Lightweight engine cylinder sleeve
By setting up suction channels and ventilation ports in the engine cylinder liner and using a heat-resistant and wear-resistant layer of high-silicon cast iron material, the problems of thermal expansion and contraction of engine parts and wear of the inner wall of the cylinder liner are solved, and the engine performance improvement and Extended service life.
Patent Information
- Application Number
- CN202420773705.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing wet cylinder liner structure causes thermal expansion and contraction of engine parts, reduces engine efficiency, and may cause damage to reducer parts, and uneven thermal deformation of the inner wall of the cylinder liner to aggravate wear.
A lightweight engine cylinder liner is designed, including a suction channel and a ventilation port being provided in the cylinder liner body, and a heat-proof and wear-resistant layer is installed on the side of the suction channel, using high silicon cast iron material.
Through the design of suction channels and vents, the combustion process is optimized, friction and wear are reduced, engine efficiency and heat dissipation efficiency are improved, and the service life of the cylinder liner is extended through the corrosion resistance of high silicon cast iron materials.
Smart Images
Figure CN222501895U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engines, in particular to a lightweight engine cylinder sleeve. Background Art
[0002] The cylinder liner is an important part of the engine. It is set in the cylinder hole of the engine body, and its upper part is pressed and fixed by the cylinder head to form the working space of the engine cylinder. The engine piston reciprocates in the inner hole of the cylinder liner, and the outer surface of the cylinder liner is cooled by cooling water. The current wet (water-cooled) cylinder liner structure is cylindrical, and most of its outer surface is a smooth cylindrical surface. When the diameter of the cylinder hole and cylinder liner of the engine body is determined, the heat dissipation area of the cylinder liner is basically determined.
[0003] However, during the operation of the internal combustion engine, the high-temperature and high-pressure gas generated by the combustion of the mixed gas will complete the work of the cylinder through the up and down movement of the piston. However, this high-temperature gas will produce thermal stress on components such as the piston, cylinder wall, and piston ring, causing thermal expansion and contraction of the components, which will not only reduce the working efficiency of the engine, but may also cause damage to the reducer components. Moreover, the heat cannot be dissipated in time, resulting in an increase in the temperature of the cylinder liner body, which in turn affects the normal operation of the engine. At the same time, it will directly cause uneven thermal deformation of the inner wall of the cylinder liner, aggravating the damage and wear of the inner wall of the cylinder liner, resulting in rapid wear of the cylinder liner and the adverse consequences of end wear. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a lightweight engine cylinder liner, comprising a cylinder liner body, wherein circular rings are provided at the upper and lower ends of the outer portion of the cylinder liner body, the cylinder liner body is in the shape of a cylinder, and the left and right ends of the inner portion of the cylinder liner body are equipped with intake channels, and ventilation holes are provided on the sides of the intake channels, and the vertical surface of the intake channel faces the heat-proof and wear-resistant layer.
[0005] Preferably, the air intake passage is symmetrically installed at the left and right ends of the inner wall of the cylinder liner body.
[0006] Preferably, the vent is opened on one side of the air intake passage, and a plurality of vents are provided.
[0007] Preferably, the heat-proof and wear-resistant layer is installed on the other side of the air intake passage, and the heat-proof and wear-resistant layer is made of high-silicon cast iron material. Beneficial Effects
[0008] 1. The lightweight engine cylinder liner is provided with an intake passage in the cylinder liner body, and the intake passage is used to provide an intake passage for the engine, so that air can smoothly enter the cylinder liner body, thereby mixing with the fuel and providing necessary oxygen for the combustion process, which is helpful to optimize the combustion process and improve the performance and efficiency of the engine. At the same time, air is effectively inhaled through the intake passage, and the wear and ablation caused by friction in the cylinder liner body can be reduced, thereby protecting the cylinder and piston of the engine, while ensuring the normal operation of the engine and extending the service life. A vent is provided on the side of the intake passage. During the operation of the internal combustion engine, the high-temperature and high-pressure gas generated by the combustion of the mixed gas will complete the work of the cylinder through the up and down movement of the piston. However, this high-temperature gas will generate thermal stress on components such as the piston, cylinder wall, and piston ring, resulting in thermal expansion and contraction of the components, which will not only reduce the working efficiency of the engine The rate may also cause damage to the reducer components. Therefore, the vents can effectively help the cylinder liner body to dissipate heat. During the operation of the engine, a large amount of heat is prevented from being generated in the cylinder, so that the heat cannot be dissipated in time, resulting in an increase in the temperature of the cylinder liner body, which in turn affects the normal operation of the engine. The vents can increase the convection between the cylinder liner body and the surrounding air, thereby effectively reducing the temperature of the cylinder liner body and improving the heat dissipation efficiency of the engine. At the same time, the vents can also help prevent the retention of gas inside the cylinder liner body. During the reciprocating motion of the piston, a certain airflow change will occur in the cylinder. If there is no vent in the cylinder liner, some gas may be retained in the cylinder liner body, which will not only affect the normal operation of the cylinder, but also may cause corrosion to the cylinder liner. The design of the vents can promote the circulation of gas, avoid gas retention, and ensure the normal operation of the cylinder.
[0009] 2. The lightweight engine cylinder liner is made of high-silicon cast iron material through a heat-proof and wear-resistant layer. High-silicon cast iron has high strength and wear resistance and can withstand high-speed and high-temperature working conditions. This allows the cylinder liner body to maintain a stable shape and size during high-speed operation of the engine, reducing performance degradation due to friction and wear. High-silicon cast iron is a material with excellent corrosion resistance. It can effectively resist various strong corrosive media except hydrofluoric acid, caustic soda, and sodium sulfite. During the operation of the engine, the cylinder liner body will be exposed to various chemicals and coolants. The corrosion resistance of high-silicon cast iron can ensure that the cylinder liner body can maintain a stable working state even in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0011] Figure 1This is a schematic diagram of the internal structure of the lightweight engine cylinder liner in the utility model;
[0012] Figure 2 This is a schematic diagram of the front view structure of a lightweight engine cylinder liner of the utility model;
[0013] Figure 3 For this utility model Figure 1 Enlarged structural diagram at P.
[0014] In the figure: 1. Cylinder liner body; 2. Intake channel; 3. Ventilation port; 4. Heat-resistant and wear-resistant layer. DETAILED DESCRIPTION
[0015] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.
[0016] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.
[0017] See also Figure 1-3 A lightweight engine cylinder liner includes a cylinder liner body 1. Circular rings are provided at the upper and lower ends of the cylinder liner body 1. The cylinder liner body 1 is cylindrical. Intake channels 2 are arranged at the left and right ends of the cylinder liner body 1. Ventilation holes 3 are provided on the sides of the intake channel 2. The vertical surface of the intake channel 2 faces a heat-resistant and wear-resistant layer 4.
[0018] The air intake passage 2 is symmetrically mounted on the left and right ends of the inner wall of the cylinder sleeve body 1 .
[0019] The ventilation opening 3 is opened at one side of the air intake passage 2 , and a plurality of ventilation openings 3 are provided.
[0020] The heat-proof and wear-resistant layer 4 is installed on the other side of the air intake passage 2, and the heat-proof and wear-resistant layer 4 is made of high-silicon cast iron material.
[0021] When in use, an air intake passage 2 is provided in the cylinder liner body 1, and an air intake passage is provided for the engine through the air intake passage 2, so that air can smoothly enter the cylinder liner body 1, and then mix with the fuel, and provide necessary oxygen for the combustion process, which is helpful to optimize the combustion process and improve the performance and efficiency of the engine. At the same time, air is effectively inhaled through the air intake passage 2, and the wear and ablation caused by friction in the cylinder liner body 1 can be reduced, thereby protecting the cylinder and piston of the engine, and ensuring the normal operation of the engine and extending the service life. A vent 3 is provided on the side of the air intake passage 2. Since the air intake passage 3 is used during the operation of the internal combustion engine, the air intake passage 2 can be used to reduce the wear and ablation caused by friction in the cylinder liner body 1, thereby protecting the cylinder and piston of the engine, and ensuring the normal operation of the engine and extending the service life. During the operation of the engine, the high-temperature and high-pressure gas generated by the combustion of the mixed gas will complete the work of the cylinder through the up and down movement of the piston. However, this high-temperature gas will produce thermal stress on the piston, cylinder wall, piston ring and other parts, causing the parts to expand and contract due to heat, which will not only reduce the working efficiency of the engine, but may also cause damage to the reducer parts. Therefore, the vent 3 can effectively help the cylinder liner body 1 to dissipate heat. During the operation of the engine, a large amount of heat is prevented from being generated in the cylinder, and the heat cannot be dissipated in time, resulting in the temperature of the cylinder liner body 1 rising, thereby affecting the normal operation of the engine, thereby The vent 3 can increase the convection between the cylinder liner body 1 and the surrounding air, thereby effectively reducing the temperature of the cylinder liner body 1 and improving the heat dissipation efficiency of the engine. At the same time, the vent 3 can also help prevent the retention of gas inside the cylinder liner body 1. During the reciprocating motion of the piston, a certain air flow change will occur in the cylinder. If there is no vent 3 in the cylinder liner, some gas may be retained in the cylinder liner body 1, which will not only affect the normal operation of the cylinder, but also may cause corrosion to the cylinder liner. The design of the vent 3 can promote the circulation of gas, avoid gas retention, and ensure the normal operation of the cylinder. The heat-resistant and wear-resistant layer 4 is made of high-silicon cast iron. The material is made of high silicon cast iron, which has high strength and wear resistance and can withstand high-speed and high-temperature working conditions. This allows the cylinder liner body 1 to maintain a stable shape and size during the high-speed operation of the engine, reducing the performance degradation caused by friction and wear. High silicon cast iron is a material with excellent corrosion resistance. It can effectively resist various strong corrosive media except hydrofluoric acid, caustic soda and sodium sulfite. During the operation of the engine, the cylinder liner body 1 will be exposed to various chemicals and coolants. The corrosion resistance of high silicon cast iron can ensure that the cylinder liner body 1 can maintain a stable working state even in harsh environments.
[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0023] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.
Claims
1. A lightweight engine cylinder liner, comprising a cylinder liner body (1), characterized in that: Circular rings are provided at the upper and lower ends of the cylinder liner body (1); the cylinder liner body (1) is cylindrical; the left and right ends of the cylinder liner body (1) are provided with air intake channels (2); a vent (3) is provided on the side of the air intake channel (2); and the vertical surface of the air intake channel (2) faces the heat-resistant and wear-resistant layer (4).
2. A lightweight engine cylinder liner according to claim 1, characterized in that: The air intake passage (2) is symmetrically mounted on the left and right ends of the inner wall of the cylinder sleeve body (1).
3. A lightweight engine cylinder liner according to claim 1, characterized in that: The ventilation opening (3) is opened on one side of the air intake passage (2), and a plurality of the ventilation openings (3) are provided.
4. A lightweight engine cylinder liner according to claim 1, characterized in that: The heat-resistant and wear-resistant layer (4) is installed on the other side of the air intake passage (2), and the heat-resistant and wear-resistant layer (4) is made of high-silicon cast iron material.