In 1795, Joseph Braman (1749-1814) of England used water as working medium in London and applied it to industry in the form of hydraulic press, resulting in the birth of the first hydraulic press in the world. In 1905, the working medium was changed from water to oil, which was further improved
After the first World War (1914-1918), hydraulic transmission was widely used, especially after 1920, it developed more rapidly. Hydraulic components began to enter the formal industrial production stage in about 20 years from the end of the 19th century to the beginning of the 20th century. In 1925, F. vikers invented the pressure balance vane pump, which laid the foundation for the modern hydraulic component industry or the gradual establishment of hydraulic transmission. At the beginning of the 20th century, G. constantimsco's theoretical and practical research on energy wave transfer; In 1910, his contribution to hydraulic transmission (hydraulic coupling, hydraulic torque converter, etc.) made these two fields develop
During the Second World War (1941-1945), hydraulic transmission was used in 30% of American machine tools. It should be pointed out that the development of hydraulic transmission in Japan is nearly 20 years later than that in Europe and America. Around 1955, Japan developed hydraulic transmission rapidly, and established the "Hydraulic Industry Association" in 1956. In the past 20 ~ 30 years, the development of hydraulic transmission in Japan is fast, ranking the leading position in the world
