Neuer 8 CN 21/21 des Turbomotorenwerkes Sverdlovsk. Leistet in der Modifikation 8DM-21EHF 1324 kW bei 1500 U/min, Nutzdruck 18,2 bar, maximaler Verbrennungsdruck 160 bar, spezifischer Kraftstoffverbrauch 205 g/kWh (190 g/kWh bei der leistungsgeminderten Variante), spezifischer Schmieroelverbrauch 0,95 g/kWh. Entwicklungsschwerpunkte - Verbesserung des Einspritzprozesses, der Kraftstoffwirtschaftlichkeit (des thermischen Wirkungsgrades), Erhoehung des Abgasturboladerwirkungsgrades (Vergleich CSSR- und SU-Lader) und Verbesserung des Aufladesystems. Erhoehung der Zuverlaessigkeit (insbesondere des Kolbens, Zylinderkopfes, der Pleuellager). Kuenftige F/E-Arbeiten - Mikrorechnereinsatz fuer die Motorsteuerung, Waermeisolierung der Zylinder-Kolben-Baugruppe zur Sicherung einer hohen Waermerueckgewinnung.
The Associated Turbines-and-Motor Manufacturing Works, Sverdlovsk (Urals), USSR, has extended its activities in the development and manufacture of modern diesel engines in the 210/210 mm class. The new 8-cylinder diesel engine of the 8DM-21 series has a boosting range within 13.1 to 18.2 bars (mean effective pressure) and crankshaft speed within 1200 to 1500 rpm, favourably meeting the most severe and various requirements of the customers. This engine, being most powerful in its class is specially designed for powering mobile electric power stations and heavy-duty dump trucks, having an up-to 180 t load-capacity, develops a full power rating of 1324 kW (1800 h.p.) at 1500 rpm and has a specific fuel consumption of 205 g/kWh. Its service life warranted for 40000 h of operation, while its specific mass is within 4.5 kg/kW. Specific oil consumption (burning-losses) is within 0.5 % of its rated fuel consumption. The present report is concerned with the principal results of development work on this modern diesel engine.
New V-diesel engines type 84H21/21 (8DM-21)-series for various applications
1989
20 Seiten, 6 Bilder, 1 Tabelle
Conference paper
English
New V-diesel engines type 84H21/21 ( 8DM-21 )-series for various applications
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