Mitsubishi Heavy Industries Ltd. has been developing theUE diesel engines with its own technology since 1955.The UEC75LSII type diesel engine, which is the first arrowof the UEC-LSII series engines, was completed in 1987based on the excellent service results of the conventionalUEC-LS type diesel engines.Since then, the development of UEC-LSII series engineshas been proceeded step by step and the verification ontest bed of UEC37LSII type diesel engine, which is thelatest model of UEC-LSII series, was satisfactorily executedin the beginning of this year.The UEC-LSE type, which is the next generation of UECLSIIengines, was started with its development in 1998.Up to now, UEC52LSE and UEC68LSE type diesel engineshave revealed their figures. Four sets of UEC52LSE engineswere ordered and the verification test of the firstengine will be carried out in the beginning of 2001.UEC37LSIIThe 6UEC37LSII dieselengine which isthe latest model ofthe line-up of UECLSIIseries engineshad been completedby Akasaka DieselsLtd. one of the UE licenseesin Japan.The UEC37LSII enginewas developedas the main engineof various small shipssuch as handy bulkcarrier, multipurposecarrier, product carrierand chemicaltanker, etc.Both the column integratedwith camshaftcasing and thebedplate are made of monoblock casting. The cylinderjacket is extended and integrates cylinder liner supportand scavenging trunk. And the jacket type cooling isapplied to cylinder liner and cover.The arrangement of the exhaust gas manifold is optimizedin order to reduce engine height and improve thevibration characteristic.Like the above, the construction is simplified, and themaintenance and the reliability are improved.The first UEC37LSII verified its high reliability, excellentperformance and the compliance with IMO Nox regulationthrough the measurement on test bed in the beginningof this year.UEC-LSE (UEC52LSE/68LSE)The UEC-LSE engines have been developed based onthe long period good service results of UEC-LSII engines.The design concepts of the UEC engine are simplicityMitsubishi 6UEC37LSII
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