A turbo air intake filter

By designing a back-flushing self-cleaning component and a dust removal mechanism, the problem of dust accumulation in the turbocharger is solved, achieving a self-cleaning effect for the filter element and improving turbocharging efficiency and filter element lifespan.

CN224550250UActive Publication Date: 2026-07-24BEIJING TIEFEITE ELECTROMECHANICAL DEVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING TIEFEITE ELECTROMECHANICAL DEVICE CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional turbocharger air filters lack self-cleaning capabilities, causing dust to accumulate on the filter element, affecting turbocharger efficiency and shortening the filter element's lifespan.

Method used

It adopts a back-blowing self-cleaning component and a dust removal mechanism. The motor drives the cam to rotate and push the piston to generate a reverse airflow to clean the dust. The sealing plate is controlled by an electric cylinder to open the dust removal opening and discharge the dust. The cleaning is assisted by engine vibration.

Benefits of technology

It effectively prevents dust from clogging the filter element pores, maintains air permeability, improves turbocharging efficiency, and extends the service life of the filter element.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a turbine air intake's air cleaner relates to air cleaner technical field. The utility model discloses a shell and reverse blow self -cleaning subassembly, the both sides between shell inner chamber are installed with filter core board, the top fixedly connected with seal cover of shell, the left side of shell and seal cover right side are connected with air inlet pipe and exhaust pipe respectively, the surface of exhaust pipe is installed with first check valve. The utility model discloses a reverse blow self -cleaning subassembly, utilizes motor drive cam rotation, periodic extrusion push rod, and reciprocating motion is pushed to the piston in the air chamber, and the pulse airflow of compressed air generates, and this compressed air is discharged through the delivery pipe, forms the impact of reverse airflow, effectively blows off the dust layer of filter core board windward area gathering, solves the problem that dust is continuously accumulated and is jammed filter core board pore because of turbine supercharger big air intake, keeps the air permeability of filter material, reduces the air intake resistance, and guarantees turbine supercharging efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of air filter technology, and in particular relates to a turbine-intake air filter. Background Technology

[0002] A turbocharger air filter is a filtration device installed in the intake system of a turbocharged engine. It is used to filter dust, particulate matter and other impurities from the air entering the turbocharger and engine. It efficiently intercepts pollutants through multiple layers of filter paper or synthetic filter media, while maintaining low intake resistance to ensure sufficient airflow. It is usually located at the front end of the intake duct, and the air is filtered before entering the turbine. It effectively protects precision components such as turbine blades, intercooler and engine cylinders from wear or damage.

[0003] Traditional turbocharger air filters use a fixed filter element structure. When dusty airflow passes through the filter element in one direction, dust continuously accumulates on the windward side of the filter element. Due to the large intake volume generated by the turbocharger's long-term high-load operation, dust accumulation is accelerated. Since the fixed filter element lacks self-cleaning ability, the dust layer continues to thicken and block the filter material pores. This not only increases intake resistance and affects turbocharging efficiency, but also causes uneven airflow distribution due to local blockage, shortening the filter element's service life and making it unsuitable for use.

[0004] To address these issues, we provide a turbine-intake air filter. Utility Model Content

[0005] The purpose of this utility model is to provide a turbocharged air filter that solves the problem that existing turbocharged air filters lack automatic dust and impurity cleaning functions. This is because the large intake volume generated by the long-term high-load operation of the turbocharger accelerates dust accumulation, causing dust to gradually clog the filter element, thus affecting the turbocharging efficiency and reducing the service life of the filter element.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a turbine-intake air filter, comprising a housing and a backflush self-cleaning assembly. A filter plate is installed between the two sides of the inner cavity of the housing. A sealing cover is fixedly connected to the top of the housing. An intake pipe and an exhaust pipe are respectively connected to the left side of the housing and the right side of the sealing cover. A first one-way valve is installed on the surface of the exhaust pipe. The backflush self-cleaning assembly includes an air chamber. The top of the air chamber is fixedly connected to the inner wall of the sealing cover. A piston is disposed within the inner cavity of the air chamber. A spring is fixedly connected to the left side of the piston, and a push rod is fixedly connected to the right side of the piston. The right side of the push rod extends through the inner cavity of the sealing cover. A motor is fixedly connected to the top of the sealing cover. A cam is fixedly connected to the top of the motor's output end through the sealing cover. A delivery pipe is connected to the left and front sides of the air chamber. A second one-way valve is installed on the surface of the delivery pipe.

[0008] The present invention is further configured such that a dust discharge mechanism is provided at the bottom of the housing, the dust discharge mechanism includes an electric cylinder, the top of the electric cylinder is fixedly connected to the inner wall of the housing, a sealing plate is fixedly connected to the left side of the output end of the electric cylinder, and a dust discharge opening is provided on the inner wall of the housing at the bottom of the sealing plate. The electric cylinder can control the position of the sealing plate, the sealing plate is used to seal the dust discharge opening, and the dust discharge opening can discharge dust from the housing. When backflushing the filter plate, the sealing plate can be opened to allow the blown-off dust to be discharged directly from the housing through the dust discharge opening.

[0009] The present invention is further configured such that a sliding rod is fixedly connected to the front and rear sides between the two sides of the inner cavity of the housing, and a sliding sleeve is slidably connected to the surface of the sliding rod. The bottom of the sliding sleeve is fixedly connected to the sealing plate. The sliding rod and the sliding sleeve can limit the sealing plate, so that it can be smoothly adjusted to the left and right positions, preventing it from tilting or shifting after movement, which would affect its sealing effect on the ash discharge opening.

[0010] The present invention is further configured such that a conductive frame is attached to the bottom of the filter plate, and a vibrating steel plate is fixedly connected to the bottom of the conductive frame. The conductive frame can cooperate with the vibrating steel plate to amplify the vibration generated when the engine is working and transmit it to the filter plate, so that the filter plate vibrates and shakes off the dust attached to its bottom, thereby improving its self-cleaning effect.

[0011] The present invention is further provided that the top of the housing is provided with a sealing groove for use with the sealing cover, and the front and rear sides of the sealing cover are fixedly connected to the housing by bolts. The sealing groove can cooperate with the sealing cover to improve the sealing effect of the housing, and the bolts facilitate the installation or removal of the sealing cover and the housing.

[0012] The present invention is further configured such that a baffle is fixedly connected to the right side of the push rod, a through hole for cooperating with the push rod is opened on the right side of the air chamber, and the left side of the spring is fixedly connected to the inner wall of the air chamber. The baffle can improve the squeezing effect of the cam on the push rod, and the spring can reset the piston when it is not squeezed.

[0013] The present invention is further configured such that the bottom of the cam is movably connected to a mounting bracket via a bearing, and the top of the mounting bracket is fixedly connected to the inner wall of the sealing cover. The mounting bracket can increase the stability of the cam during rotation and prevent it from swaying during rotation.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model utilizes a back-blowing self-cleaning component, which uses a motor to drive a cam to rotate, periodically squeezing a push rod and pushing a piston to reciprocate in the air chamber. This compresses the air and generates a pulsed airflow, which is discharged through a delivery pipe, forming a reverse airflow impact. This effectively blows away the dust layer accumulated on the windward side of the filter plate, solving the problem of dust continuously accumulating and clogging the filter plate pores due to the large air intake of the turbocharger. This maintains the air permeability of the filter material, reduces intake resistance, and ensures turbocharger efficiency.

[0016] 2. This utility model, through its dust discharge mechanism, activates an electric cylinder to move the sealing plate and open the dust discharge opening when the back-flushing self-cleaning component is working. This allows the dust and impurities stripped off by the back-flushing airflow to be directly discharged outside the housing through the dust discharge opening, preventing secondary deposition of dust at the bottom of the housing or re-inhalation. Simultaneously, in conjunction with the transmission frame, the engine vibration is transmitted and amplified to the filter plate, assisting in shaking off the attached dust and achieving efficient cleaning. This solves the problems of dust layer thickening, local blockage, and shortened filter life caused by the lack of self-cleaning ability of the filter element, thereby improving the service life of the filter plate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A perspective view of a turbine-intake air filter;

[0019] Figure 2 A partial cross-sectional view of a sealing cover in a turbine-intake air filter;

[0020] Figure 3 A cross-sectional view of the air chamber in a turbine-intake air filter;

[0021] Figure 4 A schematic diagram of a dust removal mechanism in a turbine-intake air filter;

[0022] Figure 5This is a partial cross-sectional view of the housing in a turbine-intake air filter.

[0023] In the attached diagram: 1. Housing; 2. Filter plate; 3. Sealing cover; 4. Inlet pipe; 5. Exhaust pipe; 6. First one-way valve; 7. Backflush self-cleaning assembly; 71. Air chamber; 72. Piston; 73. Spring; 74. Push rod; 75. Motor; 76. Cam; 77. Conveying pipe; 78. Second one-way valve; 8. Ash discharge mechanism; 81. Electric cylinder; 82. Sealing plate; 83. Ash discharge opening; 9. Conducting frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a turbine-intake air filter, including a housing 1 and a backflush self-cleaning assembly 7. A filter plate 2 is installed between the two sides of the inner cavity of the housing 1. A sealing cover 3 is fixedly connected to the top of the housing 1. An intake pipe 4 and an exhaust pipe 5 are respectively connected to the left side of the housing 1 and the right side of the sealing cover 3. A first one-way valve 6 is installed on the surface of the exhaust pipe 5. The backflush self-cleaning assembly 7 includes an air chamber 71. The top of the air chamber 71 is fixedly connected to the inner wall of the sealing cover 3. A piston 72 is provided in the inner cavity of the air chamber 71. A spring 73 is fixedly connected to the left side of the piston 72. A push rod 74 is fixedly connected to the right side of the piston 72. The right side of the push rod 74 extends through the inner cavity of the sealing cover 3. A motor 75 is fixedly connected to the top of the sealing cover 3. The top of the output end of the motor 75 extends through the sealing cover 3 and is fixedly connected to a cam 76. A delivery pipe 77 is connected to the left and front sides of the air chamber 71. A second one-way valve 78 is installed on the surface of the delivery pipe 77.

[0027] Specifically: the filter plate 2 can filter dust in the air, the sealing cover 3 can cooperate with the housing 1 to seal the filter plate 2, so that it can filter and clean the air, while isolating the dust in the inner cavity of the housing 1. The intake pipe 4 and the exhaust pipe 5 can filter the external air and deliver it to the turbocharger. The first one-way valve 6 can prevent air backflow. The motor 75 can control the rotation of the cam 76. The cam 76 can cooperate with the push rod 74 and the spring 73 to control the piston 72 to move back and forth continuously. During the movement, the piston 72 can compress the air inside the air chamber 71 and deliver the compressed air to the inside of the sealing cover 3. By reverse exhaust, the dust attached to the bottom of the filter plate 2 is blown off, preventing it from adhering to the bottom of the filter plate 2 and affecting its air intake effect.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, a dust removal mechanism 8 is provided at the bottom of the housing 1. The dust removal mechanism 8 includes an electric cylinder 81. The top of the electric cylinder 81 is fixedly connected to the inner wall of the housing 1. A sealing plate 82 is fixedly connected to the left side of the output end of the electric cylinder 81. A dust removal opening 83 is provided on the inner wall of the housing 1 at the bottom of the sealing plate 82. Sliding rods are fixedly connected to the front and rear sides between the two sides of the inner cavity of the housing 1. A sliding sleeve is slidably connected to the surface of the sliding rod. The bottom of the sliding sleeve is fixedly connected to the sealing plate 82. The bottom of the filter plate 2 is attached to the sealing plate 82. There is a conductive frame 9, and a vibrating steel plate is fixedly connected to the bottom of the conductive frame 9. The top of the housing 1 is provided with a sealing groove that works with the sealing cover 3. The front and rear sides of the sealing cover 3 are fixedly connected to the housing 1 by bolts. A baffle is fixedly connected to the right side of the push rod 74. A through hole that works with the push rod 74 is provided on the right side of the air chamber 71. The left side of the spring 73 is fixedly connected to the inner wall of the air chamber 71. The bottom of the cam 76 is movably connected to the mounting bracket through a bearing. The top of the mounting bracket is fixedly connected to the inner wall of the sealing cover 3.

[0030] Specifically: the electric cylinder 81 controls the position of the sealing plate 82, which seals the ash discharge opening 83, allowing dust to be discharged from the housing 1. During backflushing of the filter plate 2, the sealing plate 82 can be opened to allow the blown-off dust to be discharged directly from the housing 1 through the ash discharge opening 83. The sliding rod and sliding sleeve limit the sealing plate 82, ensuring smooth left and right position adjustment and preventing tilting or displacement that could affect its sealing effect on the ash discharge opening 83. The conductive frame 9 can... The vibrating steel plate amplifies the vibration generated during engine operation and transmits it to the filter plate 2, causing the filter plate 2 to vibrate and shake off the dust attached to its bottom, thus improving its self-cleaning effect. The sealing groove can cooperate with the sealing cover 3 to improve the sealing effect of the housing 1. The bolts facilitate the installation or removal of the sealing cover 3 and the housing 1. The baffle can improve the squeezing effect of the cam 76 on the push rod 74. The spring 73 can reset the piston 72 when it is not squeezed. The mounting bracket can increase the stability of the cam 76 during rotation and prevent it from wobbling during rotation.

[0031] The working principle of this utility model is as follows: Dust-laden air enters the inner cavity of the housing 1 through the intake pipe 4. When it flows through the filter plate 2, impurities are intercepted, and clean air is output to the turbocharger through the exhaust pipe 5. When the dust accumulation on the filter plate 2 increases, the motor 75 is turned on when the vehicle is not in motion. The motor 75 drives the cam 76 to rotate. The cam 76 periodically squeezes the push rod 74, pushing the piston 72 to the right in the air chamber 71 to compress the air. The reciprocating motion generates compressed airflow, which is output through the delivery pipe 77, forming a reverse flow inside the housing 1. The pulsed airflow impacts the filter plate 2, blowing off the dust attached to its bottom. At the same time, the electric cylinder 81 starts, driving the sealing plate 82 to move to the left and open the dust discharge opening 83. The blown-off dust is discharged from the housing 1 through the dust discharge opening 83 to avoid secondary accumulation. In addition, the vibration generated by the engine operation is amplified by the transmission frame 9 and transmitted to the filter plate 2. The vibrating steel plate helps to shake off the residual dust, which solves the problem of dust continuously accumulating and clogging the pores of the filter plate 2 due to the large intake volume of the turbocharger. This maintains the air permeability of the filter material, reduces intake resistance, and ensures turbocharger efficiency.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A turbine-intake air filter, comprising a housing (1) and a backflush self-cleaning assembly (7), characterized in that: A filter plate (2) is installed between the two sides of the inner cavity of the housing (1). A sealing cover (3) is fixedly connected to the top of the housing (1). An air inlet pipe (4) and an exhaust pipe (5) are respectively connected to the left side of the housing (1) and the right side of the sealing cover (3). A first one-way valve (6) is installed on the surface of the exhaust pipe (5). The backflush self-cleaning assembly (7) includes an air chamber (71), the top of which is fixedly connected to the inner wall of the sealing cover (3). A piston (72) is provided in the inner cavity of the air chamber (71). A spring (73) is fixedly connected to the left side of the piston (72). A push rod (74) is fixedly connected to the right side of the piston (72). The right side of the push rod (74) extends through the inner cavity of the sealing cover (3). A motor (75) is fixedly connected to the top of the sealing cover (3). The top of the output end of the motor (75) extends through the sealing cover (3) and is fixedly connected to a cam (76). A delivery pipe (77) is connected to both the left and front sides of the air chamber (71). A second one-way valve (78) is installed on the surface of the delivery pipe (77).

2. The turbine-intake air filter according to claim 1, characterized in that: The bottom of the housing (1) is provided with a dust discharge mechanism (8), which includes an electric cylinder (81). The top of the electric cylinder (81) is fixedly connected to the inner wall of the housing (1). A sealing plate (82) is fixedly connected to the left side of the output end of the electric cylinder (81). A dust discharge opening (83) is provided on the inner wall of the housing (1) at the bottom of the sealing plate (82).

3. The turbine-intake air filter according to claim 2, characterized in that: The front and rear sides of the inner cavity of the housing (1) are fixedly connected with sliding rods, and the surface of the sliding rods is slidably connected with sliding sleeves. The bottom of the sliding sleeves is fixedly connected to the sealing plate (82).

4. The air filter for turbine intake according to claim 1, characterized in that: The bottom of the filter plate (2) is attached to a conductive frame (9), and a vibrating steel plate is fixedly connected to the bottom of the conductive frame (9).

5. An air filter for turbine intake according to claim 1, characterized in that: The top of the housing (1) is provided with a sealing groove that works in conjunction with the sealing cover (3). The front and rear sides of the sealing cover (3) are fixedly connected to the housing (1) by bolts.

6. An air filter for turbine intake according to claim 1, characterized in that: A baffle is fixedly connected to the right side of the push rod (74), and a through hole is opened on the right side of the air chamber (71) to cooperate with the push rod (74). The left side of the spring (73) is fixedly connected to the inner wall of the air chamber (71).

7. An air filter for turbine intake according to claim 1, characterized in that: The bottom of the cam (76) is movably connected to a mounting bracket via a bearing, and the top of the mounting bracket is fixedly connected to the inner wall of the sealing cover (3).