A multi-nozzle methanol injector assembly structure

Abstract

The present application relates to diesel methanol dual fuel engine system technical field, disclose a kind of multi-nozzle methanol injector assembly structure, including elbow pipe, elbow welding plate, welding side plate, upper elbow pipe, flange and rear welding plate, the elbow pipe, elbow welding plate, welding side plate, upper elbow pipe, flange and rear welding plate are welded into integral elbow pipe structure using iron plate assembly welding process, the elbow pipe structure is provided with injector assembly at right angle elbow portion;A kind of multi-nozzle methanol injector assembly structure provided by the present application solves the problems of welding difficulty, unreliable welding, unstable size, high production cost and low durable life in the prior art.

Description

Technical Field

[0001] This invention relates to the technical field of diesel-methanol dual-fuel engine systems, specifically to a multi-nozzle methanol injector assembly structure. Background Technology

[0002] The existing methanol injector assembly uses a die-casting process to integrally form the pipe body. After casting, the mounting holes are machined. This structural design results in high production costs. On the other hand, the traditional method of welding the pipe body is difficult to operate due to unreasonable design of the structure to be welded. It also has technical defects such as unreliable welding and unstable dimensions, which affect the durability, reliability and dimensional stability of the product. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-nozzle methanol injector assembly structure that solves the problems of difficult welding, unreliable welding, unstable dimensions, high production costs, and low durability in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A multi-nozzle methanol injector assembly structure includes a lower bend pipe, a lower bend welding plate, a welding side plate, an upper bend pipe, a flange, and a rear welding plate. The lower bend pipe, lower bend welding plate, welding side plate, upper bend pipe, flange, and rear welding plate are welded into an integral bend pipe structure using an iron plate splicing and welding process. The injector assembly is located at the right-angle bend of the bend pipe structure.

[0006] The lower bend is provided with an air outlet, the upper bend is provided with an air inlet, and the lower bend is provided with a first opening on the side facing the upper bend. The edge of the first opening includes a first welding edge and two second welding edges perpendicular to the first welding edge. The first welding edge is parallel to the plane where the air outlet is located, and the two second welding edges extend from both ends of the first welding edge to the end of the lower bend away from the air outlet.

[0007] The upper bend pipe has a second opening on the side facing the lower bend pipe. The edge of the second opening includes a third welding edge and two symmetrically arranged fourth welding edges. The third welding edge is parallel to the plane where the air inlet is located. The two fourth welding edges extend in an arc from both ends of the third welding edge toward the air outlet to the end of the upper bend pipe away from the air inlet.

[0008] The welded side plate includes a fifth welded edge, a sixth welded edge, and a seventh welded edge. The fifth welded edge is welded to the lower end of the upper bend pipe, and the sixth welded edge is welded to the corresponding second welded edge.

[0009] The downward-bent welding plate includes two symmetrically arranged side arc edges. An upper welding edge is connected between the upper ends of the two side arc edges, and a lower welding edge is connected between the lower ends of the two side arc edges. The upper welding edge is welded to the third welding edge, and the lower welding edge is welded to the first welding edge. The two side arc edges are welded to the fourth welding edge, the seventh welding edge, and the second welding edge from top to bottom in sequence.

[0010] The welded side plate and the lower bend are flush with the end away from the air outlet, and a flange is welded to that end. The flange is parallel to the air outlet, and a rear welded plate is welded to the lower end of the upper bend outside the flange.

[0011] This technical solution utilizes a unique splicing structure design consisting of a lower bend pipe, a lower bend welded plate, welded side plates, an upper bend pipe, a flange, and a rear welded plate. Through a steel plate assembly and welding process, it solves the problems of difficult welding, unreliable welding, air leakage, dimensional instability, high production costs, and short service life in existing technologies. This reduces production costs while ensuring product durability, reliability, and dimensional stability. Furthermore, the flange is parallel to the gas outlet, and its design provides a precise installation position for the methanol injection nozzle, ensuring that the direction of methanol injection aligns with the gas flow direction, guaranteeing complete atomization after injection.

[0012] Furthermore, the injector assembly includes an alcohol rail flange, an alcohol rail, an inlet oil cup, an alcohol nozzle, and an alcohol rail oil cup. The alcohol rail flange is bolted to the flange, the alcohol rail is mounted on the alcohol rail flange, the inlet oil cup is mounted on the flange, one end of the alcohol nozzle is connected to the inlet oil cup, and the other end of the alcohol nozzle is connected to the alcohol rail oil cup. The alcohol rail oil cup is connected to the alcohol rail. The design of the flange and the alcohol rail flange provides the correct insertion direction for the methanol nozzle wiring harness, ensuring convenient wiring harness installation. The alcohol nozzle is bolted between the flange and the alcohol rail flange, ensuring uniform and sufficient atomization of methanol after injection.

[0013] Furthermore, in order to achieve better atomization effect, the alcohol spray nozzle is a two-set three-nozzle design. At the same time, the two-set three-nozzle design solves the problem of alcohol track pressure fluctuation during injection, ensuring that sufficient and stable pressure methanol is supplied to the alcohol sprayer.

[0014] Furthermore, the methanol injection nozzle is perpendicular to the gas outlet. The nozzle is fixed to the flange via an inlet oil cup, ensuring it is precisely positioned to guarantee that the methanol injection direction aligns with the gas flow direction and that the injection is fully atomized.

[0015] Furthermore, the injector assembly is electrically connected to an external controller ECU to facilitate the injection of methanol according to specified requirements. Attached Figure Description

[0016] Figure 1 This is a side view of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0018] Figure 3 This is a top view of the structure of the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 5 This is an exploded view of the present invention;

[0021] In the diagram: 1. Lower bend pipe; 2. Lower bend welded plate; 3. Welded side plate; 4. Upper bend pipe; 5. Flange; 6. Rear welded plate; 7. Air outlet; 8. Air inlet; 9. First welded edge; 10. Second welded edge; 11. Third welded edge; 12. Fourth welded edge; 13. Fifth welded edge; 14. Sixth welded edge; 15. Seventh welded edge; 16. Side arc edge; 17. Upper welded edge; 18. Lower welded edge; 19. Alcohol rail flange; 20. Alcohol rail; 21. Inlet oil cup; 22. Alcohol spray nozzle; 23. Alcohol rail oil cup; 24. Bolt. Detailed Implementation

[0022] Example 1:

[0023] like Figures 1-5 As shown, this embodiment provides a multi-nozzle methanol injector assembly structure, including a lower bend 1, a lower bend welding plate 2, a welding side plate 3, an upper bend 4, a flange 5, and a rear welding plate 6. The lower bend 1, lower bend welding plate 2, welding side plate 3, upper bend 4, flange 5, and rear welding plate 6 are welded into an integral bend structure using an iron plate assembly welding process. The injector assembly is located at the right-angle bend of the bend structure.

[0024] The lower bend 1 is provided with an air outlet 7, and the upper bend 4 is provided with an air inlet 8. The lower bend 1 is provided with a first opening on the side facing the upper bend 4. The edge of the first opening includes a first welding edge 9 and two second welding edges 10 perpendicular to the first welding edge 9. The first welding edge 9 is parallel to the plane where the air outlet 7 is located, and the two second welding edges 10 extend from both ends of the first welding edge 9 to the end of the lower bend 1 away from the air outlet 7.

[0025] The upper bend 4 has a second opening on the side facing the lower bend 1. The edge of the second opening includes a third welding edge 11 and two symmetrically arranged fourth welding edges 12. The third welding edge 11 is parallel to the plane where the air inlet 8 is located. The two fourth welding edges 12 extend in an arc from both ends of the third welding edge 11 toward the air outlet 7 to the end of the upper bend 4 away from the air inlet 8.

[0026] The welding side plate 3 includes a fifth welding edge 13, a sixth welding edge 14 and a seventh welding edge 15. The fifth welding edge 13 is welded to the lower end of the upper bend 4, and the sixth welding edge 14 is welded to the corresponding second welding edge 10.

[0027] The downward-bent welding plate 2 includes two symmetrically arranged side arc-shaped edges 16. An upper welding edge 17 is connected between the upper ends of the two side arc-shaped edges 16, and a lower welding edge 18 is connected between the lower ends of the two side arc-shaped edges 16. The upper welding edge 17 is welded to the third welding edge 11, and the lower welding edge 18 is welded to the first welding edge 9. The two side arc-shaped edges 16 are welded to the fourth welding edge 12, the seventh welding edge 15, and the second welding edge 10 from top to bottom.

[0028] The side plate 3 and the lower bend 1 are flush with the end away from the air outlet 7 and a flange 5 is welded to that end. The flange 5 is parallel to the air outlet 7. The lower end of the upper bend 4 is located outside the flange 5 and a rear welding plate 6 is welded to it.

[0029] This technical solution utilizes a unique splicing structure design consisting of a lower bend (1), a lower bend welded plate (2), a welded side plate (3), an upper bend (4), a flange (5), and a rear welded plate (6). Through a steel plate assembly and welding process, it solves the problems of difficult welding, unreliable welding, air leakage, dimensional instability, high production costs, and low durability in existing technologies. This reduces production costs while ensuring product durability, reliability, and dimensional stability. Furthermore, the flange (5) is parallel to the outlet (7), and its design provides a precise installation position for the methanol nozzle (22), ensuring that the direction of the injected methanol aligns with the gas flow direction, guaranteeing complete atomization after injection.

[0030] Example 2:

[0031] This embodiment is an optimization based on the above embodiment 1.

[0032] The injector assembly includes a methanol rail flange 19, a methanol rail 20, an inlet oil cup 21, a methanol nozzle 22, and a methanol rail oil cup 23. The methanol rail flange 19 is mounted on flange 5 via bolts 24. The methanol rail 20 is mounted on the methanol rail flange 19. The inlet oil cup 21 is mounted on flange 5. One end of the methanol nozzle 22 is connected to the inlet oil cup 21, and the other end is connected to the methanol rail oil cup 23. The methanol rail oil cup 23 is connected to the methanol rail 20. The design of flange 5 and methanol rail flange 19 provides the correct insertion direction for the methanol nozzle wiring harness, ensuring convenient wiring harness installation. The methanol nozzle 22 is mounted between flange 5 and methanol rail flange 19 via bolts 24, ensuring uniform and sufficient atomization of the methanol after injection.

[0033] Example 3:

[0034] This embodiment is an optimization based on the above embodiment 2.

[0035] To achieve better atomization, the methanol nozzle 22 is a two-set three-nozzle design. At the same time, the two-set three-nozzle design solves the problem of pressure fluctuation in the methanol rail 20 during injection, ensuring that sufficient and stable pressure methanol is supplied to the methanol injector.

[0036] Example 4:

[0037] This embodiment is an optimization based on the above embodiment 2 or 3.

[0038] The methanol injection nozzle 22 is perpendicular to the gas outlet 7. The nozzle 22 is fixed to the flange 5 via the inlet oil cup 21, ensuring it is accurately positioned and that the methanol injection direction aligns with the gas flow direction, guaranteeing complete atomization after injection. The injector assembly is electrically connected to an external controller ECU for precise methanol injection according to specified requirements.

[0039] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-nozzle methanol injector assembly structure, characterized in that: It includes a lower bend, a lower bend welding plate, a welding side plate, an upper bend, a flange, and a rear welding plate. The lower bend, lower bend welding plate, welding side plate, upper bend, flange, and rear welding plate are welded into an integral bend structure using an iron plate assembly welding process. An injector assembly is provided at the right-angle bend of the bend structure. The lower bend has an air outlet, and the upper bend has an air inlet. The lower bend has a first opening on the side facing the upper bend. The edge of the first opening includes a first welded edge and two second welded edges perpendicular to the first welded edge. The first welded edge is parallel to the plane of the air outlet, and the two second welded edges extend from both ends of the first welded edge to the end of the lower bend away from the air outlet. The upper bend has a second opening on the side facing the lower bend. The edge of the second opening includes a third welded edge and two symmetrically arranged fourth welded edges. The third welded edge is parallel to the plane of the air inlet, and the two fourth welded edges extend in an arc from both ends of the third welded edge towards the air outlet to the end of the upper bend away from the air inlet. The welded side plate includes a fifth welded edge, a sixth welded edge, and a seventh welded edge. The fifth welded edge is welded to the lower end of the upper bend, and the sixth welded edge is welded to the corresponding second welded edge. The lower bend welding plate includes two symmetrically arranged side arc-shaped edges. An upper welding edge is connected between the upper ends of the two side arc-shaped edges, and a lower welding edge is connected between the lower ends of the two side arc-shaped edges. The upper welding edge is welded to the third welding edge, and the lower welding edge is welded to the first welding edge. The two side arc-shaped edges are welded to the fourth welding edge, the seventh welding edge, and the second welding edge from top to bottom in sequence. The welding side plate and the lower bend pipe are flush with the end away from the air outlet, and a flange is welded to this end. The flange is parallel to the air outlet, and a rear welding plate is welded to the lower end of the upper bend pipe outside the flange.

2. The multi-nozzle methanol injector assembly structure according to claim 1, characterized in that: The injector assembly includes an alcohol rail flange, an alcohol rail, an intake oil cup, an alcohol nozzle, and an alcohol rail oil cup. The alcohol rail flange is bolted to the flange, the alcohol rail is mounted on the alcohol rail flange, the intake oil cup is mounted on the flange, one end of the alcohol nozzle is connected to the intake oil cup, the other end of the alcohol nozzle is connected to the alcohol rail oil cup, and the alcohol rail oil cup is connected to the alcohol rail.

3. The multi-nozzle methanol injector assembly structure according to claim 2, characterized in that: The alcohol spray nozzle consists of two sets of three-nozzle alcohol spray nozzles.

4. The multi-nozzle methanol injector assembly structure according to claim 2, characterized in that: The alcohol spray nozzle is perpendicular to the air outlet.

5. The multi-nozzle methanol injector assembly structure according to claim 2, characterized in that: The injector assembly is electrically connected to an external controller ECU.

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