Engine water outlet pipe and engine system with same

Abstract

The utility model provides an engine water outlet pipe and an engine system with the same, the engine water outlet pipe comprises a water outlet main pipe, the water outlet main pipe is provided with a water intake and a water return port, the water intake and the water return port are respectively used for being connected with a retarder, and the water outlet main pipe comprises a first pipe section communicated with the water intake and a second pipe section communicated with the water return port; the multiple connecting pipes are all used for being connected with an engine cylinder cover, and the multiple connecting pipes are all connected with the water outlet main pipe; the partition plate group comprises a partition plate and a mounting plate which are connected with each other, and the mounting plate is connected with the outer side wall of the water return port; when the partition plate is arranged between the first pipe section and the second pipe section, the first pipe section and the second pipe section are not communicated with each other, and when the partition plate is located on the outer side of the water outlet main pipe, the first pipe section and the second pipe section are communicated with each other. The engine structure solves the problem that an engine structure in the prior art is poor in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an engine water outlet pipe and an engine system having the same. Background Art

[0002] At present, mining trucks and commercial vehicles generally use retarders, which include hydraulic retarders and non-hydraulic retarders. In the engine system using a hydraulic retarder, the engine's water outlet pipe is designed with a water intake pipe port and a return pipe port for cooling the hydraulic retarder. In the engine system using a non-hydraulic retarder, the engine's water outlet pipe has no water intake pipe port and return pipe port.

[0003] Since the outlet pipe structures of the hydraulic retarder and the non-hydraulic retarder are different, two sets of outlet pipe structures are generally required. This increases the number of engine parts, increases the order number deformation, and reduces the versatility of the engine structure. Utility Model Content

[0004] The main purpose of the utility model is to provide an engine water outlet pipe and an engine system having the same, so as to solve the problem of poor versatility of the engine structure in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an engine water outlet pipe is provided, including: a water outlet main pipe, having a water intake and a return water port, the water intake and the return water port are respectively used to connect to the retarder, the water outlet main pipe includes a first pipe section connected to the water intake and a second pipe section connected to the return water port; a plurality of connecting pipes, all used to connect to the engine cylinder head, and the plurality of connecting pipes are connected to the water outlet main pipe; a partition plate group, including mutually connected partition plates and a mounting plate, the mounting plate is connected to the outer side wall of the return water port; wherein, when the partition plate is arranged between the first pipe section and the second pipe section, the first pipe section and the second pipe section are not connected to each other, and when the partition plate is located on the outside of the water outlet main pipe, the first pipe section and the second pipe section are connected to each other.

[0006] Furthermore, the water outlet main pipe also includes: a water outlet connecting pipe section, the first pipe section and the second pipe section are connected through the water outlet connecting pipe section, the water outlet connecting pipe section has a first side wall, the return water port is arranged on the first side wall, and the first side wall is provided with an insertion opening connected to the tube cavity of the water outlet connecting pipe section, and the partition plate is inserted in the water outlet connecting pipe section through the insertion opening; wherein, the water outlet connecting pipe section is located between two adjacent connecting pipes among the multiple connecting pipes.

[0007] Furthermore, a first limiting protrusion and a second limiting protrusion are provided on the inner side wall of the water outlet connecting pipe section, and the first limiting protrusion and the second limiting protrusion are arranged at intervals so as to form a limiting space between the first limiting protrusion and the second limiting protrusion; wherein, the insertion opening is arranged opposite to the limiting space and is connected to the limiting space so that the partition plate can be inserted into the limiting space through the insertion opening.

[0008] Furthermore, the partition plate is a first rectangular plate, and the flow cross-section shape of the limiting space is similar to the shape of the first rectangular plate; and / or, the first limiting protrusion and the second limiting protrusion both extend along the circumference of the water outlet connecting pipe section to form an annular protrusion.

[0009] Furthermore, the mounting plate is a second rectangular plate, the shape of the first side wall is rectangular, and the area of ​​the second rectangular plate is equal to the area of ​​the first side wall; and / or, a plurality of first connecting holes are provided on the first side wall, and a plurality of second connecting holes are provided on the mounting plate, and the plurality of first connecting holes and the plurality of second connecting holes are provided in one-to-one correspondence; the engine water outlet pipe also includes a plurality of first fasteners, and each first fastener is respectively passed through the corresponding first connecting hole and the second connecting hole, so that the mounting plate is detachably connected to the first side wall.

[0010] Furthermore, a avoidance hole for avoiding the return water outlet is provided on the mounting plate. When the partition plate is located on the outside of the water outlet connecting pipe section, the engine water outlet pipe includes: a first sealing plate, the first sealing plate cover is arranged on the avoidance hole; and a second sealing plate, the second sealing plate cover is arranged on the water intake.

[0011] Furthermore, a plurality of third connecting holes are provided on the mounting plate, a plurality of fourth connecting holes are provided on the first blocking plate, and a plurality of fifth connecting holes are provided on the first side wall. The plurality of third connecting holes and the plurality of fourth connecting holes are connected one-to-one, and the plurality of fourth connecting holes and the plurality of fifth connecting holes are connected one-to-one; the engine water outlet pipe includes: a plurality of second fasteners, and the plurality of second fasteners are respectively passed through the corresponding third connecting holes, fourth connecting holes and fifth connecting holes, so that the first blocking plate can be detachably mounted on the mounting plate and the first side wall.

[0012] Furthermore, the water outlet connecting pipe section, the first pipe section, the second pipe section and the multiple connecting pipes are an integrated structure; and / or the cross-sectional area of ​​the water outlet connecting pipe section is greater than the cross-sectional area of ​​the first pipe section, and the cross-sectional area of ​​the first pipe section is equal to the cross-sectional area of ​​the second pipe section.

[0013] Furthermore, the mounting plate and the partition plate are an integral structure; and / or, the partition plate and the mounting plate are arranged at an angle of 90°; and / or, the partition plate is located on one side of the mounting plate in the thickness direction.

[0014] According to another aspect of the present invention, an engine system is provided, comprising: the above-mentioned engine water outlet pipe; an engine cylinder, comprising a cylinder body and a cylinder head connected to each other, and multiple connecting pipes of the engine water outlet pipe are all connected to the cylinder head; and a retarder, the retarder being connected to the water inlet and return port on the water outlet main pipe of the engine water outlet pipe.

[0015] Applying the technical solution of the utility model, the utility model provides an engine water outlet pipe, which includes a water outlet main pipe, multiple connecting pipes and a partition plate group. The water outlet main pipe has a water intake and a return water port, and the water intake and the return water port are respectively used to connect to the retarder. The water outlet main pipe includes a first pipe section connected to the water intake and a second pipe section connected to the return water port; the multiple connecting pipes are all used to connect to the engine cylinder head, and the multiple connecting pipes are all connected to the water outlet main pipe; the partition plate group includes mutually connected partition plates and a mounting plate, and the mounting plate is connected to the outer side wall of the return water port; wherein, when the partition plate is arranged between the first pipe section and the second pipe section, the first pipe section and the second pipe section are not connected to each other, and when the partition plate is located on the outside of the water outlet main pipe, the first pipe section and the second pipe section are connected to each other. Through the above-mentioned setting, when the retarder adopts a hydraulic retarder, the partition plate is located on the inner side of the water outlet main pipe so that the first pipe section and the second pipe section are not connected to each other, and the hydraulic retarder is connected between the water intake and the return water port, so that the coolant flows to the engine cylinder head, the connecting pipe, the tube cavity of the first pipe section, the water intake, the hydraulic retarder, the return water port, and the tube cavity of the second pipe section in sequence; when the retarder adopts a non-hydraulic retarder, the partition plate is located on the outer side of the water outlet main pipe so that the first pipe section and the second pipe section are connected to each other, so that the coolant flows to the engine cylinder head, the connecting pipe, the tube cavity of the first pipe section, and the tube cavity of the second pipe section in sequence. It can be seen that the mutual cooperation of the partition plate group, the water outlet main pipe, and the connecting pipe of the present application enables the engine water outlet pipe to adapt to both the hydraulic retarder and the non-hydraulic retarder at the same time, thereby improving the versatility of the engine structure. In addition, the mounting plate of the partition plate group is connected to the outer wall of the return water port, which facilitates the installation of the partition plate group. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A front view of the water outlet main pipe of the engine water outlet pipe according to the present invention is shown without a partition plate assembly;

[0018] Figure 2 Shown according to Figure 1 A structural diagram of the AA section of the engine water outlet pipe;

[0019] Figure 3A top view of an embodiment of an engine water outlet pipe according to the present utility model is shown;

[0020] Figure 4 A rear view of an embodiment of an engine water outlet pipe according to the present invention is shown;

[0021] Figure 5 A front view showing a water outlet main pipe of an engine water outlet pipe according to the present invention with a partition plate group provided thereon;

[0022] Figure 6 Shown according to Figure 5 A structural diagram of the BB section of the engine water outlet pipe;

[0023] Figure 7 A top view showing a water outlet main pipe of an engine water outlet pipe according to the present invention with a partition plate group provided thereon;

[0024] Figure 8 A front view of a water outlet main pipe of an engine water outlet pipe according to the present invention, wherein a first connecting pipe and a second connecting pipe are provided on the water outlet main pipe;

[0025] Figure 9 Shown according to Figure 8 A structural diagram of the CC section of the engine water outlet pipe;

[0026] Figure 10 A top view showing a first connecting pipe and a second connecting pipe provided on the water outlet main pipe of the engine water outlet pipe according to the present invention is shown;

[0027] Figure 11 A front view showing the cooperation between the partition plate group and the first blocking plate of the engine water outlet pipe according to the present utility model is shown;

[0028] Figure 12 A top view showing the cooperation between the partition plate group and the first blocking plate of the engine water outlet pipe according to the present utility model is shown;

[0029] Figure 13 A front view of a partition plate assembly of an engine water outlet pipe according to the present invention is shown;

[0030] Figure 14 A rear view of the partition plate assembly of the engine water outlet pipe according to the present invention is shown.

[0031] The above drawings include the following reference numerals:

[0032] 10. Water outlet pipe; 101. Water intake; 102. Water return port; 11. First pipe section; 12. Second pipe section; 13. Water outlet connecting pipe section; 130. First side wall; 131. Insert opening; 132. First connecting hole; 133. Fifth connecting hole; 103. Outlet;

[0033] 20. Connecting pipe; 30. Separator plate assembly; 31. Separator plate; 32. Mounting plate; 320. Second connecting hole; 321. Avoidance hole; 322. Third connecting hole;

[0034] 100. First fastener; 200. Second fastener; 40. First blocking plate; 50. Second blocking plate; 41. First connecting pipe; 51. Second connecting pipe. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] Please refer to Figures 1 to 14 The utility model provides an engine water outlet pipe, which includes a water outlet main pipe 10, a plurality of connecting pipes 20 and a partition plate group 30. The water outlet main pipe 10 has a water intake port 101 and a return water port 102, which are respectively used to be connected to the retarder. The water outlet main pipe 10 includes a first pipe section 11 connected to the water intake port 101 and a second pipe section 12 connected to the return water port 102; the plurality of connecting pipes 20 are all used to be connected to the engine cylinder head, and the plurality of connecting pipes 20 are all connected to the water outlet main pipe 10; the partition plate group 30 includes a partition plate 31 and a mounting plate 32 that are connected to each other, and the mounting plate 32 is connected to the outer side wall of the return water port 102; wherein, when the partition plate 31 is arranged between the first pipe section 11 and the second pipe section 12, the first pipe section 11 and the second pipe section 12 are not connected to each other, and when the partition plate 31 is located outside the water outlet main pipe 10, the first pipe section 11 and the second pipe section 12 are connected to each other.

[0037] Through the above arrangement, when the retarder adopts a hydraulic retarder, the partition plate 31 is located on the inner side of the water outlet main pipe 10 so that the first pipe section 11 and the second pipe section 12 are not connected to each other, and the hydraulic retarder is connected between the water intake 101 and the return water port 102. In this way, the coolant flows in sequence to the engine cylinder head, the connecting pipe 20, the tube cavity of the first pipe section 11, the water intake 101, the hydraulic retarder, the return water port 102, and the tube cavity of the second pipe section 12; when the retarder adopts a non-hydraulic retarder, the partition plate 31 is located on the outer side of the water outlet main pipe 10 so that the first pipe section 11 and the second pipe section 12 are connected to each other. In this way, the coolant flows in sequence to the engine cylinder head, the connecting pipe 20, the tube cavity of the first pipe section 11, and the tube cavity of the second pipe section 12. It can be seen that the mutual cooperation of the partition plate group 30, the water outlet main pipe 10 and the connecting pipe 20 of the present application enables the engine water outlet pipe to adapt to both the hydraulic retarder and the non-hydraulic retarder, thereby improving the versatility of the engine structure. In addition, the mounting plate 32 of the partition plate group 30 is connected to the outer wall of the return water port 102, which facilitates the installation of the partition plate group 30.

[0038] Specifically, the water outlet main 10 also has an outlet 103. When the retarder adopts a hydraulic retarder, the coolant flows in sequence to the engine cylinder head, the connecting pipe 20, the tube cavity of the first pipe section 11, the water intake 101, the hydraulic retarder, the return water port 102, the tube cavity of the second pipe section 12, and the outlet 103; when the retarder adopts a hydraulic retarder, the coolant flows in sequence to the engine cylinder head, the connecting pipe 20, the tube cavity of the first pipe section 11, the tube cavity of the second pipe section 12, and the outlet 103.

[0039] Specifically, the water intake 101 and the hydraulic retarder are connected via the second connecting pipe 51 , and the water return port 102 and the hydraulic retarder are connected via the first connecting pipe 41 .

[0040] In the embodiment of the present application, the outlet main pipe 10 further includes an outlet connecting pipe section 13, which connects the first pipe section 11 and the second pipe section 12. The outlet connecting pipe section 13 has a first sidewall 130, and the return water port 102 is disposed on the first sidewall 130. The first sidewall 130 is provided with an insertion opening 131 that communicates with the lumen of the outlet connecting pipe section 13. The partition plate 31 is inserted into the outlet connecting pipe section 13 through the insertion opening 131. The outlet connecting pipe section 13 is located between two adjacent connecting pipes 20 among the plurality of connecting pipes 20. This arrangement facilitates the connection between the mounting plate and the return water port 102.

[0041] Specifically, the first side wall 130 is a plane, and the mounting plate 32 is connected to the first side wall 130 , so that the connection between the mounting plate 32 and the first side wall 130 is reliable.

[0042] In the embodiment of the present application, the inner sidewall of the water outlet connecting pipe section 13 is provided with a first limiting protrusion and a second limiting protrusion. The first limiting protrusion and the second limiting protrusion are spaced apart to form a limiting space between the first limiting protrusion and the second limiting protrusion. The insertion opening 131 is arranged opposite to the limiting space and communicates with the limiting space, so that the partition plate 31 can be inserted into the limiting space through the insertion opening 131. This arrangement facilitates the insertion of the partition plate 31 into the limiting space, and the limiting space is used to limit the partition plate 31, thereby improving the structural stability between the partition plate 31 and the water outlet connecting pipe section 13 and ensuring the separation effect between the first pipe section 11 and the second pipe section 12.

[0043] Optionally, the partition plate 31 is a first rectangular plate, and the flow cross-sectional shape of the limiting space is similar to the shape of the first rectangular plate. In this way, the flow cross-sectional shape of the limiting space is also rectangular. This arrangement makes the matching structure between the partition plate 31 and the water outlet connecting pipe section 13 stable and the separation effect good; and / or, the first limiting protrusion and the second limiting protrusion both extend along the circumference of the water outlet connecting pipe section 13 to form an annular protrusion. In this way, the contact area between the partition plate 31 and the first limiting protrusion and the second limiting protrusion is increased, thereby improving the limiting effect of the partition plate 31, and further making the assembly structure between the partition plate and the water outlet connecting pipe section 13 stable and reliable.

[0044] In an embodiment of the present application, the mounting plate 32 is a second rectangular plate, the first side wall 130 is rectangular in shape, and the area of ​​the second rectangular plate is equal to the area of ​​the first side wall 130. In this way, the edge of the mounting plate 32 can be aligned with the edge of the first side wall 130 to prevent the protruding structure from scratching other parts; and / or, a plurality of first connecting holes 132 are provided on the first side wall 130, and a plurality of second connecting holes 320 are provided on the mounting plate 32, and the plurality of first connecting holes 132 and the plurality of second connecting holes 320 are provided in a one-to-one correspondence; the engine water outlet pipe also includes a plurality of first fasteners 100, and each first fastener 100 is respectively inserted into the corresponding first connecting hole 132 and the second connecting hole 320, so that the mounting plate 32 is detachably connected to the first side wall 130, so that the position of the partition plate 31 can be conveniently adjusted to make the first pipe section 11 and the second pipe section 12 connected to or separated from each other.

[0045] In the prior art, there is a technical solution that uses a valve structure to separate the two cavities of the water outlet pipe. The valve structure is arranged at one end of the water outlet pipe in the longitudinal direction. In this way, it is necessary to respectively provide connecting sealing parts at the end of the water outlet pipe and the return water port. The production cost is high, and the cost of the valve structure itself is also high. It can be seen that the arrangement of the valve structure in the prior art has the disadvantages of a complex structure of the engine water outlet pipe and a large number of parts.

[0046] The present application adopts a partition plate group 30 to separate or connect the first pipe section 11 and the second pipe section 12. Compared with the valve structure, the manufacturing cost of the partition plate group 30 is lower.

[0047] Moreover, in an embodiment of the present application, a avoidance hole 321 for avoiding the return water port 102 is provided on the mounting plate 32. When the partition plate 31 is located on the outside of the water outlet connecting pipe section 13, the engine water outlet pipe includes: a first sealing plate 40, the first sealing plate 40 is covered on the avoidance hole 321; and a second sealing plate 50, the second sealing plate 50 is covered on the water intake port 101.

[0048] Specifically, the mounting plate 32 is provided with a plurality of third connection holes 322, the first blocking plate 40 is provided with a plurality of fourth connection holes, and the first side wall 130 is provided with a plurality of fifth connection holes 133. The plurality of third connection holes 322 and the plurality of fourth connection holes are connected in a one-to-one correspondence, and the plurality of fourth connection holes are connected in a one-to-one correspondence with the plurality of fifth connection holes 133. The engine water outlet pipe includes: a plurality of second fasteners 200, which are respectively provided through the corresponding third connection holes 322, fourth connection holes, and fifth connection holes 133, so that the first blocking plate 40 can be detachably mounted on the mounting plate 32 and the first side wall 130. It can be seen that the present application connects the mounting plate 32 to the first side wall 130. Therefore, when installing the first blocking plate 40, only the plurality of second fasteners 200 need to be provided. This reduces the use of components and simplifies the structure of the engine water outlet pipe.

[0049] In an embodiment of the present application, the water outlet connecting pipe section 13, the first pipe section 11, the second pipe section 12 and the multiple connecting pipes 20 are an integrated structure. In this way, the number of parts is reduced, and the connection between the water outlet connecting pipe section 13, the first pipe section 11 and the second pipe section 12 is reliable; and / or the cross-sectional area of ​​the water outlet connecting pipe section 13 is greater than the cross-sectional area of ​​the first pipe section 11, and the cross-sectional area of ​​the first pipe section 11 is equal to the cross-sectional area of ​​the second pipe section 12.

[0050] In an embodiment of the present application, the first limiting protrusion and the second limiting protrusion of the present application are both annular protrusions, the first limiting protrusion extends along the length direction of the water outlet main pipe, and the second limiting protrusion extends along the length direction of the water outlet main pipe. In this way, the inner wall surface of the first limiting protrusion can enclose a first communicating cavity connected to the first pipe section 11, and the inner wall surface of the second limiting protrusion can enclose a second communicating cavity connected to the second pipe section 12. The limiting space is located between the first communicating cavity and the second communicating cavity, and the cross-sectional area of ​​the water outlet connecting pipe section 13 is larger than the cross-sectional area of ​​the first pipe section 11. In this way, the flow cross-sectional area of ​​the first communicating cavity can be the same as the flow cross-sectional area of ​​the first pipe section 11, and the flow cross-sectional area of ​​the second communicating cavity can be the same as the flow cross-sectional area of ​​the second pipe section 12, so that when the first pipe section 11 and the second pipe section 12 are connected to each other, the communication effect between the first pipe section 11 and the second pipe section 12 is guaranteed.

[0051] Optionally, the water outlet connecting pipe section 13, the first pipe section 11, the second pipe section 12 and the plurality of connecting pipes 20 are cast into an integral structure through a mold.

[0052] Optionally, the mounting plate 32 and the partition plate 31 are an integral structure, so that the mounting plate 32 and the partition plate 31 are one component, which reduces the number of components and facilitates the operation of the partition plate 31; and / or, the partition plate 31 and the mounting plate 32 are arranged at a 90° angle, so that they can adapt to the structure of the water outlet pipe; and / or, the partition plate 31 is located on one side of the mounting plate 32 in the thickness direction, so that when the partition plate 31 is inserted into the water outlet pipe 10, the side of the mounting plate 32 away from the partition plate 31 is a plane, so that the connection between the mounting plate 32 and the first connecting pipe 41 is convenient.

[0053] The utility model also provides an engine system, comprising: the above-mentioned engine water outlet pipe; an engine cylinder, comprising a cylinder body and a cylinder head connected to each other, and multiple connecting pipes 20 of the engine water outlet pipe are all connected to the cylinder head; a retarder, the retarder is connected to the water intake 101 and the return water port 102 on the water outlet main pipe 10 of the engine water outlet pipe.

[0054] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0055] The utility model provides an engine water outlet pipe, which includes a water outlet main pipe 10, a plurality of connecting pipes 20 and a partition plate group 30. The water outlet main pipe 10 has a water intake 101 and a return water port 102, which are respectively used to be connected to a retarder. The water outlet main pipe 10 includes a first pipe section 11 connected to the water intake 101 and a second pipe section 12 connected to the return water port 102; the plurality of connecting pipes 20 are all used to be connected to an engine cylinder head, and the plurality of connecting pipes 20 are all connected to the water outlet main pipe 10; the partition plate group 30 includes a partition plate 31 and a mounting plate 32 that are connected to each other, and the mounting plate 32 is connected to the outer side wall of the return water port 102; wherein, when the partition plate 31 is arranged between the first pipe section 11 and the second pipe section 12, the first pipe section 11 and the second pipe section 12 are not connected to each other, and when the partition plate 31 is located on the outer side of the water outlet main pipe 10, the first pipe section 11 and the second pipe section 12 are connected to each other. Through the above arrangement, when the retarder adopts a hydraulic retarder, the partition plate 31 is located on the inner side of the water outlet main pipe 10 so that the first pipe section 11 and the second pipe section 12 are not connected to each other, and the hydraulic retarder is connected between the water intake 101 and the return water port 102. In this way, the coolant flows in sequence to the engine cylinder head, the connecting pipe 20, the tube cavity of the first pipe section 11, the water intake 101, the hydraulic retarder, the return water port 102, and the tube cavity of the second pipe section 12; when the retarder adopts a non-hydraulic retarder, the partition plate 31 is located on the outer side of the water outlet main pipe 10 so that the first pipe section 11 and the second pipe section 12 are connected to each other. In this way, the coolant flows in sequence to the engine cylinder head, the connecting pipe 20, the tube cavity of the first pipe section 11, and the tube cavity of the second pipe section 12. It can be seen that the mutual cooperation of the partition plate group 30, the water outlet main pipe 10 and the connecting pipe 20 of the present application enables the engine water outlet pipe to adapt to both the hydraulic retarder and the non-hydraulic retarder, thereby improving the versatility of the engine structure. In addition, the mounting plate 32 of the partition plate group 30 is connected to the outer wall of the return water port 102, which facilitates the installation of the partition plate group 30.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An engine water outlet pipe, characterized in that: include: A water outlet main pipe (10) having a water intake (101) and a water return port (102), wherein the water intake (101) and the water return port (102) are respectively used to be connected to a retarder, and the water outlet main pipe (10) comprises a first pipe section (11) communicating with the water intake (101) and a second pipe section (12) communicating with the water return port (102); A plurality of connecting pipes (20), each used to be connected to the engine cylinder head, and each of the plurality of connecting pipes (20) is connected to the water outlet main pipe (10); A partition plate group (30) comprises a partition plate (31) and a mounting plate (32) which are connected to each other, wherein the mounting plate (32) is connected to the outer side wall of the water return port (102); wherein when the partition plate (31) is arranged between the first pipe section (11) and the second pipe section (12), the first pipe section (11) and the second pipe section (12) are not connected to each other, and when the partition plate (31) is located on the outer side of the water outlet main pipe (10), the first pipe section (11) and the second pipe section (12) are connected to each other.

2. The engine water outlet pipe according to claim 1, characterized in that: The water outlet main (10) further comprises: a water outlet connecting pipe section (13), the first pipe section (11) and the second pipe section (12) being connected via the water outlet connecting pipe section (13), the water outlet connecting pipe section (13) having a first side wall (130), the water return port (102) being arranged on the first side wall (130), the first side wall (130) being provided with an insertion opening (131) communicating with the tube cavity of the water outlet connecting pipe section (13), the partition plate (31) being inserted into the water outlet connecting pipe section (13) via the insertion opening (131); Wherein, the water outlet connecting pipe section (13) is located between two adjacent connecting pipes (20) among the plurality of connecting pipes (20).

3. The engine water outlet pipe according to claim 2, characterized in that: The inner side wall of the water outlet connecting pipe section (13) is provided with a first limiting protrusion and a second limiting protrusion, and the first limiting protrusion and the second limiting protrusion are arranged at an interval so that a limiting space is formed between the first limiting protrusion and the second limiting protrusion; The insertion opening (131) is arranged opposite to the limiting space and communicates with the limiting space, so that the partition plate (31) is inserted into the limiting space through the insertion opening (131).

4. The engine water outlet pipe according to claim 3, characterized in that: The partition plate (31) is a first rectangular plate, and the flow cross-sectional shape of the limiting space is similar to the shape of the first rectangular plate; and / or, The first limiting protrusion and the second limiting protrusion both extend along the circumference of the water outlet connecting pipe section (13) to form an annular protrusion.

5. The engine water outlet pipe according to claim 2, characterized in that: The mounting plate (32) is a second rectangular plate, the first side wall (130) is rectangular in shape, and the area of ​​the second rectangular plate is equal to the area of ​​the first side wall (130); and / or, The first side wall (130) is provided with a plurality of first connection holes (132), and the mounting plate (32) is provided with a plurality of second connection holes (320), wherein the plurality of first connection holes (132) and the plurality of second connection holes (320) are arranged in a one-to-one correspondence; the engine water outlet pipe further comprises a plurality of first fasteners (100), and each of the first fasteners (100) is respectively inserted into a corresponding first connection hole (132) and a corresponding second connection hole (320), so that the mounting plate (32) is detachably connected to the first side wall (130).

6. The engine water outlet pipe according to claim 2, characterized in that: The mounting plate (32) is provided with an avoidance hole (321) for avoiding the water return port (102); when the partition plate (31) is located outside the water outlet connecting pipe section (13), the engine water outlet pipe comprises: A first blocking plate (40), the first blocking plate (40) being covered on the avoidance hole (321); A second sealing plate (50), wherein the second sealing plate (50) is disposed on the water intake (101).

7. The engine water outlet pipe according to claim 6, characterized in that: The mounting plate (32) is provided with a plurality of third connection holes (322), the first blocking plate (40) is provided with a plurality of fourth connection holes, the first side wall (130) is provided with a plurality of fifth connection holes (133), the plurality of third connection holes (322) and the plurality of fourth connection holes are connected in a one-to-one correspondence, and the plurality of fourth connection holes and the plurality of fifth connection holes (133) are connected in a one-to-one correspondence; the engine water outlet pipe comprises: A plurality of second fasteners (200) are respectively inserted into the corresponding third connecting hole (322), the fourth connecting hole and the fifth connecting hole (133), so that the first blocking plate (40) can be detachably mounted on the mounting plate (32) and the first side wall (130).

8. The engine water outlet pipe according to any one of claims 2 to 7, characterized in that: The water outlet connecting pipe section (13), the first pipe section (11), the second pipe section (12) and the plurality of connecting pipes (20) are an integrated structure; and / or the cross-sectional area of ​​the water outlet connecting pipe section (13) is greater than the cross-sectional area of ​​the first pipe section (11), and the cross-sectional area of ​​the first pipe section (11) is equal to the cross-sectional area of ​​the second pipe section (12).

9. The engine water outlet pipe according to any one of claims 1 to 7, characterized in that: The mounting plate (32) and the partition plate (31) are an integral structure; and / or, The partition plate (31) and the mounting plate (32) are arranged at an angle of 90°; and / or, The partition plate (31) is located on one side of the mounting plate (32) in the thickness direction.

10. An engine system, characterized in that: include: The engine water outlet pipe according to any one of claims 1 to 9; An engine cylinder comprises a cylinder body and a cylinder head connected to each other, wherein a plurality of connecting pipes (20) of the engine water outlet pipe are all connected to the cylinder head; A retarder is connected to a water inlet (101) and a water return outlet (102) on a water outlet main pipe (10) of the engine water outlet pipe.

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