Liu Erkong has successively designed screw compressors, diesel engine exhaust muffler, V and W series air compressors, ironing and polishing machines, pressure vessels, the first double-tooth rotary compressor in China and the first scroll compressor in China. 1988 introduced British VH series compressor technology, and translated technical data160,000 words; 1994 After studying in the United States, he took charge of designing automobile air-conditioning series compressors and room air-conditioning series compressors in Liuzhou Yifeng Company. To sum up, * * * sponsored and cooperated to design more than 40 specifications of products, compiled more than 20 computer application software for scientific research, and published nearly 20 scientific papers and translations in journals such as Fluid Machinery and Compressor Technology. 1985- 1987 participated in the preparatory work of China compressor industry association, and was responsible for editing the first issue of compressor communication. Non-service inventions include "water pressure washing machine" (patent number: ZL 96219814.5+04.5). He used to be the head of the compressor unit of Liu Erkong Association for Science and Technology; He was rated as an activist of compressor science and technology information network (1985 ——1987) of the Ministry of Machinery Industry and an excellent journalist of compressor news (1984 ——1987). He was rated as an advanced worker of Liuzhou 199 1 year, and an advanced worker of Liuzhou's eighth five-year plan for scientific and technological progress. Its achievements have been included in Selected Excellent Patented Technologies in China, Soul of Revitalizing the Chinese China Grand Prix in a Hundred Years, and China Expert Dictionary.