Fuel and Lubricant. Performance of Stuffing Box and Rings in Marine Diesel Engines Related to Environment and Reliability. Part 1. Analysis of Actual Data Obtained from Ships in Service.

概要

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An actual survey on the performance of stuffing box and rings in marine diesel engines has been made on 7 ships selected from numbers of ships subjected to Mitsui O.S.K. Lines and NYK Line. Samples of the stuffing leak oil (SLO) were obtained from each cylinder of engines in every month from 1999 to 2001 years. Volumetric and chemical changes were observed on all samples. The results obtained are as follows: (1) The most suitable volume of SLO varies from 3 to 7 ml/Day/kW. (2) The most suitable volume of SLO differs with different types of engines. (3) The best performance of stuffing box and rings required are: (1) the contact between rings and the moving piston rod keeps the best condition at all times, (2) every cylinder keeps the most suitable volume of SLO through the long time service, (3) stuffing box and rings prevent completely the leakage of the dirty scavenging drain from cylinder to crank case.
社団法人日本マリンエンジニアリング学会の論文