Large diesel engine, its lubricating device and its cylinder lubricating method

Abstract

The invention relates to a large diesel engine, its lubricating device and its cylinder lubricating method. Large diesel engines have at least one cylinder in which a piston can move back and forth along a running surface. The lubricating device has: a first container for a first lubricant for lubricating a cylinder; a second container for a second lubricant for lubricating the cylinder; a lubricant supply part for dispensing the first or second lubricant into the cylinder; a lubricant pump, by which the first or second lubricant can be delivered to the lubricant supply; and a switching element, by which the first or second lubricant can optionally be supplied to Lubricant pump. The first intermediate container and the second intermediate container are arranged between the switching element and the container. The first intermediate container is connected to the first container via the first supply line and to the switching element via the first supply line. The second intermediate container is connected to the second container via the second supply line and to the switching element via the second supply line.

Description

technical field [0001] The invention relates to a lubricating device for a large diesel engine, a method for cylinder lubrication of a large diesel engine and a large diesel engine. Background technique [0002] Large diesel engines, which can be designed as two-stroke or four-stroke engines (e.g. designed as longitudinally scavenged two-stroke large diesel engines), are often used as drive units for boats or even for stable operation, e.g. drives for generating electrical energy of large generators. Engines are often run for considerable periods of time in continuous operation, which places high demands on operational safety and availability. Particularly long maintenance intervals, low wear and economical handling of operating materials are therefore central criteria for the operator. [0003] The quality of the exhaust gas is another important issue that has become increasingly important over the past few years, specifically the concentration of nitrogen oxides in the e...

AI Technical Summary

Problems solved by technology

However, lubricant installations cannot react to short-term changes due to this because their guidelines are too large for changing the lubricant

This can lead to non-optimal cylinder lubrication which can lead to serious detrimental consequences for the pistons, piston rings or running surfaces in the cylinder

For example, current lubricants in insufficient BN (base number) quantities can lead to corrosion in the cylinder which can lead to deformation of the piston necessitating costly and time-consuming repairs

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