A kind of air filter for automobile engine with folding paper type multi-layer filter element

Abstract

The utility model discloses a kind of paper-folding type multilayer filter element air cleaner for automobile engine, including the filter element unit of laminated arrangement, it is the undulating board form with continuous crease, adjacent unit is parallel and has interval, undulating board contains continuous V-shaped folding edge, lateral surface is provided with equidistant through-hole;Multilayer unit laminated forms multilayer filtering channel by adjacent gap and V-shaped folding edge space, filter element unit uses paper or high polymer material, V-shaped folding edge apex angle is smooth transition structure, end portion is formed into integral assembly by sealing structure, can be installed in filter housing.The device increases filtering area, reduces resistance by optimizing structure, improves filtering efficiency and air intake smoothness, and is suitable for automobile engine air filtration.

Description

Technical Field

[0001] This utility model provides an air filter, and particularly relates to a paper-folding multi-layer filter air filter for automobile engines. Background Technology

[0002] The air filter for a car engine is a key component that ensures clean air intake for the engine. It filters impurities in the air through the filter element, preventing particulate matter from entering the engine and wearing down internal parts, thus maintaining the engine in good working condition.

[0003] Most existing air filter elements are single-layer or simple multi-layer flat plate structures. Flat plate filters rely on a single plane for filtration, resulting in a limited filtration area. They are prone to rapid accumulation of impurities, leading to blockages. Furthermore, the concentrated impact of airflow can cause premature failure in certain areas. While some multi-layer structures have made some improvements, their layer layout is chaotic, and the filter element shape is not optimized. Structures such as V-shaped folds are missing, which can easily generate turbulence and significant resistance in the airflow channel, reducing intake efficiency. At the same time, the apex angles of the folds are often sharp, further hindering airflow. As a result, it is impossible to achieve both efficient filtration and smooth air intake, making it difficult to meet the engine's requirements for clean and stable air intake. Utility Model Content

[0004] In order to solve the above problems, this application provides a paper-folding multi-layer air filter for automobile engines, which solves the problems of low filtration efficiency and high airflow resistance in the existing structure.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-layer air filter with origami-style filter element for automobile engines, comprising filter element units arranged in layers, wherein the filter element units are in the form of a corrugated plate with continuous folds, and each filter element unit is stacked in the same direction, with adjacent filter element units being parallel to each other and maintaining a distance.

[0006] Preferably, the corrugated plate of the filter element unit has several continuous V-shaped folds, which are connected in sequence to form the main structure of the corrugated plate. The two sides of the V-shaped folds are straight and symmetrical to each other.

[0007] Preferably, the filter element unit has through holes arranged along its length on its side surface. The through holes penetrate the side plate of the filter element unit, and the through holes are evenly distributed along the length of the filter element unit.

[0008] Preferably, after the multiple filter elements are stacked, they form a three-dimensional structure with multiple filter channels. The filter channels are formed by the gaps between adjacent filter elements and the space between the V-shaped folds of the filter elements themselves. The filter channels extend along the length of the filter elements.

[0009] Preferably, the filter element unit is made of paper or polymer material with filtration properties, and the top corner of its V-shaped fold is a rounded transition structure to avoid excessive resistance when airflow passes through.

[0010] Preferably, the sealing structure fits tightly to the end of the filter element unit, so that the multi-layer filter element unit forms an integral filter element assembly. This filter element assembly is used to install in the housing of the automotive engine air filter to filter the air entering the engine.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art: Existing automotive engine air filter elements often suffer from low filtration efficiency and reduced engine intake due to their simple filtration structure and high airflow resistance. This automotive engine air filter uses a folded paper-style multi-layer filter element. It features filter element units arranged in a stacked, corrugated shape with continuous V-shaped folds. The parallel spacing between adjacent filter element units and their own V-shaped folds create a multi-layer filtration channel, increasing the filtration area. Evenly spaced through holes on the sides assist airflow, and the rounded corners of the V-shaped folds reduce airflow resistance. At the same time, the multi-layer structure and sealing structure work together to form an integrated filter element assembly, which is installed in the filter housing. This improves filtration efficiency, optimizes airflow, and solves the filtration and intake problems in existing technologies.

[0012] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of a paper-folding multi-layer air filter for automobile engines according to the present invention; Figure 2 This is a horizontal view of a multi-layered, origami-style air filter for automotive engines according to this utility model. Figure 3 This is a longitudinal sectional view of a multi-layered, origami-style air filter for automotive engines according to this utility model.

[0014] As shown in the figure: 1. Filter element unit; 2. Corrugated plate; 3. Through holes; 4. Filter channel; 5. V-shaped apex. Detailed Implementation

[0015] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] like Figure 1 and Figure 2 As shown, a multi-layered air filter with origami-style filter element for automotive engines includes filter element units 1 arranged in layers. Each filter element unit 1 is in the form of a corrugated plate 2 with continuous folds. Each filter element unit 1 is stacked in the same direction, and adjacent filter element units 1 are parallel to each other and maintain a distance. The corrugated plate 2 of the filter element unit 1 has several continuous V-shaped folds, which are connected in sequence to form the main structure of the corrugated plate 2. The two sides of the V-shaped folds are straight and symmetrical to each other. The side of the filter element unit 1 is provided with through holes 3 arranged along the length direction. The through holes 3 penetrate the side plate of the filter element unit 1, and each through hole 3 is evenly distributed along the length direction of the filter element unit 1.

[0019] In this implementation scheme, each filter element unit 1 is based on the corrugated plate 2 and is arranged in the same direction by stacking. Adjacent units maintain parallel spacing to achieve stable connection. V-shaped folds are connected in sequence to form the main body of the corrugated plate 2. Through holes 3 penetrate the side plate of the filter element unit 1 and are distributed at equal intervals along the length direction. In implementation, the stacked corrugated plate 2 structure greatly increases the filtration area, the V-shaped folds form an orderly channel to reduce airflow resistance, and the equidistant through holes 3 assist airflow. All structures work together to improve filtration efficiency while ensuring smooth air intake. This solves the problems of insufficient filtration area and airflow obstruction in the existing structure. The innovation is reflected in the balance between filtration and air intake performance achieved through shape optimization and orderly layout.

[0020] like Figure 3As shown, after the multi-layer filter element units 1 are stacked, they form a three-dimensional structure with multi-layer filter channels 4. The filter channels 4 are formed by the gaps between adjacent filter element units 1 and the space between the V-shaped folds of the filter element units 1 themselves. The filter channels 4 extend along the length of the filter element units 1. The material of the filter element units 1 is paper or polymer material with filtering properties. The apex corner 5 of its V-shaped folds is a rounded transition structure to avoid excessive resistance when the airflow passes through. The sealing structure is tightly fitted to the end of the filter element units 1, so that the multi-layer filter element units 1 form an integral filter element assembly. This filter element assembly is used to install in the housing of the car engine air filter to filter the air entering the engine.

[0021] In this implementation scheme, after the multi-layer filter element unit 1 is stacked, the gaps between adjacent units and the space of its own V-shaped folded edge together form a multi-layer filtration channel 4 extending along the length direction. The filter element unit 1 is made of a filterable material, and the V-shaped folded edge apex 5 is a smooth transition structure. The sealing structure is tightly fitted with the end of the filter element unit 1 to form an integral filter element assembly and is installed in the filter housing. In implementation, the multi-layer filtration channel 4 increases the airflow path and improves the filtration effect. The filterable material ensures effective interception of impurities, the smooth apex 5 reduces airflow impact and resistance, and the sealing structure ensures overall stability and filtration sealing. The cooperation of each structure improves filtration reliability while ensuring air intake efficiency. The innovation is reflected in the unity of filtration performance and structural stability achieved through three-dimensional channel design and detailed optimization.

[0022] In actual use, this device needs to be used with a car engine air filter housing (a common structure in existing technology). This housing usually has an air inlet and an air outlet. When the filter element assembly is installed in the housing, its edge is in close contact with the sealing strip inside the housing (a commonly used sealing component in existing technology) to prevent unfiltered air from directly entering the engine. The paper material that can be used is resin-impregnated wood pulp filter paper, and the polymer material is polypropylene meltblown cloth. An air intake pipe (a conventional pipe in existing technology) also needs to be connected to the outside of the housing. Outside air is introduced into the housing through the air intake pipe, filtered by the filter element assembly, and then enters the engine intake system through the air outlet, thus forming a complete air filtration process.

[0023] Specifically, during installation, the entire filter element assembly is first snapped into the filter housing using the pre-set snap-fit ​​structure (a common fixing method in existing technology). This ensures that the edge of the filter element assembly is completely fitted with the rubber sealing ring (a standard sealing element in existing technology) on the inner wall of the housing. Then, the upper cover and lower housing are fastened together with bolts on both sides of the housing to form a closed space. During use, outside air enters the intake chamber of the housing through the intake pipe (a conventional pipeline in existing technology). Under the negative pressure of the engine intake air, the airflow passes through the multi-layer filter channel 4 and the through hole 3 of the filter element unit 1 in sequence. After being filtered by the V-shaped folded edge area of ​​the corrugated plate 2, the clean air enters the engine intake manifold from the air outlet of the housing. After the filter element has been used for a certain period of time, the upper cover can be removed by loosening the housing bolts to take out the filter element assembly for replacement. When replacing, it is necessary to operate according to the cycle specified in the vehicle maintenance manual (a common maintenance standard in existing technology). During the replacement process, it is necessary to avoid direct contact of the filter surface of the filter element unit 1 with hands to prevent contamination by impurities.

[0024] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A multi-layered, origami-style air filter for automotive engines, characterized in that, It includes filter element units (1) arranged in layers. The filter element unit (1) is in the form of a corrugated plate (2) with continuous folds. Each filter element unit (1) is stacked in the same direction. Adjacent filter element units (1) are parallel to each other and maintain a distance. The corrugated plate (2) of the filter element unit (1) has several continuous V-shaped folds. The V-shaped folds are connected in sequence to form the main structure of the corrugated plate (2). The two sides of the V-shaped folds are straight and symmetrical to each other.

2. The folded multi-layer air filter for automotive engines according to claim 1, characterized in that, The filter element unit (1) has through holes (3) arranged along the length direction on its side. The through holes (3) penetrate the side plate of the filter element unit (1) and each through hole (3) is evenly distributed along the length direction of the filter element unit (1).

3. The folded multi-layer air filter for automotive engines according to claim 1, characterized in that, After the multiple filter elements (1) are stacked, they form a three-dimensional structure with multiple filter channels (4). The filter channels (4) are formed by the gaps between adjacent filter elements (1) and the space between the V-shaped folds of the filter elements (1). The filter channels (4) extend along the length of the filter elements (1).

4. A multi-layered, origami-style air filter for automotive engines according to claim 1, characterized in that, The filter element unit (1) is made of paper or polymer material with filtration properties, and the top corner (5) of its V-shaped fold is a smooth transition structure to avoid excessive resistance when the airflow passes through.

5. A multi-layer, origami-style air filter for automotive engines according to claim 1, characterized in that, The end of the filter element unit (1) is provided with a sealing structure that fits tightly with itself, so that the multi-layer filter element unit (1) forms an integral filter element assembly. This filter element assembly is used to be installed in the housing of the car engine air filter to filter the air entering the engine.

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