| dc.description.abstract | Diesel engines have been greatly improved since the 1960s, giving greater fuel economy as compared to other prime movers. During this period, we experienced two oil-crises which resulted in drastic increases in the price of fuel; most ship owners in the world have been seriously concerned about this rise in fuel costs. In response to the request to reduce operating costs most diesel manufacturers in japan have given top priority to the development of extremely economical engines or systems including less fuel consumption, savings in man power, and lower maintenance coasts. | en |
