An engine oil outlet pipe impurity interception assembly

By designing an engine oil outlet pipe impurity interception component with a multi-stage filtration structure, the problem of insufficient single-stage filtration in existing technologies has been solved. This achieves efficient interception of large and small particles and impurities, reduces wear and clogging risks, and improves fuel cleanliness and power output stability.

CN224592253UActive Publication Date: 2026-08-04JIANGSU TENGCHI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TENGCHI TECH CO LTD
Filing Date
2025-10-27
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing engine fuel outlet pipe impurity interception components lack multi-stage fine filtration and anti-clogging capabilities. As a result, single-stage filtration is prone to failing to intercept large and small particles due to the single pore size of the filter element. This leads to substandard fuel cleanliness, easy clogging of fuel injectors, wear of the fuel pump, poor filtration accuracy, and insufficient interception efficiency.

Method used

Design an impurity interceptor body including a support grid, a secondary filter box, an inlet, an outer baffle, a primary filter box, an outlet, and a lower filter box to achieve multi-stage filtration. The primary filter box intercepts large particles, the secondary filter box's gradient design refines the filtration, and the candle filter element captures tiny impurities, forming a three-stage filtration chain of coarse → medium → fine, thus distributing the filtration load.

Benefits of technology

It achieves multi-stage fine filtration and anti-clogging capabilities, reducing the need for frequent replacements, preventing impurities from entering the fuel injectors and fuel pump, reducing wear and clogging risks, and improving fuel cleanliness and power stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of engine oil outlet pipe, specifically relates to an engine oil outlet pipe impurity interception assembly, including impurity interceptor body, the main part for engine oil outlet pipe impurity interception, inner slide groove, set up in the inside of impurity interceptor body, for the auxiliary replacement, and the inside of inner slide groove is connected with inner sliding block who slides, the outside fixed mounting of inner sliding block has the bearing grid. The utility model is provided with bearing grid, two -stage filter box, liquid inlet, peripheral baffle, primary filter box, liquid outlet and lower filter box, when using the engine oil outlet pipe impurity interception assembly, the oil liquid in the impurity interceptor body enters primary filter box first, then relies on the oil liquid from the liquid outlet and enters two -stage filter box through liquid inlet again, two -stage filter box and primary filter box are in the ladder shape to the oil liquid and carry out the filtration, then the oil liquid after two -stage filter box enters lower filter box, and the oil liquid penetrates the candle type filter core in the center of lower filter box to complete three times filtration.
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Description

Technical Field

[0001] This utility model relates to the field of engine oil outlet pipes, specifically to an engine oil outlet pipe impurity interception component. Background Technology

[0002] The engine fuel outlet pipe is a piping system that connects core components such as the fuel tank, fuel pump, and fuel injectors. It is responsible for delivering fuel from the fuel storage device to the engine combustion chamber. Its design must meet engineering requirements such as high pressure resistance, corrosion resistance, resistance to fuel oxidation products, and vibration resistance to ensure that fuel does not leak, clog, or degrade in performance during flow. The engine fuel outlet pipe impurity interception component is the first line of defense for fuel cleanliness. The impurity interception component is a mechanical device installed on the fuel outlet pipe. It uses physical structures such as filters, centrifugal separators, and magnetic modules to intercept impurities such as metal debris, gum, and moisture in the fuel, preventing them from entering precision components and causing blockage, wear, or performance degradation.

[0003] Existing engine fuel outlet impurity interception components lack multi-stage fine filtration and anti-clogging capabilities during use. This can lead to single-stage filtration being unable to intercept large and small particles due to the uniform pore size of the filter element, resulting in substandard fuel cleanliness, accelerated fuel injector clogging, and fuel pump wear. Furthermore, poor filtration accuracy can also easily cause insufficient interception efficiency and a high risk of clogging.

[0004] Therefore, it is necessary to invent an engine oil outlet pipe impurity interception component to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an engine fuel outlet pipe impurity interception component. Through a supporting mesh, secondary filter box, inlet, outer baffle, primary filter box, outlet, and lower filter box, this component achieves multi-stage fine filtration and anti-clogging capabilities. This design allows the primary filter box to intercept large particles, the secondary filter box to further refine filtration through a gradient design, and the candle filter element to capture tiny impurities, forming a three-stage filtration chain of coarse → medium → fine. This multi-stage filtration distributes the filtration load, reducing the need for frequent replacements. Furthermore, high-precision filtration prevents impurities from entering components such as fuel injectors and fuel pumps, reducing wear and clogging that can lead to power loss. This addresses the problem in existing engine fuel outlet pipe impurity interception components that lack multi-stage fine filtration and anti-clogging capabilities. Single-stage filtration, due to its limited filter element pore size, is unable to intercept large and small particles, resulting in substandard fuel cleanliness, accelerated fuel injector clogging, and fuel pump wear. Poor filtration accuracy also leads to insufficient interception efficiency and a high risk of clogging.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an engine oil outlet pipe impurity interception assembly, including an impurity interceptor body, which is the main body for intercepting impurities in the engine oil outlet pipe; An inner slide groove is formed inside the impurity interceptor body to assist in replacement. An inner slider is slidably connected inside the inner slide groove. A bearing mesh is fixedly installed on the outside of the inner slider. A secondary filter box is fixedly installed above the bearing mesh. An inlet is provided on one side of the upper part of the secondary filter box. An outer baffle is fixedly installed above the secondary filter box to prevent oil from overflowing. A primary filter box is fixedly installed on the other side above the secondary filter box. The primary filter box has an outlet on its exterior. A lower filter box is threadedly connected to the interior of the impurity interceptor body. A threaded groove is formed at the bottom of the lower filter box for replacement and installation. A threaded tube is connected to the inside of the threaded groove. A candle plate is fixedly installed on the top of the threaded tube. A candle filter element is fixedly installed above the candle plate. A guide plate is fixedly installed around the inner wall of the lower filter box.

[0007] Preferably, an inlet and outlet oil pipe is fixedly provided on the upper and lower parts of the impurity interceptor body, and a first clamping pipe clamp is sleeved on the outside of the inlet and outlet oil pipe.

[0008] Preferably, the outer two sides of the first clamping tube clamp are threaded with double-ended bolts, and the tail end of the double-ended bolts is threaded to a second clamping tube clamp.

[0009] Preferably, the exterior of the impurity interceptor body is threaded with fixing bolts, and the front end of the fixing bolts is threadedly connected to an outer sealing plate.

[0010] Preferably, the candle filter element is threadedly connected to the lower filter box, and the candle filter element is perpendicular to the internal center of the lower filter box.

[0011] Preferably, the number of the guide plates is set to multiple, and the multiple guide plates are distributed at equal intervals on the lower filter box.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This utility model is equipped with a support mesh, a secondary filter box, an inlet, an outer baffle, a primary filter box, an outlet, and a lower filter box. When using this engine oil outlet pipe impurity interception component, the oil entering the impurity interceptor body first enters the primary filter box, and then, by gravity, the oil exits from the outlet and enters the secondary filter box through the inlet. The secondary filter box and the primary filter box filter the oil in a stepped manner. Then, the oil that has passed through the secondary filter box enters the lower filter box, and the oil passes through the candle filter element in the center of the lower filter box to complete three-stage filtration. This gives the engine oil outlet pipe impurity interception component the ability of multi-stage fine filtration and anti-clogging. This design allows the primary filter box to intercept large particles, the secondary filter box to further refine the filtration through a gradient design, and the candle filter element to capture small impurities, forming a coarse → medium → fine three-stage filtration chain. This multi-stage filtration distributes the filtration load, reducing the need for frequent replacement. Moreover, high-precision filtration can also prevent impurities from entering components such as fuel injectors and fuel pumps, reducing wear and clogging that can lead to a decrease in power. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the first clamping pipe clamp structure of this utility model; Figure 3 This is a schematic diagram of the load-bearing grid structure of this utility model; Figure 4 This is a schematic diagram of the primary filter cartridge structure of this utility model; Figure 5 This is a schematic diagram of the lower filter box structure of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Impurity interceptor body; 2. Inlet and outlet oil pipes; 3. First clamping clamp; 4. Double-ended bolt; 5. Second clamping clamp; 6. Inner sliding groove; 7. Inner sliding block; 8. Bearing mesh; 9. Secondary filter box; 10. Liquid inlet; 11. Outer baffle; 12. Primary filter box; 13. Liquid outlet; 14. Fixing bolt; 15. Outer sealing plate; 16. Lower filter box; 17. Threaded groove; 18. Threaded pipe; 19. Candle plate; 20. Candle filter element; 21. Guide plate. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-5 The engine oil outlet pipe impurity interception assembly shown includes an impurity interceptor body 1, which is the main body for intercepting impurities in the engine oil outlet pipe. The inner slide groove 6 is located inside the impurity interceptor body 1 and is used to assist in replacement. The inner slide groove 6 is slidably connected to the inner slide block 7. The inner slide block 7 is fixedly installed on the outside of the inner slide block 7. The secondary filter box 9 is fixedly installed above the support grid 8. The liquid inlet 10 is opened on one side of the upper part of the secondary filter box 9. The outer baffle 11 is fixedly installed above the secondary filter box 9 to prevent oil from overflowing. The primary filter box 12 is fixedly installed on the other side above the secondary filter box 9. The primary filter box 12 has an outlet 13 on its outside. The lower filter box 16 is threadedly connected to the inside of the impurity interceptor body 1. A threaded groove 17 is formed at the bottom of the lower filter box 16 for replacement and installation. A threaded tube 18 is connected to the threaded groove 17 internally. A candle plate 19 is fixedly installed on the top of the threaded tube 18. A candle filter element 20 is fixedly installed above the candle plate 19. A guide plate 21 is fixedly installed around the inner wall of the lower filter box 16. The oil entering the impurity interceptor body 1 first enters the primary filter box 12. Then, by gravity, the oil exits from the outlet 13 and enters the secondary filter box 9 through the inlet 10. The secondary filter box 9 and the primary filter box 12 filter the oil in a stepped manner. Then, the oil that has passed through the secondary filter box 9 enters the lower filter box 16. The oil passes through the candle filter element 20 in the center of the lower filter box 16 to complete three filtrations.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, oil inlet and outlet pipes 2 are fixedly installed on the upper and lower parts of the impurity interceptor body 1. A first clamping pipe clamp 3 is fitted on the outside of the oil inlet and outlet pipes 2. The oil inlet and outlet pipes 2 are used to connect with the engine oil outlet pipe, so that the oil enters the impurity interceptor body 1 for filtration and then flows out. Double-ended bolts 4 are threaded through both sides of the outside of the first clamping pipe clamp 3. The tail end of the double-ended bolts 4 is threaded to the second clamping pipe clamp 5. The first clamping pipe clamp 3 and the second clamping pipe clamp 5 are used to enhance the stability of the connection between the oil inlet and outlet pipes 2 and the engine oil outlet pipe. Fixing bolts 14 are threaded through the outside of the impurity interceptor body 1. The front end of the fixing bolts 14 is threaded to the outer sealing plate 15. The outer sealing plate 15 can be removed after long-term use, so as to open the impurity interceptor body 1 and clean the internal components.

[0019] like Figure 1 , Figure 4 and Figure 5As shown, the candle filter element 20 is threadedly connected to the lower filter box 16. The candle filter element 20 is perpendicular to the internal center of the lower filter box 16. The first-stage filter box 12 intercepts large particles, and the second-stage filter box 9 further refines the filtration through a gradient design. The candle filter element 20 captures tiny impurities to form a three-stage filtration chain of coarse → medium → fine. The number of guide plates 21 is set to multiple, and the multiple guide plates 21 are evenly distributed on the lower filter box 16. The guide plates 21 are located around the inside of the lower filter box 16, causing the oil entering the lower filter box 16 to form a vortex, which can accelerate the filtration speed of the oil by the candle filter element 20.

[0020] The working principle of this practical device is as follows: First, take out the engine oil outlet pipe impurity interception assembly. At the bottom of the engine oil outlet pipe, fit the inlet / outlet pipe 2 onto the outside of the engine oil outlet pipe. Then, clamp the inlet / outlet pipe 2 to the engine oil outlet pipe using the first clamping clamp 3, the double-ended bolt 4, and the second clamping clamp 5, thus completing the installation. Next, the oil enters the impurity interceptor body 1 and first enters the primary filter box 12. Under gravity, the oil exits from the outlet 13 and then enters the secondary filter box 9 through the inlet 10. The secondary filter box 9 and the primary filter box 12 form a stepped structure to filter the oil. The oil then enters the lower filter box 16. The guide plate 21 is located around the inside of the lower filter box 16, causing the oil entering the lower filter box 16 to form a vortex, which can accelerate the flow of the oil. The candle filter element 20 filters the oil at a high speed. The oil then passes through the candle filter element 20 in the center of the lower filter box 16, thus completing three filtrations. The filtered oil then flows out through the inlet and outlet oil pipes 2 at the bottom. This design gives the engine oil outlet pipe impurity interception component a multi-stage fine filtration and anti-clogging capability. The first-stage filter box 12 intercepts large particles, the second-stage filter box 9 further refines the filtration through a gradient design, and the candle filter element 20 captures small impurities, forming a three-stage filtration chain of coarse → medium → fine. This multi-stage filtration distributes the filtration load and reduces the need for frequent replacements. After completing the installation and use of the entire engine oil outlet pipe impurity interception component according to the above operations, routine maintenance of the device is required. This completes the usage process of the engine oil outlet pipe impurity interception component.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An engine oil outlet pipe impurity interception assembly, characterized in that: include Impurity interceptor body (1), the main body used for intercepting impurities in the engine oil outlet pipe; An inner slide groove (6) is opened inside the impurity interceptor body (1) for auxiliary replacement. An inner slide block (7) is slidably connected inside the inner slide groove (6). A bearing grid (8) is fixedly installed on the outside of the inner slide block (7). A secondary filter box (9) is fixedly installed above the bearing grid (8). An inlet (10) is opened on one side above the secondary filter box (9). An outer baffle (11) is fixedly installed above the secondary filter box (9) to prevent oil from overflowing. A primary filter box (12) is fixedly installed on the other side above the secondary filter box (9). An outlet (13) is opened on the outside of the primary filter box (12). A lower filter box (16) is threadedly connected to the inside of the impurity interceptor body (1). A threaded groove (17) is provided at the bottom of the lower filter box (16) for replacement and installation. The threaded groove (17) is internally threaded with a threaded tube (18). A candle plate (19) is fixedly installed on the top of the threaded tube (18). A candle filter element (20) is fixedly installed above the candle plate (19). A guide plate (21) is fixedly installed around the inner wall of the lower filter box (16).

2. The engine oil outlet pipe impurity interception assembly according to claim 1, characterized in that: The impurity interceptor body (1) is fixedly provided with an inlet and outlet oil pipe (2) on the upper and lower parts of the outside, and a first clamping pipe clamp (3) is sleeved on the outside of the inlet and outlet oil pipe (2).

3. The engine oil outlet pipe impurity interception assembly according to claim 2, characterized in that: The first clamping tube clamp (3) has double-ended bolts (4) threaded through its outer two sides, and the tail end of the double-ended bolts (4) is threaded to a second clamping tube clamp (5).

4. The engine oil outlet pipe impurity interception assembly according to claim 1, characterized in that: The impurity interceptor body (1) is threaded with fixing bolts (14) on its exterior, and the front end of the fixing bolts (14) is threaded with an outer sealing plate (15).

5. The engine oil outlet pipe impurity interception assembly according to claim 1, characterized in that: The candle filter element (20) is threadedly connected to the lower filter box (16), and the candle filter element (20) is perpendicular to the inner center of the lower filter box (16).

6. The engine oil outlet pipe impurity interception assembly according to claim 1, characterized in that: The number of the guide plates (21) is set to multiple, and the multiple guide plates (21) are distributed at equal intervals on the lower filter box (16).