Engine filter assembly structure

Abstract

The application discloses an engine filter assembly structure, which comprises a filter joint used for being connected with an oil inlet of an oil pump, an oil suction pipe, one end of which is communicated with the filter joint, an oil suction disc structure comprising an upper end of the oil suction disc and a lower end of the oil suction disc, the upper end of the oil suction disc is communicated with the other end of the oil suction pipe, the lower end of the oil suction disc is two independent oil suction disc units, which are symmetrically arranged on both sides of the oil suction pipe, and a filter screen is fixedly connected to the lower end of each oil suction disc unit, and is used for filtering impurities in the engine oil, a filter fixing support is used for fixing the filter assembly on an engine body.

Description

Technical Field

[0001] This invention relates to the technical field of engines, and more particularly to an engine filter assembly structure. Background Technology

[0002] The oil strainer is located in the engine lubrication system. Upstream of it is the oil pump, and downstream are the engine components that require lubrication, including the crankshaft, connecting rods, camshaft, turbocharger, and piston rings. The main function of the oil strainer is to filter out harmful impurities from the engine oil, providing clean oil to these moving parts, achieving effective lubrication, cooling, and cleaning, thereby extending the service life of these components.

[0003] In view of the fact that the oil pan of current four-wheel drive tractors has a central clearance, the existing filter structure may not be able to draw oil when the tractor is going uphill, downhill, or tilting left or right. Therefore, we propose an engine filter assembly structure to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the structure of the current engine filter assembly, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an engine filter assembly structure that achieves effective lubrication, cooling and cleaning, thereby extending the service life of these parts.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an engine filter assembly structure, comprising: The filter strainer connector is used to connect to the oil pump inlet. The oil suction pipe is connected at one end to the filter connector. The oil suction plate structure includes an upper oil suction plate and a lower oil suction plate. The upper oil suction plate is connected to the other end of the oil suction pipe. The lower oil suction plate consists of two independent oil suction plate units, which are symmetrically arranged on both sides of the oil suction pipe. Each oil suction plate unit has a filter screen fixedly connected inside its lower end for filtering impurities in the oil. A filter mounting bracket is used to secure the filter assembly to the engine block.

[0008] As a preferred embodiment of the engine filter assembly structure of the present invention, the lower end of the oil suction plate unit adopts a tapering structure, and the tapering structure gradually shrinks towards the oil pan to form a sealing edge.

[0009] As a preferred embodiment of the engine filter assembly structure of the present invention, the sealing edge of the constriction structure is made of a flexible or elastic material to form a seal when in contact with the oil pan.

[0010] As a preferred embodiment of the engine filter assembly structure of the present invention, the filter screen is a metal mesh or a synthetic fiber mesh, and its mesh size ranges from 0.1 mm to 0.5 mm.

[0011] As a preferred embodiment of the engine filter assembly structure of the present invention, an O-ring is provided between the filter connector and the oil pump inlet.

[0012] As a preferred embodiment of the engine filter assembly structure of the present invention, the filter fixing bracket includes at least two fixing legs, each leg having a mounting hole for fixing to the engine body by bolts.

[0013] As a preferred embodiment of the engine filter assembly structure of the present invention, a vibration damping pad is provided between the fixed support and the oil suction pipe.

[0014] As a preferred embodiment of the engine filter assembly structure of the present invention, the oil suction pipe is a metal pipe or an oil-resistant rubber pipe, and its inner diameter ranges from 8mm to 15mm.

[0015] As a preferred embodiment of the engine filter assembly structure of the present invention, wherein: when the engine tilt angle does not exceed 30°, the lower end of at least one oil suction plate unit is always immersed in the engine oil.

[0016] The beneficial effects of this invention are: 1. In response to the current four-wheel drive tractor's oil pan having a central clearance, this oil filter component features a double suction cup structure. It can draw oil when the engine is going uphill, downhill, or tilting left or right, providing clean oil to the moving parts, achieving effective lubrication, cooling, and cleaning, thereby extending the service life of these parts.

[0017] 2. The lower end of the oil suction tray adopts a tapered structure: A. Preventing oil leakage: The tapered design ensures a tight seal between the suction cup and the oil pan or other components, preventing oil leakage during the suction process. This helps maintain the cleanliness and efficient operation of the oil system.

[0018] B. Improved oil suction efficiency: The tapered design increases the contact area between the suction cup and the oil, thereby improving oil suction efficiency. This helps ensure that the oil pump can continuously and stably obtain oil, avoiding cavitation.

[0019] C. Enhanced Structural Stability: The tapered design enhances the structural stability of the suction cup, allowing it to maintain good working condition even under engine vibration or tilting conditions. This helps extend the service life of the oil filter.

[0020] D. Easy to install and maintain: The tapered design makes the suction cup easier to install and remove, thus simplifying the maintenance of the oil filter. This helps reduce maintenance costs and time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the engine filter assembly of the present invention.

[0022] Figure 2 This is a side view of the engine filter assembly structure of the present invention. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0027] Reference Figures 1-2 An engine filter assembly structure is provided, comprising: Filter connector 1 is used to connect to the oil pump inlet; Oil suction pipe 2, one end of which is connected to filter connector 1; The oil suction plate structure includes an upper oil suction plate 3 and a lower oil suction plate 4. The upper oil suction plate 3 is connected to the other end of the oil suction pipe 2. The lower oil suction plate 4 consists of two independent oil suction plate units, which are symmetrically arranged on both sides of the oil suction pipe 2. Each oil suction plate unit has a filter screen 5 fixedly connected inside its lower end for filtering impurities in the oil. The filter mounting bracket 6 is used to fix the filter assembly to the engine block.

[0028] The lower end of the oil suction plate unit adopts a tapering structure, which gradually shrinks towards the oil pan to form a sealing edge.

[0029] Specifically, the sealing edge of the sealing structure is made of a flexible or elastic material to form a seal when in contact with the oil pan.

[0030] The filter screen is a metal mesh or a synthetic fiber mesh with a mesh size ranging from 0.1 mm to 0.5 mm. An O-ring is provided between the filter connector 1 and the oil pump inlet.

[0031] The filter mounting bracket 6 includes at least two fixed legs, each with a mounting hole for fixing to the machine body with bolts. A vibration damping pad is provided between the fixed legs and the oil suction pipe. The oil suction pipe 2 is a metal pipe or an oil-resistant rubber pipe with an inner diameter ranging from 8mm to 15mm. When the engine tilt angle does not exceed 30°, the lower end of at least one oil suction plate unit is always immersed in the engine oil.

[0032] Example 1 This embodiment provides an engine filter assembly structure suitable for four-wheel drive tractors and other work vehicles. The structure includes: Filter strainer connector 1: Made of forged steel, with external threads at the end for threaded connection to the oil pump inlet. An O-ring (not shown in the figure) is installed between the connector and the oil pump to ensure a tight seal.

[0033] Oil suction pipe: consists of two parallel corrugated metal pipes with an inner diameter of 10mm, connected at both ends to the filter housing connector 1 and the upper end 3 of the oil suction plate, respectively. The corrugated pipe design can accommodate engine vibration and installation deviations.

[0034] Oil suction plate: This includes an upper oil suction plate 3 and a lower oil suction plate 4. The upper oil suction plate 3 is a flange structure, welded to the oil suction pipe. The lower oil suction plate 4 consists of two independent oil suction plate units, symmetrically arranged on both sides of the oil suction pipe. The lower end of each oil suction plate unit adopts a tapered structure, that is, its edge tapers inward to form a conical sealing lip. This sealing lip is made of oil-resistant fluororubber, which is elastic and can deform and form a seal when in contact with the oil pan to prevent oil leakage.

[0035] Filter 5: Made of stainless steel woven mesh with a mesh size of 0.2mm, it is welded and fixed inside the lower end of each oil suction plate unit to filter impurities in the oil.

[0036] Filter collector mounting bracket 6: This is an L-shaped steel bracket, bolted to the side of the engine block. The bracket is equipped with vibration-damping rubber pads to absorb vibration and improve structural stability.

[0037] Working principle: When the engine starts, the oil pump generates negative pressure, drawing oil from the oil pan through two suction cup units. Due to the symmetrical design of the dual suction cups, at least one suction cup unit remains immersed in the oil when the tractor is tilted uphill, downhill, or sideways (tilt angle ≤ 30°), preventing cavitation. The sealing lip of the tapered structure ensures the suction cups adhere closely to the oil pan surface, improving oil suction efficiency and preventing leakage.

[0038] Beneficial effects: This embodiment solves the problem of insufficient oil suction in existing filter collectors when the vehicle is tilted by using a double suction cup structure; the constriction structure combines sealing, improved oil suction efficiency, and vibration stability; the overall structure is simple and easy to install and maintain.

[0039] Example 2 This embodiment optimizes the finishing structure and materials based on Embodiment 1 to further improve performance: Variation in the closing structure: The lower closing structure of the oil suction plate unit is changed to a "multi-stage stepped closing," meaning three converging steps are formed sequentially from the side wall of the oil suction plate to the bottom. Each step is 2mm high, and the angle between the step plane and the horizontal plane is 15°. This design further increases the transition area between the suction plate and the engine oil, allowing for a smoother flow of engine oil under inclined conditions, reducing turbulence and air bubbles.

[0040] Material optimization: The oil suction pipe adopts a metal composite pipe lined with polytetrafluoroethylene, which maintains strength and reduces oil flow resistance; the filter screen is changed to a multi-layer composite structure, including a layer of stainless steel coarse filter screen (0.5mm mesh) and a layer of polyester fiber fine filter screen (0.1mm mesh), which improves filtration efficiency through layered filtration.

[0041] Enhanced mounting bracket: The filter mounting bracket is made of magnesium-aluminum alloy casting, which reduces the weight by 30%, and a disc spring is added at the connection between the bracket and the machine body to further suppress high-frequency vibration.

[0042] Working principle: The multi-stage stepped inlet creates a more stable oil flow channel when the engine is tilted, and together with the composite filter, ensures a continuous supply of clean oil under different operating conditions. The composite oil suction pipe reduces pressure loss and improves oil pumping efficiency.

[0043] Beneficial effects: This embodiment further enhances oil absorption stability, filtration effect and lightweight by refining the structure (multi-stage closing) and optimizing materials, making it suitable for engineering machinery with more stringent requirements for vibration and tilting.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A structure for an engine filter assembly, characterized in that, include: Filter connector 1 is used to connect to the oil pump inlet; The oil suction pipe 2 is connected at one end to the filter connector 1; The oil suction plate structure includes an upper oil suction plate 3 and a lower oil suction plate 4. The upper oil suction plate 3 is connected to the other end of the oil suction pipe 2. The lower oil suction plate 4 consists of two independent oil suction plate units, which are symmetrically arranged on both sides of the oil suction pipe 2. Each oil suction plate unit has a filter screen 5 fixedly connected inside its lower end for filtering impurities in the oil. The filter mounting bracket 6 is used to fix the filter assembly to the engine block.

2. The engine filter assembly structure according to claim 1, characterized in that: The lower end of the oil suction plate unit adopts a tapering structure, which gradually shrinks towards the oil pan to form a sealing edge.

3. The engine filter assembly structure according to claim 2, characterized in that: The sealing edge of the closing structure is made of a flexible or elastic material to form a seal when in contact with the oil pan.

4. The engine filter assembly structure according to claim 3, characterized in that: The filter screen is a metal mesh or a synthetic fiber mesh, with a mesh size ranging from 0.1 mm to 0.5 mm.

5. The engine filter assembly structure according to claim 1, characterized in that: An O-ring is provided between the filter connector 1 and the oil pump inlet.

6. The engine filter assembly structure according to claim 1, characterized in that: The filter collector mounting bracket 6 includes at least two mounting legs, each with a mounting hole for fixing to the machine body with bolts.

7. The engine filter assembly structure according to claim 6, characterized in that: A vibration damping pad is provided between the fixed support leg and the oil suction pipe.

8. The engine filter assembly structure according to claim 1, characterized in that: The oil suction pipe 2 is a metal pipe or an oil-resistant rubber pipe, with an inner diameter ranging from 8 mm to 15 mm.

9. The engine filter assembly structure according to claim 1, characterized in that: When the engine tilt angle does not exceed 30°, the lower end of at least one oil suction plate unit is always immersed in the engine oil.

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