Engine block structure

Abstract

This utility model provides an engine cylinder block structure, belonging to the field of engine cylinder block heat dissipation technology. It includes a cooling water jacket installed inside the engine cylinder block, with an inlet pipe connected to one end and an outlet pipe connected to the other. The cooling water jacket includes an upper water cooling jacket assembly located in the upper part of the engine cylinder block and a lower water cooling jacket assembly located in the lower part of the engine cylinder block. A tee fitting is provided at the outlet end of the inlet pipe, with one end of the tee fitting connected to the upper water cooling jacket assembly. Multiple water channel holes are provided on the engine cylinder block. This utility model allows for simultaneous and separate injection of coolant into the upper and lower water cooling jacket assemblies through the inlet pipe. Through connecting channels and crossbeam channels, the coolant flows rapidly into the upper and lower connecting arc jackets, ensuring that most areas of the engine cylinder block are in contact with the coolant. This improves the local heat dissipation effect, making the heat dissipation on the engine cylinder block more uniform and enhancing its cooling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of engine cylinder block cooling technology, specifically to engine cylinder block structure. Background Technology

[0002] The engine is a crucial power component of a vehicle. An engine generally consists of a cylinder block and a cylinder head. The ideal thermal operating condition of an engine is as follows: the cylinder head temperature is relatively low, while the cylinder block temperature is relatively high. A lower cylinder head temperature can improve charging efficiency, increase intake volume to promote complete combustion, and increase output power, while a higher cylinder block temperature will reduce friction loss and improve fuel efficiency.

[0003] In related technologies, to ensure that the cylinder head and cylinder block operate at suitable temperatures, a cooling structure is added to the engine for cooling. The engine cooling structure includes a cylinder block cooling water jacket and a cylinder head water jacket. Each cooling water jacket has an inlet at one end and an outlet at the other. The inlet and outlet are connected by a circulation pipe. When cooling the engine, coolant enters through the inlet, directly reaching the cylinder block water jacket, flowing along its channels to cool the cylinder block, and then flowing out of the cylinder block water jacket into the cylinder head water jacket to cool the cylinder head, thus cooling the entire engine block.

[0004] However, most existing cooling water jackets are one-piece structures, with cooling water flowing directly from the inlet to the outlet. This directional flow makes it difficult for certain areas of the engine block to come into contact with the coolant, resulting in uneven cooling of the engine block and reduced cooling efficiency. To address these issues, a new engine block structure is proposed. Utility Model Content

[0005] In view of this, the present invention provides an engine cylinder block structure. The present invention injects coolant into the upper and lower water-cooling jackets simultaneously through the water inlet pipe, and then through the connecting channel and the crossbeam channel, so that the coolant flows quickly into the upper and lower connecting arc jackets, thereby allowing most areas of the engine cylinder block to contact the coolant, thus improving the local heat dissipation effect and making the heat dissipation on the engine cylinder block more uniform, thereby improving its cooling effect.

[0006] To solve the above-mentioned technical problems, this utility model provides an engine cylinder block structure, including a cooling water jacket installed inside the engine cylinder block. One end of the cooling water jacket is connected to an inlet pipe, and the other end is connected to an outlet pipe. The cooling water jacket includes an upper water cooling jacket assembly installed in the upper part of the engine cylinder block and a lower water cooling jacket assembly installed in the lower part of the engine cylinder block. A tee fitting is provided at the outlet end of the inlet pipe. The outlet end of one end of the tee fitting is connected to the upper water cooling jacket assembly, and the outlet end of the other end of the tee fitting is connected to the lower water cooling jacket assembly. Multiple water passage holes are provided on the engine cylinder block. The lower end of each water passage hole is connected to a connecting channel. The lower water cooling jacket assembly and the upper water cooling jacket assembly are respectively connected to the connecting channel. The lower water cooling jacket assembly and the upper water cooling jacket assembly are connected to the outlet pipe through the tee fitting.

[0007] The engine block has multiple cylinder holes for mounting cylinders. The cylinder holes are used to install wear-resistant cylinder liners. Connecting beams are provided between the cylinder holes. The connecting beams are used to strengthen the mechanical load of the engine block and also to install crossbeam channels, thereby connecting the upper arc-shaped sleeves.

[0008] A pair of connecting ports are provided on the connecting beam. The connecting ports are used to extend the contact surface between the coolant in the upper connecting arc jacket and the cylinder, thereby cooling the area of ​​the connecting beam. The cylinder bores are connected through the connecting ports.

[0009] The upper water cooling jacket assembly includes a pair of upper connecting arc jackets surrounding the cylinder bore surface. The two upper connecting arc jackets work together to cool the upper surface of multiple cylinders. The upper connecting arc jackets are connected by multiple hollow arc-shaped jackets. The upper connecting arc jackets are connected by a crossbeam channel. The crossbeam channel is used to connect the two upper connecting arc jackets. The crossbeam channel is located between the two connecting ports.

[0010] The lower water cooling jacket assembly includes a pair of lower connecting arc jackets surrounding the cylinder bore surface. The two lower connecting arc jackets work together to cool the surface of the lower part of multiple cylinders. The lower connecting arc jackets are connected by multiple hollow arc-shaped jackets. The two ends of the lower connecting arc jackets are connected by arc-shaped channels. The arc-shaped channels are hollow inside and are used to connect the two lower connecting arc-shaped jackets.

[0011] Each cylinder bore has a fixed receiving ring on the top inner wall for placing the sealing ring. The receiving ring is used to install the sealing ring on the top of the engine block. Each connecting beam has a relief groove at the top to prevent the sealing ring from being damaged after the cylinder liner is pressed into the cylinder bore.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. The upper and lower water cooling jackets are simultaneously injected with coolant through the inlet pipe, and then the coolant flows quickly into the upper and lower connecting arc jackets through the connecting channel and the crossbeam channel. This allows most areas of the engine block to come into contact with the coolant, thereby improving the local heat dissipation effect and making the heat dissipation on the engine block more uniform, thus improving its cooling effect.

[0014] 2. The connecting channel cools the area of ​​the engine block excluding the cooling water jacket. The crossbeam channel allows the connecting beam between the engine block cylinders to have sufficient indirect contact with the coolant, thus enabling the coolant to flow quickly into the cooling water jacket.

[0015] 3. The receiving ring is used to install the sealing ring on the top of the engine cylinder block. The clearance groove is embedded in the engine cylinder block. The clearance groove is used to prevent the sealing ring from being damaged after the cylinder liner is pressed into the cylinder bore. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified view of part A;

[0018] Figure 3 This is a schematic diagram of the assembly structure of this utility model;

[0019] Figure 4 This is a side sectional view of the present invention;

[0020] Figure 5 This is a front sectional view of the present invention;

[0021] Figure 6 This is a bottom sectional view of the present invention;

[0022] Figure 7 This is a top sectional view of the present invention;

[0023] Figure 8 This is a top sectional view of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 100, engine block; 101, cooling water jacket; 102, inlet pipe; 103, outlet pipe; 104, water passage hole; 105, connecting channel; 200, upper water cooling jacket assembly; 201, tee fitting; 202, upper connecting arc sleeve; 203, crossbeam channel; 300, lower water cooling jacket assembly; 301, lower connecting arc sleeve; 302, arc-shaped channel; 400, cylinder bore; 401, connecting beam; 402, connecting port; 403, receiving ring; 404, clearance groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-8 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0026] like Figure 1-8 As shown: This embodiment provides an engine block structure, including a cooling water jacket 101 disposed within the engine block 100. One end of the cooling water jacket 101 is connected to an inlet pipe 102, and the other end is connected to an outlet pipe 103. The cooling water jacket 101 includes an upper water cooling jacket assembly 200 disposed in the upper part of the engine block 100 and a lower water cooling jacket assembly 300 disposed in the lower part of the engine block 100. A T-joint fitting 201 is provided at the outlet end of the inlet pipe 102. The inlet pipe 102 simultaneously injects liquid into both the upper and lower water cooling jackets. The outlet end of one end of the T-joint fitting 201 is connected to the upper water cooling jacket assembly 200, and the other end of the T-joint fitting 201... The outlet end of the water cooling unit is connected to the lower water cooling jacket assembly 300. The engine block 100 is provided with multiple water channel holes 104, which are deeply embedded inside the engine block 100. The water channel holes 104 are used to connect the engine block 100 structure with the coolant in the engine cover. The lower end of each water channel hole 104 is connected to a connecting channel 105. A pair of bypass pipes are provided on the connecting channel 105. The bypass pipes are connected to the upper water cooling jacket and the lower water cooling jacket respectively. The lower water cooling jacket assembly 300 and the upper water cooling jacket assembly 200 are connected to the connecting channel 105 respectively. The lower water cooling jacket assembly 300 and the upper water cooling jacket assembly 200 are connected to the water outlet pipe 103 through a three-way fitting 201.

[0027] During use, coolant is simultaneously injected into the upper water-cooling jacket 200 and the lower water-cooling jacket 300 through the water inlet pipe 102. Then, through the connecting channel 105 and the crossbeam channel 203, the coolant flows rapidly into the upper connecting arc jacket 202 and the lower connecting arc jacket 301, so that most areas inside the engine block 100 can be in contact with the coolant, thereby improving the local heat dissipation effect and making the heat dissipation on the engine block 100 more uniform, thus improving its cooling effect.

[0028] This embodiment provides an engine cylinder block structure.

[0029] like Figure 1 , 2As shown in Figures 3, 4, and 8: The engine block 100 is provided with multiple cylinder holes 400 for mounting cylinders. The cylinder holes 400 are embedded in the engine block 100 and are circular. The cylinder holes 400 are used to install wear-resistant cylinder liners. A connecting beam 401 is provided between the cylinder holes 400. The connecting beam 401 is integrally cast with the engine block 100. The connecting beam 401 is used to strengthen the mechanical load of the engine block 100. The connecting beam 401 is also used to install the crossbeam channel 203, thereby connecting the upper arc-shaped sleeves. The crossbeam channel 203 is embedded in the engine block 100.

[0030] Its effects are as follows: the cylinder bore 400 is used to install wear-resistant cylinder liners, the connecting beam 401 is used to strengthen the mechanical load of the engine block 100, and the connecting beam 401 is also used to install the crossbeam channel 203, thereby connecting the upper arc-shaped sleeves.

[0031] like Figure 1 , 2 As shown: A pair of connecting ports 402 are provided on the connecting beam 401. The connecting ports 402 are square and penetrate through the left and right beam walls of the connecting beam 401. The connecting ports 402 are used to extend the contact surface between the coolant in the upper connecting arc jacket 202 and the cylinder, thereby cooling the area of ​​the connecting beam 401. The cylinder holes 400 are connected through the connecting ports 402.

[0032] Its effect is as follows: the connecting port 402 is used to extend the contact surface between the coolant in the upper connecting arc jacket 202 and the cylinder, thereby cooling the area of ​​the connecting beam 401.

[0033] like Figure 3 , 4 As shown in Figures 5, 7, and 8: The upper water cooling jacket assembly 200 includes a pair of upper connecting arc jackets 202 surrounding the surface of the cylinder bore 400. The arc-shaped surface of the upper connecting arc jacket 202 is in contact with the cylinder wall. The two upper connecting arc jackets 202 cooperate to cool the surface of the upper part of multiple cylinders. The upper connecting arc jackets 202 are connected by multiple hollow arc-shaped jackets. The upper connecting arc jackets 202 are connected to each other through a crossbeam channel 203. The two ends of the crossbeam channel 203 are integrally connected to the upper connecting arc-shaped jackets on the same side. The crossbeam channel 203 is used to connect the two upper connecting arc jackets. The crossbeam channel 203 is located between two connecting ports 402.

[0034] Its effect is as follows: the two upper arc-shaped jackets 202 work together to cool the surface of the upper part of multiple cylinders, and the crossbeam channel 203 is used to connect the two upper arc-shaped jackets.

[0035] like Figure 3 , 4As shown in Figures 5 and 6: The lower water cooling jacket assembly 300 includes a pair of lower connecting arc jackets 301 surrounding the surface of the cylinder bore 400. The two lower connecting arc jackets 301 cooperate to cool the surface of the lower part of multiple cylinders. The lower connecting arc jackets 301 are in contact with the cylinder wall. The lower connecting arc jackets 301 are connected by multiple hollow arc-shaped jackets. The two ends of the lower connecting arc jackets 301 are connected by an arc-shaped channel 302. The arc-shaped channel 302 is hollow inside and is used to connect the two lower connecting arc jackets. The two ends of the arc-shaped channel 302 are integrally connected with the lower connecting arc jackets on the same side. The distance between the lower connecting arc jackets 301 and the upper connecting arc jacket 202 is 1~4 mm. The connecting arc jackets are connected by multiple arc jackets. After the connection, the flow channel inside the connecting arc jacket forms a wavy shape.

[0036] Its effect is as follows: the two lower connecting arc sleeves 301 work together to cool the surface of the lower part of multiple cylinders, and the arc-shaped channel 302 is used to connect the two lower connecting arc sleeves.

[0037] like Figure 1 , 2 As shown in Figures 4, 7, and 8: Each cylinder bore 400 has a fixed receiving ring 403 for placing a sealing ring at the top inner wall. The receiving ring 403 is welded to the inner wall of the cylinder bore 400 or cast integrally with the engine structure. The receiving ring 403 is used to install the sealing ring at the top of the engine block 100. Each connecting beam 401 has a relief groove 404 at its top. The relief groove 404 is square and is embedded in the engine block 100. The relief groove 404 is used to prevent the sealing ring from being damaged after the cylinder liner is pressed into the cylinder bore 400.

[0038] Its effect is as follows: the receiving ring 403 is used to install the sealing ring on the top of the engine cylinder block 100, and the clearance groove 404 is embedded in the engine cylinder block 100. The clearance groove 404 is used to prevent the sealing ring from being damaged after the cylinder liner is pressed into the cylinder bore 400.

[0039] Working principle: The upper water cooling jacket 200 and the lower water cooling jacket 300 are simultaneously injected with coolant through the inlet pipe 102. The area of ​​the engine block 100 except for the cooling water jacket 101 is cooled through the connecting channel 105. The crossbeam channel 203 allows the connecting beam 401 between the cylinders of the engine block 100 to have sufficient indirect contact with the coolant, so that the coolant flows quickly into the upper connecting arc jacket 202 and the lower connecting arc jacket 301. This ensures that most areas of the engine block 100 are in contact with the coolant, thereby improving the local heat dissipation effect and making the heat dissipation on the engine block 100 more uniform, thus improving its cooling effect. The structure of this cooling water jacket 101 is suitable for 6-cylinder or 4-cylinder engine block structures.

[0040] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An engine block structure, comprising a cooling jacket (101) arranged in an engine block (100), a water inlet pipe (102) arranged in communication with one end of the cooling jacket (101), and a water outlet pipe (103) arranged in communication with the other end of the cooling jacket (101), characterized in that: The cooling water jacket (101) includes an upper water cooling jacket assembly (200) disposed in the upper part of the engine cylinder block (100) and a lower water cooling jacket assembly (300) disposed in the lower part of the engine cylinder block (100). A tee fitting (201) is provided at the outlet end of the water inlet pipe (102). The outlet end of one end of the tee fitting (201) is connected to the upper water cooling jacket assembly (200), and the outlet end of the other end of the tee fitting (201) is connected to the lower water cooling jacket assembly. The assembly (300) is connected, and the engine cylinder block (100) is provided with a plurality of water passage holes (104). The lower end of each water passage hole (104) is connected to a connecting channel (105). The lower water cooling jacket assembly (300) and the upper water cooling jacket assembly (200) are respectively connected to the connecting channel (105). The lower water cooling jacket assembly (300) and the upper water cooling jacket assembly (200) are connected to the water outlet pipe (103) through the tee fitting (201).

2. The engine block structure of claim 1, wherein: The engine block (100) is provided with a plurality of cylinder holes (400) for mounting cylinders, and a connecting beam (401) is provided between the cylinder holes (400).

3. The engine block structure of claim 2, wherein: The connecting beam (401) is provided with a pair of connecting ports (402), and the cylinder holes (400) are connected to each other through the connecting ports (402).

4. The engine block structure as described in claim 3, characterized in that: The upper water cooling jacket assembly (200) includes a pair of upper connecting arc jackets (202) surrounding the surface of the cylinder bore (400). The upper connecting arc jackets (202) are connected by a plurality of hollow arc-shaped jackets. The upper connecting arc jackets (202) are connected to each other through a crossbeam channel (203), which is located between the two connecting ports (402).

5. The engine block structure as described in claim 4, characterized in that: The lower water cooling jacket assembly (300) includes a pair of lower connecting arc sleeves (301) surrounding the surface of the cylinder bore (400). The lower connecting arc sleeves (301) are connected by multiple hollow arc sleeves, and the two ends of the lower connecting arc sleeves (301) are connected by an arc channel (302).

6. The engine block structure as described in claim 5, characterized in that: Each cylinder bore (400) has a receiving ring (403) fixedly installed on the top inner wall for placing a sealing ring, and each connecting beam (401) has a relief groove (404) at its top end.

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