Construction machinery fuel pre-filter device
A construction machinery and pre-filtration technology, which is applied in the direction of mechanical equipment, charging systems, engine components, etc., can solve the problems of discharging sundries and moisture, and achieve the effects of prolonging the service life, reducing equipment maintenance, and prolonging the maintenance cycle
Active Publication Date: 2015-11-25
云南交投集团云岭建设有限公司
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Problems solved by technology
[0004] In order to solve the above problems, the present invention provides a fuel pre-filter device for engineering machinery to solve the problem of discharging sundries and moisture, prolong the replacement cycle of the system filter element, reduce fuel consumption, prolong the service life of the injector, and keep the injection System cleaning keeps the injection system in good working condition for a long time
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Embodiment Construction
[0017] Such as figure 1 As shown, the construction machinery fuel pre-filter device is installed on the CAT330BL excavator. The total capacity of the main fuel tank of this model is: 370L, and the rated DC power supply is: 24V. Construction machinery itself is equipped with a set of fuel filtration system, which can only meet foreign fuel standards, but domestic No. 0 diesel oil has many impurities, and this set of fuel filtration system cannot filter the fuel with a lot of impurities. Therefore, it is necessary to install a fuel pre-filtration system, which is very important to the selection of the fuel delivery pump. If the selection of the fuel delivery pump does not match the fuel capacity, insufficient fuel supply, long filtration time, excessive or too small flow, and power failure may occur. If it is too large or too small, the filter element is clogged, the power consumption is large, the oil pump overheats and burns the motor, etc.
[0018] Available oil-water separ...
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An engineering machinery fuel oil pre-filtering device comprises a main fuel tank (5), a fuel delivery pump (4), an oil water separator (3), an auxiliary fuel tank (2) and an engine (1), wherein an oil outlet located at the bottom of the main fuel tank is connected with the fuel delivery pump through oil tubes, and then connected to the oil water separator through the fuel delivery pump, the oil water separator is connected to the auxiliary fuel tank through oil tubes, fuel oil in the auxiliary fuel tank is transported to the engine through oil tubes, and excess fuel oil is transported back to the main fuel tank through an overflow oil tube. The device can effectively filter out water or impurities in the fuel oil so as to prevent a fuel spray nozzle of the engine from being eroded by the water or the impurities, and furthermore service life of the fuel spray nozzle is prolonged, the maintenance period of the engine is prolonged appropriately, and maintenance cost of the device is reduced.
Description
technical field [0001] The invention relates to a construction machinery fuel pre-filter device. Background technique [0002] In order to meet the increasingly stringent diesel engine emission and noise regulations, EFI diesel engines are widely used in construction machinery. The EFI diesel engine adopts a high-pressure injection system, and the injection pressure is usually 120-160Mpa or higher, and the precision of each plunger couple and external parts in the high-pressure injection system is very high, and the diameter of the nozzle hole is small, which is suitable for diesel oil. Sediment in is more sensitive. Impurities in diesel oil impact the fuel injector at high speed under the action of high pressure, which can easily cause wear and blockage of the fuel injector, making it unable to work normally, resulting in increased fuel consumption of the diesel engine, decreased power of the diesel engine, greater noise, and unstable idling speed , emissions increase and...
Claims
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IPC IPC(8): F02M37/04F02M37/22
Inventor 岳锐峰姚永茂马永刚喻正昌石建昆马义雄王艺璇
Owner 云南交投集团云岭建设有限公司