Self-cleaning fuel filter

Abstract

The utility model discloses a self-cleaning fuel filter which comprises an outer shell, a top cover and a bottom cover, the top cover and the bottom cover are detachably connected to the top and the bottom of the outer shell through threads respectively, a plurality of oil inlet holes and an oil outlet hole are formed in the top cover, a connecting ring is fixed to the lower side of the top cover, and a filter element framework is fixed to the lower side of the connecting ring. A filter layer is mounted on the outer side of the filter element framework, a plurality of piezoelectric ceramic pieces are mounted on the inner side of the filter element framework and are arranged up and down, a plurality of supporting rods are fixed to the bottom cover, a plurality of strong magnetic rings are fixed to the supporting rods, a slag discharging opening is formed in the lower side of the bottom cover, and a valve is mounted on the slag discharging opening. According to the utility model, the filter element is cleaned in a mode of combining strong magnetic adsorption and vibration cleaning, and the use effect is better.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a self-cleaning fuel filter. Background Technology

[0002] A filter is an accessory that uses filter paper to filter impurities or gases. It generally refers to automotive filters, which are engine components. Based on different filtration functions, they are categorized as: oil filters, fuel filters (automotive filters, diesel filters, oil-water separators, hydraulic filters), air filters, cabin air filters, etc.

[0003] After prolonged use, a large amount of impurities accumulate on the filter paper inside the filter, causing blockage. Existing filters do not have a self-cleaning function, resulting in a short filter element replacement cycle and wasting resources. Therefore, in view of the above situation, there is an urgent need to develop a self-cleaning fuel filter that uses a combination of strong magnetic adsorption and vibration cleaning to clean the filter element and achieve better results, in order to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a self-cleaning fuel filter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-cleaning fuel filter includes a housing, a top cover, and a bottom cover. The top cover and bottom cover are detachably connected to the top and bottom of the housing via threads, respectively. The top cover has multiple oil inlets and one oil outlet. A connecting ring is fixed to the lower side of the top cover, and a filter element frame is fixed to the lower side of the connecting ring. A filter layer is installed on the outer side of the filter element frame, and multiple piezoelectric ceramic discs are installed on the inner side of the filter element frame, arranged vertically. Multiple support rods are fixed to the bottom cover, and multiple strong magnetic rings are fixed on the support rods. A slag discharge port is installed on the lower side of the bottom cover, and a valve is installed on the slag discharge port.

[0007] Preferably, a first sealing ring is fixed to the outer side of the outer shell, and the first sealing ring is fitted to the top cover.

[0008] Preferably, a second sealing ring is fixed inside the bottom cover, and the second sealing ring is fitted to the bottom of the outer shell.

[0009] Preferably, the filter layer is made of glass fiber filter paper.

[0010] The beneficial effects of this invention are as follows: In use, the inlet and outlet ports of this self-cleaning fuel filter are connected to the fuel system via pipes. Fuel enters through the inlet port, and under fuel pressure, the inlet check valve is forced open downwards. The fuel then passes through the filter layer and is filtered. The filtered fuel exits through the outlet port. Once inside the outer casing, multiple strong magnetic rings adsorb iron impurities from the fuel. During cleaning, piezoelectric ceramic plates vibrate the filter element frame and filter layer, causing impurities attached to the filter layer to fall off. The valve is then opened, allowing the impurities to be discharged with the fuel through the slag outlet. Finally, the bottom cover is unscrewed, and the impurities adsorbed on the strong magnetic rings are removed. In summary, this invention cleans the filter element using a combination of strong magnetic adsorption and vibration cleaning, resulting in better performance. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0012] Figure 2 This utility model Figure 1 A diagram illustrating the split state.

[0013] Figure 3 This utility model Figure 1 Internal sectional view.

[0014] Legend:

[0015] 1. Outer shell; 101. First sealing ring; 2. Top cover; 201. Oil inlet; 202. Oil outlet; 3. Bottom cover; 301. Support rod; 302. Second sealing ring; 303. Slag discharge port; 304. Valve; 4. Strong magnetic ring; 5. Connecting ring; 6. Oil inlet check valve; 7. Filter element frame; 701. Filter layer; 8. Piezoelectric ceramic sheet. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples are given below.

[0018] See Figures 1-3In this embodiment of the utility model, the self-cleaning fuel filter includes a housing 1, a top cover 2, and a bottom cover 3. The top cover 2 and the bottom cover 3 are respectively detachably connected to the top and bottom of the housing 1 by threads. A first sealing ring 101 is fixed to the outer side of the housing 1, and the first sealing ring 101 fits against the top cover 2. A second sealing ring 302 is fixed inside the bottom cover 3, and the second sealing ring 302 fits against the bottom of the housing 1. The top cover 2 is provided with multiple oil inlet holes 201 and one oil outlet hole 202. In use, the oil inlet holes 201 and the oil outlet hole 202 are connected to the fuel system through pipes. A connecting ring 5 is fixed to the lower side of the top cover 2. An oil inlet check valve 6 (which can slide up and down) is slidably installed on the connecting ring 5. A filter element frame 7 is fixed to the lower side of the connecting ring 5. A filter layer 701 is installed on the outer side of the filter element frame 7. Multiple piezoelectric ceramic plates 8 are installed on the inner side of the filter element frame 7. The multiple piezoelectric ceramic plates 8 are arranged vertically. The wires (not shown) of the piezoelectric ceramic plates 8 pass through the filter element frame 7 and the outer shell 1 and extend to the outside. The connection is sealed and fixed with glue. Multiple support rods 301 are fixed on the bottom cover 3. Multiple strong magnetic rings 4 are fixed on the multiple support rods 301. A slag discharge port 303 is installed on the lower side of the bottom cover 3. A valve 304 is installed on the slag discharge port 303.

[0019] The filter layer 701 is made of glass fiber filter paper.

[0020] Working principle: When using this self-cleaning fuel filter, the inlet port 201 and outlet port 202 are connected to the fuel system through pipes. Fuel enters through the inlet port 201, and under the pressure of the fuel, the inlet check valve 6 is forced open downwards. Then, the fuel passes through the filter layer 701 and is filtered. The filtered fuel is discharged from the outlet port 202. After the fuel enters the outer shell 1, multiple strong magnetic rings 4 adsorb the iron impurities in the fuel. During cleaning, the piezoelectric ceramic plate 8 is activated to vibrate the filter element frame 7 and the filter layer 701. Under the action of vibration, the impurities attached to the filter layer 701 fall downwards. Then, the valve 304 is opened, allowing the impurities to be discharged with the fuel from the slag discharge port 303. Finally, the bottom cover 3 is unscrewed to clean the impurities adsorbed on the strong magnetic rings 4.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning fuel filter, characterized in that, The device includes an outer shell (1), a top cover (2), and a bottom cover (3). The top cover (2) and the bottom cover (3) are detachably connected to the top and bottom of the outer shell (1) by threads, respectively. The top cover (2) is provided with multiple oil inlets (201) and an oil outlet (202). A connecting ring (5) is fixed on the lower side of the top cover (2). A filter element frame (7) is fixed on the lower side of the connecting ring (5). A filter layer (701) is installed on the outer side of the filter element frame (7). Multiple piezoelectric ceramic plates (8) are installed on the inner side of the filter element frame (7). The multiple piezoelectric ceramic plates (8) are arranged vertically. Multiple support rods (301) are fixed on the bottom cover (3). Multiple strong magnetic rings (4) are fixed on the multiple support rods (301). A slag discharge port (303) is installed on the lower side of the bottom cover (3). A valve (304) is installed on the slag discharge port (303).

2. The self-cleaning fuel filter according to claim 1, characterized in that, A first sealing ring (101) is fixed on the outside of the outer shell (1), and the first sealing ring (101) is in contact with the top cover (2).

3. The self-cleaning fuel filter according to claim 1, characterized in that, The bottom cover (3) is fixed with a second sealing ring (302), which is in contact with the bottom of the outer shell (1).

4. The self-cleaning fuel filter according to claim 1, characterized in that, The filter layer (701) is made of glass fiber filter paper.

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