An engine arrangement

Abstract

The utility model relates to technical fields provide a kind of engine arrangement structure, including post-processing intake and exhaust tank, the air inlet of post-processing intake and exhaust tank is communicated with the air outlet of engine, the air inlet of air cleaner is communicated with the air outlet of engine, the post-processing intake and exhaust tank is supported by support II, the air cleaner is supported by support I, the support I and support II are arranged in the top of engine side by side, and installation support provides air filter fixed position to make overall structure more compact, effectively separates heat source and maintenance passage.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and specifically to an engine layout structure. Background Technology

[0002] Currently in the crawler crane industry, it is very difficult to arrange the intake and exhaust systems of the engine aftertreatment system in the narrow space inside the turntable of large-tonnage crawler cranes that meet the National IV emission standard for non-road use. This is especially true for crawler cranes with dual engines and dual aftertreatment systems, where the space arrangement is even more difficult. Furthermore, an overly compact and unreasonable arrangement can lead to problems such as inconvenient system maintenance, easy consumption of auxiliary materials, and difficulty in refueling.

[0003] Specifically, the engine aftertreatment system is a high-temperature component. When the engine is running for a long time or in regeneration mode, the high temperature around the aftertreatment system can easily cause the surrounding pipelines to age, affecting vehicle use. In addition, the high-temperature environment is not conducive to the maintenance of vulnerable parts of the vehicle and the addition of auxiliary materials. On the other hand, the existing compact layout of the aftertreatment system is integrated with the engine base, and the aftertreatment system as a whole is subject to greater engine vibration, which can easily cause damage and failure of the aftertreatment system, reducing its service life.

[0004] Currently, it is very difficult to arrange the intake and exhaust of the aftertreatment system for large-tonnage engines in the narrow space of the turntable of a crawler crane, especially for dual engines with dual aftertreatment systems. After the arrangement is completed, the heat source passage and maintenance passage pipes are messy. An unreasonable arrangement that is too compact will lead to inconvenience in system maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide an engine layout structure that can solve the technical problem that an unreasonable layout of the heat source passage and maintenance passage pipes, which is too messy and too compact, will cause inconvenience in system maintenance.

[0006] To achieve the above objectives, an engine layout structure includes an aftertreatment intake and exhaust tank. The intake port of the aftertreatment intake and exhaust tank is connected to the engine's exhaust port, and the intake port of an air filter is connected to the engine's exhaust port. The aftertreatment intake and exhaust tank is supported by bracket II, and the air filter is supported by bracket I. Bracket I and bracket II are arranged side by side on the top of the engine. This arrangement effectively utilizes the vertical space within the turntable frame, solving the problem of difficult dual-engine, dual-aftertreatment layout in confined spaces. The modular layout separates the heat source (aftertreatment intake and exhaust tank) from the maintenance access, reducing the impact of high temperatures on surrounding pipelines. It also facilitates access for maintenance personnel to the air filter and aftertreatment intake and exhaust tank for maintenance or adding auxiliary materials, improving maintainability and operational safety.

[0007] Further configured, the bracket I is an L-shaped plate, the bracket I includes a first plate I and a second plate I installed vertically, the first plate I has several mounting holes I, the second plate I has several triangular holes, and a pair of round holes I are provided at the bottom of the second plate I and on both sides of the second plate I. The second plate I is installed on the engine hood after bolts pass through the round holes I. The mounting holes I on the first plate I provide flexible connection points, which are convenient for adapting to support frames of different sizes; the triangular holes on the second plate I not only reduce the weight of the bracket, but also maintain the structural strength and are conducive to heat dissipation.

[0008] A further configuration involves fixing a support frame to the top of the first plate via mounting hole I, fixing an arc-shaped plate to the top of the support frame, and mounting an air filter on the top of the arc-shaped plate. The arc-shaped plate is designed to conform to the shape of the air filter, providing uniform support and reducing vibration and stress concentration.

[0009] Further configured, the bracket II is an L-shaped plate, comprising a vertically mounted first plate II and a second plate II. The first plate II has several mounting holes II, and the second plate II has several triangular holes. A pair of round holes II are located at the bottom of the second plate II and on both sides. The second plate II is mounted to the engine hood via bolts passing through the round holes II. The L-shaped plate design of bracket II is similar to that of bracket I, providing an independent support base for the aftertreatment intake and exhaust tanks. The mounting holes II allow for flexible installation of the support plate, the triangular holes reduce weight and enhance heat dissipation, and the round holes II ensure a secure connection between the bracket and the engine hood through bolt fixation.

[0010] A further configuration is provided in which a support plate is mounted on the top of the first plate II through mounting hole II, and a post-treatment intake and exhaust tank is fixedly mounted on the support plate. This arrangement reduces the temperature accumulation on the surface of the post-treatment intake and exhaust tank, prevents aging of surrounding pipelines, and enables the post-treatment intake and exhaust tank to maintain stable operation under high temperature conditions, thereby reducing thermal stress damage.

[0011] Furthermore, a gap is provided between bracket I and bracket II, which also provides a maintenance passage, facilitating the entry and exit of personnel and tools for pipe connections or auxiliary material refills, thus avoiding maintenance difficulties caused by a compact layout. In addition, the gap reduces vibration transmission, further protecting the post-treatment intake and exhaust tanks and air filter.

[0012] Further configured, the air filter includes a main filter and a pre-filter. This design extends the air filter replacement cycle, reduces maintenance costs, and is particularly suitable for tracked cranes operating in harsh environments, ensuring long-term stable operation of the engine.

[0013] A further configuration is that the pre-filter is positioned above the main filter. This arrangement optimizes the internal airflow of the air filter, reduces resistance, ensures smooth engine intake, and makes the pre-filter easier to clean or replace, reducing maintenance difficulty.

[0014] Furthermore, the air filter is connected to the engine via the air intake of the air pump. This direct connection simplifies the piping layout, reduces the risk of air leakage, ensures the stability of the air supply, and helps the engine maintain optimal performance under high loads.

[0015] Further configured, the outlet of the aftertreatment intake and exhaust tank is connected to the engine via an aftertreatment pipe. This connection method facilitates installation and disassembly, makes maintenance of the aftertreatment intake and exhaust tank more convenient, and ensures efficient discharge of treated exhaust gas, meeting environmental protection requirements and improving the overall reliability of the system.

[0016] The beneficial effects of one or more of the above technical solutions: By arranging the two key components, the aftertreatment intake and exhaust tanks and the air filter, side by side on the top of the engine and fixing them with independent brackets (Bracket I and Bracket II), a highly integrated and modular layout is achieved within the confined space of the turntable frame. The design incorporates fixed brackets and connecting supports. The aftertreatment is a single integrated structure, while the air filter is a separate structure. The two fixed brackets are used to connect and fix the aftertreatment and air filter, making the overall structure more compact. This effectively separates the heat source from the maintenance passage, facilitating maintenance and the addition of auxiliary parts. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the installation structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of bracket I of this utility model.

[0020] Figure 3 This is a structural schematic diagram of the bracket II of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0022] In the diagram, 1. Aftertreatment intake and exhaust tank; 2. Engine; 3. Air filter; 4. Bracket I; 41. Triangular hole; 42. First plate I; 43. Second plate I; 44. Mounting hole I; 45. Triangular hole; 46. Round hole I; 47. Support frame; 48. Arc plate; 49. Support plate; 5. Bracket II; 51. Triangular hole; 52. First plate II; 53. Second plate II; 54. Mounting hole II; 56. Round hole II; 57. Support plate; 6. Engine hood; 8. Main filter; 9. Pre-filter; 10. Aftertreatment pipe; 11. Air pump intake port. Detailed Implementation

[0023] The specific implementation method of this embodiment will now be described with reference to the accompanying drawings.

[0024] Reference Figure 1 An engine layout structure, referring to Figure 1 and Figure 4 An engine layout structure, in one embodiment, includes an aftertreatment intake and exhaust tank 1. The intake port of the aftertreatment intake and exhaust tank 1 is connected to the exhaust port of an engine 2, and the intake port of an air filter 3 is connected to the exhaust port of an engine 2. The aftertreatment intake and exhaust tank 1 is supported by a bracket I 4, and the air filter 3 is supported by a bracket II 5. Brackets I 4 and II 5 are arranged side by side on top of the engine 2. This arrangement effectively utilizes the vertical space within the turntable frame, solving the problem of difficult dual-engine, dual-aftertreatment layout in a confined space. The modular layout separates the heat source (aftertreatment intake and exhaust tank 1) from the maintenance access, reducing the impact of high temperatures on surrounding pipelines. It also facilitates access for maintenance personnel to the air filter 3 and the aftertreatment intake and exhaust tank 1 for maintenance or adding auxiliary materials, improving maintainability and operational safety.

[0025] Reference Figure 2 and Figure 4 The bracket I4 is an L-shaped plate, comprising a vertically mounted first plate I42 and a second plate I43. The first plate I42 has several mounting holes I44, and the second plate I43 has several triangular holes 41. A pair of round holes I46 are located at the bottom of the second plate I43 and on both sides of it. Bolts pass through the round holes I46 and the second plate I43 is then mounted to the engine hood 6. The mounting holes I44 on the first plate I42 provide flexible connection points, facilitating the adaptation of support frames 47 of different sizes. To ensure the installation stability of the air filter 3 at the top of the support frame 47, a support plate 49 is provided on one side of the bracket I4. The support plate 49 and the bracket I4 together support the upper support frame 47. The triangular holes 41 on the second plate I43 not only reduce the weight of the bracket but also maintain structural strength and facilitate heat dissipation.

[0026] The support frame 47 is fixedly mounted on the top of the first plate I42 through the mounting hole I44. The arc-shaped plate 48 is fixedly mounted on the top of the support frame 47, and the air filter 3 is mounted on the top of the arc-shaped plate 48. The arc-shaped plate 48 is designed to fit the shape of the air filter 3, providing uniform support and reducing vibration and stress concentration.

[0027] Bracket II5 is an L-shaped plate, comprising a vertically mounted first plate II52 and a second plate II53. The first plate II52 has several mounting holes II54, and the second plate II53 has several triangular holes 51. A pair of round holes II56 are located at the bottom and on both sides of the second plate II53. Bolts pass through the round holes II56 and the second plate II53 is then installed onto the engine hood 6. The L-shaped plate design of bracket II5 is similar to that of bracket I4, providing an independent support base for the aftertreatment intake and exhaust tank 1. The mounting holes II54 allow for flexible installation of the support plate 57. To ensure the installation stability of the aftertreatment intake and exhaust tank 1 on top of the support plate 57, a support plate 49 (with...) is provided on one side of bracket II5. Figure 2 Similar to the support plate 49 on the side of bracket II 5 (not visible), support plate 49 and bracket II 54 simultaneously support the upper support plate 57. Triangular hole 51 reduces weight and enhances heat dissipation, and round hole II 56 is fixed with bolts to ensure a firm connection between the bracket and the engine cover 6.

[0028] The support plate 57 is mounted on the top of the first plate II 52 through the mounting hole II 54, and the post-treatment intake and exhaust tank 1 is fixedly mounted on the support plate 57. This arrangement reduces the temperature accumulation on the surface of the post-treatment intake and exhaust tank 1, prevents the aging of surrounding pipelines, and enables the post-treatment intake and exhaust tank 1 to maintain stable operation under high temperature conditions, thereby reducing thermal stress damage.

[0029] A gap is provided between bracket I4 and bracket II5. This gap also provides a maintenance passage, facilitating personnel and tool access for pipe connections or auxiliary material refills, avoiding maintenance difficulties caused by a compact layout. Furthermore, the gap reduces vibration transmission, further protecting the post-treatment intake and exhaust tank 1 and the air filter 3.

[0030] The air filter 3 includes a main filter 8 and a pre-filter 9. This design extends the replacement cycle of the air filter 3, reduces maintenance costs, and is especially suitable for tracked cranes operating in harsh environments, ensuring the long-term stable operation of the engine 2.

[0031] The pre-filter 9 is positioned above the main filter 8. This arrangement optimizes the internal airflow of the air filter 3, reduces resistance, ensures smooth air intake for the engine 2, and makes the pre-filter 9 easier to clean or replace, reducing maintenance difficulty.

[0032] The air filter 3 is connected to the engine 2 via the air intake port 11 of the air pump. This direct connection simplifies the piping layout, reduces the risk of air leakage, ensures the stability of the air supply, and helps the engine 2 maintain optimal performance under high loads.

[0033] The exhaust port of the aftertreatment intake and exhaust tank 1 is connected to the engine 2 via the aftertreatment connector 10. This connection method facilitates installation and disassembly, making the maintenance of the aftertreatment intake and exhaust tank 1 more convenient, while ensuring efficient discharge of treated exhaust gas, meeting environmental protection requirements, and improving the overall reliability of the system.

[0034] Although the embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that no creative effort is required based on the technical solutions of the present invention.

Claims

1. An engine arrangement structure, characterized in that, It includes an aftertreatment intake and exhaust tank, the intake of which is connected to the exhaust port of the engine, and the intake of the air filter is connected to the exhaust port of the engine. The aftertreatment intake and exhaust tank is supported by bracket II, and the air filter is supported by bracket I. Bracket I and bracket II are arranged side by side on the top of the engine.

2. The engine arrangement structure according to claim 1, characterized in that, The bracket I is an L-shaped plate. The bracket I includes a first plate I and a second plate I that are installed vertically. The first plate I has several mounting holes I, and the second plate I has several triangular holes. A pair of round holes I are opened at the bottom of the second plate I and on both sides of the second plate I. The second plate I is installed on the engine hood after passing through the round holes I with bolts.

3. The engine arrangement structure according to claim 2, characterized in that, A support frame is fixedly installed on the top of the first plate through mounting hole I. An arc-shaped plate is fixedly installed on the top of the support frame, and an air filter is installed on the top of the arc-shaped plate.

4. The engine arrangement structure according to claim 1, characterized in that, The bracket II is an L-shaped plate. The bracket II includes a first plate II and a second plate II that are installed vertically. The first plate II has several mounting holes II. The second plate II has several triangular holes. A pair of round holes II are opened at the bottom of the second plate II and on both sides of the second plate II. The second plate II is installed on the engine hood after passing through the round holes II with bolts.

5. An engine arrangement structure according to claim 4, characterized in that, A support plate is mounted on the top of the first plate II through mounting hole II, and a post-treatment intake and exhaust tank is fixedly mounted on the support plate.

6. The engine arrangement structure according to claim 1, characterized in that, A gap is provided between bracket I and bracket II.

7. The engine arrangement structure according to claim 1, characterized in that, The air filter includes a main filter and a pre-filter.

8. An engine arrangement structure according to claim 7, characterized in that, The pre-filter is located above the main filter.

9. An engine arrangement structure according to claim 1, characterized in that, The air filter is connected to the engine via the air intake port of the air pump.

10. An engine arrangement structure according to claim 1, characterized in that, The exhaust port of the aftertreatment intake and exhaust tank is connected to the engine via an aftertreatment pipe.

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