The internal combustion engine refers to the manufacture of reciprocating, rotary, spark ignition or compression ignition internal combustion engines and accessories for mobile or stationary use. Internal combustion engines are widely used in automobiles, motorcycles, shipbuilding, construction machinery, agricultural machinery and other fields.

There are many companies engaged in internal combustion engines internationally, but the developed countries are presenting the trend of shifting manufacturing enterprises to developing countries. Some domestic policies, regulations and standards have introduced higher requirements for energy-saving emission reduction and pollution reduction of internal combustion engines.

According to industry forecasts, energy conservation and emission reduction will become the mainstream of the internal combustion engine manufacturing industry.

China's internal combustion engine manufacturing industry is dominated by small businesses. Private companies, other companies of the same nature, foreign investors, and Hong Kong, Macao, and Taiwan investment companies dominate the industry. Industry regions are unevenly developed, mainly in Jiangsu, Shandong, Shanghai, and other eastern regions. In 2011, the number of companies in East China accounted for 69.67% of the country's total, and sales revenue accounted for 61.39% of the country's total.

At present, the enterprises in this industry are highly competitive. On the one hand, foreign companies transfer technology to domestic related companies; set up joint ventures with existing domestic companies; set up joint ventures with domestic vehicles and other enterprises so as to introduce internal combustion engines and accessories; and directly import into the Chinese market.

On the other hand, domestic companies are also threatened by potential entrants and industry alternatives. The threat of these two threats will not be too great due to the high threshold of funds, technology and personnel for internal combustion engines and accessories. In the face of fierce competition, the main countermeasures for domestic companies are mergers and acquisitions, restructuring and upgrading.

In recent years, the economy of China's internal combustion engine and accessories manufacturing industry has been operating well. Compared with previous years, the growth rate in 2011 has slowed down. The data show that in 2011, there were 478 enterprises with industrial scale (more than RMB 20 million yuan), and the total industrial output value was 1.490040 trillion yuan; the entire industry achieved a sales value of 14.5111 billion yuan, a year-on-year increase of 20.76%; and the total profit was 10.524 billion yuan, a year-on-year increase of 8.37%. .

During the "12th Five-Year Plan" period, China will actively develop a low-carbon economy and enhance its capacity for sustainable development. At the same time, China has made international commitments to “further strengthen energy conservation and improve energy efficiency, and strive to achieve a significant reduction in the carbon dioxide emissions per unit of GDP from 2020 compared to 2005”. According to statistics, in China's primary energy consumption structure, internal combustion engine products consume more than 60% of China's petroleum energy annually.

It can be seen that the internal combustion engine products are both the source of combustion and the source of emission pollution. The entire industry will have a major historical responsibility and social responsibility in the national policy of energy conservation and emission reduction.

Forward-looking Industry Research Institute of the internal combustion engine manufacturing industry predicts that reducing fuel consumption of the product is the core technical indicators and preferred commercial indicators of the internal combustion engine power. To develop competitive energy-saving products, we must shift from general passive research to applied active research, and the energy-saving and emission-reduction work of internal combustion engines will be used as the dominant proposition to implement the entire process of scientific research and development and industrial application.

At the same time, the development of high-efficiency fuel alternative fuels will also become the theme and core of the work of the internal combustion engine manufacturing industry for a long time to come.

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