) to rotate through the support rod (35), thereby driving the bristles (37) to clean the outer surface of the filter cylinder (38). At this time, the air inlet (42) is connected to the exhaust filter (31), and the bend air passage (45) is connected. It is connected to the side opening (28), while the air outlet (39) is located inside the convex nozzle tube (33), and the mesh filter (40) is located inside the support ring (23). Therefore, during the cleaning process, the airflow can enter the interior of the filter cylinder (38) through the side opening (28) and the bent air passage (45), and flow out from the inside of the filter cylinder (38) to the outside. It can be used with the brush bristles (37) to remove the fine impurities attached to the outer surface of the filter cylinder (38). The fine impurities enter the filter cover (7) from the exhaust filter (31) along with the gas, and finally pass through the filter sleeve (9) and are discharged to the outside. Step S4: When the cooling circulation assembly is working, the gas entering one end of the cooling pipe (1) is cooled by the gas distribution pipe (11) and then enters the other end. It then flows out from the gas outlet pipe (6). Cooling water is injected into the interior of the cooling pipe (1) from the water inlet pipe (5). The cooling water cools the gas distribution pipe (11) inside the cooling pipe (1) and then flows out from the water outlet pipe (4). The cooling water flows in an S-shape along the first guide plate (12) and the two second guide plates (13) inside the cooling pipe (1), which ensures that the cooling water fully cools the gas distribution pipe (11).

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