Structure for improving uniformity of coolant

Abstract

The utility model relates to a structure of improving cooling liquid uniformity belongs to the engine cooling system field, it includes the oil cooler seat of being located gear room upper end, the total water pipe of being located oil cooler seat one side and the machine body left inlet pipe and machine body right inlet pipe of connecting total water pipe, the cooling liquid passage position of total water pipe is higher than the water channel of machine body, and the end portion of machine body left inlet pipe and machine body right inlet pipe away from total water pipe is connected to the left and right sides of machine body downward. The utility model is favorable to reduce the nonuniformity of each cylinder cooling liquid to improve the heat exchange of cylinder body, cylinder cover.

Description

Technical Field

[0001] This utility model belongs to the field of engine cooling systems, and in particular relates to a structure for improving the uniformity of coolant. Background Technology

[0002] With the expanding application of V-type diesel engines, their cooling systems face numerous challenges. In traditional designs, coolant from the water pump outlet is primarily distributed to the water jackets on both sides of the engine block and the cylinder head water jacket via the gear chamber water passages. However, since the gear chamber is typically located at the front of the engine, the coolant must first flow through the front water passages of the engine block and then gradually flow to the rear. This results in a gradual decrease in flow rate to each cylinder due to differences in flow resistance, leading to poor coolant uniformity. After cooling the cylinder liners, the coolant flows into the cylinder head water jacket, further exacerbating the non-uniformity of coolant between cylinders, and the greater the number of cylinders, the greater the difference. In the pursuit of platformization and universality in engine design, for multi-cylinder engines such as 8V, 12V, 16V, and 20V, the more cylinders there are, the worse the coolant uniformity becomes, affecting the cooling effect of the cylinder block and cylinder head. While existing technologies can improve coolant uniformity by adjusting the size of the water inlet holes on the cylinder head gasket, this method results in non-interchangeability of cylinder head gaskets or cylinder heads for each cylinder, increasing design and manufacturing costs and limiting the engine's versatility and flexibility. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings by designing a structure that improves the uniformity of coolant and reduces the non-uniformity of coolant in each cylinder, thereby improving the heat exchange of the cylinder block and cylinder head.

[0004] To achieve the above objectives, the present invention provides a structure for improving coolant uniformity, comprising an oil cooler seat located at the upper end of the gear chamber, a main water pipe located on one side of the oil cooler seat, and a left and right water inlet pipe of the engine body connected to the main water pipe. The coolant passage of the main water pipe is positioned higher than the water channel of the engine body, and the ends of the left and right water inlet pipes of the engine body that are away from the main water pipe are connected downward to the left and right sides of the engine body.

[0005] Preferably, the ends of the left and right water inlet pipes of the machine body that connect to the main water pipe are located at a higher position than the ends that connect to the machine body.

[0006] Preferably, the oil cooler housing integrates an oil passage, a low-temperature cooling circulation passage, and a high-temperature cooling circulation passage, and is arranged at the upper end of the gear chamber, which is tightly connected to the front end of the machine body.

[0007] Preferably, the water pump outlet and the engine cooler outlet are connected to the engine oil cooler.

[0008] Preferably, the coolant flows from the water pump outlet into the oil cooler, then through the cooler outlet into the oil cooler housing, and finally flows out through the cooler outlet.

[0009] Preferably, the outlet of the machine-cooled water channel is connected to the main water pipe, so that the coolant can flow into the main water pipe for further distribution.

[0010] Preferably, the main inlet is the primary entrance for coolant into the cooling system and is connected to the outlet of the machine-cooled water channel.

[0011] Preferably, the length and diameter of the left and right water inlet pipes can be adjusted according to the increase in the number of engine cylinders.

[0012] Preferably, the left and right water outlets are located on the left and right sides of the machine body, respectively, and are the outlets from which the coolant flows out of the main water pipe and into the interior of the machine body.

[0013] Preferably, the left water inlet pipe and the right water inlet pipe of the machine body are respectively connected to the main water pipe and the left water outlet and the right water outlet, so that the coolant flows into the machine body from the main water pipe.

[0014] In summary, this utility model has the following beneficial technical effects: This invention significantly reduces the risk of engine block or cylinder head gasket deformation by optimizing the coolant flow channel design. In traditional cooling systems, uneven coolant distribution leads to significant differences in thermal stress across cylinders, easily causing engine block or cylinder head gasket deformation, which in turn affects the overall engine performance and service life. This invention, however, redesigns the coolant flow channel to ensure uniform coolant coverage for V-type engines with varying numbers of cylinders, effectively reducing the difference in thermal stress between cylinders. This, in turn, lowers the risk of engine block or cylinder head gasket deformation and improves engine reliability and durability.

[0015] This invention significantly improves the uniformity of coolant flow channels across cylinders. In V-type diesel engines, coolant uniformity is crucial for engine performance and stability. By adjusting the inlet position and optimizing the layout of the main water pipe, left inlet pipe, and right inlet pipe, this invention allows the coolant to be distributed more evenly to each cylinder under gravity. Even in engines with a large number of cylinders, it ensures that the coolant flow rate in each cylinder remains stable within the design range, effectively solving the problem of temperature differences between cylinders caused by uneven coolant distribution, and improving the overall performance and stability of the engine.

[0016] This invention significantly improves the heat transfer coefficient of the engine block and cylinder head. The uniform distribution of coolant allows for more effective heat dissipation from the engine block and cylinder head. In traditional designs, uneven coolant distribution leads to poor heat dissipation in some cylinders, resulting in excessively high temperatures and impacting engine thermal efficiency and lifespan. This invention, by optimizing the coolant flow path, ensures the coolant flows evenly through each cylinder, enhancing cooling performance. Simultaneously, the heat exchange between the coolant and the engine block and cylinder head is more thorough, increasing the heat transfer coefficient and allowing the engine to operate at more suitable temperatures, thus improving engine thermal efficiency and overall performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the oil cooler seat in a structure for improving coolant uniformity according to this utility model; Figure 2 This is a schematic diagram of the main water pipe in a structure for improving coolant uniformity according to this utility model; Figure 3 This is a schematic diagram of the left water inlet pipe in a structure for improving coolant uniformity according to this utility model; Figure 4 This is a schematic diagram of the right water inlet pipe in a structure for improving coolant uniformity according to this utility model; Figure 5 This is a schematic diagram of the overall structure of a structure for improving the uniformity of coolant according to the present invention.

[0018] Attached reference numerals: 1. Oil cooler housing; 11. Water pump outlet; 12. Engine cooler outlet; 13. Rear cooler water channel outlet; 14. Front oil passage; 15. Rear oil passage; 16. Low-temperature coolant circulation channel; 2. Main water pipe; 21. Left outlet; 22. Right outlet; 23. Main inlet; 3. Left inlet pipe; 31. Left inlet pipe inlet; 32. Left inlet pipe outlet; 4. Right inlet pipe; 41. Right inlet pipe inlet; 42. Right inlet pipe outlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model discloses a structure for improving coolant uniformity. By redesigning the coolant flow channel, the coolant flows out from the gear chamber channel and, through an optimized pipe layout, enters from the top of the engine block. This significantly improves the uniformity of coolant distribution in a V-type engine and effectively solves the problem of cylinder head gasket and cylinder head compatibility. The structure features an integrated oil cooler housing 1, a main water pipe 2, a left inlet pipe 3, and a right inlet pipe 4. Through a rational component layout and functional cooperation, efficient coolant distribution is achieved.

[0021] The integrated oil cooler housing 1 for mounting the oil cooler adopts a one-piece design, integrating oil passages, low-temperature cooling circulation passages, and high-temperature cooling circulation passages. The oil cooler housing 1 is positioned above the gear chamber, which is tightly connected to the front end of the engine block. The design of the oil cooler housing 1 adjusts the position of the inlet to the engine block, allowing the coolant to evenly cover V-type engines with different numbers of cylinders, thus solving the problem of uneven coolant distribution.

[0022] The coolant pumped by the water pump enters the oil cooler through the water pump outlet 11 of the oil cooler housing 1 to cool the engine oil. After completing its cooling task in the oil cooler, the coolant enters the oil cooler housing 1 through the oil cooler outlet 12 and flows out of the oil cooler housing 1 through the oil cooler outlet 13. The oil cooler outlet 13 is connected to the main water pipe 2, allowing the coolant to flow smoothly into the main water pipe 2 for further distribution.

[0023] After engine cooling, the coolant outlet 13 is connected to the main water pipe 2. The coolant passage of the main water pipe 2 is positioned higher than the engine block's water channels. This design allows the coolant to be distributed more evenly to each cylinder under gravity. The main water pipe 2 further optimizes the uniformity of coolant distribution to each cylinder by connecting the left inlet pipe 3 and the right inlet pipe 4. When the number of cylinders in a V-type engine increases, the length and diameter of the left inlet pipe 3 and the right inlet pipe 4 can be adjusted to ensure that the coolant flow rate to each cylinder is controlled within the design range, thereby meeting the cooling requirements of engines with different numbers of cylinders.

[0024] The pre-cooling oil passage 14 and the post-cooling oil passage 15 are channels that connect to the inside of the oil cooler to allow oil to flow. The oil enters the oil cooler through the pre-cooling oil passage 14 and exchanges heat with the coolant inside the oil cooler. After completing the cooling process, the oil flows into the oil cooler seat 1 through the post-cooling oil passage 15.

[0025] The main water pipe 2, as the core component for coolant distribution, has its coolant passage higher than the engine block's water channels. This design facilitates gravity-based coolant distribution. The main water pipe 2, connected to the left inlet pipe 3 and the right inlet pipe 4, evenly distributes coolant to each cylinder of the engine. The length and diameter of the left inlet pipe 3 and the right inlet pipe 4 can be adjusted according to the increase in the number of engine cylinders to ensure that the coolant flow rate to each cylinder remains stable within the design range. The left outlet 21 and the right outlet 22, located on the left and right sides of the engine block respectively, are the outlets from which coolant flows from the main water pipe 2 into the engine block. The design of these two outlets ensures that the coolant can be evenly distributed to the cylinders on both sides, further improving the uniformity of coolant distribution. The main inlet 23 is the main inlet for coolant to enter the cooling system. It is connected to the outlet 13 of the engine coolant channel, ensuring that coolant can smoothly enter the cooling system. The design of the main inlet 23 guarantees the flow rate and pressure of the coolant, providing stable support for the entire cooling cycle.

[0026] The left and right water inlet pipes 3 and 4 connect the main water pipe 2 to the left and right outlets 21 and 22, respectively, serving as bridges for coolant to flow from the main water pipe 2 into the engine body. The length and diameter of the left and right water inlet pipes 3 and 4 can be adjusted according to the number of engine cylinders to meet different design requirements. The left water inlet pipe inlet 31 and outlet 32 ​​are the two ends of the left water inlet pipe 3, connecting to the left outlet 21 and the top of the engine body, respectively. The design of the left water inlet pipe inlet 31 ensures that coolant flows smoothly from the main water pipe 2 into the left water inlet pipe 3, while the left water inlet pipe outlet 32 ​​guides the coolant into the engine body. The right water inlet 41 and the right water inlet 42 are the two ends of the right water inlet 4, which are connected to the right water outlet 22 and the top of the machine body, respectively. The design of the right water inlet 41 ensures that the coolant can flow smoothly from the main water pipe 2 into the right water inlet 4, while the right water inlet 42 is responsible for guiding the coolant into the machine body.

[0027] This invention achieves uniform coolant distribution in a V-type engine through a carefully designed coolant flow channel and pipe layout, solving the problem of cylinder head gasket and cylinder head universality, and reducing the development cost and difficulty of diesel engines. By adjusting the length and diameter of the left inlet pipe 3 and the right inlet pipe 4, the cooling requirements of engines with different numbers of cylinders can be met, making this invention widely applicable and flexible.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A structure for improving the uniformity of coolant, characterized in that, It includes an oil cooler seat (1) located at the upper end of the gear chamber, a main water pipe (2) located on one side of the oil cooler seat (1), and a left water inlet pipe (3) and a right water inlet pipe (4) of the body connected to the main water pipe (2). The coolant passage of the main water pipe (2) is higher than the water channel of the body. The ends of the left water inlet pipe (3) and the right water inlet pipe (4) of the body that are away from the main water pipe (2) are connected downward to the left and right sides of the body.

2. The structure for improving coolant uniformity according to claim 1, characterized in that, The ends of the left water inlet pipe (3) and the right water inlet pipe (4) of the machine body that connect to the main water pipe (2) are located higher than the ends that connect to the machine body.

3. The structure for improving coolant uniformity according to claim 2, characterized in that, The oil cooler seat (1) integrates an oil channel, a low-temperature cooling circulation channel and a high-temperature cooling circulation channel, and is arranged at the upper end of the gear chamber, which is tightly connected to the front end of the machine body.

4. The structure for improving coolant uniformity according to claim 3, characterized in that, The water pump outlet (11) and the engine cooler outlet (12) are connected to the engine oil cooler.

5. The structure for improving coolant uniformity according to claim 4, characterized in that, The coolant flows into the oil cooler from the water pump outlet (11), then enters the oil cooler seat (1) through the cooler outlet (12), and flows out through the cooler outlet (13).

6. The structure for improving coolant uniformity according to claim 5, characterized in that, The outlet (13) of the machine-cooled water channel is connected to the main water pipe (2), so that the coolant can flow into the main water pipe (2) for further distribution.

7. The structure for improving coolant uniformity according to claim 6, characterized in that, The main inlet (23) is the main entrance for coolant to enter the cooling system and is connected to the outlet (13) of the machine-cooled water channel.

8. The structure for improving coolant uniformity according to claim 7, characterized in that, The length and diameter of the left water inlet pipe (3) and the right water inlet pipe (4) can be adjusted according to the increase in the number of engine cylinders.

9. The structure for improving coolant uniformity according to claim 7, characterized in that, The left outlet (21) and the right outlet (22) are located on the left and right sides of the machine body, respectively, and are the outlets from which the coolant flows out of the main water pipe (2) and into the interior of the machine body.

10. The structure for improving coolant uniformity according to claim 9, characterized in that, The left water inlet pipe (3) and the right water inlet pipe (4) of the machine body are respectively connected to the main water pipe (2) and the left water outlet (21) and the right water outlet (22) so that the coolant flows into the machine body from the main water pipe (2).

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