The development of a 4-stroke locomotive diesel engines type CN 26/26 with 1000 HP to 4000 HP at 1000 rpm is the subject of this paper. Experimental works are described aimed to improve open combustion chambers which made it possible to achieve a high economy of operation with low rate of pressure increase by combustion and with moderate values of the maximum combustion pressure. Data is supplied on the adjustment of the working process with the m.e.p. of 25 kg/cm2. Ways are shown to improve diesel engine performances while operating at transient conditions and to reduce considerably the smoke rate of exhaust gases thanks to a limitation of fuel feed at transient conditions. The construction features of the weld-cast engine frame and of the nitrided crankshaft in cast iron are described.
Development of 4-stroke locomotive diesel engines type CN26/26 and adjustment of their working process at high pressure charging
Entwicklung des Viertakt-Lokomotiv-Dieselmotors CN26/26 mit Hochdruckaufladung
1975
21 Seiten, 16 Bilder, 6 Quellen
Conference paper
Storage medium
English
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