Fuel filter core with safety valve

Abstract

The invention discloses a fuel filter core with a safety valve. The safety valve is arranged on the end cover surface of the filter core, under normal conditions, a seal part of the safety valve separates a hydrophobic cavity from the outside, the seal part is pressed and moved under emergency conditions, and the internal and external conduction is turned on; and a filter net is arranged between the hydrophobic cavity and a flow channel to filter fuel. According to the fuel filter core with the safety valve, after a filter layer is blocked, after overcoming the spring pressure of the safety valve, the internal and external pressure difference of a hydrophobic pipe assembly enables the safety valve to open downward, the diesel oil enters the filter core through the safety valve, flows alongan arc-shaped sphere at the top of the hydrophobic pipe assembly into the hydrophobic cavity, impurities and water are filtered from the hydrophobic cavity through the filter net on the hydrophobic pipe assembly, the filtered diesel oil is transmitted to an engine after entering an internal channel of the hydrophobic pipe assembly to ensure the normal operation of the engine, so that a vehicle maintains normal operation. The diesel oil is filtered by the hydrophobic net and then transmitted to the engine, and the damage caused by the impurities entering the engine to the precision parts suchas an oil pump and an injector is avoided.

Description

technical field [0001] The invention relates to the technical field of diesel oil filtration, in particular to a fuel filter element with a safety valve. Background technique [0002] The quality and cleanliness of diesel fuel is a key factor to ensure the performance and service life of the engine. Clean fuel can be burned more fully, and the exhaust gas after combustion contains less harmful gases, which meets the requirements of environmental protection. After the engine uses clean diesel oil, the failure rate is significantly reduced, the efficiency is improved, the maintenance cost is reduced, the fuel consumption is reduced, the fuel saving effect is obvious, and the service life is extended. The diesel filter element is one of the important components to ensure the fuel quality of the diesel engine. The function of the diesel filter element is to filter out the impurities, water and other pollutants in the diesel oil before the diesel oil enters the fuel delivery pump...

AI Technical Summary

Problems solved by technology

[0005] The applicant aims at the disadvantages of the above-mentioned existing diesel filter element that when the filter layer is blocked, the unfiltered fuel directly enters the inside of the drain pipe and is transported to the engine, causing damage to the precision parts of the engine, and provides a safety valve with a reasonable structure. After the filter layer is clogged, the diesel oil will flow in through the safety valve, and then be sent to the engine after being filtered by the filter of the drain pipe assembly, so as to avoid the damage of impurities and water to the precision parts of the engine.

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