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Five Hazards Of Diesel Generators Running At Low Load

Apr. 07, 2022

We all know that the main purpose of low-load operation of diesel generators is to control preheating and prevent the occurrence of rapid wear and tear of diesel generators. The long-term low-load operation is undoubtedly an obstacle to the normal operation of diesel generators. Let us understand the five major hazards of wear and tear of moving parts during long-term low-load operation of diesel generators.


Diesel generator sets operate under a small load. With the continuation of the running time, the following five hazards will occur:


Hazard 1. The piston-cylinder liner is not well sealed, the oil runs up, enters the combustion chamber and burns, and the exhaust emits blue smoke.


Hazard 2. For a supercharged diesel engine, the boost pressure is low due to low load and no-load. It is easy to cause the sealing effect of the supercharger oil seal (non-contact type) to decrease, and the oil escapes into the supercharger chamber and enters the cylinder with the intake air.


Hazard 3. Part of the oil that goes up to the cylinder participates in the combustion, and part of the oil cannot be completely burned, forming carbon deposits on the valve, intake port, piston crown, piston ring, etc., and part of it is discharged with the exhaust. In this way, oil will gradually accumulate in the exhaust port of the cylinder liner, and carbon deposits will also be formed.

diesel engine

Hazard 4. The oil in the pressurized chamber of the supercharger accumulates to a certain extent, and it will leak from the joint surface of the supercharger.


Hazard 5. Long-term low-load operation will lead to more serious wear and tear of moving parts, deterioration of engine combustion environment, etc., which will lead to the consequences of early overhaul period.


Jiangsu Starlight Power Generation Equipment Co., Ltd. was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Starlight has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.

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