Dorner (Germany) - AllCarIndex

Dorner Olmotoren AG was established in Hanover, Germany, in 1927. The company was notable for its pioneering efforts in the development of vehicles powered by heavy oil engines. The designs were created by Hermann Domer, who focused on innovative engineering solutions during a time when diesel technology was still in its infancy.

Although Dorner did not produce vehicles in large series, the Domercars were significant for their early adoption of heavy oil engines, featuring 3/10 PSV-min engines. Despite the potential of his designs, Domer faced challenges in securing financial backing within Germany. Consequently, he relocated to the United States, where he sought support for his automotive innovations.

In the U.S., Domer's designs caught the attention of International Harvester Company (IHC), which began producing diesel trucks based on his concepts in 1933. This collaboration marked a pivotal moment in the history of diesel-powered vehicles, contributing to the broader acceptance and development of diesel technology in the automotive industry.