Centrifugal oil filter is a role of the principle of centrifugal force, the oil mixed with mechanical impurities separated, so that the oil can be purified filter device. Because of its good filter effect, through the ability, dirt capacity, cleaning cycle and other advantages, and easy maintenance, the use of low cost, and thus widely used in diesel engines.

Method of Judging the Working Condition of Centrifugal Oil Filter

The centrifugal oil filter is driven by the reaction force of the oil flow in the oil pump so that the rotor rotates at a high speed of 5500 rpm or more, thereby throwing the impurities in the oil and adhering to the inner wall of the rotor on. Therefore, as long as the rotor can know whether the high-speed rotation, they know whether it can work properly.

Experience judgment method

Start the diesel engine, after 5 minutes of preheat operation, so that the diesel engine oil temperature of at least 75 ℃, oil pressure gauge indicates the pressure of 250 kPa or so, then step off the accelerator pedal, the diesel engine running at high speed for 1 minute Its flameout.

If the centrifugal oil filter is working properly, after the diesel engine is turned off, the rotor can continue to rotate at high speed due to the residual pressure in the oil circuit and the inertia of the rotor. In the vicinity of the filter, Of the buzz, and this sound can last more than 30 seconds. If the buzz duration is shorter than 15 seconds or can not hear the buzzing sound of the rotor, indicating that the centrifugal oil filter is dirty or faulty, should be timely maintenance or repair.

In addition, the centrifugal oil filter and the main oil channel was diverted layout, through its filtered oil directly back to the crankcase, so when its work is not working or not work, the short term will not produce diesel engine Large impact, and therefore do not have to be treated as an emergency fault, the conditions permit when the maintenance or repair, but the time should not be too long.