CN203420810U - Diesel filter element end cover - Google Patents

Abstract

The utility model discloses a diesel filter element end cover applied to a diesel oil filter. The diesel filter element end cover comprises an end cover body (1). An upward protrusion (15) is arranged on the peripheral wall of the end cover body, and flow guiding holes (2) are formed in the protrusion. A groove (4) is formed in the upper end of the protrusion, and the end cover body is made of engineering plastics. When diesel is guided by the flow guiding holes in the end cover body, the small flow guiding holes play a role of capillary tubes, and due to different ratios of oil and water, the eccentricity of oil in the diesel and the eccentricity of water in the diesel when the oil and water passes through the flow guiding holes are different, emulsified water in the diesel is separated to be free water, due to the fact that the freedom degree of the free water is larger than that of the emulsified water, the free water can be automatically separated out, the overall oil and water separation efficiency of the filter is improved, the service life of the filter is prolonged, and the quality of the filter is improved.

Description

Diesel filter end cap

technical field

The invention relates to a vehicle filter, in particular to a filter element end cover of a diesel filter.

Background technique

At present, the filter element assembly of a diesel filter includes filter paper, a central tube, and an end cover. The end cover is made of ordinary iron material without special structural design, and can only support the filter paper in the filter element assembly, not Equipped with oil-water separation function for diesel.

Contents of the invention

The purpose of the present invention is to overcome the above disadvantages, and provide a diesel filter element end cover which can not only support the filter paper in the filter element assembly but also have the function of separating oil and water.

The purpose of the present invention is achieved through the following technical solutions: the end cap of the diesel filter element includes an end cap body, the peripheral wall of the end cap body has an upward protrusion, a flow guide hole is provided on the protrusion, and a Concave groove.

After adopting the present invention, when the diesel oil is diverted through the diversion holes on the end cover body, these tiny diversion holes play the role of "capillaries". According to the different specific gravity of oil and water, the oil and water in the diesel oil will The eccentricity of the flow hole is also different, so that the emulsified water in the diesel oil is separated into free water. Since the degree of freedom of the free water is greater than that of the emulsified water, this part of the free water will be automatically separated, thereby improving the overall oil-water filtration of the filter. The separation efficiency prolongs the service life of the filter and improves the quality of the filter product.

Description of drawings

Fig. 1 is a schematic structural view of the end cap of the diesel filter element of the present invention.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a schematic diagram of the structure of the diesel filter element end cover of the present invention applied to a diesel filter.

Detailed ways

The present invention will be described in further detail below with reference to the drawings and embodiments.

Referring to Fig. 1 and Fig. 2, it can be known that the present invention is applied to a diesel filter element end cap of a diesel oil filter, including an end cap body 1 (the material of the end cap body 1 is engineering plastics), and the peripheral wall of the end cap body 1 has An upward protrusion 15 is provided with diversion holes 2 (several pieces), and an upper end of the protrusion 15 is provided with a concave groove 4 (for placing the first inner sealing part 3 of the diesel filter). The material of the end cap body 1 is engineering plastics, such as engineering plastics nylon 66 (but not limited), as long as it meets the mechanical performance requirements of the filter.

As can be seen with reference to Fig. 3, the diesel filter element end cap of the present invention is applied to a diesel oil filter, and the diesel oil filter is composed of a diesel oil filter element end cap 16 (that is, the end cap body 1), a filter element assembly 7 (comprising filter paper, a central tube), Drain valve assembly 5, shell 6, screw plate 9, sealing ring 12, sealing ring fixing plate 10, etc., a second inner seal 11 is installed on the left side between the diesel filter element end cover 16 and screw plate 9, In the concave groove 4 of the diesel filter element end cap 16, and at the right side between the diesel filter element end cap 16 and the screw plate 9, the first internal seal 3 is installed; in the housing 6, and between the housing 6 and the screw plate 9 There is an unfiltered diesel channel 13 between the filter elements 7, and the screw plate 9 has an oil inlet 8 and an oil outlet 14.

The working principle of the diesel filter (and its filter element end cover) is: after the unfiltered diesel oil enters the filter from the oil inlet 8 on the screw plate 9, due to the sealing of the first and second inner seals, the unfiltered Diesel oil will flow into the unfiltered diesel oil channel 13 by the diversion hole 2 of the diesel oil filter element end cover 16, and then flow out through the oil outlet 14 on the screw plate 9 after being filtered by the filter element assembly 7. When the diesel oil passes through the diversion holes 2, these tiny diversion holes 2 play the role of "capillary tubes". Different, so that the emulsified water in diesel oil is separated into free water, because the degree of freedom of free water is greater than that of emulsified water, free water is easier to separate from diesel oil than emulsified water, and this part of free water will be along the inner wall of shell 6 It flows into the drain valve assembly 5 and is discharged, which improves the overall oil-water separation efficiency of the filter.

Claims (1)

1. diesel-oil filter element end cap, comprise end cap body (1), it is characterized in that: the perisporium of described end cap body (1) has projection (15) upwards, is provided with pod apertures (2) in this projection (15), in the upper end of this projection (15), is provided with Baltimore groove (4).

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