A cylinder block with adjustable heat dissipation effect

Abstract

This utility model discloses an adjustable heat dissipation cylinder body, including a cover structure and a cylinder liner. The cylinder liner and the cover structure form a piston chamber. Side heat dissipation fins are provided on the outside of the cylinder liner, and top heat dissipation fins are detachably mounted on the cover structure. The side heat dissipation fins and the cylinder liner are integrally formed. Compared to existing cylinder bodies, this utility model adds top heat dissipation fins, thereby increasing the heat dissipation effect. Furthermore, the detachable connection of the top heat dissipation fins allows for the replacement of different heat dissipation fins according to actual heat dissipation needs. Moreover, the integral forming of the cover structure and cylinder liner prevents air or oil leaks.

Description

Technical Field

[0001] This utility model relates to the field of engine cylinder liner or cylinder head technology, and in particular to a cylinder block with adjustable heat dissipation effect. Background Technology

[0002] In traditional engine design, the cylinder head, cylinder liner, and piston form a closed system that constitutes the cylinder's working space. The cylinder head, engine block, cylinder liner, and cylinder head gasket together create a sealed space to seal the high-temperature, high-pressure combustion gases. However, these high-temperature, high-pressure gases are prone to causing problems such as cylinder head gasket failure. Furthermore, the cooling requirements of the cylinder liner vary under different operating conditions. If the cooling effect is insufficient, excessively high cylinder temperatures can lead to a reduction in the lifespan of the cylinder head and cylinder liner.

[0003] Especially for low-horsepower two-stroke engines, the split cylinder head increases the overall weight of the engine and has a certain impact on performance, affecting the reliability of the engine.

[0004] In aircraft engine cylinder block systems, cooling fins are typically added, such as... Figure 1 As shown, the cylinder head 1 is first installed on the cylinder liner 4 by the first bolt 2, and there is a gasket 3 between the cylinder head 1 and the cylinder liner 4. The outer side of the cylinder liner 4 has heat dissipation fins, and the heat dissipation fins are integrally formed with the cylinder liner 4. Then, the cylinder liner 4 is installed on the crankcase assembly 6 by the second bolt 5.

[0005] The drawbacks of the above structure are that, on the one hand, the heat dissipation fins are only on the outside of the cylinder liner and are limited in number, which affects the heat dissipation effect to a certain extent, and the heat dissipation level cannot be adjusted according to the actual situation; on the other hand, since the cylinder head is installed on the cylinder liner by bolts, the processing efficiency is affected to a certain extent; and the existing gaskets between the cylinder head and cylinder liner may cause air leakage or even oil leakage. Utility Model Content

[0006] To address the technical problems existing in the background art, this utility model proposes a cylinder with adjustable heat dissipation effect.

[0007] This invention discloses an adjustable heat dissipation cylinder, comprising a cover structure and a cylinder liner. The cylinder liner and the cover structure form a piston chamber. Side heat dissipation fins are provided on the outside of the cylinder liner, and top heat dissipation fins are detachably mounted on the cover structure. Similar to existing technologies, the side heat dissipation fins and the cylinder liner are integrally formed. The top heat dissipation fins can be parallel to the side heat dissipation fins; preferably, in this invention, the top heat dissipation fins and the side heat dissipation fins are arranged perpendicularly.

[0008] Compared to existing cylinder blocks, this invention adds top heat dissipation fins, thereby increasing the heat dissipation effect. Furthermore, the top heat dissipation fins are detachable, allowing for the replacement of different heat dissipation fins according to actual heat dissipation needs.

[0009] As a further optimization of this invention, the cover structure is integrally formed with the cylinder liner. This further enhances the sealing performance and increases processing efficiency.

[0010] To meet the requirements of engine layout and operational reliability, an integrated cylinder liner and top cooling fins are added to the cylinder block structure, thereby increasing the cooling effect of the cylinder liner, achieving a compact layout, and facilitating installation.

[0011] As a further optimization of this utility model, the top heat dissipation fins are detachably mounted on the cover structure via a first fixing member. Specifically, the cover structure has a blind hole, and the first fixing member extends into the blind hole. The first fixing member can be a bolt or screw, or similar structure as used in the prior art.

[0012] As a further optimization of this utility model, a heat dissipation pad is provided between the top heat dissipation fins and the cover structure. Optionally, the heat dissipation pad can be a heat dissipation graphite pad.

[0013] As a further optimization of this utility model, the cover structure has a sensor mounting hole for installing a temperature sensor. When the temperature detected by the temperature sensor is too high, the heat dissipation effect can be improved by replacing the top heat dissipation fins.

[0014] As a further optimization of this utility model, the top heat dissipation fins include a connecting plate and fins vertically disposed on the connecting plate, and the connecting plate is detachably mounted on the cover structure.

[0015] As a further optimization of this utility model, the connecting plate has through holes, which facilitates heat dissipation while reducing weight.

[0016] As a further optimization of this utility model, the cover structure has a connecting hole, and a second fastener is installed in the connecting hole to install the cover structure and cylinder liner on the crankcase assembly. The connecting plate has a portion located above the connecting hole, and the second fastener can be a bolt.

[0017] The proposed engine body structure, which features an adjustable cooling cylinder block, an integrated cylinder liner, and separate cooling fins, ensures reliable engine operation, reduces engine weight, and improves fuel efficiency. Furthermore, the integrated molding of the cover structure and cylinder liner prevents air or oil leaks.

[0018] 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

[0019] Figure 1 This is a schematic diagram of the existing cylinder block structure;

[0020] Figure 2 This is a schematic diagram of the cylinder structure of this utility model;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0023] In the diagram: 1. Cylinder head; 2. First bolt; 3. Gasket; 4. Cylinder liner; 5. Second bolt; 6. Crankcase assembly; 7. Cover structure; 70. Connecting hole; 71. Sensor mounting hole; 8. Top heat dissipation fins; 80. Connecting plate; 800. Through hole; 81. Fins; 9. Side heat dissipation fins; 10. First fastener; 11. Heat dissipation pad; 12. Second fastener. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols 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.

[0025] like Figure 2 - Figure 4 The cylinder shown is a cylinder with adjustable heat dissipation effect. The cylinder includes a cover structure 7 and a cylinder liner 4. The cylinder liner 4 and the cover structure 7 form a piston chamber. The cylinder liner 4 is provided with side heat dissipation fins 9. The cylinder liner 4 and the side heat dissipation fins 9 are integrally formed. The cover structure 7 is detachably installed with top heat dissipation fins 8. The top heat dissipation fins 8 and the side heat dissipation fins 9 are perpendicular.

[0026] Compared to existing cylinder blocks, this invention adds top heat dissipation fins 8, thereby increasing the heat dissipation effect. The top heat dissipation fins 8 are detachable, allowing for the replacement of different fins 81 according to actual heat dissipation needs. To facilitate temperature monitoring of the cylinder block, the cover structure 7 has sensor mounting holes 71 for installing a temperature sensor (not shown in the figure). When the temperature sensor detects an excessively high temperature, the top heat dissipation fins 8 can be replaced to increase the heat dissipation effect, thus ensuring optimal cooling performance.

[0027] Preferably, the cover structure 7 and the cylinder liner 4 are integrally formed, and the cover structure 7 is a plate-like structure, which is convenient for processing. This further increases the sealing performance and processing efficiency.

[0028] To meet the requirements of engine layout and operational reliability, an integrated cylinder liner 4 and a top cooling fin 8 are added to the cylinder block structure, thereby increasing the cooling effect of the cylinder liner 4, achieving a compact layout, and facilitating installation.

[0029] Preferably, the top heat dissipation fins 8 are detachably mounted on the cover structure 7 via a first fastener 10, which can be a bolt. Specifically, the cover structure 7 has a blind hole, and the first fastener 10 extends into the blind hole.

[0030] To further enhance the heat dissipation effect, preferably, a heat dissipation pad 11 is provided between the top heat dissipation fins 8 and the cover structure 7. Optionally, the heat dissipation pad 11 can be a heat dissipation graphite pad.

[0031] Preferably, the top heat dissipation fins 8 include a connecting plate 80 and fins 81 vertically disposed on the connecting plate 80. As in the prior art, the fins 81 and the connecting plate 80 are integrally formed, and the connecting plate 80 is detachably mounted on the cover structure 7.

[0032] Preferably, the connecting plate 80 has through holes 800, which can reduce the overall weight while improving heat dissipation.

[0033] Preferably, the cover structure 7 has a connecting hole 70, and a second fastener 12 is installed in the connecting hole 70 to install the cover structure 7 and the cylinder liner 4 on the crankcase assembly 6. The connecting plate 80 has a portion located above the connecting hole 70, and the second fastener 12 can be a bolt.

[0034] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cylinder with adjustable heat dissipation, characterized in that, It includes a cylinder liner (4) and a cover structure (7), the cover structure (7) and the cylinder liner (4) form a piston chamber, the cylinder liner (4) is provided with side heat dissipation fins (9), and the cover structure (7) is detachably installed with top heat dissipation fins (8).

2. The adjustable heat dissipation effect cylinder according to claim 1, wherein, The top heat dissipation fins (8) are perpendicular to the side heat dissipation fins (9).

3. The cylinder block with adjustable heat dissipation effect according to claim 1, characterized in that, The cover structure (7) is integrally formed with the cylinder liner (4).

4. The cylinder block with adjustable heat dissipation effect according to claim 1, characterized in that, The top heat dissipation fins (8) are detachably mounted on the cover structure (7) via the first fastener (10).

5. The cylinder block with adjustable heat dissipation effect according to claim 1, characterized in that, A heat dissipation pad (11) is provided between the top heat dissipation fins (8) and the cover structure (7).

6. The cylinder block with adjustable heat dissipation effect according to claim 5, characterized in that, The heat dissipation pad (11) is a heat dissipation graphite pad.

7. The cylinder block with adjustable heat dissipation effect according to claim 1, characterized in that, The cover structure (7) has a sensor mounting hole (71) for installing a temperature sensor. When the temperature detected by the temperature sensor is too high, the heat dissipation fins (8) on the top can be replaced to ensure the heat dissipation effect.

8. The cylinder block with adjustable heat dissipation effect according to claim 1, characterized in that, The top heat dissipation fins (8) include a connecting plate (80) and fins (81) vertically arranged on the connecting plate (80). The connecting plate (80) is detachably mounted on the cover structure (7).

9. The cylinder block with adjustable heat dissipation effect according to claim 8, characterized in that, The cover structure (7) has a connecting hole (70) and a second fastener (12) is installed in the connecting hole (70) to install the cover structure (7) and the cylinder liner (4) on the crankcase assembly (6). The connecting plate (80) has a portion located above the connecting hole (70).

10. The cylinder block with adjustable heat dissipation effect according to claim 8, characterized in that, The connecting plate (80) has a through hole (800).

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