During the last few years the authors have delivered a great number of 850/1700-engines as well as of 750/1600-engines. Some engines of these types with equal cylinder numbers have been installed in a series of identical ships, for example, thirteen 850/1700 VGA-9U in 70000-tons oil tankers and thirteen 750/1600 VGS-7U in 35000-tons bulk carriers, offering a good base for comparison. In some of the 850/1700 engines disturbancies occurred already after a few months of operation. These disturbancies - i.e. cracked cylinder covers, erosion burning on piston crowns and instable thermodynamic cycle - as well as their causes - for instance abnormal service conditions or abnormal load conditions due to overpitched propellers and big hull resistance - are dealt with in detail and from different points of view. This important experience was utilized when designing the new welded engine types. The 750/1600 engines hitherto delivered have given a most reliable service performance, even at remarkable overload conditions. Of special interest is the good experience gained from controllable pitch propellers for different ships, different service fields and various power outputs up to 20000 BHP for ships up to 70000 tons.


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    Titel :

    Recent service experience from two-stroke, uniflow-scavenged, constant-pressure charged marine diesel engines and its influence on the further engine development


    Weitere Titelangaben:

    Wartungserfahrungen mit Zweitakt-Schiffsdieselmotoren und ihr Einfluss auf die zukünftige Motorenentwicklung


    Beteiligte:
    Holmberg, S. (Autor:in) / Westlin, A. (Autor:in)


    Erscheinungsdatum :

    1968


    Format / Umfang :

    58 Seiten, 37 Bilder, 3 Tabellen, 5 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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    THE P&H UNIFLOW-SCAVENGED TWO-STROKE DIESEL ENGINE

    PAQUETTE, M. W. | SAE Technical Papers | 1957


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    Development of a novel uniflow-scavenged two-stroke GDI engine

    Ohlmann,D. / Reynolds,S. / Ciccarelli,G. et al. | Kraftfahrwesen | 2006