Japanese cars have advanced engines, but they dare to sell to any country. Aren't they afraid of leaking technology?

When I was in an aviation central enterprise, we had an injection mold made in Japan. During this period, a guide pillar was broken, and eleven guide pillars were continuously processed by the processing technology of aero-engine made by our central enterprises. Both the measurement accuracy and surface smoothness are not worse than those made in Japan, but the assembly is not good, so we have to ask the Japanese to send another one and complete the assembly immediately. Japanese engine technology is very advanced, dare to sell to any country, but not afraid of technology leakage! All this stems from their confidence in their core technology.

Compared with Nissan's variable compression ratio engine technology and general intelligent variable cylinder engine technology, we still have a big gap thanks to Mazda's Chuangchi Blue Sky engine technology and Toyota's high compression ratio naturally aspirated engine technology. For a long time, engines made in Japan will not only meet domestic demand, but also be exported to other countries in large quantities. Many friends are curious about this. Since Japan sells engines all over the world, why never worry about technology leakage? I found the answer after disassembling the Japanese engine. It is said on the Internet that Japanese engines are very advanced.

The reason is that Japan has started testing XF9- 1 turbofan engines, and Japan has also provided single crystal blades to the United States, so Japanese engines are really so advanced that they can be sold all over the world without fear of leakage? In fact, Japan sells single crystal blades and parts, which has its own uniqueness in this field. However, after China dismantled these Japanese-related engines, he found it very difficult. Frankly speaking, it's nothing. Japan's aero-engine technology is very advanced, but it dares to sell to any country.

China opened it and found the answer. In fact, the engine principle is not difficult, and the manufacturing drawings are not difficult to obtain. However, many experts at home and abroad have studied it for more than 30 years, but they can't copy the same Japanese engine! The reason is that the core technology cannot be imitated, and the gap between manufacturing technology and core materials cannot be imitated. Many Japanese cars have joint venture car factories in China, and most of the car assembly and engine manufacturing are done by domestic workers. However, the Japanese are a little chicken thief. They seem to expect that people in other countries will stop copying their technology, so they think of countermeasures in advance. They adopt seamless start-up technology and completely shut out all imitation technologies.