In the Republic of China 15 (1926), Tang resolutely gave up his generous work and economic treatment in France and returned to the motherland with a childlike heart and ambition to revitalize the motherland through industry. Tang successively served as the section chief and factory director of Xuzhou, Kaifeng, Luoyang and Shaanxi locomotive depots of Longhai Railway. Because of his comprehensive skills and the ability of the prime minister to work in an all-round way, he was transferred to Zhengzhou Railway General Administration. After returning to China, Tang witnessed with his own eyes the tragic situation that China relied on a large amount of silver for foreign oil to maintain the traffic situation because of backward technology and traffic, and he was very sad. In order to change China's passive situation of backward transportation and dependence on foreign oil, he decided to produce a car that doesn't need gasoline, instead of a car that lives on gasoline. In the Republic of China 17 (1928), Tang did what he said. With his professional skills and limited personal financial resources, Tang rented a shabby hut in Kaifeng, the capital of Henan Province, bought a used car, a cylinder and a water tank, and began the research of replacing foreign oil stoves with charcoal. He used his spare time to invest all his savings, forgot to eat and sleep, and persevered. In Tang dynasty, mud was used as furnace test first, then changed to single furnace test, and finally double furnace test was adopted, and the effect was increasingly remarkable. In the 20th year of the Republic of China (193 1), Tang successfully trial-produced the first charcoal car. In September, Tang drew up a structural drawing and reported it to the Ministry of Industry for the record. He obtained a five-year patent and disclosed the performance and drawings of replacing the oil stove with charcoal, which caused a shock throughout the country. In February 65438, Tang took a test drive of his first charcoal car in Bishagang, Zhengzhou. The audience in the city flooded in, and they were all proud of the scientific and technological achievements made by this industrial savior.

On February1June 265438 (1932), experts such as Shu Zhendong, a mechanic of the Ministry of Industry, found that the cost of replacing the oil stove with charcoal was lower than that of carburetor, and compared with similar charcoal cars made in the world, the charcoal car invented by Tang had three advantages: first, it didn't need gasoline as a medium when starting; Second, the weight is less than 100 kg, which can be installed on the left and right sides or behind the car, which is convenient and flexible; Third, you can drive for four hours at a speed of 25 miles per hour by adding charcoal once. If it goes public, it will save a lot of foreign exchange for the country, thus ending the situation that foreign oil dominates the automobile market in China. After passing the charcoal car exam, Yang Hucheng, chairman of Shaanxi provincial government, immediately sent to Henan to invite Tang to perform in Shaanxi. On August 23, Tang personally drove his car to An, and every performance attracted a flood of people and was well received by all walks of life. After Yang Hucheng's publicity and promotion, all provincial governments in China sent invitations, and Tang was invited to drive to Taiyuan, Shanghai, Hangzhou, Wuhan, Nanjing, Guangzhou and other provinces and cities to perform, which achieved great publicity results and was highly valued by the Kuomintang government.

In the 24th year of the Republic of China (1935), on February 2nd, the Nanjing government sent experts to observe Tang's heavy-duty driving test in Tangshan Town, Nanjing. After passing the appraisal, he was awarded the charcoal automobile invention certificate. The Central Finance Committee also awarded Don 1000 the Invention Award, and the Nanjing Municipal Government ordered him to promote the car he invented throughout the country. Don returned to his hometown with a laurel crown. He donated this charcoal car with national integrity to the Construction Department of Henan Provincial Government. The Henan provincial government immediately allocated funds and ordered all cars in the province to be replaced by charcoal cars. Tang Zhongming returned to Meng County, founded the "Zhongming Oil Furnace" factory, and wrote this monograph, which was spread all over the world.

In the 24th year of the Republic of China (1935), the car parts of the government-run long-distance bus operation department were all refitted, and the first charcoal motorcade was established in Xinxiang, northern Henan. In the same year, with the support of Tang Yunqing, a famous industrialist in modern times, Tang established "Shanghai Machinery Co., Ltd." in Shanghai, with Tang Yunqing as general manager and Tang as chief designer. The company completed the production of charcoal cars. Entrepreneurs are optimistic about the future of this car and have donated money to become shareholders. The demand for orders from various provinces was in short supply, which made the company become a large-scale enterprise in Shanghai in a short time, and the charcoal car also became China in 1930s and 40s. Tang did not rest on his laurels, but actively improved the technical deficiencies of charcoal cars. He wants the charcoal car to stand the test of history. People all over the country supported Tang's patriotic actions and sponsored his research. Because of Tang's advanced understanding, after the Japanese invaders invaded China, the China government in southwest China was able to persist in the war of resistance even though foreign aid was cut off by the Japanese invaders. Thanks to Don, gasoline was invented several years in advance. After August 13, Shanghai fell into the hands of the Japanese aggressors, and the "charcoal automobile factory" painstakingly invented by Tang was destroyed by the war. Don was unwilling to be conquered people and was forced to bid farewell to Shanghai. After several exile in Taihe, Jiangxi Province, he was hired as the director of Taihe Machinery Factory. Two years later, he applied for a research job in Liuhegou Factory in Guilin, Guangxi.

In the 29th year of the Republic of China (1940), despite difficulties and hardships, Tang successfully researched the "Zhong Ming Power Machine", which made great contributions to the society and obtained a ten-year patent approved by the Ministry of Economic Affairs. So Tang founded "China Power Plant" in Guilin, specializing in the production of power machines. Its products are exported to domestic provinces, replacing the monopoly position of similar products imported from abroad in China.

1 949 65438+1October1,New China was founded. Tang successively worked as an engineer, chief engineer and chief designer in Yanggongqiao Water Control Project Factory, Hongfali Machinery Factory, 206 Factory of Southwest Ministry of Industry, Chongqing Diesel Engine Factory and Chongqing Hydraulic Turbine Factory. His patriotism and knowledge of science and technology won the support of the people, and he was elected as a representative of Chongqing Municipal People's Congress and a member of the Chinese People's Political Consultative Conference.

From 65438 to 0955, Tang was chosen as a model worker in Chongqing because he made great contributions to the initial construction of socialism. 1957, Tang, a patriotic scientist who devoted himself to his career, was wrongly classified as a rightist; 196 1 year, Tang was labeled as an active counter-revolutionary, dismissed from public office, sentenced to fixed-term imprisonment, executed outside prison and handed over to the people's control. In the late Cultural Revolution, Tang was sent back to his hometown in Mengxian. He has an open mind and never gave up scientific research because of adversity. The people in his hometown are very sympathetic to this people's scientist, the hero of the country and the nation. Meng county government also cares about his life and scientific research environment everywhere and encourages him to continue his scientific research. In order to repay the love of the people in his hometown, Tang invented the "rotor extrusion pump" in adversity, and the first test lift reached more than 70 meters; After technical transformation, the lift can reach more than 180 meters, which completely solves the problems of water use and irrigation for people in hometown. This invention was named "Tang rotor pump". 1977, in order to affirm Tang's scientific and technological achievements, Meng county government specially invited this expert who has not lifted the misclassification problem to attend the scientific and technological commendation meeting held in Xinxiang area, which was the greatest support and political affirmation for Tang.

1979 when Tang Zheng was working hard to raise the pump head to several hundred meters, there was good news in the county. Chongqing Party Organization completely rehabilitated him and restored his reputation. The Chongqing municipal government sent someone to invite Tang back to Chongqing. Tang finally ushered in the spring of scientific research, when he was ready to make more contributions to the people in his later years. 1980 In March, Tang died of cerebral hemorrhage at the age of 83.