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    Lubrication of Marine Turbine Propulsion Equipment

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    The successful operation of marine turbine propulsion equipment depends in no small way on the care used in the design, manufacture, operation and maintenance of the lubrication system. Each has a part in providing for the elimination of contamination that may be detrimental to reliable operation. The most common contaminant is water, the presence of which causes the appearance of rust and other metallic compounds. The chief sources of water are shaft seal leakage, condensation, and oil cooler leakage. The advent of rust-inhibited turbine oils has been of material assistance in suppressing the formation of rust, particularly the magnetic iron oxide type, when a limited amount of water, classified as entrained moisture, is present. The A.S.T.M. rust test has been most valuable in predetermining the ability of turbine oil to offer protection against rusting when entrained moisture is present. But, depending upon quantity and chemical content of the water in the lubrication system, rust-inhibited oils may not offer satisfactory protection. It then becomes necessary to determine the reasons for the water being present and eliminate them. Thus we turn to the mechanical aspects of the propulsion equipment for the final solution of the problem. When the design, manufacturing, installation, and operating factors, about to be discussed, are given due consideration by the representatives of the ship owners, shipyards, machinery manufacturers, and oil suppliers, water and associated evils should be absent from the consideration. Only then may the best service be expected from the equipment.

    Author Information:

    Jones, Frederick S.
    Socony-Vacuum Oil Co., Inc., New York, N. Y.

    Committee/Subcommittee: D02.C0

    DOI: 10.1520/STP46710S