Efficiency improving structure of air intake passage of methanol engine

Abstract

This application relates to the technical field of engine intake ducts, and in particular to a methanol engine intake duct efficiency improvement structure, including an intake pipe with a bent pipe fixedly installed on the left side. This invention utilizes components such as a tapered pipe, a connecting ring three, and a guide block. The tapered pipe can initially streamline and accelerate the airflow, reducing airflow diffusion loss. The guide block on the connecting ring three and the guide groove one on its outer wall can guide the airflow to a uniform distribution, avoiding local airflow congestion. The arc-shaped guide block on the inner wall of the connecting pipe two and the guide groove two on its outer wall optimize the airflow direction and reduce the flow resistance of the airflow in the pipe. The airfoil guide vane one and airfoil guide vane two fixed on the inner wall of the bent pipe can effectively reduce the vortex generated at the bend of the airflow, ensuring a smooth airflow transition. The above structure, in combination, significantly reduces the degree of airflow turbulence and flow resistance in the intake duct, increases the gas throughput per unit time, and ensures the engine's intake requirements.

Description

Technical Field

[0001] This application relates to the technical field of engine intake manifolds, and in particular to an efficiency improvement structure for methanol engine intake manifolds. Background Technology

[0002] The methanol engine intake manifold is a specialized channel structure that guides air or a methanol-air mixture into the engine cylinder. It enables the quantitative delivery of the mixture, precisely supplying the methanol fuel and air required for combustion in the cylinder, optimizing airflow characteristics, improving the atomization effect of the mixture, and enhancing combustion efficiency and engine power output.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: the existing technology lacks an effective airflow guidance and sorting structure inside the air intake, which leads to turbulence and eddies in the airflow process, resulting in high intake resistance and low gas passage efficiency, thereby affecting the engine's intake volume and combustion completeness. Utility Model Content

[0004] In order to improve the efficiency of gas passage in the intake manifold, this application provides a structure for improving the efficiency of the intake manifold of a methanol engine.

[0005] This application provides a methanol engine intake duct efficiency improvement structure, which adopts the following technical solution: including an intake pipe, a bent pipe fixedly installed on the left side of the intake pipe, a connecting ring one fixedly connected to the front of the bent pipe, a connecting ring two provided on the front of the connecting ring one, and a connecting pipe one fixedly connected to the front of the connecting ring two. A tapered tube is fixedly connected to the inner wall of the intake pipe. A connecting ring three is fixedly connected to the left side of the tapered tube. A guide block is fixedly connected to the inner wall of the connecting ring three. A guide groove one is opened on the outer wall of the guide block. A connecting pipe two is fixedly connected to the left side of the connecting ring three. A fixing ring is fixedly connected to the left side of the connecting pipe two. The outer wall of the fixing ring is fixedly connected to the inner wall of the intake pipe.

[0006] Optionally, an arc-shaped guide block is fixedly connected to the inner wall of the second connecting pipe, and a guide groove is formed on the outer wall of the arc-shaped guide block.

[0007] Optionally, the arc-shaped guide block is adapted to the guide block, and the number of arc-shaped guide blocks is several, which are arranged in a ring array.

[0008] Optionally, an airfoil guide vane one is fixedly connected to the inner wall of the bend, and an airfoil guide vane two is fixedly connected to the side of the inner wall of the bend away from the airfoil guide vane one.

[0009] Optionally, the outer wall of the second connecting ring contacts a collar, and the inner wall of the collar contacts the outer wall of the first connecting ring.

[0010] Optionally, a connecting plate one is fixedly connected to the inner wall of the collar, and a connecting plate two is in contact with the bottom of the connecting plate one, with the bottom of the connecting plate two fixedly connected to the inner wall of the collar.

[0011] Optionally, a threaded hole is provided on the top of the connecting plate, and a screw is threaded onto the inner wall of the threaded hole.

[0012] Optionally, a sealing groove is provided on the back of the second connecting ring, the inner wall of the sealing groove contacts a shaped sealing ring, the inner wall of the shaped sealing ring contacts a sealing ring, the front of the sealing ring contacts the back of the second connecting ring, the back of the sealing ring contacts the front of the first connecting ring, and the front of the first connecting ring contacts the back of the shaped sealing ring.

[0013] In summary, this application includes the following beneficial technical effects: 1. This utility model incorporates components such as a tapered tube, a connecting ring three, and a guide block. The tapered tube can initially organize and accelerate the airflow, reducing airflow diffusion loss. The guide block on the connecting ring three and the guide groove one on its outer wall can guide the airflow to be evenly distributed, avoiding local airflow congestion. The arc-shaped guide block on the inner wall of the connecting tube two and the guide groove two on its outer wall optimize the airflow direction and reduce the flow resistance of the airflow in the tube. The airfoil guide vane one and airfoil guide vane two fixed on the inner wall of the bend can effectively reduce the vortex generated by the airflow at the bend, ensuring a smooth airflow transition. The above structure significantly reduces the degree of airflow turbulence and flow resistance in the intake duct, increases the gas throughput per unit time, and ensures the engine's intake air requirements.

[0014] 2. This utility model incorporates components such as a sealing groove, a shaped sealing ring, and a sealing ring. The shaped sealing ring is housed within the sealing groove on the back of the connecting ring two. The inner wall of the shaped sealing ring contacts the sealing ring, and the front of the sealing ring is in contact with the back of the connecting ring two, while the back of the sealing ring is in contact with the front of the connecting ring one. Simultaneously, the outer walls of the connecting ring one and the connecting ring two are wrapped by a collar, further reinforcing the connection and aiding in sealing. The combination of the shaped sealing ring and the sealing ring fills the gap between the connecting ring one and the connecting ring two, while the collar externally constrains the connection. With this dual protection, the path of gas leakage from the connection can be effectively blocked, ensuring stable gas pressure in the intake duct and preventing a decrease in gas flow efficiency due to leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of connecting pipe two in the embodiments of this application; Figure 3 This is a schematic diagram of the arc-shaped guide block in an embodiment of this application; Figure 4This is a schematic diagram of the collar structure in an embodiment of this application; Figure 5 This is a schematic diagram of the irregular sealing ring in the embodiment of this application.

[0016] Reference numerals in the attached diagram: 1. Intake pipe; 11. Bend; 111. Connecting ring one; 12. Connecting pipe one; 121. Connecting ring two; 2. Converging pipe; 21. Connecting pipe two; 211. Fixing ring; 22. Connecting ring three; 221. Guide block; 222. Guide groove one; 23. Arc-shaped guide block; 231. Guide groove two; 24. Airfoil guide vane one; 25. Airfoil guide vane two; 3. Collar; 31. Connecting plate one; 311. Connecting plate two; 32. Screw; 33. Sealing groove; 34. Irregular sealing ring; 35. Sealing ring. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1-5 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0018] This application discloses a structure for improving the efficiency of the intake manifold of a methanol engine. For example... Figure 1 , Figure 2 , Figure 3 As shown, it includes an intake pipe 1, a bend 11 fixedly installed on the left side of the intake pipe 1, a connecting ring 111 fixedly connected to the front of the bend 11, a connecting ring 121 provided on the front of the connecting ring 111, and a connecting pipe 12 fixedly connected to the front of the connecting ring 121.

[0019] In this embodiment, a tapered tube 2 is fixedly connected to the inner wall of the intake pipe 1. A connecting ring 22 is fixedly connected to the left side of the tapered tube 2. A guide block 221 is fixedly connected to the inner wall of the connecting ring 22. A guide groove 222 is provided on the outer wall of the guide block 221. The arrangement of the guide block 221 and the guide groove 222 can improve the gas passage rate. A connecting pipe 21 is fixedly connected to the left side of the connecting ring 22. A fixing ring 211 is fixedly connected to the left side of the connecting pipe 21. The outer wall of the fixing ring 211 is fixedly connected to the inner wall of the intake pipe 1. The fixing ring 211 and the inner wall of the intake pipe are in a sealed connection state.

[0020] Please see Figure 4 As shown, the outer wall of connecting ring 2 121 is in contact with collar 3. Collar 3 can make the connection between the irregular sealing ring 34 and connecting ring 111 and connecting ring 2 121 tighter. The inner wall of collar 3 is in contact with the outer wall of connecting ring 111.

[0021] Please see Figure 3 As shown, an arc-shaped guide block 23 is fixedly connected to the inner wall of the connecting pipe 21. The arc shape of the arc-shaped guide block 23 can accelerate the passage of gas. A guide groove 231 is opened on the outer wall of the arc-shaped guide block 23.

[0022] Please see Figure 4 As shown, a connecting plate 31 is fixedly connected to the inner wall of the collar 3, and a connecting plate 311 is in contact with the bottom of the connecting plate 31. The bottom of the connecting plate 311 is fixedly connected to the inner wall of the collar 3.

[0023] Please see Figure 3 As shown, the arc-shaped guide block 23 is adapted to the guide block 221, and there are several arc-shaped guide blocks 23 arranged in a ring array.

[0024] Please see Figure 4 , Figure 5 As shown, the top of the connecting plate 1 31 has a threaded hole. Both the connecting plate 1 31 and the connecting plate 2 311 have threaded holes and are threadedly connected to the screw 32. The screw 32 is threadedly connected to the inner wall of the threaded hole. The back of the connecting ring 2 121 has a sealing groove 33. The inner wall of the sealing groove 33 contacts a shaped sealing ring 34. The outermost part of the shaped sealing ring 34 is trapezoidal, so that it can cover the gap created by the connecting ring 1 111 and the connecting ring 2 121. The middle part is a raised semi-circle, which can form a better sealing combination with the connecting ring 1 111 and the connecting ring 2 121. The inner wall of the shaped sealing ring 34 contacts a sealing ring 35. The front of the sealing ring 35 contacts the back of the connecting ring 2 121, the back of the sealing ring 35 contacts the front of the connecting ring 1 111, and the front of the connecting ring 1 111 contacts the back of the shaped sealing ring 34.

[0025] Please see Figure 3 As shown, an airfoil guide vane 24 is fixedly connected to the inner wall of the bend 11, and an airfoil guide vane 25 is fixedly connected to the side of the inner wall of the bend 11 away from the airfoil guide vane 24.

[0026] The implementation principle of the methanol engine intake duct efficiency improvement structure in this application embodiment is as follows: Gas first enters from the intake pipe 1, and then flows through the converging pipe 2 fixedly connected to the inner wall of the intake pipe 1. The converging pipe 2 initially organizes the airflow through its own structure, which can reduce airflow diffusion loss and increase airflow velocity, laying the foundation for subsequent stable airflow. After passing through the converging pipe 2, the airflow flows to the connecting ring 22 fixedly connected to the left side of the converging pipe 2. A guide block 221 is fixedly connected to the inner wall of the connecting ring 22, and the outer wall of the guide block 221 has a guide opening. In channel 222, the airflow is evenly distributed under the guidance of the first guide channel 222, effectively avoiding local airflow congestion and further optimizing the airflow state. The optimized airflow enters the second connecting pipe 21 fixedly connected to the left side of the third connecting ring 22. An arc-shaped guide block 23 is fixedly connected to the inner wall of the second connecting pipe 21. The outer wall of the arc-shaped guide block 23 has a guide channel 231. The arc-shaped guide blocks 23 and the guide blocks 221 are matched, and there are several of them arranged in a ring array. The second guide channel 231 can further accurately determine the direction of the airflow. Adjustments are made to ensure a continuous and stable airflow. After passing through connecting pipe 21, the airflow enters bend 11. Airfoil guide vane 1 24 and airfoil guide vane 25 are fixedly connected to the inner wall of bend 11. These two vanes are located on opposite sides of the inner wall of bend 11, guiding the airflow entering bend 11 and reducing eddies and turbulence caused by changes in flow direction at the bend 11's turning point, allowing the airflow to pass smoothly through bend 11. Connecting ring 111 is fixedly connected to the front of bend 11, cooperating with connecting ring 2 121, and the outer wall of connecting ring 2 121 contacts a sleeve. The inner wall of ring 3 and collar 3 is in contact with the outer wall of connecting ring 111. At the same time, a sealing groove 33 is provided on the back of connecting ring 2 121. The inner wall of sealing groove 33 is in contact with a shaped sealing ring 34, and the inner wall of shaped sealing ring 34 is in contact with a sealing ring 35. The inner wall of collar 3 is also fixedly connected to connecting plate 1 31. The bottom of connecting plate 1 31 is in contact with connecting plate 2 311 and both are connected to screw 32, forming a reliable seal to prevent airflow leakage at each connection point and ensure that all airflow flows along the preset path, ultimately achieving a stable improvement in the efficiency of air intake gas passage.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A structure for improving the efficiency of an intake passage of a methanol engine, comprising an intake pipe (1), characterized in that: A bend (11) is fixedly installed on the left side of the air intake pipe (1). A connecting ring one (111) is fixedly connected to the front of the bend (11). A connecting ring two (121) is provided on the front of the connecting ring one (111). A connecting pipe one (12) is fixedly connected to the front of the connecting ring two (121). The inner wall of the intake pipe (1) is fixedly connected to a tapered pipe (2), and the left side of the tapered pipe (2) is fixedly connected to a connecting ring three (22). The inner wall of the connecting ring three (22) is fixedly connected to a guide block (221), and the outer wall of the guide block (221) is provided with a guide groove one (222). The left side of the connecting ring three (22) is fixedly connected to a connecting pipe two (21), and the left side of the connecting pipe two (21) is fixedly connected to a fixing ring (211). The outer wall of the fixing ring (211) is fixedly connected to the inner wall of the intake pipe (1).

2. The intake passage efficiency improving structure for a methanol engine according to claim 1, characterized by: The inner wall of the connecting pipe (21) is fixedly connected to an arc-shaped guide block (23), and the outer wall of the arc-shaped guide block (23) is provided with a guide groove (231).

3. The methanol engine intake duct efficiency improvement structure according to claim 2, characterized in that: The arc-shaped guide block (23) is adapted to the guide block (221), and there are several arc-shaped guide blocks (23), which are arranged in a ring array.

4. The methanol engine intake duct efficiency improvement structure according to claim 1, characterized in that: An airfoil guide vane one (24) is fixedly connected to the inner wall of the bend (11), and an airfoil guide vane two (25) is fixedly connected to the side of the inner wall of the bend (11) away from the airfoil guide vane one (24).

5. The methanol engine intake duct efficiency improvement structure according to claim 1, characterized in that: The outer wall of the second connecting ring (121) is in contact with a collar (3), and the inner wall of the collar (3) is in contact with the outer wall of the first connecting ring (111).

6. The methanol engine intake duct efficiency improvement structure according to claim 5, characterized in that: The inner wall of the collar (3) is fixedly connected to a connecting plate one (31), and the bottom of the connecting plate one (31) is in contact with a connecting plate two (311). The bottom of the connecting plate two (311) is fixedly connected to the inner wall of the collar (3).

7. The methanol engine intake duct efficiency improvement structure according to claim 6, characterized in that: The top of the connecting plate (31) has a threaded hole, and a screw (32) is threadedly connected to the inner wall of the threaded hole.

8. The methanol engine intake duct efficiency improvement structure according to claim 1, characterized in that: The back of the second connecting ring (121) is provided with a sealing groove (33), the inner wall of the sealing groove (33) is in contact with a shaped sealing ring (34), the inner wall of the shaped sealing ring (34) is in contact with a sealing ring (35), the front of the sealing ring (35) is in contact with the back of the second connecting ring (121), the back of the sealing ring (35) is in contact with the front of the first connecting ring (111), and the front of the first connecting ring (111) is in contact with the back of the shaped sealing ring (34).

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