A power air filter

Abstract

This invention discloses a power air filter, including a bottom shell and a top cover. The bottom shell and the top cover are fastened together to form a first chamber and a second chamber that communicate with each other. A third chamber is formed on the bottom shell. The side wall of the third chamber has an air inlet connected to the engine exhaust pipe. A baffle is formed inside the third chamber, dividing the bottom space of the third chamber into an oil-gas mixing chamber and an exhaust gas chamber. The air inlet is located on the side wall of the oil-gas mixing chamber. The bottom of the oil-gas mixing chamber has a channel connecting to the engine. The side wall of the exhaust gas chamber also has an air outlet, which communicates with the first and second chambers. The beneficial effect of this invention is that by setting up the third chamber, when the mixed exhaust gas passes through the oil-gas mixing chamber, the oil in the mixed exhaust gas is blocked by the baffle and flows back to the engine's combustion chamber through the pipe, saving fuel consumption and preventing oil from accumulating on the filter element, thus ensuring the filtration effect of the filter element.

Description

Technical Field

[0001] This invention pertains to engine technology, specifically a power air filter. Background Technology

[0002] An air filter is one of the essential self-protection devices for a car engine. During the engine's intake process, it filters out dust and impurities from the air, delivering clean, dry, and sufficient air into the combustion chamber, thus reducing wear on various engine components.

[0003] Existing power air filters allow the oil-gas mixture discharged from the cylinder head to directly enter the air filter. The oil in the mixture comes into direct contact with the filter element and accumulates on the filter screen, reducing the filter element's filtration efficiency and consequently reducing engine performance. Summary of the Invention

[0004] The purpose of this invention is to provide a power air filter that prevents engine oil from accumulating on the filter element and ensures the filtration effect of the filter element.

[0005] To achieve this objective, the present invention adopts the following technical solution.

[0006] A power air filter includes a bottom shell and a top cover. The bottom shell and the top cover are fastened together to form a first chamber and a second chamber that communicate with each other. A third chamber is formed on the bottom shell. An air inlet connected to an engine exhaust pipe is formed on the side wall of the third chamber. A baffle is formed in the third chamber, which divides the bottom space of the third chamber into an oil-gas mixing chamber and an exhaust gas chamber. The air inlet is located on the side wall of the oil-gas mixing chamber. A channel connecting to the engine is formed at the bottom of the oil-gas mixing chamber. An air outlet is also formed on the side wall of the exhaust gas chamber, and the air outlet communicates with the first chamber and the second chamber.

[0007] The present invention, employing the aforementioned technical solution, establishes a third chamber on the bottom shell of the air filter, allowing engine exhaust gas to enter the third chamber through the air inlet. A baffle is installed within the third chamber, dividing the bottom space of the third chamber into an oil-gas mixing chamber and an exhaust gas chamber. When the mixed exhaust gas passes through the oil-gas mixing chamber, the oil in the mixed exhaust gas is blocked by the baffle and remains within the oil-gas mixing chamber, then flows back to the engine's combustion chamber through a pipe. This saves fuel consumption and prevents oil from entering the second and first chambers with the exhaust gas through the air outlet, thus preventing oil accumulation on the filter element and ensuring the filter element's filtration effect.

[0008] Preferably, the bottom shell is rectangular in shape and is divided into two parts along its length by a first partition. The second chamber and the third chamber are located on the same side, and the third chamber is located at one end of the second chamber. The air outlet is located on the common side wall of the second chamber and the third chamber.

[0009] By sharing a side wall between the third chamber and the second chamber, and setting an exhaust port on this side wall, the exhaust gas in the third chamber can enter the second chamber through the exhaust port and then enter the engine through the second chamber.

[0010] Preferably, an engine mounting portion is formed at the bottom of the second chamber.

[0011] In this way, by setting up the installation part, it is easy for the purified gas to enter the engine through the second chamber.

[0012] Preferably, a baffle is formed in the second chamber, the front of the baffle is opposite to the air outlet, one side of the baffle is connected to the first partition, and the other side extends toward the engine mounting part.

[0013] By installing a baffle in the second chamber, the exhaust gas in the third chamber can directly enter the engine through a prescribed path and quickly participate in the combustion cycle.

[0014] Preferably, a louvered air inlet is formed at the bottom of the first chamber, and a filter element is installed inside the first chamber.

[0015] By setting up a louvered air inlet, it is easy for outside air to enter the first chamber, and after entering, it passes through the filter to filter out dust and other particles in the air.

[0016] Preferably, a plurality of support columns are formed at the bottom of the first chamber, and the filter element is installed through the support columns. The height of the support columns is equal to the distance between the louvered air inlet and the bottom of the filter element, and a set distance is formed between the top of the filter element and the top cover.

[0017] The installation of the filter element is facilitated by setting up support columns, and the height of the support columns supports the bottom of the first chamber to form a channel for outside air to enter the air filter.

[0018] Preferably, the filter element is a dual filtration filter element consisting of an overlapping paper filter element and a foam filter element.

[0019] By using a dual-filtration filter element that overlaps a paper filter element and a foam filter element, the foam layer has a strong adsorption capacity and can adsorb larger particles such as sand and dust; the paper layer has a certain mechanical strength and can be used for fine filtration to remove finer dust. The overlap of the two elements improves the mechanical strength and filtration effect of the filter element.

[0020] Preferably, a second partition is formed on the inner side of the top cover, which is aligned with the position of the first partition of the bottom shell. A through hole is formed at one end of the second partition. A support is formed on the top cover, and the top cover abuts against the filter element through the support.

[0021] The support column forms a channel for filtering air between the filter element and the top cover, and forms a through hole on the second partition to allow the air filtered in the first chamber to enter the second chamber and thus enter the engine.

[0022] The beneficial effects of this invention are that by setting a third chamber on the bottom shell of the air filter, the exhaust gas of the engine enters the third chamber through the air inlet, and a baffle is set in the third chamber to divide the bottom space of the third chamber into an oil-gas mixing chamber and an exhaust gas chamber. When the mixed exhaust gas passes through the oil-gas mixing chamber, the oil in the mixed exhaust gas is blocked by the baffle and stays in the oil-gas mixing chamber. It then flows back to the combustion chamber of the engine through the pipe, saving fuel consumption and preventing oil from entering the second chamber and the first chamber through the exhaust gas outlet. Oil accumulates on the filter element, ensuring the filtration effect of the filter element. Attached Figure Description

[0023] Figure 1 This is a diagram of the bottom shell structure of the present invention;

[0024] Figure 2 This is the present invention. Figure 1 Structural diagram after filter element installation;

[0025] Figure 3 This is a side view of the present invention;

[0026] Figure 4 This is a structural diagram of the cover of the present invention. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings, but this does not limit the invention to the scope of the embodiments described.

[0028] The reference numerals in the accompanying drawings of this invention include: bottom shell 1, top cover 11, louvered air inlet 2, first chamber 3, support column 31, filter element 4, second chamber 5, mounting part 51, guide plate 52, third chamber 6, air inlet 61, air outlet 62, and baffle 63.

[0029] See Figure 1 and Figure 4 A power air filter includes a bottom shell 1 and a top cover 11. The bottom shell 1 and the top cover 11 are fastened together to form a first chamber 3 and a second chamber 5 that communicate with each other. A third chamber 6 is formed on the bottom shell 1. An air inlet 61 connected to an engine exhaust pipe is formed on the side wall of the third chamber 6. A baffle 63 is formed inside the third chamber 6, which divides the bottom space of the third chamber 6 into an oil-gas mixing chamber and an exhaust gas chamber. The air inlet 61 is located on the side wall of the oil-gas mixing chamber. A channel connecting to the engine is formed at the bottom of the oil-gas mixing chamber. An air outlet 62 is also formed on the side wall of the exhaust gas chamber, and the air outlet 62 communicates with the first chamber 3 and the second chamber 5.

[0030] See Figure 3 The bottom shell 1 is rectangular in shape and is divided into two parts along its length by a first partition. The second chamber 5 and the third chamber 6 are located on the same side, and the third chamber 6 is located at one end of the second chamber 5. The air outlet 62 is located on the common side wall of the second chamber 5 and the third chamber 6.

[0031] See Figure 1 and Figure 2 A guide plate 52 is formed in the second chamber 5. The front of the guide plate 52 is opposite to the air outlet 62. One side of the guide plate 52 is connected to the first partition, and the other side extends toward the engine mounting part 51.

[0032] See Figure 1 and Figure 2 An engine mounting portion 51 is formed at the bottom of the second chamber 5.

[0033] See Figure 1 The bottom of the first chamber 3 has a louvered air inlet 2, and a filter element 4 is installed inside the first chamber 3.

[0034] See Figure 1 The bottom of the first chamber 3 has several support columns 31, through which the filter element 4 is installed. The height of the support column 31 is equal to the distance between the louvered air inlet 2 and the bottom of the filter element 4. There is a set distance between the top of the filter element 4 and the upper cover 11.

[0035] See Figure 2 The filter element 4 is a dual filter element 4 consisting of an overlapping paper filter element 4 and a foam filter element 4.

[0036] See Figure 4 The inner side of the upper cover 11 has a second partition plate that is aligned with the position of the first partition plate of the bottom shell 1. One end of the second partition plate has a through hole. A support column is formed on the upper cover 11, and the upper cover 11 abuts against the filter element 4 through the support column.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A power air filter, characterized in that, The system includes a bottom shell (1) and a top cover (11). The bottom shell (1) and the top cover (11) are fastened together to form a first chamber (3) and a second chamber (5) that communicate with each other. A third chamber (6) is formed on the bottom shell (1). An air inlet (61) connected to the engine exhaust pipe is formed on the side wall of the third chamber (6). A baffle (63) is formed inside the third chamber (6). The baffle (63) divides the bottom space of the third chamber (6) into oil and gas compartments. The mixture chamber and the exhaust chamber are provided. The air inlet (61) is located on the side wall of the oil-gas mixture chamber. A channel connecting to the engine is formed at the bottom of the oil-gas mixture chamber. An air outlet (62) is also formed on the side wall of the exhaust chamber. The air outlet (62) is connected to the first chamber (3) and the second chamber (5). A flow guide channel is formed on the baffle (63). A gap is left between the baffle (63) and the side wall of the third chamber (6) which is inclined. The bottom shell (1) is rectangular in shape and is divided into two parts along the length direction by the first partition. The second chamber (5) and the third chamber (6) are located on the same side, and the third chamber (6) is located at one end of the second chamber (5). The air outlet (62) is located on the common side wall of the second chamber (5) and the third chamber (6). The bottom of the second chamber (5) is formed with an engine mounting part (51), and a guide plate (52) is formed inside the second chamber (5). The front of the guide plate (52) is opposite to the air outlet (62). One side of the guide plate (52) is connected to the first partition, and the other side extends toward the mounting part (51).

2. The power air filter according to claim 1, characterized in that, The bottom of the first chamber (3) has a louvered air inlet (2), and a filter element (4) is installed inside the first chamber (3).

3. The power air filter according to claim 2, characterized in that, The bottom of the first chamber (3) has several support columns (31) and the filter element (4) is installed through the support columns (31). The height of the support column (31) is equal to the distance between the louvered air inlet (2) and the bottom of the filter element (4). There is a set distance between the top of the filter element (4) and the upper cover (11).

4. The power air filter according to claim 3, characterized in that, The filter element (4) is a dual filter element (4) consisting of an overlapping paper filter element (4) and a foam filter element (4).

5. The power air filter according to claim 1, characterized in that, The inner side of the upper cover (11) has a second partition plate that is aligned with the position of the first partition plate of the bottom shell (1). One end of the second partition plate has a through hole. A support column is formed on the upper cover (11). The upper cover (11) abuts against the filter element (4) through the support column.

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