Fig. 5.5 Mission Series
Fig. 5.6 Production and Orders Received of Exhaust Gas Economizer in 1998 Fiscal Year
[Masayoshi UMEDA]
6. Shafting System
In 1998, every companies have applied shafting device of traditional design in many cases, which might be resulted by the effect of economic depression and low ship's price.
Under this condition, Propeller and Shafting Committee of MESJ has made presentation at the regular session in spring about the most recent trend of shafting device, saving energy, environment, high-speed trend, labor saving at the work site with a title of New Technology of Shafting.
Regarding the latest trend of shafting device, NIPPON KAIJI KYOKAI has introduced the changes of trend in shafting device based on the individual system with data of new built ships registered during 1985 and 1997.
For saving energy, Ishikawajima-Harima Heavy Industries Co., Ltd. made a report and introduction about the sailing result and a special feature of Contra-rotating Propeller including the system of individual company. In addition, Nakashima Propeller Co., Ltd. made a report and introduction about the design system and outline of High Efficiency Propeller. Regarding the environment, individual company of Kobelco Marine Engineering Co., Ltd., Japan Marine Technologies Ltd., Eagle Industry Niigata Co., Ltd. and Blohm & Voss Japan Ltd. made introduction about measures for environmental conservation and accessories plus new products for improvement of its reliability.
