Safety system for cylinder lubrication of large-sized low-speed internal combustion engine and large-low-speed two-stroke internal combustion engine

摘要

In a safety system for cylinder lubrication of a large-sized low-speed internal combustion engine and a large-sized low-speed two-stroke internal combustion engine according to the present invention, the system is for lubrication of a cylinder 1 of a large- The lubrication system includes a plurality of lubricant injectors (4) each of which is connected to a lubricant pump unit (11) via one of a plurality of corresponding lubricant supply lines (9). The injection device 4 has an injection pressure level at which the injection device 4 activates the lubricant injection. Each of the plurality of lubricating oil supply lines (9) is provided with a corresponding plurality of overpressure valves (16) for opening the over-pressure relief valve (16) when the pressure in the corresponding lubricating oil supply line (9) exceeds a predetermined over- Is connected to the upstream side of one of the relief valves 16. The downstream side of all the over-pressure relief valves 16 is connected to a common over-pressure detecting device 17, 19, 26 and the pressure in any one of the plurality of lubricant supply lines 9 is set to a predetermined over- And to provide a signal when exceeded. In particular, the overpressure relieving valves 16 are provided far away from the lubricating oil pump unit 11 and are connected only by the piping 9, 15 to the lubricating oil pump unit 11 via the lubricating oil supply line 9.