Ever since Doosan Infracore began producing diesel engines during 1958, the business has continued to manufacture its R&D capacities to stay at the forefront of the industry in Korea. During 1975, Doosan started mass producing diesel engines at its very first large-scale plant. In 10 years the production technology of the company had advanced to the point that producing its own diesel engine model was possible. Doosan's leadership position within the industry was secured. During 1995 Doosan produced its first low-emission diesel engine, followed by commercial vehicle CNG engines three years later. Since the year 2000, the company has developed technology for Tier 3-compliant engines, low-pressure natural gas engines and sophisticated common-rail engines. To be able follow stringent Euro emission control standards, the company developed a low-emission, heavy-duty diesel engine model during the year 2007.
Doosan has lots of facilities throughout the globe that help manufacture 60 different engine models, as well as parts and materials. Products comprise diesel engines and natural gas engines for trucks, forklifts, buses, construction equipment, generators, ships and more. Engines range from 70 to 1,500 hp. Yearly output is currently 75,000 units.
The company is continually engaged in expanding R&D capabilities to expand to more markets and increase output. Demand for more stringent policies governing engine emissions has led the company to build a compressed natural gas engine factory within the United States during 2008, and a joint project plant in Xuzhou, China. The plant within China can make 50,000 diesel engines per year, with production scheduled to start in 2011.