In Japan, about 5.6 billion tons of freight are transported annually and 90 % of this figure is supported by trucks. Among them, the heavy vehicles of GVW 20 ton are employed as one of the main means of such transportation and they are produced about 40000 units annually. For these trucks, over 80 types of diesel engines have been developed during the past 20 years. Today, there are more than 30 domestic types. The engine displacement ranges from 8.8 to 18.0 liters and the maximum output spreads from 27 Ohp (199 kW) to 38 Ohp (280 kW). The naturally aspiration type occupies 70 % and the turbocharged or turbo-intercooled type takes the remaining portion. The authors present the design concept and the technical background which are involved in the abovementioned engines. They also describe the technology which concerns combustion, gas exchange, construction, electronic control, etc. and the 'total power system' (some simultaneously managing system) formulated to realize such engines.
Progress of heavy truck diesel engines in Japan
Fortschritt bei Dieselmotoren fuer Schwerlastwagen in Japan
SAE-Papers ; Mar ; 1-15
1988
15 Seiten, 37 Bilder, 15 Quellen
Conference paper
English
Progress of Heavy Truck Diesel Engines in Japan
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TIBKAT | 54.1988,9 - 62.1996