Is a diesel generator installed with an oil filter?
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There are grinding debris, dust and other mechanical impurities and colloidal deposits in the oil, which requires the use of oil filter to remove to reduce the wear of the diesel generator set mechanical parts, extend the oil life, prevent oil blockage and burn bearings, etc. Serious accident. The performance of the oil filter directly affects the overhaul period and service life of the diesel engine.
The basic requirement for the oil filter is that the filtration effect is good and the resistance is small, and the two are contradictory. In order to make the oil not only get a good filtration but also not pass the resistance too much, the general diesel engine lubricating system is equipped with several filters, which are respectively connected in series with the main oil passage (the diesel engine circulation oil all flows through it. Filters are called full flow) and parallel (this type of filter is called shunt type).
The oil filter can be classified into filter type and centrifugal type according to the filtration method. In addition, there are core metal wear debris as an auxiliary filter. Filtering can be divided into fine filter, coarse filter, and filter according to the different filtering capacity. Filter oil filter can be divided into mesh type, scraper type, wirewound type, sawdust filter type, paper filter type and composite type according to the different structure.
The above picture shows the oil filter used in the 6135 diesel engine, including the primary filter and the fine filter. The left part of the figure is a coarse filter. The oil flows from the oil passage of the engine body through the tangential rectangular oil passage on the filter seat into the conical cavity of the strainer body and rotates at high speed. Under the action of centrifugal force, large impurities and small parts The oil is forced into the fine filter along the wall of the conical cavity toward the lower end of the strainer seat, and most of the clean oil in the center portion of the conical cavity enters the main oil passage along the middle oil hole of the filter seat. This type of strainer does not require a filter element, has a simple structure and is easy to maintain.