Engine cylinder body and vehicle
By setting up a spacer sleeve at the connection of the engine cylinder block to block the flow of liquid silicone into the oil circuit, the problem of oil circuit blockage is solved, ensuring the engine lubrication and normal operation of the variable valve timing function.
Patent Information
- Application Number
- CN202420609071.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The sealant of the oil circuit of the existing automotive engine lubrication system can easily lead to oil circuit blockage, affecting the engine lubrication and variable valve timing function.
A barrier sleeve is installed at the connection of the engine cylinder to prevent liquid silicone from flowing into the oil circuit, and the extruded liquid silicone is blocked through the barrier sleeve to prevent oil circuit from being blocked.
Ensure the normal circulation of oil in the oil circuit, ensure the lubrication of the engine and the normal operation of the variable valve timing function, and avoid the problem of oil circuit blockage.
Smart Images
Figure CN222208095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, in particular to an engine cylinder body and a vehicle. Background Art
[0002] At present, the sealing between the components of the oil circuit of the existing automobile engine lubrication system is usually achieved by using rubber rings, sealing gaskets and oil-resistant sealants. The method of applying the oil-resistant sealant is usually to apply it on two matching planes. After the oil-resistant sealant is cured, a sealing effect can be achieved.
[0003] At the same time, when designing the oil circuit of the engine, the cleanliness of the product after assembly must be repeatedly considered to prevent foreign matter from entering and clogging the oil circuit. However, on the plane sealed with silicone, the silicone is likely to be exposed and block the oil circuit. Once the oil circuit is blocked, insufficient oil supply will occur, thereby affecting the lubrication of the engine or the engine variable valve timing cannot operate normally. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an engine cylinder block, when a first cylinder block and a second cylinder block are connected and liquid silicone in a sealant groove is squeezed, the liquid silicone is blocked by a rubber spacer sleeve to prevent the liquid silicone from flowing into the oil path of the first cylinder block and the second cylinder block, thereby preventing the oil path from being blocked.
[0005] According to an embodiment of the utility model, the engine cylinder body includes: a first cylinder body and a second cylinder body, the first cylinder body is provided with a first oil circuit, the second cylinder body is provided with a second oil circuit, the first cylinder body is connected to the second cylinder body and the first oil circuit is communicated with the second oil circuit, a sealing rubber groove is formed at the connection between the first cylinder body and the second cylinder body; a rubber isolation sleeve, the rubber isolation sleeve is located at the connection between the first cylinder body and the second cylinder body, the rubber isolation sleeve is used to communicate the first oil circuit with the second oil circuit, and the sealing rubber groove is located on the outside of the rubber isolation sleeve.
[0006] According to the engine cylinder body of the embodiment of the utility model, a rubber isolation sleeve is provided, and liquid silicone can be injected into the sealing rubber groove at the connection between the first cylinder body and the second cylinder body. During the connection between the first cylinder body and the second cylinder body, the liquid silicone is squeezed and flows out in the direction of the first oil circuit and the second oil circuit. Since the rubber isolation sleeve is provided at this time, the squeezed liquid silicone can be blocked to prevent the liquid silicone from flowing into the first oil circuit and the second oil circuit and clogging the oil circuit. As a result, the oil in the oil circuit can flow normally, so that the lubrication work or variable valve timing of the engine can operate normally.
[0007] According to the engine cylinder block of the embodiment of the utility model, the first cylinder block is formed with a first connecting groove at the end of the first oil circuit, and the second cylinder block is formed with a second connecting groove at the end of the second oil circuit, the first connecting groove and the second connecting groove are spliced and jointly form a receiving groove, and the rubber isolation sleeve is arranged in the receiving groove and is respectively sealed with the inner circumferential wall of the first connecting groove and the inner circumferential wall of the second connecting groove.
[0008] According to the engine cylinder block of the embodiment of the utility model, a first chamfer is provided at the end of the first connecting groove close to the connection, and a second chamfer is provided at the end of the second connecting groove close to the connection. After the first cylinder block and the second cylinder block are connected, an overflow space is formed between the first chamfer and the second chamfer.
[0009] According to the engine cylinder block of the embodiment of the utility model, after the first cylinder block and the second cylinder block are connected, an installation recess is formed on the inner peripheral wall of the accommodating groove, and the outer periphery of the rubber isolation sleeve is at least partially located in the installation recess.
[0010] According to the engine cylinder block of the embodiment of the utility model, the outer wall of the rubber isolation sleeve has an interference fit with the inner wall of the first connecting groove and has a clearance fit with the inner wall of the second connecting groove.
[0011] According to the engine cylinder block of the embodiment of the utility model, the axial length of the interference fit between the outer wall of the rubber sleeve and the inner wall of the first connecting groove is a, the axial length of the clearance fit between the rubber sleeve and the inner wall of the second connecting groove is b, and the following is satisfied: a>b.
[0012] According to the engine cylinder block of the embodiment of the utility model, 3mm≤b≤5mm.
[0013] According to the engine cylinder block of the embodiment of the utility model, the inner diameter of the rubber isolation sleeve is larger than the inner diameters of the first oil passage and the second oil passage.
[0014] According to the engine cylinder block of the embodiment of the utility model, the sealing glue groove is formed on at least one of the sides of the first cylinder block and the second cylinder block facing each other, and liquid silicone is injected into the sealing glue groove.
[0015] The utility model embodiment also discloses a vehicle, comprising the above-mentioned engine cylinder block.
[0016] The advantages of the vehicle described above over the prior art are the same as those of the engine block described above over the prior art, which will not be elaborated here.
[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram of the structure before the first cylinder body and the second cylinder body of the embodiment of the utility model are connected;
[0020] Figure 2 It is a partial enlarged schematic diagram of the first cylinder body and the second cylinder body of the embodiment of the utility model before being connected;
[0021] Figure 3 It is an embodiment of the utility model Figure 2 A partial enlarged schematic diagram of
[0022] Figure 4 It is a schematic diagram of the structure of the rubber isolation sleeve of the embodiment of the utility model being located in the first cylinder body and the second cylinder body;
[0023] Figure 5 It is a top view of the second cylinder body of the embodiment of the utility model facing the connection surface of the first cylinder body.
[0024] The first cylinder body 1 , the first oil passage 11 , the first chamfer 12 , the second cylinder body 2 , the second oil passage 21 , the second chamfer 22 , the rubber isolation sleeve 3 , the accommodating groove 4 , the first connecting groove 41 , the second connecting groove 42 , the mounting sink groove 43 , and the sealing rubber groove 5 . DETAILED DESCRIPTION
[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0026] Reference below Figure 1-Figure 5 The engine cylinder body of the utility model embodiment is described. By setting a rubber spacer sleeve 3, the sealing rubber groove 5 at the connection between the first cylinder body 1 and the second cylinder body 2 can be injected with liquid silicone. During the connection between the first cylinder body 1 and the second cylinder body 2, the liquid silicone is squeezed and flows out in the direction of the first oil passage 11 and the second oil passage 21. At this time, the squeezed liquid silicone can be blocked by the rubber spacer sleeve 3 to prevent the liquid silicone from flowing into the first oil passage 11 and the second oil passage 21 and clogging the oil passage. As a result, the oil in the oil passage can flow normally, so that the lubrication work or variable valve timing of the engine can operate normally.
[0027] like Figure 1-5As shown, the engine cylinder block according to the embodiment of the utility model comprises: a first cylinder block 1, a second cylinder block 2 and a rubber isolation sleeve 3.
[0028] Among them, the first cylinder body 1 is provided with a first oil circuit 11, the second cylinder body 2 is provided with a second oil circuit 21, the first cylinder body 1 is connected to the second cylinder body 2 and the first oil circuit 11 is connected to the second oil circuit 21, and a sealing rubber groove 5 is formed at the connection between the first cylinder body 1 and the second cylinder body 2; the rubber isolation sleeve 3 is located at the connection between the first cylinder body 1 and the second cylinder body 2, the rubber isolation sleeve 3 is used to connect the first oil circuit 11 with the second oil circuit 21, and the sealing rubber groove 5 is located on the outside of the rubber isolation sleeve 3.
[0029] In practice, the first cylinder body 1 can be the main cylinder body, and the second cylinder body 2 can be the auxiliary cylinder body. The material of the main cylinder body and the auxiliary cylinder body can be aluminum-based ADC12, which is the main body of the engine. Its main function is to connect each cylinder and the crankcase into one, and it is a supporting skeleton for installing pistons, crankshafts and other parts and accessories. For example, the main cylinder body carries the left piston connecting rod mechanism and crankshaft of the engine, and the auxiliary cylinder body only carries the right piston connecting rod mechanism, so as to realize the normal operation of the engine; and the main cylinder body is provided with a first oil circuit 11, and the first oil circuit 11 can be connected to the main lubricating oil circuit of the engine, and the auxiliary cylinder body is provided with a second oil circuit 21, and the second oil circuit 21 is connected to the first oil circuit 11 and the main lubricating oil circuit of the engine, or is connected to the oil circuit of the engine timing system, so as to realize the normal operation of the engine timing. The timing is the oil circuit required to adjust the closing time of the intake and exhaust valves. The normal operation of the engine is ensured through the normal operation of each oil circuit.
[0030] In addition, when the main cylinder body and the auxiliary cylinder body are connected, there is a gap on the connection surface of the main cylinder body and the auxiliary cylinder body. In order to seal the gap between the contact surfaces of the main cylinder body and the auxiliary cylinder body, liquid silicone can be set at the sealant groove 5. When the main cylinder body and the auxiliary cylinder body are connected by bolts, for example, the main cylinder body and the auxiliary cylinder body can be tightened with M8 bolts with a tightening torque of 20Nm±2Nm. At this time, the liquid silicone is also squeezed to seal the gap between the contact surfaces of the main cylinder body and the auxiliary cylinder body. At this time, the liquid silicone will flow to the first oil circuit 11 and the second oil circuit 21 during the extrusion process, thereby causing the oil circuit to be blocked. By setting a rubber spacer 3 at the connection between the first oil circuit 11 and the second oil circuit 21, that is, the first oil circuit 11 and the second oil circuit 21 are aligned, and the rubber spacer 3 blocks the connection between the first oil circuit 11 and the second oil circuit 21, the squeezed liquid silicone will not enter the first oil circuit 11 and the second oil circuit 21, and the rubber spacer 3 is hollow and allows the oil in the first oil circuit 11 and the second oil circuit 21 to flow.
[0031] Therefore, the embodiment of the utility model can block the squeezed liquid silicone by providing the rubber isolation sleeve 3, preventing the liquid silicone from flowing into the first oil circuit 11 and the second oil circuit 21 and clogging the oil circuit, so that the oil in the oil circuit can flow normally, so that the lubrication work of the engine or the variable valve timing can operate normally.
[0032] In some embodiments, the first cylinder body 1 is formed with a first connecting groove 41 at the end of the first oil circuit 11, and the second cylinder body 2 is formed with a second connecting groove 42 at the end of the second oil circuit 21. The first connecting groove 41 and the second connecting groove 42 are spliced and jointly form a receiving groove 4. The rubber sleeve 3 is arranged in the receiving groove 4 and is sealed with the inner circumferential wall of the first connecting groove 41 and the inner circumferential wall of the second connecting groove 42 respectively.
[0033] In practice, when the first oil circuit 11 and the second oil circuit 21 are opposite to each other, the first connecting groove 41 and the second connecting groove 42 are aligned, which facilitates the installation of the rubber isolation sleeve 3 and also facilitates the communication between the first oil circuit 11 and the second oil circuit 21 through the rubber isolation sleeve 3; specifically, the first oil circuit 11 of the first cylinder body 1 is set to be inclined, and the second oil circuit 21 of the second cylinder body 2 is set to be inclined, such as Figure 1 As shown, the angle between the first oil circuit 11 and the second oil circuit 21 can be an obtuse angle, which can achieve optimal spatial arrangement and save space; if the first oil circuit 11 and the second oil circuit 21 are arranged to be inclined, the intersection of the first oil circuit 11 and the second oil circuit 21 may be misaligned due to the different angles, which may reduce the effective oil flow area. By providing the rubber isolation sleeve 3, the problem of misalignment and reduced oil flow area caused by the inclination of the first oil circuit 11 and the second oil circuit 21 can be solved.
[0034] Therefore, installing the rubber isolation sleeve 3 in the receiving groove 4 can facilitate the installation of the rubber isolation sleeve 3 and ensure the normal communication between the first oil circuit 11 and the second oil circuit 21 .
[0035] In some embodiments, a first chamfer 12 is provided at the end of the first connecting groove 41 near the connection, and a second chamfer 22 is provided at the end of the second connecting groove 42 near the connection. After the first cylinder body 1 and the second cylinder body 2 are connected, an overflow space is formed between the first chamfer 12 and the second chamfer 22.
[0036] When the first cylinder body 1 and the second cylinder body 2 are connected, the first chamfer 12 and the second chamfer 22 are opposite to each other and form an overflow space, that is, when the liquid silicone in the sealant groove 5 is squeezed, the liquid silicone will flow from the sealant groove 5 along the contact surface of the first cylinder body 1 and the second cylinder body 2 toward the side close to the first oil circuit 11 and the second oil circuit 21, and then flow into the overflow space. The overflow space can be used to accommodate and store the liquid silicone overflowed from the connection between the main cylinder body and the auxiliary cylinder body, thereby further ensuring that the liquid silicone will not enter the first oil circuit 11 and the second oil circuit 21.
[0037] Of course, it should be noted that the liquid silicone may not flow to the overflow space during the squeezing process. It depends on the amount of liquid silicone. As long as the contact surface of the first cylinder body 1 and the second cylinder body 2 and the outer sides of the first oil circuit 11 and the second oil circuit 21 can be sealed to prevent the oil in the oil circuit from leaking from the gap between the contact surfaces of the first cylinder body 1 and the second cylinder body 2, it will be sufficient.
[0038] In some embodiments, after the first cylinder body 1 and the second cylinder body 2 are connected, an installation recess 43 is formed on the inner peripheral wall of the receiving groove 4 , and the outer periphery of the rubber isolation sleeve 3 is at least partially located in the installation recess 43 .
[0039] Among them, after the first cylinder body 1 and the second cylinder body 2 are connected, the first connecting groove 41 and the second connecting groove 42 are aligned to form a receiving groove 4, and the receiving groove 4 is used to set the rubber isolation sleeve 3, and a mounting groove 43 can be set in the receiving groove 4. The length of the mounting groove 43 along the axial direction of the rubber isolation sleeve 3 is smaller than the length of the receiving groove 4 along the axial direction of the rubber isolation sleeve 3, so that the rubber isolation sleeve 3 can be installed at the mounting groove 43, and the effect of expanding the oil circuit can be achieved between the mounting groove 43 and the first oil circuit 11, and at the same time, the effect of expanding the oil circuit can be achieved between the mounting groove 43 and the second oil circuit 21. In addition, the rubber isolation sleeve 3 is installed in the mounting groove 43, and the stability is better.
[0040] In some embodiments, the outer wall of the rubber isolation sleeve 3 has an interference fit with the inner wall of the first connecting groove 41 and has a clearance fit with the inner wall of the second connecting groove 42 .
[0041] It should be noted that the interference fit between the outer wall of the rubber sleeve 3 and the inner wall of the first connecting groove 41 can realize the positioning of the rubber sleeve 3 and ensure the stability of the installation of the rubber sleeve 3, and the clearance fit between the outer wall of the rubber sleeve 3 and the inner wall of the second connecting groove 42 is to prevent the rubber sleeve 3 from being over-positioned when the first cylinder body 1 and the second cylinder body 2 are connected by bolts, and the first oil circuit 11 and the second oil circuit 21 are both oblique oil circuits. Over-positioning may cause deformation of the rubber sleeve 3. However, it should be noted that the length of the rubber sleeve 3 extending into the second connecting groove 42 is long enough, and the gap between the outer wall of the rubber sleeve 3 and the inner wall of the second connecting groove 42 is small enough, which can also prevent liquid silicone from flowing into the second oil circuit 21. That is to say, under normal circumstances, the silicone will flow to the overflow space at most. Combined with the length design of the rubber sleeve 3 extending into the second connecting groove 42 and factors such as the viscosity of the silicone, the silicone will not flow to the second oil circuit 21. Therefore, the outer wall of the rubber sleeve 3 has an interference fit with the inner wall of the first connecting groove 41 and a clearance fit with the inner wall of the second connecting groove 42, which can ensure the connection stability of the rubber sleeve 3 and prevent deformation caused by over-positioning of the rubber sleeve 3.
[0042] In some embodiments, the axial length of the interference fit between the outer wall of the rubber sleeve 3 and the inner wall of the first connecting groove 41 is a, the axial length of the clearance fit between the rubber sleeve 3 and the inner wall of the second connecting groove 42 is b, and the following is satisfied: a>b.
[0043] In practice, under the premise of ensuring that the axial length of the clearance fit between the outer wall of the rubber sleeve 3 and the inner wall of the second connecting groove 42 can effectively resist the liquid silicone, and the gap is smaller than the minimum channel for the flow of liquid silicone, if the viscosity of liquid silicone is strong, sufficient clearance is required to flow through, and thus it cannot flow smoothly or become solid in a smaller gap. Therefore, the clearance fit between the outer wall of the rubber sleeve 3 and the inner wall of the second connecting groove 42 can also effectively block the silicone and prevent over-positioning, and the axial length of the interference fit between the outer wall of the rubber sleeve 3 and the inner wall of the first connecting groove 41 is greater than the axial length of the clearance fit between the rubber sleeve 3 and the inner wall of the second connecting groove 42, which can make the stability of the rubber sleeve 3 better.
[0044] In some embodiments, 3mm≤b≤5mm. For example, the axial length of the clearance between the rubber spacer 3 and the inner wall of the second connecting groove 42 is 4mm, which can prevent over-positioning and block the contact surface between the first cylinder body 1 and the second cylinder body 2. In addition, combined with the viscosity of the liquid silicone and the actual amount used, and the setting of the second connecting groove 42, the liquid silicone will not block the second oil path 21.
[0045] In some embodiments, the inner diameter of the rubber isolation sleeve 3 is larger than the inner diameters of the first oil passage 11 and the second oil passage 21 .
[0046] In practice, refer to Figure 2 and Figure 3 As shown, first, the receiving groove 4 formed by the first connecting groove 41 and the second connecting groove 42 is set larger, and after the rubber spacer 3 is installed in the receiving groove 4, the inner diameter of the rubber spacer 3 is still larger than the inner diameter of the first oil circuit 11 and the second oil circuit 21, so the first oil circuit 11 and the second oil circuit 21 are connected and the oil is intercommunication, and the rubber spacer 3 can not only meet the function of blocking liquid silicone, but also will not affect the oil flow in the first oil circuit 11 and the second oil circuit 21, and the oblique first oil circuit 11 and the second oil circuit 21 are difficult to align in practice. If misalignment occurs, the oil passing through will be reduced, and the inner diameter of the rubber spacer 3 is set larger, which is convenient for the oil in the oblique first oil circuit 11 and the oblique second oil circuit 21 to flow more smoothly. The rubber spacer 3 can be made of metal material, and the inner diameter of the rubber spacer 3 is larger than the diameter of the first oil circuit 11 and the second oil circuit 21 on both sides, and it can also better prevent silicone from overflowing into the oil hole when the design space is insufficient.
[0047] In some embodiments, a sealing glue groove 5 is formed on at least one of the sides of the first cylinder body 1 and the second cylinder body 2 facing each other, and liquid silicone is injected into the sealing glue groove 5 .
[0048] In practice, if Figure 5 As shown, the sealant groove 5 is arranged on the second cylinder body 2, and the sealant groove 5 is located at Figure 5 The left side of the second connecting groove 42 and along Figure 5 Extending in the up and down directions, Figure 5 It is a top view of the contact surface between the second cylinder body 2 and the first cylinder body 1. When liquid silicone is set in the sealant groove 5, the liquid silicone is squeezed, and then the liquid silicone in the sealant groove 5 first separates the second connecting groove 42 from the outside. The liquid silicone in the sealant groove 5 can prevent the oil in the oil circuit from leaking to the outside of the engine cylinder body. At the same time, the squeezed liquid silicone can also seal the gap between the connecting surfaces of the first cylinder body 1 and the second cylinder body 2, thereby preventing the oil between the first oil circuit 11 and the second oil circuit 21 from flowing out.
[0049] Of course, the sealant groove 5 can also be set in the first cylinder body 1, or set on the opposite surfaces of the first cylinder body 1 and the second cylinder body 2. By setting liquid silicone in the sealant groove 5, the sealing of the connecting surface between the first cylinder body 1 and the second cylinder body 2 can be better achieved to prevent oil from leaking out.
[0050] The utility model embodiment also discloses a vehicle, including the above-mentioned engine cylinder body, by providing a rubber spacer sleeve 3, and the sealing rubber groove 5 at the connection between the first cylinder body 1 and the second cylinder body 2 can be injected with liquid silicone. During the process of combining the first cylinder body 1 and the second cylinder body 2, the liquid silicone is squeezed and flows out in the direction of the first oil circuit 11 and the second oil circuit 21. At this time, the squeezed liquid silicone can be blocked by the rubber spacer sleeve 3 to prevent the liquid silicone from flowing into the first oil circuit 11 and the second oil circuit 21 and clogging the oil circuit. As a result, the oil in the oil circuit can circulate normally, so that the lubrication work of the engine or the variable valve timing can operate normally, thereby improving the performance of the vehicle's engine.
[0051] 1. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0052] 2. In the description of the present utility model, "first feature" and "second feature" may include one or more of these features.
[0053] 3. In the description of this utility model, "plurality" means two or more.
[0054] 4. In the description of the present invention, a first feature “above” or “below” a second feature may include that the first and second features are directly in contact, or may include that the first and second features are not in direct contact but are in contact via another feature between them.
[0055] 5. In the description of the present utility model, the first feature “above”, “above” and “on” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An engine cylinder block, characterized in that: include: a first cylinder body and a second cylinder body, wherein the first cylinder body is provided with a first oil circuit, the second cylinder body is provided with a second oil circuit, the first cylinder body is connected to the second cylinder body and the first oil circuit is connected to the second oil circuit, and a sealing rubber groove is formed at the connection between the first cylinder body and the second cylinder body; A rubber isolation sleeve, the rubber isolation sleeve is located at the connection between the first cylinder body and the second cylinder body, the rubber isolation sleeve is used to connect the first oil circuit with the second oil circuit, and the sealing rubber groove is located on the outside of the rubber isolation sleeve.
2. The engine block according to claim 1, characterized in that: The first cylinder body is formed with a first connecting groove at the end of the first oil circuit, and the second cylinder body is formed with a second connecting groove at the end of the second oil circuit. The first connecting groove and the second connecting groove are spliced and jointly form a receiving groove. The rubber isolation sleeve is arranged in the receiving groove and is respectively sealed with the inner circumferential wall of the first connecting groove and the inner circumferential wall of the second connecting groove.
3. The engine block according to claim 2, characterized in that: The end of the first connecting groove close to the connection is provided with a first chamfer, and the end of the second connecting groove close to the connection is provided with a second chamfer. After the first cylinder body and the second cylinder body are connected, an overflow space is formed between the first chamfer and the second chamfer.
4. The engine block according to claim 2, characterized in that: After the first cylinder body and the second cylinder body are connected, an installation recess is formed on the inner peripheral wall of the accommodating groove, and the outer periphery of the rubber isolation sleeve is at least partially located in the installation recess.
5. The engine block according to claim 3, characterized in that: The outer wall of the rubber isolation sleeve has an interference fit with the inner wall of the first connecting groove and has a clearance fit with the inner wall of the second connecting groove.
6. The engine block according to claim 5, characterized in that: The axial length of the interference fit between the outer wall of the rubber isolation sleeve and the inner wall of the first connecting groove is a, the axial length of the clearance fit between the rubber isolation sleeve and the inner wall of the second connecting groove is b, and the following is satisfied: a>b.
7. The engine block according to claim 6, characterized in that: in, 3mm≤b≤5mm.
8. The engine block according to claim 1, characterized in that: The inner diameter of the rubber isolation sleeve is larger than the inner diameters of the first oil passage and the second oil passage.
9. The engine block according to claim 1, characterized in that: The sealing glue groove is formed on at least one of the sides of the first cylinder body and the second cylinder body facing each other, and liquid silicone is injected into the sealing glue groove.
10. A vehicle, characterized in that: An engine cylinder block comprising any one of claims 1 to 9.