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DK28 diesel engine parts prevent the occurrence of failure of the valve falling into the cylinder

Date:2021-04-08 Author: Click:

DK28 diesel engine parts prevent the occurrence of failure of the valve falling into the cylinder

How to prevent the valve from falling into the cylinder and causing serious damage?

Maintenance and management before upgrade: If your diesel engine uses light diesel, it is basically not prone to the serious cylinder unit failure mentioned above. From the perspective of the mechanism of failure, it is still caused by the coking combustion products produced by abnormal combustion in the cylinder, and light diesel is unlikely to produce such substances. In other words, when light diesel is used, such failures will basically not occur. However, with the current high fuel costs, the use of fuel oil is the standard choice for ship owners.

How to prevent such failures in unupgraded diesel engines that use fuel oil? Give the following suggestions:

Pay attention to the maintenance requirements in the use of marine diesel engine accessories. Strengthen the inspection and maintenance of fuel injectors, evaluate whether the maintenance cycle can meet the requirements of equipment use through the usual inspections, and continue to optimize and adjust. In addition, the manual clearly stipulates that fuel oil should not be used for a long time when working under low load. This model must maintain a corresponding load operation during normal operation. A low load will lead to a poor thermal state of the cylinder, which is very easy to cause the combustion chamber components and valve stems of the cylinder to coking, which will lead to serious consequences. The managed ship’s 6-cylinder 16/24 engine has a rated load of 500kw, between 300-430kw in normal use, and is in good working condition. The cylinder lifting inspection is relatively good, the cylinder liner wear is very small, and the piston and ring are in good condition. This model has a strong load capacity.


DK28 diesel engine parts prevent the occurrence of failure of the valve falling into the cylinder

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