SAFETY SYSTEM FOR LUBRICATION OF THE CYLINDER OF A LARGE SLOW-RUNNING INTERNAL COMBUSTION ENGINE AND A LARGE SLOW-RUNNING TWO-STROKE INTERNAL COMBUSTION ENGINE

摘要

Safety system for lubrication of the cylinder of a large slow- running internal combustion engine and a large slow- running two-stroke internal combustion engine A system for lubrication of the cylinder (1) of a large slow-running internal combustion engine. The lubrication system comprises a plurality of lubricant injectors (4) of which each one is connected via one of a corresponding plurality of lubricant supply lines (9) to a lubricant pump unit (11). The injectors (4) have an injection pressure level at which the injectors (4) are activated for ejecting lubricant. Each of the plurality of lubricant supply lines (9) is connected to an upstream side of one of a corresponding plurality of overpressure relief valves (16) for opening the overpressure re- lief valve (16) when the pressure in the corresponding lubricant supply line (9) exceeds a predetermined overpressure relief level which is above the injection pressure level. The downstream sides of all overpressure relief valves (16) are connected to a common overpressure detection device (17, 19, 26), which is configured for giving a signal when a pressure in any one of the plurality of lubricant supply lines (9) exceeds the predetermined overpressure relief level. In particular, the overpressure relief valves (16) are provided remotely from the lubricant pump unit (11) and are communicating only by pipes (9, 15) via the lubricant supply lines (9) to the lubricant pump unit (11).