An oil pan for a high-power diesel engine

Abstract

The utility model discloses a kind of oil sump for high-power diesel engine, including shell and drain plug and oil scale sleeve tube being set on shell, the inside integration of the shell has cooling water channel, water inlet and water outlet being communicated with engine cooling system are provided on the cooling water channel;At least one baffle is provided in the shell, the inner cavity of the shell is divided into circuitous oil passage by the baffle, the baffle is made of aluminum alloy material.The utility model passes through the cooling water channel integrated in oil sump, utilizes engine coolant to directly cool oil, and heat dissipation efficiency is high, can effectively cope with the large amount of heat generated by high-power diesel engine, prevent oil high-temperature oxidation and viscosity drop;By integrating cooling system in the inside of oil sump, it does not occupy additional space, compact structure, it is convenient to arrange in engine compartment.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-horsepower diesel engine technology. Specifically, this utility model relates to an oil pan for a high-power diesel engine. Background Technology

[0002] The global trade recovery is driving the construction and upgrading of ships, including ocean-going freighters and large yachts, which require high-torque and high-stability diesel engines. For example, the Volvo D4 series marine diesel engine can output 669 Nm of torque at 1900 rpm, meeting the demand for rapid response. Luxury yachts mostly use inboard diesel engines. For example, superyachts over 100 feet are equipped with a dual-engine system, with each engine producing up to 2600 horsepower, and can achieve precise control with an electronic speed control system. Although modern outboard engines are mainly gasoline-powered, diesel generators are still widely used in hybrid power systems. High-performance, high-power diesel engines require precise temperature control of the engine oil to avoid lubrication failure.

[0003] Currently, low-power diesel engines typically use oil coolers to regulate lubricating oil temperature; however, for high-power diesel engines, the heat generated is enormous, and relying solely on oil coolers often fails to meet the heat dissipation requirements, making it impossible to ensure that the oil operates stably within the optimal temperature range for a long period of time. Utility Model Content

[0004] This invention provides an oil pan for a high-power diesel engine, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an oil pan for a high-power diesel engine, comprising a housing and an oil drain plug and an oil dipstick sleeve disposed on the housing, wherein the interior of the housing is integrated with a cooling water channel, and the cooling water channel is provided with an inlet and an outlet connected to the engine cooling system.

[0006] Preferably, the housing is provided with at least one partition, which divides the inner cavity of the housing into a meandering oil passage, and the partition is made of aluminum alloy.

[0007] Preferably, the housing includes a detachably connected upper housing and a lower housing, and the cooling water channel is disposed on the inner side of the lower housing.

[0008] Preferably, the lower shell is made of cast aluminum alloy, and the cooling water channel is a pipe or cavity that meanders around the inside of the shell.

[0009] Preferably, a cover plate is provided on one side of the housing.

[0010] The beneficial effects of adopting the above technical solutions are: 1. By integrating cooling channels within the oil pan, the engine coolant directly cools the engine oil, resulting in high heat dissipation efficiency. This effectively addresses the large amount of heat generated by high-power diesel engines, preventing high-temperature oxidation and viscosity reduction in the engine oil.

[0011] Second, when the engine is cold-started, the warm coolant can flow through the cooling water passages to heat the engine oil, allowing it to quickly reach its optimal operating temperature and reducing engine wear when the engine is cold.

[0012] Third, by integrating the cooling system inside the oil pan, it does not occupy extra space, has a compact structure, and is easy to arrange in the engine compartment. At the same time, this utility model has a simple structure, stable operation, and can significantly improve the reliability and service life of high-power diesel engines under long-term, high-load conditions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the structure of the oil pan of this utility model; Figure 3 This is a cross-sectional view of the oil pan structure of this utility model; Figure 4 This is a diagram of the water circulation system of this utility model; in: 1. Shell; 11. Inlet; 12. Oil dipstick sleeve; 13. Baffle; 14. Cooling water channel; 15. Drain plug; 16. Cover plate; 17. Outlet; 18. Upper shell; 19. Lower shell. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0015] Specifically, such as Figures 1 to 4 As shown, an oil pan for a high-power diesel engine includes a housing 1 and an oil drain plug 15 and an oil dipstick sleeve 12 disposed on the housing 1. The housing 1 has an integrated cooling water channel 14, and the cooling water channel 14 is provided with an inlet 11 and an outlet 17 that communicate with the engine cooling system.

[0016] It should be noted that the engine coolant (usually a mixture of water and ethylene glycol) flows into the cooling water channel through the inlet 11. As it flows through the oil pan, it exchanges heat with the high-temperature engine oil in the oil pan. After absorbing the heat from the engine oil, the cooled coolant flows out from the outlet 17 and returns to the engine's cooling system for heat dissipation. This cycle repeats continuously, achieving continuous and efficient cooling of the engine oil.

[0017] At least one partition 13 is provided inside the housing 1, which divides the inner cavity of the housing 1 into a meandering oil passage. The partition 13 is made of aluminum alloy.

[0018] It should be noted that the baffle 13 serves as a reinforcing rib, improving the overall rigidity of the oil pan. On the other hand, it divides the internal space of the oil pan into a meandering channel, allowing the oil to flow a longer path within the oil pan and have more time to exchange heat with the shell wall, which integrates the cooling channels 1-4. In addition, aluminum alloy has good thermal conductivity, and the partition itself can act as an additional heat dissipation fin to conduct the heat of the engine oil to the oil pan wall, thereby enhancing the overall heat dissipation effect.

[0019] The housing 1 includes an upper housing 18 and a lower housing 19 that are detachably connected, and the cooling water channel 14 is disposed on the inner side of the lower housing 19.

[0020] It should be noted that this split structure facilitates the casting and machining of complex cooling channels, and also makes daily maintenance and cleaning easier; at the same time, the aluminum alloy casting process can easily form complex cooling channels, and aluminum alloy itself has excellent heat dissipation performance.

[0021] The lower shell 19 is made of cast aluminum alloy, and the cooling water channel 14 is a pipe or cavity that meanders around the inside of the shell 1.

[0022] It should be noted that this meandering layout maximizes the contact area between the cooling water channels and the engine oil, thereby maximizing heat exchange efficiency.

[0023] A cover plate 16 is provided on one side of the housing 1.

[0024] The specific working method is described below using specific embodiments: Example 1

[0025] When the engine is running, the high-temperature engine oil splashes or flows back into the oil pan 1; at the same time, the low-temperature coolant in the engine cooling system is pumped into the cooling water channel 14 through the inlet 11; as the coolant flows in the meandering cooling water channel 14, it undergoes efficient heat exchange with the high-temperature engine oil in the oil pan through the lower housing 19 made of aluminum alloy and the baffle 13, absorbing the heat of the engine oil; the heated coolant flows out from the outlet 17 and returns to the engine's main cooling cycle, is cooled by the radiator, and is recycled again; this process continues, thereby stably controlling the engine oil temperature within an ideal range. Example 2

[0026] The opposite is true when the engine is cold-started; at this time, the coolant temperature is higher and the engine oil temperature is lower; the warm coolant flows through the cooling water passage 14, which can heat the engine oil, reduce its viscosity rapidly, and allow it to reach the lubrication points more quickly, reducing the wear caused by cold start.

[0027] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An oil pan for a high-power diesel engine, comprising a housing (1) and a drain plug (15) and a dipstick sleeve (12) disposed on the housing (1), characterized in that, The housing (1) has an integrated cooling water channel (14) inside, and the cooling water channel (14) is provided with an inlet (11) and an outlet (17) that are connected to the engine cooling system.

2. The oil pan for a high-power diesel engine according to claim 1, characterized in that: The housing (1) is provided with at least one partition (13), which divides the inner cavity of the housing (1) into a meandering oil passage. The partition (13) is made of aluminum alloy.

3. The oil pan for a high-power diesel engine according to claim 1, characterized in that: The housing (1) includes a detachably connected upper housing (18) and a lower housing (19), and the cooling water channel (14) is disposed on the inner side of the lower housing (19).

4. An oil pan for a high-power diesel engine according to claim 3, characterized in that: The lower shell (19) is made of aluminum alloy casting, and the cooling water channel (14) is a pipe or cavity that meanders around the inside of the shell (1).

5. An oil pan for a high-power diesel engine according to claim 1, characterized in that: A cover plate (16) is provided on one side of the housing (1).

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