External cooling device for engine oil

Abstract

The utility model relates to an external cooling device for engine oil, which belongs to the technical field of engine components and comprises an external cooler, a plurality of cooling oil cavities are arranged in the external cooler along the vertical direction, a cooling water cavity is arranged between every two adjacent cooling oil cavities, a plurality of oil pipes are communicated between every two adjacent cooling oil cavities and penetrate through the cooling water cavities, and the cooling oil cavities are communicated with the cooling water cavities. The outer sides of the adjacent cooling water cavities are connected with a plurality of cooling water holes, the cooling water holes are located in the outer sides of the cooling oil cavities, the bottommost cooling water cavity and the cooling oil cavity are connected with a cooling water inlet pipe and a cooling oil inlet pipe respectively, and the topmost cooling water cavity and the cooling oil cavity are connected with a cooling water outlet pipe and a cooling oil outlet pipe respectively. According to the external cooler, the cooling oil cavities which are communicated through the oil pipes are formed in the external cooler, the cooling water cavities which are used for cooling the cooling oil cavities and are not communicated with the cooling oil cavities are formed between the adjacent cooling oil cavities, and the oil pipes are located in the cooling water cavities, so that engine oil entering the external cooler can be better cooled.

Description

Technical Field

[0001] The utility model relates to an external cooling device for engine oil, belonging to the technical field of engine components. Background Art

[0002] Engine oil, also known as engine lubricating oil, can play the roles of lubrication and wear reduction, auxiliary cooling and temperature reduction, sealing and leak prevention, rust and corrosion prevention, shock absorption and buffering for the engine. The oil in the engine oil tank needs to be cooled. The cooling effect of internal cooling alone is poor. Therefore, an oil cooler is currently arranged outside the engine. The oil in the oil tank is connected to the cooler through a delivery inlet pipe and a delivery return pipe. However, the current cooler only includes an oil chamber and a cooling jacket arranged outside the oil chamber. The cooling water on the engine is introduced into the cooling jacket through a cooling water inlet pipe and a cooling water return pipe to cool the oil. However, such cooling effect is poor, which affects the use of the engine oil. Utility Model Content

[0003] The utility model provides an external cooling device for engine oil, which solves the problem that the current external cooler has a poor cooling effect on the engine oil, thus affecting the use of the engine oil.

[0004] The utility model relates to an external cooling device for engine oil, comprising an external cooler, wherein a plurality of cooling oil chambers are provided in the external cooler along a vertical direction, cooling water chambers are provided between adjacent cooling oil chambers, a plurality of oil through pipes are connected between adjacent cooling oil chambers, the oil through pipes pass through the cooling water chambers, a plurality of cooling water holes are connected to the outsides of adjacent cooling water chambers, the cooling water holes are located on the outsides of the cooling oil chambers, the cooling water chamber and the cooling oil chamber at the bottom are connected to a cooling water inlet pipe and a cooling oil inlet pipe respectively, and the cooling water chamber and the cooling oil chamber at the top are connected to a cooling water outlet pipe and a cooling oil outlet pipe respectively.

[0005] As a preferred embodiment, a cooling base is fixed to the bottom of the external cooler, and a water guide hole and an oil guide hole are provided in the cooling base. An annular distribution water cavity connected to the lowest cooling water cavity is provided on the inner side of the lower part of the external cooler. The top of the water guide hole is connected to the annular distribution water cavity, and the other end of the water guide hole is connected to the cooling water inlet pipe. The top of the oil guide hole is connected to the lowest cooling oil cavity, and the other end of the oil guide hole is connected to the cooling oil inlet pipe. The cooling water and engine oil can be diverted through the cooling base, which is more convenient.

[0006] As a preferred embodiment, it also includes an oil cooler, which is equipped with a serpentine cooling oil coil, a cooling water hose wrapped around the cooling oil coil, a connecting pipe connected to the cooling oil outlet pipe fixed at the bottom of the cooling oil coil, and a water inlet pipe fixed at the lower end of the cooling water hose. The oil discharged from the external cooler can be passed into the cooling oil coil of the oil cooler, and cooled again by the cooling water entering through the cooling water hose, thereby increasing the cooling effect and ensuring that the oil returned to the engine oil tank is in a completely cooled state, thereby ensuring the subsequent use of the oil.

[0007] As a preferred embodiment, the cooling water inlet pipe is connected to the delivery pipe, the other end of the water inlet pipe is connected to the delivery pipe, and the cooling oil inlet pipe is connected to the oil delivery pipe, so as to facilitate the diversion of cooling water delivered from the engine's own cooling system.

[0008] As a preferred embodiment, the cooling water outlet pipe is connected to the return pipe, and the upper end of the cooling water hose is fixed with a water outlet pipe connected to the return pipe, which can conveniently and uniformly recycle the used cooling water and then return it to the water tank of the engine.

[0009] The utility model has the following beneficial effects:

[0010] The external cooler is equipped with multiple cooling oil chambers connected by oil pipes. Adjacent cooling oil chambers are provided with cooling water chambers for cooling them but not connected to them. The oil pipes are located in the cooling water chambers, which can better cool the engine oil entering the external cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0013] Figure 3 This is a structural diagram of another embodiment of the present invention;

[0014] In the figure: 1. Cooling base; 2. Cooling water inlet pipe; 3. Water guide hole; 4. Cooling oil inlet pipe; 5. Annular distribution water cavity; 6. Cooling water hole; 7. Cooling water cavity; 8. Oil pipe; 9. Cooling water outlet pipe; 10. Cooling oil cavity; 11. External cooler; 12. Cooling oil outlet pipe; 13. Oil guide hole; 14. Oil pipe; 15. Water inlet pipe; 16. Return pipe; 17. Connecting pipe; 18. Cooling water hose; 19. Cooling oil coil; 20. Oil cooler; 21. Water outlet pipe; 22. Delivery pipe. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the embodiments.

[0016] Example 1, as Figure 1 and Figure 3 As shown, the utility model is an external cooling device for engine oil, including an external cooler 11, wherein a plurality of cooling oil chambers 10 are provided in the external cooler 11 along the vertical direction, a cooling water chamber 7 is provided between adjacent cooling oil chambers 10, a plurality of oil through pipes 8 are connected between adjacent cooling oil chambers 10, the oil through pipes 8 pass through the cooling water chambers 7, a plurality of cooling water holes 6 are connected to the outside of adjacent cooling water chambers 7, the cooling water holes 6 are located on the outside of the cooling oil chambers 10, the cooling water chamber 7 and the cooling oil chamber 10 at the bottom are respectively connected to the cooling water inlet pipe 2 and the cooling oil inlet pipe 4, and the cooling water chamber 7 and the cooling oil chamber 10 at the top are respectively connected to the cooling water outlet pipe 9 and the cooling oil outlet pipe 12.

[0017] During operation, the cooling water of the engine cooling system enters the cooling water chamber 7 at the bottom from the cooling water inlet pipe 2, and is then gradually transported upward through the cooling water hole 6. During this process, the cooling water will cool the hot engine oil in the cooling oil chamber 10 entering from the cooling oil inlet pipe 4, and then the cooled engine oil is discharged from the cooling oil outlet pipe 12, and the cooling water is discharged from the cooling water outlet pipe 9.

[0018] Example 2, based on Example 1, features a cooling base 1 fixed to the bottom of an external cooler 11. Cooling base 1 is provided with a water guide hole 3 and an oil guide hole 13. An annular distribution water cavity 5 is provided on the inner side of the lower portion of the external cooler 11, connecting to the lowest cooling water cavity 7. The top of the water guide hole 3 connects to the annular distribution water cavity 5, and the other end of the water guide hole 3 is connected to the cooling water inlet pipe 2. The top of the oil guide hole 13 connects to the lowest cooling oil cavity 10, and the other end of the oil guide hole 13 is connected to the cooling oil inlet pipe 4. Sealing rings are provided on the outside of the water guide hole 3 and the oil guide hole 13 at the connection between the cooling base 1 and the external cooler 11 to prevent leakage.

[0019] Example 3, as Figure 3 As shown, on the basis of Example 1 or 2, the external cooling device also includes an oil cooling box 20, in which a serpentine cooling oil coil 19 is provided, and a cooling water hose 18 is wound around the cooling oil coil 19. A connecting pipe 17 connected to the cooling oil outlet pipe 12 is fixed to the bottom of the cooling oil coil 19, and the lower end of the cooling water hose 18 is fixedly connected to the water inlet pipe 15.

[0020] The cooling water inlet pipe 2 is connected to the delivery pipe 22, the other end of the water inlet pipe 15 is connected to the delivery pipe 22, and the cooling oil inlet pipe 4 is connected to the oil delivery pipe 14. The oil delivery pipe 14 is connected to the engine oil delivery port, and the upper end of the cooling oil delivery coil 19 is connected to the engine oil return port through a pipe.

[0021] The cooling water outlet pipe 9 is connected to the return pipe 16. A water outlet pipe 21 connected to the return pipe 16 is fixed to the upper end of the cooling water hose 18. The return pipe 16 is connected to the engine cooling system's water tank, and the delivery pipe 22 is connected to the engine cooling system's water supply. The oil discharged from the cooling oil outlet pipe 12 flows upward through the connecting pipe 17 into the cooling oil delivery coil 19 within the oil cooler 20. During this process, it is diverted from the delivery pipe 22 into the water inlet pipe 15 and then enters the cooling water in the cooling water hose 18 for heat exchange, undergoing secondary cooling. The secondary cooling water then enters the return pipe 16, merges with the primary cooling water, and returns to the water tank, with the oil returning directly to the oil tank.

[0022] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0023] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

Claims

1. An external cooling device for engine oil, comprising an external cooler (11), characterized in that: A plurality of cooling oil chambers (10) are provided in the external cooler (11) along the vertical direction, a cooling water chamber (7) is provided between adjacent cooling oil chambers (10), a plurality of oil pipes (8) are connected between adjacent cooling oil chambers (10), the oil pipes (8) pass through the cooling water chambers (7), a plurality of cooling water holes (6) are connected to the outside of adjacent cooling water chambers (7), the cooling water holes (6) are located outside the cooling oil chambers (10), the bottom cooling water chamber (7) and the cooling oil chamber (10) are respectively connected to the cooling water inlet pipe (2) and the cooling oil inlet pipe (4), and the top cooling water chamber (7) and the cooling oil chamber (10) are respectively connected to the cooling water outlet pipe (9) and the cooling oil outlet pipe (12).

2. The external engine oil cooling device according to claim 1, characterized in that: A cooling base (1) is fixed to the bottom of the external cooler (11), and a water guide hole (3) and an oil guide hole (13) are provided in the cooling base (1). An annular distribution water cavity (5) connected to the lowest cooling water cavity (7) is provided on the inner side of the lower part of the external cooler (11). The top of the water guide hole (3) is connected to the annular distribution water cavity (5), and the other end of the water guide hole (3) is connected to the cooling water inlet pipe (2). The top of the oil guide hole (13) is connected to the lowest cooling oil cavity (10), and the other end of the oil guide hole (13) is connected to the cooling oil inlet pipe (4).

3. The external engine oil cooling device according to claim 1, characterized in that: The oil cooler (20) further comprises an oil cooler (20), wherein a serpentine cooling oil delivery coil (19) is provided in the oil cooler (20), a cooling water delivery hose (18) is wound around the cooling oil delivery coil (19), a connecting pipe (17) connected to a cooling oil outlet pipe (12) is fixed at the bottom of the cooling oil delivery coil (19), and a water inlet pipe (15) is fixedly connected to the lower end of the cooling water delivery hose (18).

4. The external engine oil cooling device according to claim 3, characterized in that: The cooling water inlet pipe (2) is connected to the delivery pipe (22), the other end of the water inlet pipe (15) is connected to the delivery pipe (22), and the cooling oil inlet pipe (4) is connected to the oil delivery pipe (14).

5. The external engine oil cooling device according to claim 3, characterized in that: The cooling water outlet pipe (9) is connected to the return water pipe (16), and the upper end of the cooling water delivery hose (18) is fixed with a water outlet pipe (21) connected to the return water pipe (16).

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