Structure Introduction of Diesel Generator Oil Filter

Sep. 09, 2022

There are often wonderful metaphors for the various components of a diesel generator set. For example, the oil is called the blood of the engine, the air filter is called the lung, and the oil filter is called the liver. The main function of the filter is to remove impurities such as dust, metal particles, carbon deposits, soot particles and colloids in the oil, so as to protect the normal operation of the diesel generator set. The performance of the oil filter directly affects the overhaul of the diesel generator period and useful life.

 

Oil filter structure. According to the structure, the oil filter can be divided into replaceable type, spin-on type and centrifugal type; according to the arrangement in the system, it can be divided into full flow type and split type. Generally, the diesel generator lubrication system will be equipped with several filters with different filtration capacities: a collector, a coarse filter and a fine filter, which are respectively connected in parallel or in series in the main oil passage of the engine. Now the most widely used oil filter structure mainly includes filter paper, rubber sealing ring, backflow suppression valve, overflow valve and so on.


 Structure Introduction of Diesel Generator Oil Filter


Filter paper: It is the key to the oil filter, and the requirements are particularly high, mainly because the temperature of the oil varies from 0 to 300 degrees. Under the severe temperature change, the concentration of the oil also changes accordingly, which will affect the oil. Filter traffic. The filter paper of a high-quality oil filter should be able to filter impurities under severe temperature changes, while ensuring sufficient flow.

 

Rubber sealing ring: It is a sealing ring synthesized with special rubber to ensure 100% oil-free leakage.

 

Backflow suppression valve: Also known as a check valve, it prevents the oil filter from drying out when the diesel generator is stopped; when the generator restarts, it immediately generates pressure to supply oil to lubricate the engine.

 

Relief valve: also known as bypass valve, when the external temperature drops to a certain value or when the oil filter exceeds the normal service life, the relief valve will open under special pressure, allowing unfiltered oil to flow directly into the valve engine. Nevertheless, impurities in the oil will enter the engine together, but the damage is much less than the damage caused by no oil in the engine. Therefore, the relief valve is the key to protect the engine in an emergency. 


With the development of technology, the structure of the oil filter of generator has also changed, from the replaceable oil filter in the past to the current mainstream rotary type, the filter paper has also developed from cellulose material to the mainstream composite material, and with the emission of The upgrade of the standard is also transitioning to nano-scale filter paper with a filtration capacity of 99%. The continuously optimized and upgraded oil filter structure will better serve the engine and meet the needs of users.


Guangxi Dingbo Power Equipment Manufacturing Co.,Ltd mainly supplies 20kw~2500kw high quality diesel generating sets, if you have purchasing plan, welcome to contact us by email directly, our email is dingbo@dieselgeneratortech.com, we will reply you at any time.

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