MITSUBISHI UE Diesel Engine
In 1955, shop test of the first Mitsubishi UE-type engine 9UEC75/150 was completed
at Mitsubishi Heavy Industries Nagasaki Shipyard. It was the birth of Mitsubishi
UE-type engine. In 1957, Kobe Diesel Co., Ltd. made a contract on the License
Agreement with Mitsubishi UE-type engine production and became the first UE family
member. In 1958, Kobe Diesel completed its first Mitsubishi UE-type engine
6UET45/75 (2,700HP) and this engine had made her debut as a main engine of
“Kuroshio-Maru” (Kansai Line) which engaged with the Okinawa route service.
For about 10 years then after, it was the time of struggle for both licensor and licensee
who worked closely together to solve various troubles of the engines. Through these
difficult times, and through the process of overcoming these troubles, reputation and
trust towards the UE engines have been
formed among the customers slowly but
Due to its poor fuel economy, trunk piston type UET engine has disappeared some time
back and only crosshead type UEC engine is being produced continuously.
Long-term enthusiastic approach, work and efforts of UE related engineers made
Mitsubishi UE-type as one of the three major marine diesel engines (MAN B&W,
WARTSILA and Mitsubishi) in the world.
Furthermore, in 2004 CIMAC KYOTO CONGRESS, user’s working group reported that the failure rate of Mitsubishi UE was rather low than those of MAN B&W and WARTSILA.
Consequently, Mitsubishi UE engine was highlighted worldwide due to its reliability. In latest new engine development like 45LSE, reliability first design concept is continuously applied. Recently Vietnamese and Chinese engine manufacturers newly became
as UE family and further growth of Mitsubishi UE is very much expected.