In compliance with recent trend of building vessels of a large capacity, the evaporation capacity of marine boiler installed thereon has been now rapidly increasing as well as steam temperature and pressure. As the matter of course, the single stage feed water pump employed to such boiler is required to have large capacity up to approx. 130 m^3/h and high discharge pressure up to approx. 75 kg/cm^2 in order to meet with high performance of boiler. Since the requirement has been mostly filled up with foreign engineering up to recent time, it is eagerly demanded by all the shipbuilders in this country to develop their domestic engineering. Mitsubishi Kobe Shipyard & Engine Works has recently succeeded in accomplishing a remarkable research on developing an advanced design of feed water pump under subsidization of the Transportation Ministry. We are now introducing the outline of our research.
