JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN
Online ISSN : 1884-4758
Print ISSN : 0388-3051
ISSN-L : 0388-3051
Volume 2 , Issue 4
Showing 1-7 articles out of 7 articles from the selected issue
  • [in Japanese]
    1967 Volume 2 Issue 4 Pages 151-157
    Published: 1967
    Released: May 31, 2010
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1967 Volume 2 Issue 4 Pages 158-165
    Published: 1967
    Released: May 31, 2010
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1967 Volume 2 Issue 4 Pages 166-172
    Published: 1967
    Released: May 31, 2010
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese]
    1967 Volume 2 Issue 4 Pages 173-179
    Published: 1967
    Released: May 31, 2010
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese]
    1967 Volume 2 Issue 4 Pages 180-186
    Published: 1967
    Released: May 31, 2010
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese]
    1967 Volume 2 Issue 4 Pages 187-191
    Published: 1967
    Released: May 31, 2010
    JOURNALS FREE ACCESS
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  • Masayoshi Ishimaru, Chikara Kobayashi
    1967 Volume 2 Issue 4 Pages S49-S61
    Published: 1967
    Released: May 31, 2010
    JOURNALS FREE ACCESS
    In recent years high alkalinity oils has been used in marine diesel engines, operating on residual fuel with high sulfur content. In order to evaluate the engine performance of these oils on the laboratory engine tests, several types of engine tests were discussed. The results were obtained as follows:
    (1) Although a thermal loads of the diesel engine were highly, standardised laboratory diesel engine tests such as Caterpillar 1-A, 1-D, 1-G and petter AV-1 were found to be unsatisfactory for the evaluation of high alkality oils of which base numbers excess about 13 mg·KOH/g.
    (2) Research was then done towards a type of small diesel engine using heavy fuel. Yanmar NK 3 engine test gave poor results. However, it was able to evaluate the detergency and antiwear properties of high alkalinity oils under 30 mg⋅KOH/g base number on Yanmar F4 engine having higher thermal load (0.117 bhp/cm2) than Caterpillar 1-A.
    (3) For further inspections, the Bolnes engine test described by Pouderoyen et al. were checked. Bolnes long-term tests of oils with these numbers of about 0 to 70 could-be evaluated by measuring cylinder liner diameter increase and piston deposits rating, respectively, after continuous operation for 500-800 hrs.
    Bolnes wear performance tests (Screening tests) could rapidly be evaluated the antiwear properties of high alkalinity oils. The authors discussed then a reasonable arrangement of the data.
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