New type of intelligent exhaust gas recirculation valve

Abstract

This invention discloses a novel intelligent exhaust gas recirculation valve. The invention relates to the field of exhaust gas recirculation valve technology. Air pipes are connected to both the bottom of the valve body and the outlet to facilitate exhaust gas flow. Exhaust gas enters from the bottom of the valve body and passes through a water-cooling device. After being cooled by the water-cooling device, the exhaust gas flows towards the outlet and is then fed into the intake system to mix with fresh air before entering the cylinder for combustion. This achieves the subsequent goal of reducing combustion temperature and optimizing emissions. A linear motor is installed at the top of the valve body, with its output connected to a valve stem. The linear motor controls the extension and retraction of the valve stem, causing the sealing plate to fit against the bottom of the valve body, thus controlling the intake and exhaust of air. A metal sleeve is installed on the outside of the valve stem for precise positioning and guidance, ensuring smooth and stable opening and closing of the sealing plate, reducing movement deviation and radial sway, and extending the service life of the equipment.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas recirculation valve technology, specifically a novel intelligent exhaust gas recirculation valve. Background Technology

[0002] With the rapid development of my country's economy, the automotive industry has grown in scale year by year. While automobiles have improved people's quality of life and facilitated travel, they have also harmed the environment. Currently, countries around the world are successively issuing increasingly stringent emission regulations. my country's China VI emission standard has the most stringent standards for nitrogen oxide emissions. The China VI emission standard requires that, excluding the effects of severe operating conditions and testing conditions, the total nitrogen oxide emissions of vehicles be reduced by 42% compared to the China V standard.

[0003] Exhaust gas recirculation (EGR) technology can effectively reduce engine pumping losses, lower fuel consumption and exhaust temperature, and is particularly effective in reducing nitrogen oxide content in emissions. Existing metal bushings and surface treatment technologies are prone to corrosion and jamming, and are limited by control systems, resulting in delayed product response.

[0004] In the operation of existing new intelligent exhaust gas recirculation valves, there are issues with the valve core and valve body not closing properly during the valve opening and closing process to control the intake of exhaust gas. This results in poor sealing and affects equipment operation. Additionally, wear and tear between components during operation can affect their service life. Therefore, a new design has been developed to address these issues. Summary of the Invention

[0005] To address the problems mentioned above, the present invention provides the following technical solution: a novel intelligent waste gas recirculation valve, comprising: The valve body has a cylindrical shell structure and a pipe located at the bottom of the cylindrical shell. A water cooling device is fixedly connected to the top of the valve body, a valve cover is fixedly connected to the top of the water cooling device, a linear motor is fixedly connected to the top of the valve cover, and an air outlet is fixedly connected to the outside of the valve body. The valve stem has a cylindrical block structure. The top of the valve stem is fixedly connected to the output end of a linear motor. A metal sleeve is fitted on the outside of the valve stem, and the top of the metal sleeve is fixedly connected to the top of the inner wall of the valve cover. A sealing plate, wherein a limiting device is fixedly connected to the top of the sealing plate, and the top of the limiting device is fixedly connected to the bottom of the valve stem; The water cooling device includes: A water-cooled housing with a semi-elliptical shell structure. An inlet pipe and an outlet pipe are fixedly connected to the outer side of the water-cooled housing away from the air outlet, and a partition plate is fixedly connected to the center of the inner wall of the water-cooled housing. A water-cooled cover plate has a U-shaped structure. A locking block is fixedly connected to the inner side of the water-cooled cover plate, and a filter block is inserted into the inner side of the locking block. The outer side of the water-cooled cover plate is fixedly connected to the water-cooled shell.

[0006] The water cooling device also includes: A plug-in block is disposed inside the water-cooling housing. The plug-in block is fixedly connected to the bottom of the inner wall of the water-cooling housing. The plug-in block is disposed correspondingly to the filter block. The filter block has a block groove on its inner side, and the inner side of the block groove is plugged into and adapted to the outer side of the plug-in block. The toothed block is configured as a strip-shaped structure, and a plurality of the toothed blocks are arranged in a uniform array on the plug-in block.

[0007] The bottom of the valve body is fixedly connected to a first node, which is correspondingly set to the groove of the sealing plate. The first node is pluggable and adaptable to the sealing plate. The bottom of the inner wall of the valve body is fixedly connected to a second node, which is pluggable and adaptable to the limiting device on the outside.

[0008] A high-temperature resistant rubber ring is fixedly connected to the top of the sealing plate, and an annular groove is opened at the bottom of the valve body at the position corresponding to the high-temperature resistant rubber ring.

[0009] An external end is fixedly connected to the side of the valve body away from the air outlet. A one-way valve is fixedly connected inside the external end. A fan is fixedly connected to the inner wall of the one-way valve. A grille is fixedly connected to the side of the one-way valve near the fan.

[0010] The limiting device includes a limiting top plate, a connecting column is provided inside the limiting top plate, a support column is fixedly connected to the bottom of the connecting column, a cap block is sleeved on the top of the connecting column, and a limiting device is fixedly connected to the middle side of the outside of the support column.

[0011] The limiting device includes a limiting plate, a groove on the outer circumference of the limiting plate, an insertion groove at the bottom of the limiting plate, a limiting support rod slidably connected inside the insertion groove, an insertion plate fixedly connected to the bottom of the limiting support rod, a first spring sleeved on the outer side of the limiting support rod, and a heat-resistant rubber block fixedly connected to the bottom circumference of the insertion plate.

[0012] The connecting column includes a cylindrical shell with a shell groove inside. A second spring is fixedly connected to the inner side of the shell groove, and a protrusion is fixedly connected to the other side of the second spring. The outer side of the protrusion is slidably connected to the inner side of the shell groove.

[0013] The cap block includes a cap shell, a cap groove is provided inside the cap shell, a pressing block is slidably connected to the inner side of the cap groove, and an external block is fixedly connected to the outer side of the pressing block.

[0014] This invention provides a novel intelligent exhaust gas recirculation valve. It has the following beneficial effects: I. This novel intelligent exhaust gas recirculation valve allows cooling liquid to enter the water-cooled housing through the inlet pipe. A partition plate separates the space within the housing, facilitating the flow of cooling liquid and improving its smoothness. Then, relying on heat exchange principles, it absorbs a large amount of heat carried by the exhaust gas flowing through the cavity, effectively reducing the overall temperature of the exhaust gas and minimizing thermal damage to the valve's internal seals and transmission components. It also effectively inhibits the condensation and carbon buildup of oil mist and other gaseous substances in the exhaust gas, stabilizing the exhaust gas transport. The cooling liquid then flows towards the outlet pipe, maintaining continuous flow. The water-cooled cover plate secures the filter block with clips, embedding the filter block into the water-cooled housing. This allows the cooling liquid to contact the filter block, effectively intercepting scale and other impurities in the cooling liquid, preventing fine particles from clogging the pipes, ensuring smooth liquid circulation, and effectively preventing decreased heat dissipation efficiency and localized overheating.

[0015] II. This new type of intelligent exhaust gas recirculation valve uses a support column for connecting and stabilizing components. A connecting column is installed at the top of the support column, which penetrates the limiting top plate. A cap block is then inserted into the top of the connecting column to fix the support column to the limiting top plate, thereby achieving modularity of the components and facilitating their installation and disassembly. The limiting top plate drives the support column to rise and fall inside the valve body along with the valve stem. A limiting device is installed on the support column. When the valve stem extends excessively with the linear motor, the limiting device will fit against the bottom of the inner wall of the valve body to block the exhaust gas inlet. This effectively cuts off the exhaust gas passage in a timely manner, preventing excessive exhaust gas from rushing in and disrupting the combustion process due to abnormally large valve opening, and preventing a decrease in power.

[0016] Third, in this new type of intelligent waste gas recirculation valve, as the valve stem controls the rise and fall of the limiting plate, the heat-resistant rubber block contacts the bottom of the valve body. The heat-resistant rubber block deforms under pressure, causing the insertion plate to move the limiting support rod into the groove on the plate surface. The insertion plate compresses and contracts the first spring, thereby playing a role in shock absorption and buffering, reducing rigid collisions between components, reducing vibration between components, improving the stability of component operation, reducing wear between components through the rubber block, extending the service life of components, and at the same time, deforming and fitting onto the valve body, improving the sealing effect between components.

[0017] IV. In this new type of intelligent exhaust gas recirculation valve, when the cap block is inserted from the cylindrical housing, the inner wall of the cap block squeezes the protruding block. The protruding block is under pressure and slides into the groove of the housing to compress the second spring, providing space for the component to enter. Then, the second spring supports the protruding block, allowing it to enter the groove of the cap block, thereby achieving a rapid fixing effect between components and improving the efficiency of component installation.

[0018] 5. In this new type of intelligent exhaust gas recirculation valve, the protruding block enters the groove of the cap, forming a snap-fit ​​effect between the components, thus achieving a fixing effect between the components. By pushing the pressing block to slide towards the protruding block, the protruding block is pushed away from the groove of the cap, thereby achieving quick disassembly of the components and facilitating component disassembly. The external block is set on the pressing block and slides in connection with the groove of the cap, thereby limiting the sliding space of the components and preventing the components from derailing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the novel intelligent waste gas recirculation valve of the present invention; Figure 2 This is a schematic diagram of the air outlet structure of the present invention; Figure 3 This is a schematic diagram of the metal sleeve structure of the present invention; Figure 4 This is a schematic diagram of the fan structure of the present invention; Figure 5 This is a schematic diagram of the support column structure of the present invention; Figure 6 This is a schematic diagram of the limiting plate structure of the present invention; Figure 7 This is a schematic diagram of the insertion plate structure of the present invention; Figure 8 This is a schematic diagram of the second spring structure of the present invention.

[0020] In the diagram: 1. Valve body; 2. Water cooling device; 3. Valve cover; 4. Linear motor; 5. Restricting device; 6. Air outlet; 7. First node; 8. Sealing plate; 9. Valve stem; 10. Metal sleeve; 11. Annular groove; 12. Second node; 13. High-temperature resistant rubber ring; 14. External connection end; 15. One-way valve; 16. Grille plate; 17. Fan; 201. Water-cooled housing; 202. Partition plate; 203. Liquid inlet pipe; 204. Filter block; 205. Water-cooled cover plate; 206. Clamping block; 207. Liquid outlet pipe; 208. Block groove ; 209. Insertion block; 210. Toothed block; 51. Restricting top plate; 52. Restricting device; 53. Support column; 54. Connecting column; 55. Cap block; 521. Restricting plate; 522. Plate surface groove; 523. Insertion slot; 524. Restricting support rod; 525. First spring; 526. Insertion plate; 527. Heat-resistant rubber block; 541. Cylindrical shell; 542. Shell groove; 543. Second spring; 544. Protrusion block; 551. Cap shell; 552. Cap groove; 553. Pressing block; 554. External block. Detailed Implementation

[0021] 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.

[0022] First embodiment, such as Figures 1 to 4 As shown, the present invention provides a technical solution: a novel intelligent exhaust gas recirculation valve, comprising: Valve body 1, which has a cylindrical shell structure and a pipe set at the bottom of the cylindrical shell, a water cooling device 2 is fixedly connected to the top of the valve body 1, a valve cover 3 is fixedly connected to the top of the water cooling device 2, a linear motor 4 is fixedly connected to the top of the valve cover 3, and an air outlet 6 is fixedly connected to the outside of the valve body 1. Valve stem 9 has a cylindrical block structure. The top of valve stem 9 is fixedly connected to the output end of linear motor 4. A metal sleeve 10 is sleeved on the outside of valve stem 9. The top of metal sleeve 10 is fixedly connected to the top of the inner wall of valve cover 3. A sealing plate 8 is fixedly connected to a limiting device 5 at its top, and the top of the limiting device 5 is fixedly connected to the bottom of the valve stem 9. Air pipes are connected to the bottom of the valve body 1 and the outlet 6 to facilitate exhaust gas flow. Exhaust gas enters from the bottom of the valve body 1, passes through a water-cooling device 2, and is cooled before flowing towards the outlet 6. The exhaust gas is then sent into the intake system to mix with fresh air and enter the cylinder for combustion, thereby achieving the goal of reducing combustion temperature and optimizing emissions. A linear motor 4 is installed at the top of the valve body 1, and its output is connected to the valve stem 9. The linear motor 4 controls the extension and retraction of the valve stem 9, causing the sealing plate 8 to fit against the bottom of the valve body 1, thus controlling the intake and exhaust. A metal sleeve 10 is installed on the outside of the valve stem 9 to provide precise positioning and guidance, ensuring smooth and stable reciprocating opening and closing of the sealing plate 8, reducing movement deviation and radial sway, reducing frictional wear, improving component wear resistance, enhancing overall structural strength and operational stability, and extending equipment lifespan.

[0023] A first node 7 is fixedly connected to the bottom of the valve body 1. The first node 7 is correspondingly set with the slot of the sealing plate 8 and is pluggable with the sealing plate 8. A second node 12 is fixedly connected to the bottom of the inner wall of the valve body 1. The outer side of the second node 12 is pluggable with the limiting device 5. The valve stem 9 controls the sealing plate 8 to move up and down to fit or move away from the bottom of the valve body 1, thereby controlling the intake of exhaust gas. The slot of the sealing plate 8 is pluggable with the first node 7, which plays a certain positioning role, ensuring the accuracy of the closure between the sealing plate 8 and the bottom of the valve body 1, improving the sealing effect between components, preventing excess exhaust gas from interfering with normal combustion conditions, and maintaining stable pipeline gas pressure. The second node 12 is used to adapt to the operation of the limiting device 5, limiting the operation of the limiting device 5, and preparing for the subsequent operation of the components.

[0024] A high-temperature resistant rubber ring 13 is fixedly connected to the top of the sealing plate 8, and an annular groove 11 is provided at the bottom of the valve body 1 at a position corresponding to the high-temperature resistant rubber ring 13. The sealing plate 8 controls the high-temperature resistant rubber ring 13 to fit into the annular groove 11. By filling the groove with the rubber ring, a tight seal is achieved to prevent the leakage of exhaust gas. At the same time, the high-temperature resistant rubber ring resists the corrosion of high-temperature exhaust gas and temperature deformation, buffers the vibration displacement caused by the contact of components, stabilizes the assembly position, and improves the overall structural stability and service life.

[0025] An external end 14 is fixedly connected to the side of the valve body 1 away from the air outlet 6. A one-way valve 15 is fixedly connected inside the external end 14. A fan 17 is fixedly connected to the inner wall of the one-way valve 15. A grille 16 is fixedly connected to the side of the one-way valve 15 near the fan 17. The external end 14 connects to the one-way valve 15, which communicates with the outside of the valve body 1. This restricts the leakage of exhaust gas from inside the valve body 1, preventing it from affecting equipment operation. At the same time, after long-term operation, impurities and particles easily accumulate inside the valve body 1. The fan 17 generates airflow, which passes through the one-way valve 15 and enters the valve body 1, thus flushing and cleaning impurities and particles, clearing the airflow channel, preventing particle accumulation from obstructing airflow, reducing component wear and jamming, delaying the aging and damage of internal components, and reducing the probability of failure. The grille 16 serves to block external impurities, preventing them from entering the pipeline and affecting equipment operation.

[0026] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 3 to 4 As shown, the water cooling device 2 includes: The water-cooled housing 201 has a semi-elliptical housing structure. The side of the water-cooled housing 201 away from the air outlet 6 is fixedly connected to the liquid inlet pipe 203 and the liquid outlet pipe 207 respectively. The partition plate 202 is fixedly connected to the center of the inner wall of the water-cooled housing 201. The water-cooled cover plate 205 has a U-shaped structure. A locking block 206 is fixedly connected to the inner side of the water-cooled cover plate 205. A filter block 204 is inserted into the inner side of the locking block 206. The outer side of the water-cooled cover plate 205 is fixedly connected to the water-cooled housing 201. Cooling liquid enters the water-cooled housing 201 through the inlet pipe 203. The space of the water-cooled housing 201 is divided by the partition plate 202 to facilitate the flow of cooling liquid inside the water-cooled housing 201 and improve the smoothness of liquid flow. Then, relying on the principle of heat exchange, it absorbs a large amount of heat carried by the exhaust gas flowing through the cavity, effectively reducing the overall temperature of the exhaust gas and reducing the thermal damage of high-temperature exhaust gas to the internal seals and transmission components of the valve body 1. It also effectively inhibits the condensation and carbon deposition of oil mist gaseous substances in the exhaust gas and stabilizes the exhaust gas delivery state. Then, the cooling liquid flows to the outlet pipe 207 to maintain the liquid flow and repetitive operation. The water-cooled cover plate 205 fixes the filter block 204 through the clamping block 206. The filter block 204 is embedded in the water-cooled housing 201 by the water-cooled cover plate 205, so that the cooling liquid comes into contact with the filter block 204. This effectively intercepts various impurities such as scale in the cooling liquid, avoids fine particles from clogging the pipe, ensures smooth liquid circulation, and effectively prevents the decrease in heat dissipation efficiency and the occurrence of local overheating.

[0027] Water cooling device 2 also includes: The plug-in block 209 is disposed inside the water-cooled housing 201. The plug-in block 209 is fixedly connected to the bottom of the inner wall of the water-cooled housing 201. The plug-in block 209 is correspondingly disposed with the filter block 204. The inner side of the filter block 204 is provided with a block groove 208, and the inner side of the block groove 208 is plugged and matched with the outer side of the plug-in block 209. The toothed block 210 is a strip-shaped structure, and several toothed blocks 210 are evenly arrayed on the insertion block 209. After the water-cooled cover plate 205 carries the filter block 204 into the water-cooled housing 201, the groove 208 of the filter block 204 is inserted into the insertion block 209. This increases the contact area between the components, improves the friction between the components, enhances the stability of the filter block 204, and prevents the liquid from flowing too fast, causing the filter block to shake and affecting the filtration and adsorption effect. The toothed blocks 210 are set on the insertion block 209 to achieve the fitting effect between the components, further reducing the space between the components and reducing the shaking range.

[0028] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 5 to 8As shown, the limiting device 5 includes a limiting top plate 51, a connecting column 54 is provided inside the limiting top plate 51, a support column 53 is fixedly connected to the bottom of the connecting column 54, a cap block 55 is sleeved on the top of the connecting column 54, and a limiting device 52 is fixedly connected to the middle side of the support column 53. The support column 53 is used for connecting components and stabilizing components. A connecting column 54 is set at the top of the support column 53. The connecting column 54 passes through the limiting top plate 51. Then, the cap block 55 is inserted into the top of the connecting column 54 to fix the support column 53 on the limiting top plate 51. This realizes the modularization of components and facilitates the installation and disassembly of components. The limiting top plate 51 drives the support column 53 to rise and fall inside the valve body 1 along with the valve stem 9. A limiting device 52 is set on the support column 53. When the valve stem 9 extends excessively with the linear motor 4, the limiting device 52 will fit against the bottom of the inner wall of the valve body 1 to block the exhaust gas inlet. This can cut off the exhaust gas passage in time, prevent the valve from opening abnormally wide and causing excessive exhaust gas to rush in and disrupt the combustion conditions, and prevent power loss.

[0029] The limiting device 52 includes a limiting plate 521. A groove 522 is provided on the outer circumference of the limiting plate 521. An insertion groove 523 is provided at the bottom of the limiting plate 521. A limiting support rod 524 is slidably connected inside the insertion groove 523. An insertion plate 526 is fixedly connected to the bottom of the limiting support rod 524. A first spring 525 is sleeved on the outer side of the limiting support rod 524. A heat-resistant rubber block 527 is fixedly connected to the bottom circumference of the insertion plate 526. As the valve stem 9 controls the lifting and lowering of the limiting plate 521, the heat-resistant rubber block 527 contacts the bottom of the inner wall of the valve body 1. The heat-resistant rubber block 527 deforms under pressure, causing the insertion plate 526 to drive the limiting support rod 524 to move into the groove 522 on the plate surface. The insertion plate 526 compresses and contracts the first spring 525, thereby playing a role in shock absorption and buffering, reducing rigid collisions between components, reducing vibration between components, improving the stability of component operation, reducing wear between components through the rubber block, extending the service life of components, and at the same time deforming and adhering to the valve body 1, improving the sealing effect between components.

[0030] The connecting post 54 includes a cylindrical housing 541, with a housing groove 542 inside the cylindrical housing 541. A second spring 543 is fixedly connected to the inner side of the housing groove 542, and a protrusion 544 is fixedly connected to the other side of the second spring 543. The outer side of the protrusion 544 is slidably connected to the inner side of the housing groove 542. When the cap block 55 is inserted from the cylindrical housing 541, the inner wall of the cap block 55 presses against the protrusion 544. Under pressure, the protrusion 544 slides into the housing groove 542, compressing the second spring 543 and providing space for the component to enter. Then, the second spring 543 supports the protrusion 544, allowing it to enter the groove of the cap block 55. This achieves a rapid fixing effect between components and improves the efficiency of component installation.

[0031] The cap block 55 includes a cap housing 551, with a cap groove 552 inside the cap housing 551. A pressing block 553 is slidably connected to the inner side of the cap groove 552, and an external connecting block 554 is fixedly connected to the outer side of the pressing block 553. The protrusion 544 enters the cap groove 552, forming a snap-fit ​​effect between the components, thus achieving a fixing effect between the components. By pushing the pressing block 553 to slide towards the protrusion 544, the protrusion 544 is pushed away from the inside of the cap groove 552, thereby achieving quick detachment of the components and facilitating component disassembly. The external connecting block 554 is set on the pressing block 553 and is slidably connected to the inside of the cap groove 552, thereby limiting the sliding space of the components and preventing the components from derailing.

[0032] In use, the bottom of valve body 1 serves as the exhaust gas inlet, and the side of the outlet 6 serves as the exhaust gas outlet. The high-temperature exhaust gas generated when the engine is running enters the interior of valve body 1 from the bottom through the pipe. Then, the exhaust gas passes through the interior of valve body 1 and is sent to the outlet 6 to the subsequent intake system to mix with fresh air. Together, they enter the cylinder to participate in combustion. The exhaust gas delivery volume is adjusted in real time according to the engine operating conditions to achieve the purpose of reducing combustion temperature and optimizing emissions. A water cooling device 2 is installed on the top of the valve body 1. Cooling liquid enters the water cooling housing 201 from the inlet pipe 203 and then flows out to the outlet pipe 207 to perform a circulation operation. The water cooling absorbs the heat of the exhaust gas inside the valve body 1 by means of the circulating coolant and the principle of heat exchange, effectively reducing the overall temperature of the exhaust gas, reducing the damage of high temperature to the components, and stabilizing the exhaust gas delivery state. The entire device uses a linear motor 4 to control the extension and retraction of the valve stem 9 inside the metal sleeve 10. The valve stem 9 is controlled by a limiting device 5 to fit the sealing plate 8 against the bottom of the valve body 1, thereby controlling the amount of exhaust gas entering. Among them, the metal sleeve 10 uses graphite as a new bushing material. Its self-lubricating properties (friction coefficient 0.1-0.2), high temperature resistance (400-500℃) and chemical stability make it an ideal substitute. The graphite material is optimized, and the processing technology for anti-chipping and efficient dust removal is improved, the process flow is optimized, and the performance of the parts is enhanced. The research on the integration of hard anodizing treatment and PTFE spraying technology on the inner wall of valve body 1 solves problems such as surface activation, low-temperature electrolysis, pore opening, spraying penetration, and low-temperature curing of the cavity, improves the corrosion resistance, wear resistance and anti-adhesion of the cavity, and alleviates the problem of oxide film brittleness. It is suitable for EGR valves in high-temperature, acidic waste gas and particulate scouring environments. During the lifting and lowering operation of the valve stem 9 controlled by the linear motor 4, it is prevented that the valve stem 9 will cause the sealing plate 8 to extend excessively outward due to motor problems. This allows the limiting device 5 to fit against the bottom of the inner wall of the valve body 1, thereby timely cutting off the exhaust gas passage, preventing the valve port from opening abnormally wide and causing excessive exhaust gas to rush in and disrupt the combustion process, preventing power loss and abnormal emissions, improving the operational safety and stability of the valve body 1, and reducing operational hazards caused by sudden failures.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

Claims

1. A novel intelligent exhaust gas recirculation valve, characterized in that, include: The valve body (1) has a cylindrical shell structure and a pipe set at the bottom of the cylindrical shell. A water cooling device (2) is fixedly connected to the top of the valve body (1). A valve cover (3) is fixedly connected to the top of the water cooling device (2). A linear motor (4) is fixedly connected to the top of the valve cover (3). An air outlet (6) is fixedly connected to the outside of the valve body (1). The valve stem (9) has a cylindrical block structure. The top of the valve stem (9) is fixedly connected to the output end of the linear motor (4). A metal sleeve (10) is sleeved on the outside of the valve stem (9). The top of the metal sleeve (10) is fixedly connected to the top of the inner wall of the valve cover (3). A sealing plate (8) is fixedly connected to the top of the sealing plate (8), and the top of the limiting device (5) is fixedly connected to the bottom of the valve stem (9); The water cooling device (2) includes: Water-cooled housing (201) has a semi-elliptical housing structure. The side of the water-cooled housing (201) away from the air outlet (6) is fixedly connected to the liquid inlet pipe (203) and the liquid outlet pipe (207). A partition plate (202) is fixedly connected to the center of the inner wall of the water-cooled housing (201). Water-cooled cover plate (205) has a U-shaped structure. A locking block (206) is fixedly connected to the inner side of the water-cooled cover plate (205). A filter block (204) is inserted into the inner side of the locking block (206). The outer side of the water-cooled cover plate (205) is fixedly connected to the water-cooled shell (201).

2. The novel intelligent waste gas recirculation valve according to claim 1, characterized in that: The water cooling device (2) also includes: A plug-in block (209) is disposed inside the water-cooled housing (201). The plug-in block (209) is fixedly connected to the bottom of the inner wall of the water-cooled housing (201). The plug-in block (209) is disposed correspondingly to the filter block (204). The filter block (204) has a block groove (208) on its inner side. The inner side of the block groove (208) is plugged and matched with the outer side of the plug-in block (209). The toothed block (210) is configured as a strip-shaped structure. Several toothed blocks (210) are arranged in a uniform array on the plug-in block (209).

3. The novel intelligent waste gas recirculation valve according to claim 1, characterized in that: The bottom of the valve body (1) is fixedly connected to a first node (7), which is correspondingly set to the groove of the sealing plate (8). The first node (7) and the sealing plate (8) are plugged and matched. The bottom of the inner wall of the valve body (1) is fixedly connected to a second node (12), which is plugged and matched to the limiting device (5) on the outside.

4. The novel intelligent waste gas recirculation valve according to claim 3, characterized in that: The top of the sealing plate (8) is fixedly connected with a high-temperature resistant rubber ring (13), and the bottom of the valve body (1) is provided with an annular groove (11) corresponding to the high-temperature resistant rubber ring (13).

5. The novel intelligent waste gas recirculation valve according to claim 4, characterized in that: An external end (14) is fixedly connected to the side of the valve body (1) away from the air outlet (6). A one-way valve (15) is fixedly connected inside the external end (14). A fan (17) is fixedly connected to the inner wall of the one-way valve (15). A grid plate (16) is fixedly connected to the side of the one-way valve (15) near the fan (17).

6. The novel intelligent waste gas recirculation valve according to claim 1, characterized in that: The limiting device (5) includes a limiting top plate (51), a connecting column (54) is provided inside the limiting top plate (51), a support column (53) is fixedly connected to the bottom of the connecting column (54), a cap block (55) is sleeved on the top of the connecting column (54), and a limiting device (52) is fixedly connected to the middle side of the outside of the support column (53).

7. The novel intelligent waste gas recirculation valve according to claim 6, characterized in that: The limiting device (52) includes a limiting plate (521), a plate surface groove (522) is provided on the outer circumference of the limiting plate (521), an insertion groove (523) is provided at the bottom of the limiting plate (521), a limiting support rod (524) is slidably connected inside the insertion groove (523), an insertion plate (526) is fixedly connected to the bottom of the limiting support rod (524), a first spring (525) is sleeved on the outer side of the limiting support rod (524), and a heat-resistant rubber block (527) is fixedly connected to the bottom circumference of the insertion plate (526).

8. The novel intelligent waste gas recirculation valve according to claim 6, characterized in that: The connecting column (54) includes a cylindrical shell (541), and a shell groove (542) is provided inside the cylindrical shell (541). A second spring (543) is fixedly connected to the inner side of the shell groove (542), and a protrusion (544) is fixedly connected to the other side of the second spring (543). The outer side of the protrusion (544) is slidably connected to the inner side of the shell groove (542).

9. The novel intelligent waste gas recirculation valve according to claim 6, characterized in that: The cap block (55) includes a cap shell (551), a cap groove (552) is provided inside the cap shell (551), a pressing block (553) is slidably connected to the inner side of the cap groove (552), and an external block (554) is fixedly connected to the outer side of the pressing block (553).

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