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cylinder linerless engine (cylinder sleeveless engine): get rid of the challenges brought by new technology. With the continuous progress of science and shipment data accesstechnology, the automotive industry is also constantly exploring new technologies and applying them to production. The cylinder sleeveless engine (cylinder sleeveless engine) is one of the new technologies. Compared with traditional engines, cylinder-linerless engines have many advantages in energy saving, emission reduction and promoting the sustainable development of the automobile industry.However, this technology also brings some challenges, such as engine temperature control and airtightness assurance. This article will analyze the cylinderless engine from these aspects. A cylinderless engine means that the inner wall of the engine cylinder is not covered by any kind of casing material. Its production and use can make up for some shortcomings of traditional engines to a certain extent, such as high emissions, low power and high energy consumption. At present, the trend of cylinder-free engines is gradually emerging, especially in the fields of "new energy, intelligence, vehicle networking, sharing economy", which has become the general trend of the automobile industry. However, there are also some technical difficulties in the cylinder sleeveless engine, such as its temperature control problem, that is, how to ensure that it can still maintain good working condition in a high temperature state for a long time. Due to the cylinder-free engineThe inner wall material of its cylinder does not exist, and its heat dissipation conditions are relatively poor. Long-term operation will produce a large amount of heat, which is manifested as its high cooling water temperature, and the heat energy is not easy to radiate. The increase in temperature will lead to the deformation of the body and even damage the engine. Therefore, it must be finely controlled by temperature. Another problem is airtightness. Because the cylinder-leass engine directly contacts the cylinder combustion chamber with the cooling water, it is easy to cause wear under the long-term action of the body, and due to the natural expansion and contraction of the material, the cylinder-liner-free engine requires very precise size and size in the manufacturing process. Therefore, effective airtight measures must be taken. In order to solve these problems, manufacturers have poured a lot of money and human resources into the study of different materials and cutting-edge technologies. For example, its solutions to heat dissipation problems include improving the circulation efficiency of engine cooling water, reducing internal air resistance, and using special materials to relieve internal pressure.The solution in terms of airtightness can make up for the expansion and contraction of the material by using high-strength materials. In addition, it should be noted that the promotion of cylinderless engine technology needs to be gradually carried out, and the production demand is constantly growing, especially the need to strengthen the application of intelligence, simulation, digital management and other aspects. Therefore, when promoting and implementing the new technology of cylinderless engine, more attention must be paid to the details and quality of the whole production process. In a word, as an important new technology, the cylinderless engine has made positive contributions to the future development of the automobile industry. But it also faces many challenges, especially in terms of engine temperature control and airtightness. Manufacturers and engineers need to work more closely together to meet these challenges, and constantly improve and innovate to ensure the smooth promotion and application of this technology.

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