Metal screen of engine
By installing a protective frame on the metal screen and welding it in place, the problem of steel wire falling off was solved, improving the safety and reliability of the engine.
Patent Information
- Application Number
- CN202520370840.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing metal screens are prone to wire breakage due to vibration and wear, which can mix into the engine oil, causing wear on internal engine components and potential accidents.
The metal screen body is held in place by a protective frame and fixed by welding to ensure that the steel wire does not fall off. It includes a combination structure of rectangular or semi-circular screens and protective frames, which is suitable for engines with different numbers of cylinders.
It effectively prevents the steel wire from falling off, improves engine operating safety, avoids the steel wire from mixing into the engine oil, and protects internal engine components.
Smart Images

Figure CN223781498U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of engine parts, specifically relating to an engine metal screen. Background Technology
[0002] In modern engine design, such as transverse shaft six-cylinder or transverse shaft three-cylinder engines, metal mesh is widely used as an important filtering element in engine oil filtration systems. Typically, the metal mesh has mounting holes at each of its four corners to allow it to be installed at the oil intake port inside the engine oil pan. Its main function is to filter impurities in the engine oil, protecting the engine's internal precision components from wear. However, existing metal meshes have some drawbacks. Because the metal mesh is woven from metal wires, the woven wires are prone to detachment when subjected to vibration and wear. This allows these detached wires to easily mix into the engine oil during operation. As the oil circulates, these wires can cause wear on internal engine components and even lead to serious accidents such as cylinder scoring.
[0003] Therefore, there is a need for an engine metal screen that can effectively prevent the steel wire from falling off. Utility Model Content
[0004] The purpose of this invention is to provide an engine metal screen that can effectively prevent steel wires from falling off, avoid steel wires from mixing into the engine oil, and improve the safety of the engine during operation.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An engine metal screen includes a metal screen body with mounting holes at each of its four corners and protective frames respectively disposed on the upper and lower sides of the metal screen body. The two protective frames cooperate to clamp and wrap the outer edge of the metal screen body, and the protective frames have through holes along their thickness direction corresponding to the four mounting holes of the metal screen body. The outer edge of the metal screen body is fixedly connected to the protective frames on both sides by welding, and the edges of the four mounting holes of the metal screen body are fixedly connected to the protective frames around the through holes on both sides by welding.
[0007] A further improvement of this utility model is that the metal screen body is adapted to a horizontal shaft three-cylinder engine, and the metal screen body is a rectangular screen with mounting holes at each of the four corners.
[0008] A further improvement of the present invention is that the protective plate frame includes horizontal plates located on the front and rear sides of the rectangular screen, vertical plates located on the left and right sides of the rectangular screen, and fan-shaped plates located at the four corners of the rectangular screen that connect the two horizontal plates and the two vertical plates into an integral structure. The four fan-shaped plates of the protective plate frame are provided with through holes corresponding to the mounting holes of the rectangular screen along their thickness direction.
[0009] A further improvement of the present invention is that the metal screen body is adapted to a horizontal shaft six-cylinder engine. The metal screen body includes a rectangular screen with mounting holes at each of the four corners and a semi-circular screen integrally formed with the rectangular screen and bent upward from the front end of the rectangular screen.
[0010] A further improvement of this utility model is that the guard plate frame includes a horizontal plate located on the rear side of the rectangular screen, vertical plates located on the left and right sides of the rectangular screen, an arc-shaped plate located on the front side of the rectangular screen that is vertically perpendicular to the rectangular screen and adapted to the semi-circular screen, and fan-shaped plates set at the four corners of the rectangular screen to connect the horizontal plate, the two vertical plates and the arc-shaped plate into an integral structure. The four fan-shaped plates of the guard plate frame are respectively provided with through holes along their thickness direction that correspond to the mounting holes of the rectangular screen.
[0011] A further improvement of this utility model is that the top of the arc plate is integrally formed with a bending part that bends forward in the horizontal direction, and the bending part is provided with an assembly hole through it in the thickness direction.
[0012] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:
[0013] This utility model of engine metal screen can effectively prevent steel wires from falling off, avoid steel wires from mixing into engine oil, and improve the safety of engine operation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the engine metal screen of Embodiment 1 of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the metal screen body in Embodiment 1 of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the protective frame in Embodiment 1 of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the engine metal screen according to Embodiment 2 of this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the metal screen body in Embodiment 2 of this utility model;
[0019] Figure 6 This is a schematic diagram of the structure after the two guard plate frames are combined in Embodiment 2 of this utility model;
[0020] Figure 7 This is a schematic diagram of the structure of the two protective frame parts in Embodiment 2 of this utility model;
[0021] Among them, 1. Metal screen body, 2. Guard plate frame, 2-1. Horizontal plate, 2-2. Vertical plate, 2-3. Fan-shaped plate, 2-4. Arc-shaped plate, 2-5. Bending part, 2-6. Assembly hole, 3. Through hole, 4. Mounting hole. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to embodiments:
[0023] Example 1
[0024] like Figure 1 As shown, this embodiment provides an engine metal screen, including a metal screen body 1 and two protective frames 2. The protective frames 2 are integrally formed. Mounting holes 4 are respectively provided at the four corners of the metal screen body 1 for fixing the screen. The two protective frames 2 are respectively located on the upper and lower sides of the metal screen body 1. The two protective frames 2 cooperate to clamp and wrap the outer edge of the metal screen body 1. That is, the outer periphery of the metal screen body 1 is clamped and wrapped by two cooperating protective frames 2, thereby effectively preventing the steel wires of the metal screen body 1 from falling off, avoiding steel wires from mixing into the engine oil, and improving the safety during engine operation. Through holes 3 are provided on the protective frames 2 along their thickness direction, corresponding to the four mounting holes of the metal screen body 1; that is, through holes 3 are provided at the four corners of the protective frames 2 along their thickness direction. The outer edge of the metal screen body 1 is fixedly connected to the upper and lower guard plate frames 2 by welding. The edges of the four mounting holes 4 of the metal screen body 1 are fixedly connected to the guard plate frames 2 around the through holes 3 on the upper and lower sides by welding. Preferably, spot welding is used.
[0025] Specifically, the metal screen body 1 is adapted to a horizontal shaft three-cylinder engine, such as Figure 2 As shown, the metal screen body 1 is a rectangular screen with mounting holes 4 at each of its four corners. This metal screen body 1 can be installed at the oil suction port position inside the oil pan of a three-cylinder engine with a horizontal shaft. Figure 3As shown, the protective frame 2 includes two horizontal plates 2-1, two vertical plates 2-2, and four sector plates 2-3. The two horizontal plates 2-1 are located on the front and rear sides of the rectangular screen, respectively; the two vertical plates 2-2 are located on the left and right sides of the rectangular screen, respectively; and the four sector plates 2-3 are located at the four corners of the rectangular screen. Specifically, one horizontal plate 2-1 is connected to one of its left and right vertical plates 2-2, and another horizontal plate 2-1 is connected to one of its left and right vertical plates 2-2, respectively. The four sector plates 2-3 connect the two horizontal plates 2-1 and the two vertical plates 2-2 into a single structure. Therefore, the protective frame 2 is a one-piece rectangular frame structure. The four sector plates 2-3 of the protective frame 2 each have through holes 3 along their thickness direction, corresponding to the mounting holes 4 of the rectangular screen.
[0026] Example 2
[0027] like Figure 4 As shown, this embodiment provides an engine metal screen, which differs from Embodiment 1 in that:
[0028] Metal screen body 1 is compatible with a horizontal shaft six-cylinder engine, such as Figure 5 As shown, the metal screen body 1 includes a rectangular screen with mounting holes 4 at each of its four corners and a semi-circular screen integrally formed with the rectangular screen. The semi-circular screen is bent upward from the front end of the rectangular screen. The metal screen body 1 can be installed at the oil inlet position inside the oil pan of a horizontal six-cylinder engine.
[0029] like Figure 6 and Figure 7 As shown, the protective frame 2 includes a horizontal plate 2-1, two vertical plates 2-2, an arc-shaped plate 2-4 adapted to the semi-circular screen, and four fan-shaped plates 2-3. The horizontal plate 2-1 is located at the rear of the rectangular screen, the two vertical plates 2-2 are located on the left and right sides of the rectangular screen respectively, the arc-shaped plate 2-4 is located at the front of the rectangular screen and is vertically perpendicular to the screen, and the four fan-shaped plates 2-3 are respectively located at the four corners of the screen. Specifically, a fan-shaped plate 2-3 is positioned between the horizontal plate 2-1 and the vertical plates 2-2 on its left and right sides, and a fan-shaped plate 2-3 is positioned between the arc-shaped plate 2-4 and the vertical plates 2-2 on its left and right sides. The four fan-shaped plates 2-3 can connect the horizontal plate 2-1, the two vertical plates 2-2, and the arc-shaped plate 2-4 into a single structure, meaning the protective frame 2 is a one-piece molded structure. The four fan-shaped plates 2-3 of the protective frame 2 each have through holes 3 along their thickness direction, corresponding to the mounting holes 4 of the rectangular screen. Furthermore, in order to better adapt to the transverse six-cylinder engine model, the top of the arc plate 2-4 is integrally formed with a bending part 2-5 that bends forward in the horizontal direction, and the bending part 2-5 is provided with a mounting hole 2-6 through it in the thickness direction.
[0030] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A metal screen for an engine, characterized in that: The device includes a metal screen body (1) with mounting holes (4) at each of its four corners and protective frames (2) on the upper and lower sides of the metal screen body (1). The two protective frames (2) cooperate to clamp and wrap the outer edge of the metal screen body (1), and the protective frames (2) have through holes (3) along their thickness direction corresponding to the four mounting holes of the metal screen body (1). The outer edge of the metal screen body (1) is fixedly connected to the protective frames (2) on both sides by welding. The edges of the four mounting holes (4) of the metal screen body (1) are fixedly connected to the protective frames (2) around the through holes (3) on both sides by welding.
2. The engine metal screen according to claim 1, characterized in that: The metal screen body (1) is adapted to a horizontal shaft three-cylinder engine. The metal screen body (1) is a rectangular screen with mounting holes (4) at each of the four corners.
3. The engine metal screen according to claim 2, characterized in that: The protective frame (2) includes horizontal plates (2-1) located on the front and rear sides of the rectangular screen, vertical plates (2-2) located on the left and right sides of the rectangular screen, and fan-shaped plates (2-3) located at the four corners of the rectangular screen, which connect the two horizontal plates (2-1) and the two vertical plates (2-2) into a single structure. The four fan-shaped plates (2-3) of the protective frame (2) are provided with through holes (3) corresponding to the mounting holes (4) of the rectangular screen along their thickness direction.
4. The engine metal screen according to claim 1, characterized in that: The metal screen body (1) is adapted to a horizontal shaft six-cylinder engine. The metal screen body (1) includes a rectangular screen with mounting holes (4) at each of the four corners and a semi-circular screen integrally formed with the rectangular screen and bent upward from the front end of the rectangular screen.
5. An engine metal screen according to claim 4, characterized in that: The protective frame (2) includes a horizontal plate (2-1) located on the rear side of the rectangular screen, vertical plates (2-2) located on the left and right sides of the rectangular screen, an arc plate (2-4) located on the front side of the rectangular screen and adapted to the semi-circular screen, and fan-shaped plates (2-3) set at the four corners of the rectangular screen to connect the horizontal plate (2-1), the two vertical plates (2-2) and the arc plate (2-4) into a whole structure. The four fan-shaped plates (2-3) of the protective frame (2) are respectively provided with through holes (3) corresponding to the mounting holes (4) of the rectangular screen along their thickness direction.
6. The engine metal screen according to claim 5, characterized in that: The top of the arc plate (2-4) is integrally formed with a bent portion (2-5) that bends forward in the horizontal direction, and the bent portion (2-5) is provided with an assembly hole (2-6) through it in the thickness direction.