ANALYSIS OF MODERN METHODS FOR ENSURING LUBRICATION OF THE CYLINDER-PISTON GROUP

Abstract

Introduction. Recently, new systems have appeared on marine engines cylinder liner lubricants from different manufacturers. World leaders the following manufacturers are involved in the production of these systems: Wärtsilä Retrofit pulse lubrication system (RPLS); MAN B&W Lubrication engine control system (LUBECS) and Hans Jansen. Major innovations and technical developments in cylinder systems lubricants boil down to the following: saving cylinder oil; reduction of wear of cylinder liners; – reducing the risk of cold corrosion of cylinder liners; maximum possible operating time in “Slows teaming” mode and “Extra Slow steaming” (mode of long-term operation of ship engines on low loads 50% MCR and ultra-low loads from 10% to 50% MCR). Purpose. Analysis of the approaches of the above-mentioned manufacturers to solving problems of high-quality functioning of cylinder lubrication systems allows us to trace current trends in ensuring optimal lubrication regimes for modern marine diesel engines with increased piston stroke. Solving these problems (according to ship tests of the manufacturers in question) leads to a reduction in cylinder oil consumption by approximately two times. Results. Overview of cylinder oil injection systems into the cylinder, determination of the approaches of a well-known manufacturer of lubrication systems and the difference in supply principles, designed for training ship mechanics – understanding the differences and features of lubrication systems in modern operating conditions (different types of engines, manufacturers, and differences in classes of ships) will help to avoid breakdowns of main engines and financial losses for shipowners. Conclusions. We will consider the methods by which these problems are solved and the assigned tasks are solved in this article.