Engine block and engine
By setting cooling channels and reinforcements on the outside of the engine cylinder bore, the problems of cylinder block deformation and heat dissipation were solved, achieving high-strength support and cooling effect for the cylinder bore, and optimizing the structure and performance of the engine cylinder block.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREAT WALL MOTOR CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-02
AI Technical Summary
Existing engine cylinder blocks are prone to deformation under high explosion pressure. Increasing the cylinder bore wall thickness will affect the heat dissipation requirements and result in insufficient cooling capacity.
Cooling channels are provided on the outside of the engine cylinder bore, and a reinforcing section is connected between the inner and outer walls to form a support structure. This ensures the accuracy of the piston guide channel and the flow of coolant, and enhances the strength of the cylinder bore structure. At the same time, inclined surfaces and partition grooves are provided in the cooling channels to reduce structural stress.
It effectively reduces the possibility of cylinder bore deformation, maintains heat dissipation performance, improves the structural strength and cooling capacity reliability of the cylinder block, reduces friction and wear, optimizes the casting process, and reduces costs.
Smart Images
Figure CN224315075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine technology, and in particular to an engine block and an engine having the engine block. Background Technology
[0002] To reduce cylinder bore deformation caused by high explosion pressure, existing engine blocks typically employ a solution of increasing the wall thickness at the cylinder bore. However, this increased wall thickness affects heat dissipation from the cylinder bore, requiring higher water jacket cooling capacity, thus leaving room for improvement. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an engine block that reduces the possibility of engine cylinder bore deformation, eliminates the need to increase the wall thickness at the engine cylinder bore, does not affect heat dissipation at the engine cylinder bore, and reduces the requirements for cooling capacity.
[0004] According to an embodiment of the present invention, an engine cylinder block is formed in the engine cylinder block, and the engine cylinder block has a cooling channel located outside the engine cylinder hole. The cooling channel has an inlet and an outlet. The cooling channel has an inner wall close to the engine cylinder hole and an outer wall away from the engine cylinder hole. The inner wall and the outer wall are distributed opposite to each other, and a reinforcing part is connected between the inner wall and the outer wall.
[0005] According to the embodiment of this utility model, the engine cylinder block provides a precise guiding channel for the piston by setting an engine cylinder bore, ensuring that the piston maintains a straight trajectory during reciprocating motion, reducing friction and wear caused by lateral forces. A cooling channel is formed on the outer side of the engine cylinder bore, allowing coolant to flow inside to cool the engine cylinder block. At the same time, a reinforcing part is connected between the inner and outer walls of the cooling channel, so that the reinforcing part can support the engine cylinder bore from the outside of the engine cylinder bore, which can enhance the structural strength of the engine cylinder block at the engine cylinder bore, reduce the possibility of engine cylinder bore deformation, and does not require increasing the wall thickness at the engine cylinder bore, so it will not affect the heat dissipation at the engine cylinder bore, and can reduce the requirements for cooling capacity.
[0006] According to some embodiments of the present invention, the engine cylinder block has at least one engine cylinder bore, and each engine cylinder bore is provided with at least two sets of reinforcing parts, the at least two sets of reinforcing parts being spaced apart in the circumferential direction of the engine cylinder bore.
[0007] According to some embodiments of the present invention, in an engine cylinder block, at least two of the two sets of reinforcing parts are radially opposite each other in the engine cylinder bore.
[0008] According to some embodiments of the present invention, the engine cylinder block is provided with a reinforcing support portion on the outer side of the engine cylinder block. The reinforcing support portion protrudes from the outer side of the engine cylinder block, and the reinforcing portion is distributed radially opposite to the inner side of the reinforcing support portion along the engine cylinder bore.
[0009] According to some embodiments of the present invention, the engine cylinder block includes a reinforcing support portion comprising a first reinforcing protrusion and a second reinforcing protrusion that are connected in a cross-shaped manner. Both the first reinforcing protrusion and the second reinforcing protrusion are constructed as elongated strips, and the reinforcing portion is distributed directly on the inner side of the intersection of the first reinforcing protrusion and the second reinforcing protrusion.
[0010] According to some embodiments of the present invention, the engine block of the cooling channel is provided with a connecting port at the top, the connecting port being used to communicate with the channel inside the cylinder head, the connecting port having a first inclined surface near the inner side of the engine cylinder bore, the first inclined surface being constructed to extend obliquely from bottom to top and from the inside to the outside; and / or, the bottom of the cooling channel having a second inclined surface away from the inner wall of the engine cylinder bore, the second inclined surface being constructed to extend obliquely from top to bottom and from the outside to the inside.
[0011] According to some embodiments of the present invention, the engine cylinder block is further provided with a flow channel communication port communicating with the cooling flow channel, the flow channel communication port being used to communicate with an external flow path; an annular protrusion is formed on the inner side of the cooling flow channel, the annular protrusion being disposed around the inner end of the flow channel communication port, and a third inclined surface is formed on the inner side of the annular protrusion surrounding the flow channel communication port, the inner diameter of the third inclined surface being constructed to gradually increase from the flow channel communication port toward the interior of the cooling flow channel.
[0012] According to some embodiments of the present invention, the engine cylinder block of the third inclined surface is provided with at least two partition grooves, and the at least two partition grooves are distributed circumferentially on the third inclined surface.
[0013] According to some embodiments of the present invention, the engine cylinder block has multiple engine cylinder bores, which are spaced apart and distributed in the engine cylinder block, and the reinforcing portion is provided on the outer side of each engine cylinder bore.
[0014] This utility model also proposes an engine.
[0015] The engine according to the present invention includes the engine block described in any of the above embodiments.
[0016] The engine and the engine block described above have the same advantages over the prior art, which will not be elaborated here.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a partial cross-sectional view of the engine cylinder block according to an embodiment of the present utility model. Figure 1 ;
[0020] Figure 2 This is a partial schematic diagram of the engine cylinder block according to an embodiment of the present utility model;
[0021] Figure 3 This is a partial cross-sectional view of the engine cylinder block according to an embodiment of the present utility model. Figure 2 ;
[0022] Figure 4 This is a structural schematic diagram of the engine cylinder block according to an embodiment of the present utility model;
[0023] Figure 5 yes Figure 4 Schematic diagram of the cross section at point AA;
[0024] Figure 6 This is a cross-sectional view of the engine cylinder block according to an embodiment of the present utility model;
[0025] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;
[0026] Figure 8 This is a schematic diagram of the structure of a sand core according to an embodiment of the present utility model.
[0027] Figure label:
[0028] Engine block 100,
[0029] Engine cylinder bore 1,
[0030] Cooling channel 2, water inlet 21, inner wall 22, outer wall 23, connecting outlet 24, first inclined surface 25, second inclined surface 26, annular protrusion 27, channel connecting opening 28, third inclined surface 29, partition groove 30.
[0031] Reinforcing part 3, reinforcing support part 4, first reinforcing protrusion 5, second reinforcing protrusion 6, cylinder head bolt hole 7.
[0032] Sand core 101. Detailed Implementation
[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0035] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.
[0036] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.
[0037] The following is for reference. Figures 1-8 The engine block 100 according to the present invention can reduce the possibility of deformation of the engine cylinder bore 1, and does not require increasing the wall thickness at the engine cylinder bore 1, thus not affecting the heat dissipation at the engine cylinder bore 1 and reducing the requirements for cooling capacity.
[0038] like Figures 1-8As shown, according to an embodiment of the present invention, an engine cylinder block 100 has an engine cylinder bore 1 formed therein. The engine cylinder block 100 has a cooling channel 2 located outside the engine cylinder bore 1. The cooling channel 2 has an inlet 21 and an outlet. The cooling channel 2 has an inner wall 22 close to the engine cylinder bore 1 and an outer wall 23 away from the engine cylinder bore 1. The inner wall 22 and the outer wall 23 are distributed opposite to each other. A reinforcing part 3 connects the inner wall 22 and the outer wall 23.
[0039] Specifically, the engine block 100 is the core structural component of the engine, and its function is directly related to the engine's performance, reliability, and lifespan. The engine block 100 has an engine cylinder bore 1, which provides a precise guide channel for the piston, ensuring that the piston maintains a straight trajectory during reciprocating motion and reducing friction and wear caused by lateral forces. Forming the engine cylinder bore 1 in the engine block 100 allows the engine block 100 to provide rigid support for the engine cylinder bore 1, thereby improving the reliability of the engine cylinder bore 1's operation.
[0040] Meanwhile, the engine block 100 has a cooling channel 2, which allows coolant to flow within it. During this flow, coolant exchanges heat with the engine block 100, cooling it and ensuring the engine always operates within its optimal temperature range. This prevents performance degradation or damage caused by overheating. Furthermore, the cooling channel 2 is positioned outside the engine cylinder bore 1, allowing coolant to flow outside the bore 1 for cooling the engine block 100. This avoids interference between the cooling channel 2 and the piston's movement trajectory, preventing reduced engine reliability. The coolant can be water or similar.
[0041] Furthermore, the cooling channel 2 has an inlet 21 and an outlet, which are connected to the cooling channel 2 respectively. This allows external coolant to be introduced into the cooling channel 2 through the inlet 21, or the coolant in the cooling channel 2 to be discharged through the outlet. In actual design, the inlet 21 and the outlet can be connected to the water tank respectively, so that the coolant in the water tank can enter the cooling channel 2 through the inlet 21, flow in the cooling channel 2 and exchange heat with the engine block 100, and then enter the water tank through the outlet. This can realize the circulation of coolant and improve the reliability of cooling the engine block 100.
[0042] The cooling channel 2 has an inner wall 22 close to the engine cylinder bore 1 and an outer wall 23 away from the engine block 100. The inner wall 22 and the outer wall 23 are distributed opposite to each other, that is, the inner wall 22 is located inside the cooling channel 2 and the outer wall 23 is located outside the cooling channel 2. The inner wall 22 and the outer wall 23 are a certain distance apart along the radial direction of the engine block 100, so that the inner wall 22 and the outer wall 23 can jointly define the cooling channel 2. A reinforcing part 3 is connected between the inner wall 22 and the outer wall 23, that is, the reinforcing part 3 is formed on the outer side of the engine cylinder bore 1, which can support the engine cylinder bore 1 from the outside of the engine cylinder bore 1, which can enhance the structural strength of the engine block 100 at the engine cylinder bore 1, avoid deformation at the engine cylinder bore 1, and reduce the possibility of deformation of the engine cylinder bore 1.
[0043] Furthermore, by setting the reinforcing part 3 to reduce the possibility of deformation of the engine cylinder bore 1, it is not necessary to increase the wall thickness of the engine cylinder bore 1, which is beneficial to the engine's lightweight and compactness, and will not affect the heat dissipation of the engine cylinder bore 1, thus reducing the requirements for cooling capacity.
[0044] And, it should be noted that, such as Figure 1 As shown, at least a portion of the cooling channel 2 is located above the reinforcing part 3, which can be used to cool the engine cylinder bore 1. In practice, the extension direction of the cooling channel 2 can also be adjusted according to the cooling requirements of the engine cylinder bore 1, so as to adjust the flow direction and flow rate of the coolant, so as to make the temperature of the engine cylinder bore 1 more uniform.
[0045] According to the embodiment of the present invention, the engine cylinder block 100 provides a precise guiding channel for the piston by setting the engine cylinder bore 1, ensuring that the piston maintains a straight trajectory during reciprocating motion, reducing friction and wear caused by lateral forces. A cooling channel 2 is formed on the outer side of the engine cylinder bore 1, allowing coolant to flow inside it to cool the engine cylinder block 100. At the same time, a reinforcing part 3 is connected between the inner wall 22 and the outer wall 23 of the cooling channel 2, so that the reinforcing part 3 can support the engine cylinder bore 1 from the outside of the engine cylinder bore 1, which can enhance the structural strength of the engine cylinder block 100 at the engine cylinder bore 1, reduce the possibility of deformation of the engine cylinder bore 1, and does not require increasing the wall thickness at the engine cylinder bore 1, thus not affecting the heat dissipation at the engine cylinder bore 1 and reducing the requirements for cooling capacity.
[0046] In some embodiments, the engine cylinder bore 1 is provided with at least one, and each engine cylinder bore 1 is provided with at least two sets of reinforcing parts 3, and the at least two sets of reinforcing parts 3 are distributed circumferentially in the engine cylinder bore 1.
[0047] Specifically, the engine cylinder bore 1 is used to provide a precise guide channel for the piston. The engine cylinder bore 1 is set as at least one, that is, the number of engine cylinder bore 1 can be one, two, three or more, so that at least one engine cylinder bore 1 can simultaneously provide a guide channel for at least one piston. Thus, the engine block 100 can be used for a single-cylinder or multi-cylinder engine. The reinforcing part 3 is used to support the engine cylinder bore 1 from the outside. Each engine cylinder bore 1 is provided with at least two sets of reinforcing parts 3, that is, the number of reinforcing parts 3 corresponding to each engine cylinder bore 1 can be two, three or more sets. Thus, the engine cylinder bore 1 can be supported by at least two sets of reinforcing parts 3, which can improve the reliability of supporting the engine cylinder bore 1, that is, improve the reliability of avoiding deformation of the engine cylinder bore 1.
[0048] Furthermore, by distributing at least two sets of reinforcing parts 3 spaced apart in the circumferential direction of the engine cylinder bore 1, the at least two sets of reinforcing parts 3 can be distributed sequentially along the circumferential direction of the engine cylinder bore 1, and there is a certain distance between each pair of adjacent reinforcing parts 3. Thus, the engine cylinder bore 1 can be supported by at least two sets of reinforcing parts 3 at at least two positions simultaneously, thereby improving the stability of the support for the engine cylinder bore 1.
[0049] In some embodiments, two of the at least two sets of reinforcing parts 3 are radially opposite each other in the engine cylinder bore 1.
[0050] Specifically, each engine cylinder bore 1 is provided with at least two sets of reinforcing parts 3, and the at least two sets of reinforcing parts 3 are spaced apart in the circumferential direction of the engine cylinder bore 1, which can improve the reliability and stability of supporting the engine cylinder bore 1. Furthermore, two of the at least two sets of reinforcing parts 3 are arranged facing each other in the radial direction of the engine cylinder bore 1, so that the two sets of reinforcing parts 3 can simultaneously support the engine cylinder bore 1 at two opposite positions in the radial direction of the engine cylinder bore 1. This allows the engine cylinder bore 1 to be subjected to force balance under the action of the two sets of reinforcing parts 3, which can further improve the stability of supporting the engine cylinder bore 1.
[0051] It should be noted that, in actual design, the two sets of reinforcing parts 3 that are directly opposite each other can be set along the deformation trend of the engine cylinder bore 1 to effectively reduce the possibility of deformation of the engine cylinder bore 1.
[0052] In such Figure 1In the embodiment shown, each engine cylinder bore 1 is provided with two sets of reinforcing parts 3, and the two sets of reinforcing parts 3 are distributed circumferentially in the engine cylinder bore 1. This means that the two sets of reinforcing parts 3 can support the engine cylinder bore 1 at two positions at the same time, which can improve the reliability and stability of supporting the engine cylinder bore 1. In particular, the two sets of reinforcing parts 3 are distributed facing each other in the radial direction of the engine cylinder bore 1, which can further improve the stability of supporting the engine cylinder bore 1.
[0053] In some embodiments, a reinforcing support portion 4 is provided on the outer side of the engine cylinder block 100. The reinforcing support portion 4 protrudes from the outer side of the engine cylinder block 100, and the reinforcing portions 3 are distributed radially opposite to each other on the inner side of the reinforcing support portion 4.
[0054] Specifically, a reinforcing support 4 is provided on the outer side of the engine cylinder block 100. The reinforcing support 4 is used to improve the structural strength of the engine cylinder block 100. The reinforcing support 4 protrudes from the outer side of the engine cylinder block 100, so that the reinforcing support 4 can extend towards the outer side of the engine cylinder block 100, so that the reinforcing support 4 can have a certain thickness, which is beneficial to improving the structural strength of the reinforcing support 4, thereby improving the structural strength of the engine cylinder block 100. At the same time, the reinforcing part 3 is distributed radially opposite to the inner side of the reinforcing support 4 along the engine cylinder bore 1. The reinforcing part 3 and the reinforcing support 4 are distributed radially along the engine cylinder bore 1, so that the reinforcing part 3 and the reinforcing support 4 can simultaneously improve the structural strength of the engine cylinder block 100 along the radial direction of the engine cylinder bore 1, which can further improve the reliability of supporting the engine cylinder bore 1 and effectively reduce the possibility of deformation of the engine cylinder bore 1.
[0055] In some embodiments, the reinforcing support 4 includes a first reinforcing protrusion 5 and a second reinforcing protrusion 6 that are connected in a cross-shaped manner. Both the first reinforcing protrusion 5 and the second reinforcing protrusion 6 are constructed as elongated strips, and the reinforcing part 3 is distributed on the inner side of the intersection of the first reinforcing protrusion 5 and the second reinforcing protrusion 6.
[0056] Specifically, the reinforced support 4 is used to improve the structural strength of the engine block 100, such as... Figure 2 As shown, the reinforcing support 4 includes a first reinforcing protrusion 5 and a second reinforcing protrusion 6. Both the first reinforcing protrusion 5 and the second reinforcing protrusion 6 can be used to improve the structural strength of the engine block 100. Furthermore, by cross-connecting the first reinforcing protrusion 5 and the second reinforcing protrusion 6, the structural strength and operational reliability of both can be improved. Moreover, by constructing both the first reinforcing protrusion 5 and the second reinforcing protrusion 6 as elongated strips, their extension directions are different, and each has a certain length along its respective extension direction, which further improves the operational reliability of the first reinforcing protrusion 5 and the second reinforcing protrusion 6.
[0057] Meanwhile, the reinforcing part 3 is located on the inner side of the intersection of the first reinforcing protrusion 5 and the second reinforcing protrusion 6, so that the reinforcing part 3 can be connected to the intersection of the first reinforcing protrusion 5 and the second reinforcing protrusion 6 along the radial direction of the engine cylinder bore 1 to form a frame structure, which further improves the structural strength and operational reliability of the first reinforcing protrusion 5, the second reinforcing protrusion 6 and the reinforcing part 3, and can effectively improve the reliability of supporting the engine cylinder bore 1, thereby effectively reducing the possibility of deformation of the engine cylinder bore 1.
[0058] In some embodiments, the top of the cooling channel 2 is provided with a connecting port 24 for communicating with the channel in the cylinder head. The connecting port 24 has a first inclined surface 25 near the inner side of the engine cylinder bore 1. The first inclined surface 25 is configured to extend inclinedly from bottom to top and from the inside to the outside. And / or, the bottom of the cooling channel 2 away from the inner wall of the engine cylinder bore 1 has a second inclined surface 26. The second inclined surface 26 is configured to extend inclinedly from top to bottom and from the outside to the inside.
[0059] Specifically, the cooling channel 2 allows coolant to flow within it to exchange heat with the engine block 100 and cool the engine block 100. The cooling channel 2 is provided with a connecting port 24, which is used to communicate with the flow channel inside the cylinder head. This allows the coolant in the cooling channel 2 to enter the flow channel inside the cylinder head through the connecting port 24, so that it can flow within the flow channel inside the cylinder head to exchange heat with the cylinder head and cool the cylinder head. This further ensures that the engine always operates within the optimal temperature range, preventing performance degradation or damage caused by engine overheating. Furthermore, by placing the connecting port 24 at the top of the cooling channel 2, the connecting port 24 can be positioned close to the cylinder head to facilitate communication between the connecting port 24 and the flow channel inside the cylinder head, thereby improving the convenience and reliability of the connection.
[0060] At the same time, such as Figure 3 As shown, the inner side of the connecting outlet 24 near the engine cylinder bore 1 has a first inclined surface 25. The first inclined surface 25 is constructed to extend from bottom to top and from the inside to the outside, so that the first inclined surface 25 and the inner side of the connecting outlet 24 near the engine cylinder bore 1 form a certain angle, which facilitates the formation of the cooling channel 2 and makes the angle between the first inclined surface 25 and the inner side of the connecting outlet 24 near the engine cylinder bore 1 obtuse, so as to reduce the structural stress at the location of the first inclined surface 25 and improve the fatigue safety factor.
[0061] Furthermore, the inner wall surface at the bottom of the cooling channel 2, away from the engine cylinder bore 1, has a second inclined surface 26. The second inclined surface 26 is constructed to extend from top to bottom and from the outside to the inside, so that the second inclined surface 26 and the inner wall surface at the bottom of the cooling channel 2, away from the engine cylinder bore 1, form a certain angle. This facilitates the formation of the cooling channel 2 and makes the angle between the second inclined surface 26 and the inner wall surface at the bottom of the cooling channel 2, away from the engine cylinder bore 1, an obtuse angle, thereby reducing the structural stress at the location of the second inclined surface 26 and improving the fatigue safety factor.
[0062] It should be noted that the cooling channels 2 inside the engine block 100 are usually formed by sand casting. A hollow structure is formed inside the engine block 100 through a specific sand core 101. In practice, as the requirements for engine compactness become more and more stringent, the thickness of the cooling channels 2 along the radial direction of the engine cylinder bore 1 becomes smaller and smaller. The engine block 100 is provided with cylinder head bolt holes 7. When the engine block 100 and the cylinder head are connected by simultaneously inserting cylinder head bolts through the cylinder head and cylinder head bolt holes 7, the tightening force of the cylinder head bolts will spread along the engine block 100. This results in greater structural stress at the inner surface of the connecting outlet 24 near the engine cylinder bore 1 and at the bottom of the cooling channels 2 away from the inner wall of the engine cylinder bore 1. By setting the first inclined surface 25 and the second inclined surface 26, the structural stress at the corresponding positions can be reduced, thereby improving the fatigue safety factor.
[0063] Furthermore, as the thickness of the cooling channel 2 along the radial direction of the engine cylinder bore 1 decreases, the thickness of the sand core 101 also decreases. The smaller the thickness of the sand core 101, the easier it is for the sand core 101 to break. Figure 5 and Figure 8 As shown, the thickness of at least a portion of the bottom of the sand core 101 between the engine cylinder bore 1 and the cylinder head bolt hole 7 along the height direction can be designed to be larger to improve the structural strength of the sand core 101. Consequently, the thickness of the top of the sand core 101 near the cylinder head bolt hole 7 can be appropriately reduced, thereby shortening the distance between the engine cylinder bore 1 and the cylinder head bolt hole 7. This can, to a certain extent, shorten the length of the engine block 100. This can improve product quality while ensuring the casting process, and increase the strength of the sand core 101 without increasing the length of the engine block 100 and the thickness of the cooling channel 2. This optimizes the casting process, reduces production waste, and saves costs.
[0064] In some embodiments, the engine block 100 is further provided with a flow channel connection port 28 communicating with the cooling flow channel 2. The flow channel connection port 28 is used to communicate with an external flow path. An annular protrusion 27 is formed on the inner side of the cooling flow channel 2. The annular protrusion 27 is disposed around the inner end of the flow channel connection port 28. A third inclined surface 29 is formed on the inner side of the annular protrusion 27 surrounding the flow channel connection port 28. The inner diameter of the third inclined surface 29 is configured to gradually increase from the flow channel connection port 28 toward the interior of the cooling flow channel 2.
[0065] Specifically, such as Figures 6-7 As shown, an annular protrusion 27 is formed on the inner side of the cooling channel 2. The annular protrusion 27 is constructed to extend a certain distance toward the inner side of the cooling channel 2 to increase the thickness of the engine block 100 at this location and improve the structural strength. The channel connection port 28 is used to connect the cooling channel 2 with an external flow path so that the coolant can flow to the external flow path, such as to an external oil cooler, to prevent the oil from overheating. In practice, the channel connection port 28 is usually machined by cutting from the outside of the engine block 100 to the inside. The annular protrusion 27 is set around the inner end of the channel connection port 28 so that the annular protrusion 27 can be used to improve the structural strength around the channel connection port 28, thereby facilitating the machining of the channel connection port 28 and avoiding breakage during machining, thus improving the reliability of machining the channel connection port 28.
[0066] Meanwhile, a third inclined surface 29 is formed on the inner side of the annular protrusion 27, surrounding the flow channel connection port 28. That is, the third inclined surface 29 intersects with the inner wall surface of the flow channel connection port 28, and the inner diameter of the third inclined surface 29 is constructed to gradually increase from the flow channel connection port 28 toward the cooling flow channel 2. This makes the included angle between the third inclined surface 29 and the inner wall surface of the flow channel connection port 28 obtuse. Thus, when machining the flow channel connection port 28, problems such as burrs and flash can be avoided at the intersection of the inner wall surface of the flow channel connection port 28 and the inner wall of the cooling flow channel 2.
[0067] In some embodiments, the third inclined surface 29 is provided with at least two partition grooves 30, which are spaced apart in the circumferential direction of the third inclined surface 29.
[0068] Specifically, the third inclined surface 29 intersects with the inner wall surface of the flow channel connection port 28, and the third inclined surface 29 is provided with a partition groove 30, and as shown in the figure... Figure 7As shown, the partition groove 30 is located at the intersection of the third inclined surface 29 and the inner wall of the flow channel connection 28. Therefore, when machining the flow channel connection 28, the partition groove 30 can cut off the annular chips generated during the cutting process. Furthermore, there are at least two partition grooves 30, meaning the number of partition grooves 30 can be two, three, or more. By distributing at least two partition grooves 30 circumferentially on the third inclined surface 29, the at least two partition grooves 30 can simultaneously cut off the annular chips at at least two locations, thus preventing the generation of annular chips and avoiding the annular chips falling into the cooling flow channel 2 and becoming difficult to remove. This improves processability, increases cleanliness, and avoids problems such as flame retardancy, pitting, and wear caused by chips, which could affect the service life of the engine block 100.
[0069] In the embodiments of this application, four partition grooves 30 are formed on the intersection line of the third inclined surface 29 and the inner wall surface of the flow channel connection port 28, and the four partition grooves 30 are evenly distributed along the circumference of the third inclined surface 29. Therefore, when processing the flow channel connection port 28, the four partition grooves 30 can cut the annular chips into four parts, effectively avoiding the generation of annular chips. The number of partition grooves 30 is not limited to that described in this embodiment and can be flexibly set according to actual needs and space availability.
[0070] In some embodiments, a plurality of engine cylinder bores 1 are provided, and the plurality of engine cylinder bores 1 are spaced apart and distributed on the engine block 100, and a reinforcing portion 3 is provided on the outer side of each engine cylinder bore 1.
[0071] Specifically, the engine cylinder bore 1 is used to provide a precise guide channel for the piston. Multiple engine cylinder bores 1 can be set, that is, the number of engine cylinder bores 1 can be two, three or more, so that multiple engine cylinder bores 1 can simultaneously provide guide channels for multiple pistons. Thus, the engine block 100 can be used in a multi-cylinder engine, so that the engine can provide continuous and stable power output. Moreover, by distributing multiple engine cylinder bores 1 at intervals in the engine block 100, there is a certain distance between multiple engine cylinder bores 1, which can avoid interference between multiple engine cylinder bores 1, and improve the reliability of providing a precise guide channel for multiple pistons and the reliability of piston operation.
[0072] For example, such as Figure 2 and Figure 4 As shown, there are four engine cylinder bores 1, meaning that the four engine cylinder bores 1 can simultaneously provide guide channels for four pistons, thereby enabling the engine block 100 to be used in a multi-cylinder engine, allowing the engine to provide continuous and stable power output.
[0073] Furthermore, each engine cylinder bore 1 is provided with a reinforcing part 3 on its outer side. That is, for each engine cylinder bore 1, a reinforcing part 3 is provided on the outer side of the engine cylinder bore 1, so that multiple reinforcing parts 3 can support the corresponding engine cylinder bore 1, improve the structural strength of each engine cylinder bore 1, and effectively prevent the deformation of each engine cylinder bore 1.
[0074] Furthermore, it should be noted that the engine cylinder block 100 of this application, without changing the material or increasing the wall thickness, can effectively suppress the deformation of the engine cylinder bore 1, so that the engine cylinder bore 1 can withstand higher explosion pressure, which can reach 200 bar.
[0075] This utility model also proposes an engine.
[0076] The engine according to the present invention includes an engine block 100 of any of the above embodiments. By connecting a reinforcing part 3 between the inner sidewall 22 and the outer sidewall 23 of the cooling channel 2, the reinforcing part 3 can support the engine cylinder bore 1 from the outside, thereby enhancing the structural strength of the engine cylinder bore 1, reducing the possibility of deformation of the engine cylinder bore 1, and without increasing the wall thickness of the engine cylinder bore 1, it will not affect the heat dissipation of the engine cylinder bore 1, thus reducing the requirements for cooling capacity. At the same time, the connecting outlet 24 has a first inclined surface 25 near the inner side of the engine cylinder bore 1, and the bottom of the cooling channel 2 has a second inclined surface 26 away from the inner wall of the engine cylinder bore 1. The first inclined surface 25 and the second inclined surface 26 are respectively used to reduce the structural stress at their respective locations and improve the fatigue safety factor.
[0077] Furthermore, a third inclined surface 29 is formed on the inner side of the annular protrusion 27, surrounding the flow channel connection opening 28. This avoids burrs and flash at the intersection of the inner wall surface of the flow channel connection opening 28 and the inner wall surface of the cooling flow channel 2. At least two partition grooves 30 are provided on the intersection line of the third inclined surface 29 and the inner wall surface of the flow channel connection opening 28, preventing the generation of annular chips and thus preventing annular chips from falling into the cooling flow channel 2 and being difficult to remove. The engine of this application can be used in vehicles.
[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An engine block, characterized by An engine cylinder bore (1) is formed in the engine cylinder body, and the engine cylinder body has a cooling channel (2) located outside the engine cylinder bore (1), and the cooling channel (2) has a water inlet (21) and a water outlet; The cooling channel (2) has an inner wall (22) close to the engine cylinder bore (1) and an outer wall (23) away from the engine cylinder bore (1). The inner wall (22) and the outer wall (23) are distributed opposite to each other, and a reinforcing part (3) is connected between the inner wall (22) and the outer wall (23).
2. The engine block of claim 1, wherein, The engine cylinder bore (1) is configured to be at least one, and each engine cylinder bore (1) is provided with at least two sets of the reinforcing parts (3), and the at least two sets of the reinforcing parts (3) are distributed at intervals in the circumferential direction of the engine cylinder bore (1).
3. The engine block of claim 2, wherein, Two of the at least two sets of the reinforcing parts (3) are radially opposite each other in the engine cylinder bore (1).
4. The engine block of claim 1, wherein, The engine cylinder block is provided with a reinforcing support (4) on the outer side. The reinforcing support (4) protrudes from the outer side of the engine cylinder block. The reinforcing part (3) is distributed on the inner side of the reinforcing support (4) along the radial direction of the engine cylinder bore (1).
5. The engine block of claim 4, wherein, The reinforcing support (4) includes a first reinforcing protrusion (5) and a second reinforcing protrusion (6) that are connected in a cross-shaped manner. Both the first reinforcing protrusion (5) and the second reinforcing protrusion (6) are constructed as long strips. The reinforcing part (3) is distributed on the inner side of the intersection of the first reinforcing protrusion (5) and the second reinforcing protrusion (6).
6. The engine block of claim 1, wherein, The top of the cooling channel (2) is provided with a connecting port (24), which is used to communicate with the channel in the cylinder head. The connecting port (24) has a first inclined surface (25) near the inner side of the engine cylinder bore (1). The first inclined surface (25) is constructed to extend from the bottom up and from the inside out. And / or, the bottom of the cooling channel (2) away from the inner wall surface of the engine cylinder bore (1) has a second inclined surface (26), the second inclined surface (26) being configured to extend from top to bottom in an inward slope.
7. The engine block of claim 1, wherein, The engine block is also provided with a flow channel connection port (28) that communicates with the cooling flow channel (2), and the flow channel connection port (28) is used to communicate with an external flow path; An annular protrusion (27) is formed on the inner side of the cooling channel (2). The annular protrusion (27) is arranged around the inner end of the channel connection port (28). A third inclined surface (29) is formed on the inner side of the annular protrusion (27) around the channel connection port (28). The inner diameter of the third inclined surface (29) is configured to gradually increase from the channel connection port (28) toward the cooling channel (2).
8. The engine block of claim 7, wherein, The third inclined surface (29) is provided with at least two partition grooves (30), and the at least two partition grooves (30) are distributed circumferentially on the third inclined surface (29).
9. The engine block of claim 1, wherein, The engine cylinder hole (1) is arranged in multiple, and multiple engine cylinder holes (1) are distributed in the engine cylinder block with interval, and the outer side of each engine cylinder hole (1) is provided with the reinforcing part (3).
10. An engine characterized by, The engine cylinder block comprises the engine cylinder hole (1) and the reinforcing part (3) arranged on the outer side of the engine cylinder hole (1).