Engine cylinder block, engine, and vehicle

Abstract

A vehicle (1), comprising an engine. The engine comprises a cylinder block (10); a medium inlet (110) of the engine is configured to introduce a cooling medium, and a medium outlet (120) thereof is configured to output the cooling medium; a first flow channel (130) and a second flow channel (140) are arranged on the outer periphery of a cylinder hole (210); the first flow channel (130) and the second flow channel (140) are communicated between the medium inlet (110) and the medium outlet (120) to allow for passage of the cooling medium; and the medium flow resistance of the first flow channel (130) is the same as that of the second flow channel (140).

Description

Engine cylinder block and engine, vehicle

[0001] This application claims priority to Chinese Patent Application No. 202411179044.5, filed on August 26, 2024, entitled "Engine Cylinder Block and Engine, Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to, but is not limited to, the field of engine technology, specifically to an engine cylinder block, an engine, and a vehicle. Background Technology

[0003] In vehicles, coolant is typically used to prevent the engine from overheating or overcooling. Cooling is achieved by introducing a cooling medium into the engine's water jacket. The engine includes the cylinder head water jacket and the cylinder block water jacket, and the water jacket directly cools the cylinder bore and cylinder head.

[0004] In engines of the relevant technology, the inconsistent water flow in the cylinder bores leads to uneven cooling between cylinders, resulting in uneven overall engine cooling and unstable engine operation. Summary of the Invention

[0005] This application provides an engine cylinder block, an engine, and a vehicle, which keeps the water flow rate in each cylinder bore of the cylinder block consistent, so as to achieve uniform cooling between cylinders, thereby at least partially solving the above-mentioned technical problems.

[0006] To achieve the above objectives, according to a first aspect of this application, an engine cylinder block is provided, comprising:

[0007] The cylinder block has cylinder bores;

[0008] The engine cylinder block is also provided with:

[0009] Medium inlet, used to introduce cooling medium;

[0010] Medium outlet, used to output cooling medium;

[0011] A first flow channel and a second flow channel are provided around the outer periphery of the cylinder bore for the cooling medium to flow through;

[0012] The first flow channel and the second flow channel are connected between the medium inlet and the medium outlet; the medium flow resistance of the first flow channel is the same as that of the second flow channel.

[0013] In some embodiments of this application, the ratio of the path length of the first flow channel to the path length of the second flow channel is between 0.9 and 1.1.

[0014] In some embodiments of this application, the path width of the first flow channel is uniformly set; and / or, the path width of the second flow channel is uniformly set.

[0015] In some embodiments of this application, the medium inlet and the medium outlet are formed on the outer periphery of different cylinder bores;

[0016] The first flow channel is configured such that the medium flows from the medium inlet to the medium outlet, and the portion along the outer periphery of the first cylinder bore flows through the outer periphery of the second cylinder bore;

[0017] The second flow channel is configured to flow from the medium inlet to the medium outlet, along another portion of the outer periphery of the first cylinder bore and another portion of the outer periphery of the second cylinder bore.

[0018] In some embodiments of this application, the central axis of the first cylinder bore and the central axis of the second cylinder bore form a reference plane;

[0019] The medium inlet and the medium outlet are located on opposite sides of the reference plane.

[0020] In some embodiments of this application, the central axis of the medium inlet and the central axis of the first cylinder bore form a first plane;

[0021] The central axis of the medium outlet and the central axis of the second cylinder bore form a second plane;

[0022] The first plane is parallel to the second plane.

[0023] In some embodiments of this application, the arc length of the first flow channel is set to be the same as the arc length of the second flow channel.

[0024] In some embodiments of this application, the first flow channel and the second flow channel are configured with the same curvature in portions of the flow channels located on the outer periphery of different cylinder bores.

[0025] In some embodiments of this application, the first flow channel and the second flow channel are smoothly transitioned at the junction of the portions of the flow channels on the outer periphery of the cylinder bore.

[0026] In some embodiments of this application, the arc at the junction of the first flow channel and the second flow channel located on the outer periphery of different cylinder bores is configured to be greater than 90°.

[0027] In some embodiments of this application, the medium inlet has a first introduction direction for the medium to pass through, the first introduction direction being perpendicular to the central axis of the cylinder bore;

[0028] and / or

[0029] The medium outlet has a second inlet direction for the medium to pass through, and the second inlet direction is perpendicular to the central axis of the cylinder bore.

[0030] In some embodiments of this application, the engine cylinder block further includes:

[0031] Inter-cylinder flow channels are constructed between the dissimilar cylinder bores;

[0032] The cylinder flow channel is connected to the first flow channel and the second flow channel, so that a portion of the medium in the first flow channel enters the second flow channel.

[0033] In some embodiments of this application, the engine cylinder block further includes a cylinder head;

[0034] The engine cylinder block is also provided with:

[0035] The third flow channel is formed on the cylinder head and is connected to the medium inlet and the medium outlet.

[0036] According to a second aspect of this application, an engine is provided, comprising:

[0037] The cylinder block is as described above.

[0038] According to a third aspect of this application, a vehicle is provided, comprising:

[0039] The engine is the engine described above.

[0040] The advantage of this application is that it provides a method to ensure uniform cooling of each cylinder bore by optimizing the engine cylinder block.

[0041] More specifically, some embodiments of this application may produce the following specific beneficial effects:

[0042] In the engine cylinder block of this application embodiment, cooling medium is introduced through a medium inlet and output through a medium outlet. A first flow channel and a second flow channel are provided on the outer periphery of the cylinder bore, and the first and second flow channels are connected between the medium inlet and the medium outlet to allow the cooling medium to pass through. The medium flow resistance of the first flow channel is the same as that of the medium flow resistance in the second flow channel. By making the medium flow resistance of the first flow channel the same as that of the medium flow resistance in the second flow channel, the water flow rate of each cylinder bore can be kept consistent, achieving a uniform cooling effect on each cylinder. This ensures that the temperature of each part of the engine is evenly distributed, avoiding excessive temperature gradients in the engine, which could cause uneven thermal expansion and contraction of components, thereby affecting the stability and emission performance of the engine. This ensures the stable operation of the engine and guarantees its normal operation and long-term reliability.

[0043] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0046] Figure 1 is a schematic diagram of the overall structure of the water jacket space provided in an exemplary embodiment of this application;

[0047] Figure 2 is a schematic diagram of the overall structure of the water jacket space from another angle in an exemplary embodiment of this application;

[0048] Figure 3 is a schematic diagram of the medium flow direction in the water jacket space provided in an exemplary embodiment of this application;

[0049] Figure 4 is a top view of the structure shown in Figure 3;

[0050] Figure 5 is a partially enlarged schematic diagram of Figure 4;

[0051] Figure 6 is a front view of the overall structure of the water jacket space provided in an exemplary embodiment of this application;

[0052] Figure 7 is a cross-sectional schematic diagram of the overall structure of the water jacket space provided in an exemplary embodiment of this application;

[0053] Figure 8 is another front view of the overall structure of the water jacket space provided in the exemplary embodiment of this application;

[0054] Figure 9 is a schematic diagram of the structure in which the medium inlet and medium outlet of the water jacket space provided in an exemplary embodiment of this application are respectively located on both sides of the reference plane;

[0055] Figure 10 is a schematic diagram of the orthographic projection of the medium inlet, medium outlet, and cylinder bore onto the reference plane in an exemplary embodiment of this application;

[0056] Figure 11 is a schematic diagram of the media circulation process provided in an exemplary embodiment of this application;

[0057] Figure 12 is a schematic diagram of the structure of the cylinder block forming the engine provided in an exemplary embodiment of this application;

[0058] Figure 13 is a top view of Figure 12;

[0059] Figure 14 is a schematic diagram of the overall vehicle structure provided in an exemplary embodiment of this application;

[0060] Explanation of reference numerals in the attached drawings: 1. Vehicle; 10. Cylinder block; 100. Water jacket space; 110. Medium inlet; 120. Medium outlet; 130. First flow channel; 140. Second flow channel; 150. Inter-cylinder flow channel; 160. Cylinder head water jacket inlet; 170. Cylinder head water jacket outlet; 180. First transition channel; 190. Second transition channel; 200. Cylinder block; 210. Cylinder bore; 211. First cylinder bore; 211a. First section; 211b. Second section; 212. Second cylinder bore; 212a. Third section; 212b. Fourth section; 220. First cylinder body; 230. Second cylinder body; S. Reference plane; a1. Central axis of the first cylinder bore; a4. Central axis of the second cylinder bore; a2. Central axis of the medium inlet; a3. Central axis of the medium outlet; F1. First inlet direction; F2. Second inlet direction. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0062] According to a first aspect of this application, referring to Figures 1 to 13, an engine cylinder block is provided, including a cylinder block 200, and a water jacket space is provided on the cylinder block to cool the cylinder block 200 in order to avoid the engine cylinder block temperature from becoming too high.

[0063] The cylinder block 200 has a cylinder bore 210.

[0064] Referring to Figure 1, the engine cylinder block is also provided with a medium inlet 110, a medium outlet 120, a first flow channel, and a second flow channel.

[0065] The medium inlet 110 is used to introduce the cooling medium, and the medium outlet 120 is used to output the cooling medium.

[0066] The first flow channel 130 and the second flow channel 140 constitute part of the water jacket space of the cylinder block 200.

[0067] A first flow channel 130 and a second flow channel 140 are provided around the outer periphery of the cylinder bore for the cooling medium to flow through. The first flow channel 130 and the second flow channel 140 are connected between the medium inlet 110 and the medium outlet 120, so that after the cooling medium is introduced by the medium inlet 110, part of the medium flows into the first flow channel 130 and part of the medium flows into the second flow channel 140, and continues to flow along the first flow channel 130 and the second flow channel 140 towards the medium outlet 120, and finally flows out of the first flow channel 130 and the second flow channel 140 along the medium outlet 120.

[0068] The flow resistance of the medium flowing in the first flow channel 130 is the same as that of the medium flowing in the second flow channel 140. This ensures that the water flow rate of each cylinder bore is consistent, achieving uniform cooling of each cylinder. This ensures that the temperature of each part of the engine is evenly distributed, avoiding excessive temperature gradients that could cause uneven thermal expansion and contraction of components, thus affecting the stability and emission performance of the engine. This guarantees the stable operation of the engine and ensures its normal operation and long-term reliability.

[0069] The first flow channel 130 and the second flow channel 140 are equivalent to the cylinder water jacket.

[0070] Referring to Figures 12 and 13, the cylinder body 200 includes a first cylinder body 220 and a second cylinder body 230. The first cylinder body 220 has a cylinder bore 210. A medium inlet 110 and a medium outlet 120 are formed on the second cylinder body 230. A first flow channel 130 and a second flow channel 140 are formed between the first cylinder body 220 and the second cylinder body 230. The portion surrounding the cylinder bore 210 serves as the outer periphery of the cylinder bore.

[0071] The first flow channel 130 and the second flow channel 140 are arranged around the cylinder bore 210.

[0072] In some embodiments, in order to further ensure uniform cooling of each cylinder, the ratio of the path length of the first flow channel 130 to the path length of the second flow channel 140 can be between 0.9 and 1.1.

[0073] This achieves the effect of making the path lengths of the first flow channel 130 and the second flow channel 140 approximately the same, thereby further ensuring that the flow resistance of the medium flowing through the first flow channel 130 is the same as that of the medium flowing through the second flow channel 140, and further improving the consistency of water flow in each cylinder hole.

[0074] In some embodiments, a medium inlet 110 and a medium outlet 120 are formed on the outer periphery of different cylinder bores, and at least two sections of a first flow channel are located on the outer periphery of different cylinder bores, and at least two sections of a second flow channel are located on the outer periphery of different cylinder bores.

[0075] Specifically, the medium inlet 110 and the medium outlet 120 are formed on the outer periphery of different cylinder bores. For example, the medium inlet 110 and the medium outlet 120 are arranged in a group of two cylinder bores. For example, the left cylinder bore is defined as the first cylinder bore 211 and the right cylinder bore is defined as the second cylinder bore 212. The medium inlet 110 is located on the outer periphery of the first cylinder bore and the medium outlet 120 is located on the outer periphery of the second cylinder bore.

[0076] The first flow channel 130 is configured such that a portion of the medium flows from the medium inlet 110 along the outer periphery of the first cylinder bore, through a portion of the outer periphery of the second cylinder bore, to the medium outlet 120. The second flow channel 140 is configured such that another portion of the medium flows from the medium inlet 110 along the outer periphery of the first cylinder bore, through another portion of the outer periphery of the second cylinder bore, to the medium outlet 120, so that the medium flows along the first flow channel 130 and the second flow channel 140 and simultaneously cools the first and second cylinder bores.

[0077] Referring to Figures 2 to 4, the outer periphery of the first cylinder bore 211 includes a first segment 211a and a second segment 211b, the outer periphery of the second cylinder bore 212 includes a third segment 212a and a fourth segment 212b, the first flow channel 130 is formed by the second segment 211b and the fourth segment 212b, and the second flow channel 140 is formed by the first segment 211a and the third segment 212a.

[0078] The medium inlet 110 is located at the intersection of the first section 211a and the second section 211b, and the medium outlet 120 is located at the intersection of the third section 212a and the fourth section 212b. After the medium is introduced by the medium inlet 110, it is split at the intersection of the first section 211a and the third section 212a. Part of the medium flows through the first section 211a to the left and enters the third section 212a and flows to the medium outlet 120. Part of the medium flows through the second section 211b to the right and enters the fourth section 212b and flows to the medium outlet 120. The medium flowing from the third section 212a and the medium flowing from the fourth section 212b merge at the medium outlet 120. This completes the process of the medium flowing from the medium inlet 110 along the first flow channel 130 and the second flow channel 140 to the medium outlet 120. At the same time, since the medium flow resistance of each section is set to be the same, uniform cooling of the cylinder bore is achieved.

[0079] The first segment 211a and the fourth segment 212b are roughly the same length, and the second segment 211b and the third segment 212a are roughly the same length.

[0080] The first segment 211a and the fourth segment 212b are set in an arc shape, and their arcs are set to the same degree. The second segment 211b and the third segment 212a are set in an arc shape, and their arcs are set to the same degree.

[0081] In some embodiments, the central axis a1 of the first cylinder bore 211 and the central axis a4 of the second cylinder bore 212 form a reference plane S. The medium inlet 110 and the medium outlet 120 are respectively located on both sides of the reference plane S. This allows the medium inlet 110 and the medium outlet 120 to be arranged diagonally, and the cylinder water jacket inlet and outlet medium outlet to be arranged diagonally, respectively located on the outer sides of the cylinder bore water jacket on the left and right sides. This ensures the uniformity of cooling in the circumferential direction of the two cylinders. Moreover, this arrangement is simple, easy to form, and will not have a significant impact on the structural strength of the cylinder bore.

[0082] In some examples, referring to FIG10, the orthographic projection S1 of the medium inlet 110 along its central axis a2 and the orthographic projection S2 of the medium outlet 120 along its central axis a3 both fall within the orthographic projection S3 of the first cylinder bore and the second cylinder bore along the central axis a2 of the medium inlet 110.

[0083] In some examples, referring to Figure 10, the area of ​​the orthographic projection S1 of the medium inlet 110 along its central axis a2 can be smaller than the area of ​​the orthographic projection S2 of the medium outlet 120 along its central axis a3.

[0084] In some embodiments, referring to FIG2, in order to further ensure the uniformity of the flow rate of the first flow channel 130 and the second flow channel 140, the central axis a2 of the medium inlet 110 and the central axis a3 of the medium outlet 120 can be arranged parallel to each other.

[0085] In some embodiments, the arc length of the first flow channel 130 is set to be the same as the arc length of the second flow channel 140, the first flow channel 130 and the second flow channel 140 are set to be arc-shaped and the arc lengths of the two are set to be the same, and the arc lengths of the flow channels of the first flow channel 130 and the second flow channel 140 located on the outer periphery of different cylinder bores are set to be the same, thereby ensuring that the first flow channel 130 and the second flow channel 140 are set to be completely identical, and ensuring that the medium flow resistance in the first flow channel 130 and the second flow channel 140 is completely identical.

[0086] Referring to Figure 4, the arc length and radian of the first segment 211a and the fourth segment 212b are set to be the same, and the arc length and radian of the second segment 211b and the third segment 212a are set to be the same.

[0087] Referring to Figure 4, since all cylinder bores are set to be circular, the first flow channel 130 and the second flow channel 140, as flow channels formed on the outer periphery of the cylinder bores, are also set to be circular when their outlines are projected along the central axis.

[0088] At the same time, the path widths of the first flow channel 130 and the second flow channel 140 are evenly set, that is, the first segment 211a and the second segment 211b are evenly set with the third segment 212a and the fourth segment 212b.

[0089] Referring to Figure 4, the path widths of the first segment 211a and the second segment 211b are set to be exactly the same as those of the third segment 212a and the fourth segment 212b. Of course, they can also be set differently. It is only necessary to set the first segment 211a and the second segment 211b to be the same, the third segment 212a and the fourth segment 212b to be the same, and the first segment 211a and the third segment 212a to be different.

[0090] In some embodiments, the junction of the first flow channel 130 and the second flow channel 140 located on the outer periphery of different cylinder bores 210 is smoothly transitioned to ensure that the flow velocity of the medium does not change too abruptly when it flows through the junction, thus ensuring the flow resistance of the medium.

[0091] Specifically, referring to Figure 4, the junction between the second segment 211b and the fourth segment 212b is set with a smooth transition, and the first segment 211a and the third segment 212a are also set with a smooth transition.

[0092] In some embodiments, referring to FIG5, the arc at the junction of the first flow channel 130 and the second flow channel 140 located on the outer periphery of different cylinder bores is configured to be greater than 90°.

[0093] Specifically, referring to Figure 5, the arc at the intersection of the second segment 211b and the fourth segment 212b is set to be greater than 90 degrees, and the arc at the intersection of the first segment 211a and the third segment 212a is set to be greater than 90 degrees.

[0094] In some embodiments, the medium inlet 110 has a first inlet direction F1 through which the medium passes, the first inlet direction F1 being perpendicular to the central axis a1 of the first cylinder bore 211, and the medium outlet 120 has a second inlet direction F2 through which the medium passes, the second inlet direction F2 being perpendicular to the central axis a2 of the second cylinder bore 212. By setting both the first inlet direction F1 and the second inlet direction F2 perpendicular to the central axis of the cylinder bore 210, the uniformity of the flow rate of the first flow channel 130 and the second flow channel 140 is achieved, further ensuring the uniformity of the cooling effect of the medium on the cylinder bore 210.

[0095] Referring to Figures 6 to 8, specifically, both the medium inlet 110 and the medium outlet 120 can be constructed as circles, and the cross-sections of the medium inlet 110 and the medium outlet 120 are planar. The central axis a2 of the medium inlet 110 is set perpendicular to the central axis of the cylinder bore 210, thereby achieving that the first introduction direction F1 is set perpendicular to the central axis a1 of the first cylinder bore 211; the central axis a3 of the medium outlet 120 is set perpendicular to the central axis of the cylinder bore, thereby achieving that the second introduction direction F2 is set perpendicular to the central axis a4 of the second cylinder bore 212.

[0096] This arrangement ensures that the central axis a2 of the medium inlet 110 and the central axis a3 of the medium outlet 120 are both perpendicular to the central axis of the cylinder bore, thereby making the first introduction direction F1 and the second introduction direction F2 perpendicular to the central axis of the cylinder bore. This achieves uniformity of flow rate in the first flow channel 130 and the second flow channel 140, further ensuring uniformity of the cooling effect of the medium on the cylinder bore 210.

[0097] In some embodiments, referring to FIG3, the engine cylinder block is further provided with an inter-cylinder flow passage 150, which is constructed between different cylinder bores 210, that is, the inter-cylinder flow passage 150 is disposed between the first cylinder bore 211 and the second cylinder bore 212.

[0098] The cylinder flow channel 150 is connected to the first flow channel 130 and the second flow channel 140 so that a portion of the medium in the first flow channel 130 enters the second flow channel 140.

[0099] Referring to Figure 5, the section between the end of the first segment 211a and the beginning of the fourth segment 212b is designated as the inter-cylinder flow channel 150. Part of the medium in the first flow channel 130 will enter the second flow channel 140, which can also cool the part between the two cylinder bores, further ensuring the cooling effect of the cylinder bores.

[0100] The inter-cylinder flow channels 150 can be evenly arranged, and the width of the inter-cylinder flow channels 150 is set to be the same as the width of the first flow channel 130 and the second flow channel 140.

[0101] In some embodiments, the cylinder block also includes a cylinder head (not shown in the figures).

[0102] The engine cylinder block is also provided with a third flow channel (not shown in the figure), which is formed on the cylinder head and is connected to the medium inlet 110 and the medium outlet 120. The third flow channel serves as the cylinder head water jacket space, and cooling medium is introduced into the third flow channel to cool the cylinder head.

[0103] The medium received from the medium inlet 110 via the third channel can be used to cool the cylinder head, and then flows out through the third channel along the medium outlet 120, further ensuring the cooling uniformity of the overall engine structure.

[0104] Referring to Figures 1 and 2, the third flow channel has one cylinder head water jacket inlet 160 or two cylinder head water jacket inlets 160, which are connected to the medium inlet 110 to receive the cooling medium delivered from the medium inlet 110.

[0105] The third flow channel also has one cylinder head water jacket outlet 170, or two cylinder head water jacket outlets 170, which are connected to the medium outlet 120 to receive the cooling medium output from the third flow channel.

[0106] Referring to Figures 6 to 8, the vertical height of the inter-cylinder passage is set to L3 along the axial direction of the central axis of the cylinder bore.

[0107] Along the axial direction of the central axis of the cylinder bore, there is a first connecting channel between the medium inlet 110 and the outer periphery of the first cylinder bore, and there is a first transition channel 180 between the first connecting channel and the outer periphery of the first cylinder bore, the height of the first transition channel 180 being set to L2.

[0108] Along the axial direction of the central axis of the cylinder bore, there is a second connecting channel between the medium outlet 120 and the outer periphery of the second cylinder bore, and there is a second transition channel 190 between the second connecting channel and the outer periphery of the second cylinder bore, the height of the second transition channel 190 being set to L3.

[0109] Therefore: L1 is less than L2, and L2 is equal to L3.

[0110] Referring to Figures 5 to 7, the vertical height of the first connecting channel is less than the vertical height of the second connecting channel.

[0111] According to a second aspect of this application, an engine is provided, including a cylinder block 10. Since the engine uses the aforementioned cylinder block 10, it has all the beneficial effects of the aforementioned cylinder block 10, which will not be repeated here. Furthermore, the engine has excellent cooling effect and stable performance.

[0112] The first flow channel 130, the second flow channel 140, and the inter-cylinder flow channel 150 are the flow channels formed between the outer periphery of the cylinder bore and the body of the cylinder block, and are defined as cylinder block water jackets. Similarly, the third flow channel is the flow channel formed on the cylinder head, and is defined as cylinder head water jacket.

[0113] The water pump delivers the cooling medium from the heat dissipation module and then pumps it from the medium inlet 110 into the cylinder block water jacket and cylinder head water jacket, and finally it flows out from the medium outlet 120 along the engine outlet.

[0114] According to a fourth aspect of this application, referring to FIG14, a vehicle 1 is provided, including an engine, the engine being the engine described above.

[0115] Since vehicle 1 uses the aforementioned engine, it has all the beneficial effects of the aforementioned engine, which will not be repeated here.

[0116] The vehicle 1 can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc.

[0117] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0118] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0119] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0120] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Although the descriptions of each embodiment in this application have different focuses, and the parts not described in detail in a certain embodiment can be referred to the relevant embodiments in other embodiments, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An engine cylinder block (200), comprising: The cylinder block (200) has cylinder bores (211, 212); The engine cylinder block (200) is provided with: Medium inlet (110) is used to introduce cooling medium; Medium outlet (120) is used to output cooling medium; A first flow channel (130) and a second flow channel (140) are provided around the outer periphery of the cylinder bores (211, 212) for the passage of cooling medium; The first flow channel (130) and the second flow channel (140) are respectively connected between the medium inlet (110) and the medium outlet (120); the medium flow resistance of the first flow channel (130) is the same as the medium flow resistance in the second flow channel (140).

2. The engine cylinder block (200) according to claim 1, wherein, The ratio of the path length of the first flow channel (130) to the path length of the second flow channel (140) is between 0.9 and 1.

1.

3. The engine cylinder block (200) according to claim 1 or 2, wherein, The path width of the first flow channel (130) is uniformly set; and / or, the path width of the second flow channel (140) is uniformly set.

4. The engine cylinder block (200) according to any one of claims 1 to 3, wherein, The cylinder bore includes: a first cylinder bore (211) and a second cylinder bore (212); The medium inlet (110) and the medium outlet (120) are formed on the outer periphery of the dissimilar cylinder bores; The first flow channel (130) is configured to flow from the medium inlet (110) to the medium outlet (120), and the portion along the outer periphery of the first cylinder bore (211) flows through the portion along the outer periphery of the second cylinder bore (212); The second flow channel (140) is configured to flow from the medium inlet (110) to the medium outlet (120), along another portion of the outer periphery of the first cylinder bore (211) and another portion of the outer periphery of the second cylinder bore (212).

5. The engine cylinder block (200) according to claim 4, wherein, The central axis of the first cylinder bore (211) and the central axis of the second cylinder bore (212) form a reference plane (S); The medium inlet (110) and the medium outlet (120) are respectively located on both sides of the reference plane (S).

6. The engine cylinder block (200) according to any one of claims 3 to 5, wherein, The central axis of the medium inlet (110) is parallel to the central axis of the medium outlet (120).

7. The engine cylinder block (200) according to any one of claims 1 to 5, wherein, The arc length of the first flow channel (130) is set to be the same as the arc length of the second flow channel (140).

8. The engine cylinder block (200) according to claim 7, wherein, The first flow channel (130) and the second flow channel (140) are located on the outer periphery of different cylinder bores and have the same curvature.

9. The engine cylinder block (200) according to any one of claims 1 to 5, wherein, The first flow channel (130) and the second flow channel (140) are smoothly transitioned at the intersection of the flow channels on the outer periphery of the cylinder bore.

10. The engine cylinder block (200) according to claim 9, wherein, The arc at the junction of the first flow channel (130) and the second flow channel (140) located on the outer periphery of the cylinder bore is configured to be greater than 90°.

11. The engine cylinder block (200) according to any one of claims 1 to 5, wherein, The medium inlet (110) has a first introduction direction (F1) for the medium to pass through, and the first introduction direction (F1) is perpendicular to the central axis of the cylinder bore. and / or The medium outlet (120) has a second inlet direction (F2) for the medium to pass through, and the second inlet direction (F2) is perpendicular to the central axis of the cylinder bore.

12. The engine cylinder block (200) according to any one of claims 1 to 5, wherein, The engine cylinder block also includes: Inter-cylinder flow channels (150) are constructed between dissimilar cylinder bores; The cylinder flow channel (150) is connected to the first flow channel (130) and the second flow channel (140) so that a portion of the medium in the first flow channel (130) enters the second flow channel (140).

13. The engine cylinder block (200) according to any one of claims 1 to 5, wherein, The engine cylinder block also includes: The cylinder head is connected to the cylinder block (200); The engine cylinder block (200) is also provided with: A third flow channel is formed on the cylinder head and is connected to the medium inlet (110) and the medium outlet (120).

14. An engine comprising: Cylinder block (200), wherein the cylinder block (200) is the cylinder block (200) as described in any one of claims 1 to 13.

15. A vehicle (1), comprising: An engine, which is the engine as described in claim 14; or includes an engine cylinder block (200) as described in any one of claims 1 to 13.

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