The centrifugal oil filter has a rotor mounted on a shaft and has two nozzles with opposite directions of injection. When the oil enters the rotor and comes out of the nozzle, the rotor rotates quickly so that the oil in the rotor body is cleaned, The impurities in the oil are centrifuged to the inner wall of the rotor, and the oil from the nozzle goes back to the sump. Centrifugal oil filter is characterized by stable performance, there is no need to replace the filter, as long as the regular removal of the rotor, clean the dirt deposited on the rotor wall can be reused. Its life can be equated with the engine. Its lack of structure is complex, high prices, heavy, etc., the use of personnel have a higher technical requirements.
Full-flow oil filter, as described above can be switched, spin-mounted, shunt centrifugal, etc., to enter the system of all oil filtration. Shunt filter only filter oil pump fuel supply 5% -10% of the oil. Split oil filters are fine filters, which are generally combined with full flow. Most of the low-power engines only use full-flow filter, the greater the power of the diesel engine to use more full-flow shunt filter device.