An exhaust gas purifying apparatus for an engine

Abstract

This invention discloses an exhaust purification device for an engine, comprising an exhaust pipe body, high-temperature resistant circular plates, catalytic converters, and guide wheels. A group of high-temperature resistant circular plates rotate to different states, and a single catalytic converter is inserted into a group of guide wheels. The advantages of this invention are: it replaces the traditional fixed catalytic converter structure with multiple catalytic converters, solving the problem of inconvenient catalytic converter replacement; it eliminates the need for complete disassembly and cleaning, allowing users to purchase and replace the catalytic converters themselves, thus reducing maintenance costs; it creates an adjustable exhaust gas flow channel inside the exhaust pipe body, and the complex exhaust gas flow channel prevents direct exhaust gas discharge, improving the sufficiency of catalytic contact between exhaust gas and the distributed catalytic converters; and it utilizes the impact force of the exhaust gas flow to flush the second channel and honeycomb plate on the vertically positioned high-temperature resistant circular plates, accelerating the removal of dust and other impurities, and extending the effective service life of the high-temperature resistant circular plates and their accessories.

Description

Technical Field

[0001] This invention relates to the field of engine exhaust purification technology, specifically an exhaust purification device for engines. Background Technology

[0002] The engine is the "heart" of a motorcycle, directly determining its power, fuel consumption, and riding experience. The internal structure of a motorcycle engine's exhaust purification device is intricately designed, and critical catalytic converters are particularly difficult to replace and clean. Conventional "disassembly and internal cleaning" often causes irreversible damage or renders the engine unusable. Furthermore, it requires a high level of expertise from the personnel performing the disassembly and cleaning, increasing maintenance costs. Therefore, this paper proposes an exhaust purification device for motorcycle engines to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide an exhaust purification device for engines in order to solve the above-mentioned problems.

[0004] The present invention achieves the above-mentioned objective through the following technical solution: an exhaust purification device for an engine, comprising high-temperature resistant circular plates and a catalytic converter distributed inside the exhaust pipe body, wherein a group of high-temperature resistant circular plates are respectively rotated to different states, and guide wheels are distributed and installed in the annular grooves at the annular surface of each high-temperature resistant circular plate, and the same catalytic converter is inserted between a group of guide wheels, wherein the catalytic converter is partially exposed at the connection between the first channel and the second channel, and both ends of the catalytic converter are respectively fixed to the openings of two shaft tubes in the same group by bolts, and one end of the two shaft tubes is symmetrically installed on the annular surface of the high-temperature resistant circular plate in a coaxial manner.

[0005] In a further technical solution, the catalytic wire includes a core and a catalytic layer. The catalytic layer is electroplated on the surface of the core. The core is not limited to steel. The catalytic layer is divided into several segments according to the length of the catalytic wire, wherein at least the catalytic layer portion in every two consecutive segments is a catalyst of a different material.

[0006] In a further technical solution, the two ends of the catalyst line pass through the interiors of two shaft tubes in the same group, and most of the catalyst line passes through the first channel, which is also connected to the interior of the annular groove.

[0007] In a further technical solution, the first channel is distributed inside the high-temperature resistant circular plate, and the front and rear circular surfaces of the high-temperature resistant circular plate are connected by a number of second channels.

[0008] In a further technical solution, the annular surface of the high-temperature resistant circular plate slides in contact with the inner wall of the exhaust pipe, and a protective ring is also provided in the annular groove located at the annular surface of the high-temperature resistant circular plate.

[0009] In a further technical solution, the shaft tube is rotatably connected to the corresponding part of the exhaust pipe body through a sealed bearing. A worm gear is installed at the other end of the shaft tube, and the worm gear is connected to the worm drive. Both the worm gear and the worm are set in the side frame, and the two side frames are respectively set on both sides of the exhaust pipe body. A sealing cover is installed at the frame opening of the side frame.

[0010] In a further technical solution, both ends of the worm are rotatably mounted on the upper and lower walls of the side frame via bearings, and a screw-connector is installed on the shaft at one end of the worm. The screw-connector is located in a countersunk hole, and the countersunk hole is opened on one side of the side frame.

[0011] In a further technical solution, a channel is provided in the middle of the bolt, and the corresponding part of the catalyst wire is inserted into the channel, and a sealing element is provided inside the channel.

[0012] In a further technical solution, honeycomb panels are installed on both the front and rear circular surfaces of the high-temperature resistant circular plate.

[0013] Compared with the prior art, the advantages of the present invention are: Advantage 1: By using multiple catalytic lines to replace the traditional fixed catalytic structure, the problem of inconvenient replacement of the catalytic structure is solved. There is no need for overall disassembly and cleaning. Users can simply purchase the catalytic lines for disassembly and replacement, thus reducing maintenance costs. Advantage 2: By adjusting the rotation of a set of high-temperature resistant circular plates under the control of their respective shaft tubes, each high-temperature resistant circular plate in the set can be in a different state, thereby forming an adjustable exhaust gas flow channel inside the exhaust pipe. The exhaust gas flow channel is complex, preventing the exhaust gas from being directly discharged and improving the sufficiency of the exhaust gas contacting the distributed catalytic converter. Advantage 3: By adjusting one high-temperature resistant circular plate to a vertical position while the remaining high-temperature resistant circular plates are in a horizontal position, and by using the impact force of the exhaust gas flow to flush the second channel and honeycomb plate on the vertical high-temperature resistant circular plate, dust and other impurities are quickly discharged, extending the effective service life of the high-temperature resistant circular plate and its accessories. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a cross-sectional view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 for Figure 2 Enlarged view of the connection structure at point A in the middle; Figure 4 This is a perspective view of the high-temperature resistant circular plate connection structure of the present invention; Figure 5 This is a front view of the high-temperature resistant circular plate connection structure of the present invention; Figure 6 This is a schematic diagram of the catalytic line structure of the present invention; Figure 7 This is a diagram illustrating how a set of high-temperature resistant circular plates of the present invention are adjusted from one state to another.

[0017] In the diagram: 1. Exhaust pipe body; 110. Side frame; 111. Countersunk hole; 120. Sealing cap; 2. Catalytic converter body; 210. Core wire; 220. Catalytic layer; 3. High-temperature resistant circular plate; 310. Annular groove; 320. First channel; 330. Second channel; 340. Shaft tube; 4. Protective ring; 5. Honeycomb plate; 6. Guide wheel; 7. Worm gear; 8. Worm; 9. Tightening connector; 10. Bolt. Detailed Implementation

[0018] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Please see Figure 1-7As shown, an exhaust purification device for an engine includes high-temperature resistant circular plates 3 and catalytic converter 2 distributed inside an exhaust pipe body 1. A group of high-temperature resistant circular plates 3 are rotated to different states, and guide wheels 6 are distributed and installed in the annular groove 310 at the annular surface of each high-temperature resistant circular plate 3. The same catalytic converter 2 is inserted between a group of guide wheels 6. The catalytic converter 2 is partially exposed at the connection between the first channel 320 and the second channel 330. Both ends of the catalytic converter 2 are fixed to the openings of two shaft tubes 340 in the same group by bolts 10, and one end of the two shaft tubes 340 is symmetrically installed on the annular surface of the high-temperature resistant circular plate 3 in a coaxial manner. The catalytic line 2 is used to catalyze the harmful exhaust gas entering the first channel 320 and the second channel 330 in a high-temperature environment. At the same time, both ends of the catalytic line 2 are fixed to the other end ports of the two shaft tubes 340 by bolts 10, so that the catalytic line 2 can be disassembled and replaced by using a clamp and guide when the bolts 10 are removed. For details, please refer to the relevant introduction in "Basic Purification Principles". The high-temperature resistant circular plate 3 serves two main purposes. First, it acts as a carrier for mounting the catalytic converter 2. By connecting the first channel 320 and the second channel 330, it forms a dense exhaust gas permeation surface, allowing exhaust gas to enter both the first channel 320 and the second channel 330. Second, the high-temperature resistant circular plate 3 is independently adjustable within the exhaust pipe body 1, allowing all the high-temperature resistant circular plates 3 in the same group to rotate in different states. This creates an adjustable exhaust gas flow channel within the exhaust pipe body 1, and the complex exhaust gas flow channel prevents direct exhaust gas discharge, thus improving the sufficiency of catalytic contact between the exhaust gas and the distributed catalytic converter 2. The guide wheel 6 is used to support the catalytic line 2 that is rolling and in contact, so that the taut catalytic line 2 does not contact the inner wall of the first channel 320, ensuring that there is a gap between the surface of the catalytic line 2 and the inner wall of the first channel 320, which facilitates the entry of exhaust gas, and also facilitates the guidance of the catalytic line 2 and the extraction of the catalytic line 2. The shaft tube 340 is used to support the rotation of the high-temperature resistant circular plate 3 and to fix the end of the catalytic line 2 located at the corresponding port of the shaft tube 340 in conjunction with the bolt 10.

[0022] The catalytic wire 2 includes a wire core 210 and a catalytic layer 220. The catalytic layer 220 is electroplated on the surface of the wire core 210. The wire core 210 is not limited to steel. The catalyst layer 220 can be made of platinum, palladium and rhodium. The catalyst layer 220 is divided into several segments according to the length of the catalyst line 2. For example, three consecutive segments are distributed as a group to electroplat the platinum layer, palladium and rhodium layer, or the catalyst layer 220 on each of the three catalyst lines 2 is platinum, palladium and rhodium respectively, so as to meet the catalytic purification requirements of different harmful gases.

[0023] like Figure 4 and Figure 5 As shown, the two ends of the catalyst line 2 pass through the interiors of two shaft tubes 340 in the same group, and most of the catalyst line 2 passes through the first channel 320. The first channel 320 is also connected to the interior of the annular groove 310, which can ensure that the exhaust gas flow and catalyst line 2 are in full contact.

[0024] The first channel 320 is distributed inside the high-temperature resistant circular plate 3, and the front and rear circular surfaces of the high-temperature resistant circular plate 3 are connected by a number of second channels 330 to ensure that the exhaust gas passes through the second channels 330.

[0025] like Figure 2 As shown, the annular surface of the high-temperature resistant circular plate 3 is in sliding contact with the inner wall of the exhaust pipe body 1, and a protective ring 4 is also provided in the annular groove 310 located at the annular surface of the high-temperature resistant circular plate 3.

[0026] like Figure 3 As shown, the shaft tube 340 is rotatably connected to the corresponding part of the exhaust pipe body 1 through a sealed bearing. A worm gear 7 is installed at the other end of the shaft tube 340, and the worm gear 7 is connected to the worm 8 in a transmission manner. The worm gear 7 and the worm 8 are both arranged in the side frame 110, and the two side frames 110 are respectively arranged on both sides of the exhaust pipe body 1. A sealing cover 120 is installed at the frame opening of the side frame 110. Both ends of the worm gear 8 are rotatably mounted on the upper and lower walls of the side frame 110 via bearings, and a screw connector 9 is installed on the shaft at one end of the worm gear 8. The screw connector 9 is located in the countersunk hole 111, and the countersunk hole 111 is opened on one side of the side frame 110. By using the configuration tool to rotate the screw joint 9, the worm 8 is driven to rotate, which in turn causes the worm wheel 7, which is connected to the worm 8, to rotate. This, in turn, causes the shaft tube 340 connected to the worm wheel 7 and the high-temperature resistant circular plate 3 connected to the shaft tube 340 to rotate, thereby achieving the effect of adjusting the state of the high-temperature resistant circular plate 3. After adjustment, the high-temperature resistant circular plate 3 remains stationary.

[0027] like Figure 3 As shown, the bolt 10 has a hole in the middle, and the corresponding part of the catalyst wire 2 is inserted into the hole. A sealing element is provided inside the hole.

[0028] like Figure 1 As shown, honeycomb panels 5 are installed on both the front and rear circular surfaces of the high-temperature resistant circular plate 3.

[0029] The basic principle of purification: High-temperature exhaust gas sequentially passes through a set of second channels 330 located on each high-temperature resistant circular plate 3. The catalytic coil 2 portion located in the second channel 330 and the catalytic coil 2 portion located in the first channel 320 catalyze the harmful gases in the exhaust gas under high-temperature conditions, converting the harmful gases passing through the first channel 320 and the second channel 330 into emitable gases (such as...). (etc.), and there is a gap between the catalyst line 2 part located in the second channel 330 and the second channel 330 to avoid obstructing the flow of exhaust gas; A set of high-temperature resistant circular plates 3, under the control of their respective corresponding shaft tubes 340, can make each high-temperature resistant circular plate 3 in a different state, thereby forming an adjustable exhaust gas flow channel inside the exhaust pipe body 1. The exhaust gas flow channel is complex, preventing the exhaust gas from being directly discharged and improving the sufficiency of the exhaust gas contacting and catalyzing the distributed catalytic lines 2. Combination Figure 1 and Figure 7 As shown, when the two high-temperature resistant circular plates 3 on the left and right sides are in a horizontal state and the middle high-temperature resistant circular plate 3 is rotated to a vertical state, the exhaust gas flow with impact flows from left to right inside the exhaust pipe body 1. At the same time, the external port of the exhaust pipe body 1 has a pre-set impurity adsorption and collection container or device. Therefore, the impact force of the exhaust gas flow can be used to flush the second channel 330 and honeycomb plate 5 on the vertical high-temperature resistant circular plate 3, accelerate the falling and discharge of dust and other impurities, and extend the effective service time of the high-temperature resistant circular plate 3 and its accessories. During the backwashing cleaning process of the high-temperature resistant circular plate 3, one high-temperature resistant circular plate 3 rotates and changes face to a vertical state, while the remaining high-temperature resistant circular plates 3 are in a horizontal state, thus completing the cleaning of a set of high-temperature resistant circular plates 3. Combination Figure 3 and Figure 4 As shown, when replacing or repairing the catalyst line 2, the user first opens the sealing cover 120 and locates the replacement part. Then, the bolt 10 is removed from the corresponding port of the shaft tube 340, and the hole in the middle of the bolt 10 is separated from the end of the catalyst line 2. Then, one end of the provided thin steel wire is tied to one end of the catalyst line 2. Then, the other end of the catalyst line 2 is clamped with pliers and pulled outward to completely remove the catalyst line 2. At the same time, the thin steel wire enters the first channel 320. Then, one end of the new catalyst line 2 is tied to the other end of the thin steel wire. Then, the thin steel wire is clamped with pliers and pulled outward until the new catalyst line 2 is in place in the first channel 320. Finally, the bolt 10 and the sealing cover 120 are installed and reset in sequence to complete the replacement of the catalyst line 2. This solves the problem of inconvenient replacement of the catalyst structure. There is no need for overall disassembly and cleaning. Users can purchase the catalyst line 2 themselves for disassembly and replacement, reducing maintenance costs. In summary, the advantages of this invention are: Advantage 1: By using multiple catalyst lines 2 to replace the traditional fixed catalyst structure, the problem of inconvenient replacement of the catalyst structure is solved. There is no need for overall disassembly and cleaning. Users can simply purchase catalyst lines 2 to disassemble and replace them, which reduces maintenance costs. Advantage 2: By adjusting the rotation of a set of high-temperature resistant circular plates 3 under the control of their respective corresponding shaft tubes 340, each high-temperature resistant circular plate 3 in the set can be in a different state, thereby forming an adjustable exhaust gas flow channel inside the exhaust pipe body 1. The exhaust gas flow channel is complex, preventing the exhaust gas from being directly discharged and improving the sufficiency of the exhaust gas contacting and catalyzing the distributed catalytic lines 2. Advantage 3: By adjusting one high-temperature resistant circular plate 3 to a vertical position while the remaining high-temperature resistant circular plates 3 are in a horizontal position, and by using the impact force of the exhaust gas flow to flush the second channel 330 and honeycomb plate 5 on the vertical high-temperature resistant circular plate 3, dust and other impurities are quickly discharged, thus extending the effective service life of the high-temperature resistant circular plate 3 and its accessories.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An exhaust purification device for an engine, characterized in that: The system includes high-temperature resistant circular plates (3) and catalytic converters (2) distributed inside the exhaust pipe body (1). A group of high-temperature resistant circular plates (3) are rotated to different states. Guide wheels (6) are installed in the annular grooves (310) at the annular surface of each high-temperature resistant circular plate (3). A group of guide wheels (6) are inserted into the same catalytic converter (2). Part of the catalytic converter (2) is exposed at the connection between the first channel (320) and the second channel (330). Both ends of the catalytic converter (2) are fixed to the openings of two shaft tubes (340) in the same group by bolts (10). One end of the two shaft tubes (340) is symmetrically installed on the annular surface of the high-temperature resistant circular plate (3) in a coaxial manner.

2. The exhaust purification device for an engine according to claim 1, characterized in that: The catalytic wire (2) includes a core (210) and a catalytic layer (220). The catalytic layer (220) is electroplated on the surface of the core (210). The core (210) is not limited to steel. The catalytic layer (220) can also be divided into several segments according to the length of the catalytic wire (2). At least in every two consecutive segments, the catalytic layer (220) is made of different materials.

3. The exhaust purification device for an engine according to claim 1, characterized in that: The catalyst line (2) passes through the interior of two shaft tubes (340) in the same group at both ends, and most of the catalyst line (2) enters the first channel (320), which is also connected to the interior of the annular groove (310).

4. The exhaust purification device for an engine according to claim 3, characterized in that: The first channel (320) is distributed inside the high-temperature resistant circular plate (3), and the front and rear circular surfaces of the high-temperature resistant circular plate (3) are connected by a number of second channels (330).

5. The exhaust purification device for an engine according to claim 4, characterized in that: The annular surface of the high-temperature resistant circular plate (3) slides in contact with the inner wall of the exhaust pipe body (1), and a protective ring (4) is also provided in the annular groove (310) located at the annular surface of the high-temperature resistant circular plate (3).

6. The exhaust purification device for an engine according to claim 1, characterized in that: The shaft tube (340) is rotatably connected to the corresponding part of the exhaust pipe body (1) through a sealed bearing. A worm wheel (7) is installed at the other end of the shaft tube (340), and the worm wheel (7) is connected to the worm (8) in a transmission. The worm wheel (7) and the worm (8) are both set in the side frame (110), and the two side frames (110) are respectively set on both sides of the exhaust pipe body (1). A sealing cover (120) is installed at the frame opening of the side frame (110).

7. The exhaust purification device for an engine according to claim 6, characterized in that: Both ends of the worm (8) are rotatably mounted on the upper and lower walls of the side frame (110) via bearings, and a screw connector (9) is installed on the shaft at one end of the worm (8). The screw connector (9) is located in the countersunk hole (111), and the countersunk hole (111) is opened on one side of the side frame (110).

8. The exhaust purification device for an engine according to claim 1, characterized in that: The bolt (10) has a hole in the middle, and the corresponding part of the catalyst wire (2) is inserted into the hole. A seal is provided inside the hole.

9. The exhaust purification device for an engine according to claim 1, characterized in that: The high-temperature resistant circular plate (3) has honeycomb panels (5) installed on both its front and rear circular surfaces.

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