Fuel filter and engine with same

Abstract

The invention provides a fuel filter. The fuel filter comprises a filter cover component, and a filter tank component, wherein the filter cover component comprises a filter cover body, an oil inlet tube arranged on the filter cover body, a temperature controller arranged in an inner cavity of the filter cover body and capable of inducting the temperature of the fuel and emitting a temperature signal, a heater capable of heating the fuel, an oil outlet tube arranged on the filter cover body and an oil suction tube; one end of the oil suction tube is communicated with the oil outlet tube and arranged in the inner cavity of the filter cover body and the oil suction tube is capable of extracting clean fuel and exhausting the extracted clean fuel into the oil outlet tube; the filter tank is detachably connected with the filter cover component, and comprises a filter tank body, a combined type filter element arranged on the upper part of the inner cavity of the filter tank body, a water collecting cavity formed in the lower part of the inner cavity of the filter tank body, a water level sensor arranged in the water collecting cavity and capable of inducting the water level height and emitting a water level signal, and a water draining valve. The fuel filter has the beneficial effects of good sealing property, an optimized size design, and high impurity filtering and oil-water separating efficiency. The invention further provides an engine with the fuel filter.

Description

technical field [0001] The invention relates to the field of engines, in particular to a fuel filter for engines using a combined filter element and an engine with the same. Background technique [0002] A fuel filter is a device that supplies clean fuel to the engine. Due to the demand for lightweight vehicles, the fuel filter has gradually developed to have the functions of filtering impurities and separating oil and water. The fuel filter is usually equipped with a fuel temperature controller and a heater to solve the problem of difficult starting of the vehicle at low temperature, and Equipped with a water level sensor and a water drain valve to solve the problem of timely drainage of the fuel filter. [0003] Usually, the heater of the existing fuel filter is installed between the filter cover assembly and the filter tank assembly by means of welding or crimping, and the water level sensor is installed on the bottom of the filter tank assembly through threads. The tot...

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Problems solved by technology

[0003] Usually, the heater of the existing fuel filter is installed between the filter cover assembly and the filter tank assembly by means of welding or crimping, and the water level sensor is installed on the bottom of the filter tank assembly through threads. The total volume of the fuel filter is increased, and additional sealing points are generated, which increases the risk of fuel leakage; in addition, with the increasingly stringent emission standards of automobiles and the improvement of the precision of automobile engine fuel system components, for high-quality The evaluation standards for clean fuel are getting higher and higher, and the demand is increasing. The single filter element used in the existing fuel filter is difficult to meet the standards and demands for high-quality clean fuel.

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