All-plastic visible fuel filter
The fuel filter, designed with all-plastic components and a transparent housing, solves the problem of existing fuel filters being unable to detect water accumulation and impurities in a timely manner, achieving the effects of being lightweight, corrosion-resistant, and easy to maintain.
Patent Information
- Application Number
- CN202422987361.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing fuel filters are difficult to detect water accumulation and impurities in a timely manner, and are prone to corrosion, increasing maintenance costs.
The base and transparent shell are made entirely of plastic components. The design incorporates weight-reducing grooves and ribs to enhance strength. The transparent material allows for easy observation of the internal structure, and a drain valve facilitates timely detection and cleaning.
It achieves lightweight design, is not easily corroded, and can promptly detect and resolve blockage issues, reducing maintenance costs.
Smart Images

Figure CN223536462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filters, specifically an all-plastic visible fuel filter. Background Technology
[0002] Fuel filters generally refer to two types of products: diesel filters and gasoline filters. Their function is to filter out harmful particles and moisture from the engine's fuel system to protect the fuel pump, injectors, cylinder liners, piston rings, etc., reducing wear and preventing clogging. Most current fuel filters have a similar structure to oil filters in the engine lubrication system, using a metal housing as the mounting component and load-bearing structure. However, their operating pressure and oil temperature requirements are much lower than those of oil filters.
[0003] Fuel can be contaminated with water during transportation, storage, and even use for various reasons. The presence of water is extremely harmful to the fuel supply system of internal combustion engines, causing rust, wear, jamming, and even worsening the combustion process of diesel fuel. It can also corrode components such as the outer shell that holds the fuel liquid, increasing maintenance costs and causing trouble for users.
[0004] Furthermore, the main method of water removal in fuel filter systems is sedimentation. This can be achieved either by installing a sedimentation chamber at the bottom of the filter or by using a dedicated sedimentation unit. Both types of sedimentation systems typically have a drain valve. Water is released when a certain amount accumulates. However, because the extent of water accumulation is not easily detected, and sensors are prone to malfunction, as the filter is used over time, the surface of the filter elements gradually becomes clogged with impurities, which cannot be detected in time and can lead to more serious consequences. Utility Model Content
[0005] The purpose of this utility model is to provide an all-plastic visible fuel filter that allows for a clear view of the internal filter material, water accumulation, and impurities, achieving the characteristics of visualization, corrosion resistance, and lightweight design.
[0006] To achieve the above objectives, this utility model employs the following technical solution:
[0007] A fully plastic visible fuel filter includes a base and a housing, both made of plastic. One end of the housing is closed and forms a sedimentation chamber. The other end of the housing is fixedly fitted to the base. The housing is a fully transparent component and contains filter media. The base has a mounting platform for fixing the filter. The mounting platform has mounting holes that pass through it. A corresponding metal support is inserted into the mounting holes. The mounting platform has first weight-reducing grooves on both sides and a second weight-reducing groove on the bottom surface. The first and second weight-reducing grooves are horizontally offset.
[0008] The support is a ring-shaped metal part whose shape corresponds to the mounting holes.
[0009] The first weight-reducing groove is provided with multiple sets of X-shaped ribs, which are connected to form a rhomboid structure.
[0010] The thickness of the gap between adjacent sides of the first weight reduction groove on both sides does not exceed 2mm.
[0011] The second weight-reducing groove is provided with radial ribs, which extend outward from the mounting holes.
[0012] The base has a central tube located inside the housing, the outer shell has a cylindrical skeleton, the bottom end of the skeleton has an annular end plate, the skeleton is fixed and covered with filter material, the bottom side of the filter material is positioned on the end plate, the inner wall of the housing has strip ribs extending vertically in its radial direction, the bottom of the strip ribs has an inwardly protruding positioning boss, and the bottom surface of the end plate cooperates with the positioning boss.
[0013] The shell has four wedge-shaped protrusions evenly distributed around its periphery.
[0014] A drain valve is provided eccentrically at the bottom of the housing.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] By using lightweight plastic materials, it features light weight, sufficient strength, and corrosion resistance. Further design incorporates structures to reduce weight and enhance structural strength, increasing localized strength. This reduces the filter's own weight to meet the lightweight requirements of the main unit while maintaining product strength. Simultaneously, the housing is made of a transparent material, facilitating internal observation, maintenance, and cleaning, and allowing for timely detection of blockages and other issues. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the internal structure of this utility model.
[0018] Figure 2 This is a top view of the present invention.
[0019] Figure 3 This is a front view of the present invention.
[0020] Figure 4 This is a bottom view of the utility model.
[0021] Figure 5 This is a schematic diagram of the casing of this utility model.
[0022] Figure 6 This is a schematic diagram of the internal structure of the casing of this utility model.
[0023] The labels shown in the attached diagram:
[0024] 1. Base; 2. Shell; 3. Mounting platform; 4. Support; 5. Mounting hole; 6. First weight-reducing groove; 7. X-shaped rib; 8. Second weight-reducing groove; 9. Radial rib; 10. Strip rib; 11. Positioning boss; 12. End plate; 13. Frame; 14. Central tube; 15. Drain valve. Detailed Implementation
[0025] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0026] Example:
[0027] This product is an improved all-plastic visible fuel filter. Its main structure includes a seat 1 and a housing 2 that are fastened together. The seat 1 and housing 2 are made of different grades of lightweight plastic materials, which are lightweight, have sufficient strength for use, and are not easily corroded.
[0028] The base 1 is equipped with an oil inlet pipe and an oil outlet pipe. The internal chamber passage structure of the base 1 adopts a structure known in the prior art, including an oil inlet chamber, an oil outlet chamber, a pumping chamber, and a central pipe 14. The direction of the passage is controlled by a one-way valve. The oil inlet pipe is connected to the oil inlet chamber, and the oil outlet pipe is connected to the oil outlet chamber, so that the oil phase enters the filter from the oil inlet chamber, rises through the central pipe 14, enters the oil outlet chamber through the pumping chamber, and is discharged from the oil outlet pipe, completing the complete passage of the oil phase.
[0029] On the main structure of the base 1, a mounting platform 3 is designed based on the installation requirements. The mounting platform 3 has two parallel mounting holes 5 running vertically through it. A corresponding support 4 is inserted into the mounting hole 5. The support 4 is a ring-shaped metal part with a shape corresponding to the mounting hole 5 to enhance the local strength.
[0030] The entire base 1 is made of plastic material and is integrally processed and molded. Due to the necessity of the mounting platform 3, the entire base 1 is relatively heavy even as a plastic part. Therefore, a first weight-reducing groove 6 is provided on both sides of the mounting platform 3, and a second weight-reducing groove 8 is provided on the bottom surface of the mounting platform 3. The first weight-reducing groove 6 and the second weight-reducing groove 8 are offset relative to the mounting platform 3.
[0031] The first weight-reducing groove 6 is set in the internal part of the mounting platform 3 without mounting holes. The thickness of the adjacent sides of the first weight-reducing groove 6 on both sides does not exceed 2mm, so as to reduce the material of the mounting platform 3 and retain the central part for load bearing. The first weight-reducing groove 6 is provided with X-shaped ribs 7. Three sets of X-shaped ribs 7 form a diamond-shaped cross support structure to support the space of the hollowed-out part of the first weight-reducing groove 6.
[0032] The second weight-reducing groove 8 covers the area from the mounting hole 5 to the outer part of the mounting platform 3. The second weight-reducing groove 8 is provided with radial ribs 9, which extend outward from the mounting hole 5 as the center.
[0033] Based on the first and second weight-reducing grooves 6 and 8, which are staggered and adjacent to each other, the material and weight of the base 1 are reduced, while the ribs maintain good structural strength. In the part without the mounting hole 5, the first weight-reducing groove 6 with grooves on both sides is used to maintain the flatness of the top and bottom surfaces of the mounting platform 3, providing a stable mounting support surface at both the top and bottom. In the part with the hole, the second weight-reducing groove 8 with a groove at the bottom is used to maintain good strength support in the same direction as the hole.
[0034] One end of the shell 2 is a closed structure, forming a sedimentation chamber, and the opening at the other end is connected and fixed to the base 1.
[0035] The housing 2 is made of a fully transparent and visible plastic material, which is resistant to corrosion from fuel and aqueous solutions. It is characterized by visibility and resistance to rust, and allows for a clear view of the internal water accumulation and impurities. The inner wall of the housing 2 is provided with strip-shaped ribs 10 that extend vertically along its radial direction, and the bottom of the strip-shaped ribs 10 is provided with an inwardly protruding positioning boss 11.
[0036] The central tube 14 of the base 1 is fitted with a cylindrical frame 13. The bottom end of the frame 13 is provided with an annular end plate 12. The frame 13 is fixed around its periphery and covered with filter material. The bottom side of the filter material is positioned on the end plate 12. The bottom surface of the end plate 12 cooperates with the positioning boss 11, and the positioning boss 11 supports and assists in positioning the bottom surface of the end plate 12.
[0037] The shell 2 has four wedge-shaped protrusions evenly distributed around its periphery to prevent it from falling off and to improve the fixing effect.
[0038] The bottom of the housing 2 is provided with two symmetrical reserved holes. A drain valve 15 with a sensor is installed in one of the reserved holes, and the other reserved hole is sealed.
Claims
1. A fully plastic visible fuel filter, characterized in that, The device includes a base and a housing, both made entirely of plastic. One end of the housing is closed and forms a sedimentation chamber. The other end of the housing is fixedly fitted to the base. The housing is a fully transparent component and contains filter media. The base has a mounting platform for fixing the filter. The mounting platform has mounting holes that pass through it. A corresponding metal support is inserted into the mounting holes. The mounting platform has first weight-reducing grooves on both sides and a second weight-reducing groove on the bottom surface. The first and second weight-reducing grooves are offset in the horizontal direction.
2. The all-plastic visible fuel filter according to claim 1, characterized in that, The support is a ring-shaped metal part whose shape corresponds to the mounting holes.
3. The all-plastic visible fuel filter according to claim 1, characterized in that, The first weight-reducing groove is provided with multiple sets of X-shaped ribs, which are connected to form a rhomboid structure.
4. The all-plastic visible fuel filter according to claim 1, characterized in that, The thickness of the gap between adjacent sides of the first weight reduction groove on both sides does not exceed 2mm.
5. The all-plastic visible fuel filter according to claim 1, characterized in that, The second weight-reducing groove is provided with radial ribs, which extend outward from the mounting holes.
6. The all-plastic visible fuel filter according to claim 1, characterized in that, The base has a central tube located inside the housing, and a cylindrical skeleton is fitted around the central tube. The bottom end of the skeleton has an annular end plate. The skeleton is fixed around its periphery and covered with filter material. The bottom side of the filter material is positioned on the end plate. The inner wall of the housing has strip-shaped ribs that extend vertically along its radial direction. The bottom of the strip-shaped ribs has an inwardly protruding positioning boss. The bottom surface of the end plate mates with the positioning boss.
7. The all-plastic visible fuel filter according to claim 1, characterized in that, The shell has four wedge-shaped protrusions evenly distributed around its periphery.
8. The all-plastic visible fuel filter according to claim 1, characterized in that, A drain valve is provided eccentrically at the bottom of the housing.