One of the largest conglomerates in South Korea, the oldest and fastest-growing enterprise in South Korea, was founded in 1896. In 2007, the company acquired part of Ingersoll Rand's business and established the Doosan Mobile Power Division, the world's leading manufacturer of mobile power equipment. Doosan generator system can provide multiple protection functions for the unit's oil temperature, water temperature, oil pressure, rotational speed, overload, etc., and is available in four types: open, silent, trailer, and rainproof. Doosan diesel engines are mid-range products in the industry, and they are mainly used in the field of marine engines and internal combustion power plants that utilize diesel engines.