Ever since Doosan Infracore started making diesel engines in the year 1958, the business has continued to manufacture its R&D capacities to stay at the forefront of the industry within Korea. During the year 1975, Doosan began mass producing diesel engines at its first large-scale plant. In a decade 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. In the year 1995 the company made its first low-emission diesel engine, followed by commercial vehicle CNG engines after three years. Since the year 2000, the company has developed technology for sophisticated common-rail engines, Tier 3-compliant engines and low-pressure natural gas engines. To be able follow stringent Euro emission control standards, the company developed a heavy-duty, low emission diesel engine model during 2007.
Doosan Infracore has facilities worldwide to produce 60 different engine models, as well as materials and parts. Products comprise natural gas engines and diesel engines for forklifts, trucks, construction machines, buses, ships, generators and more. Engines range from 70 to 1,500 horse power. Yearly output is now 75,000 units.
The company is continually engaged in expanding R&D capabilities to increase output and expand to more markets. Demand for more stringent policies governing engine emissions has led the company to make a compressed natural gas engine factory in the United States during 2008, and a joint project factory in Xuzhou, China. The factory within China can make 50,000 diesel engines on an annual basis, with production scheduled to start in 2011.