CN218953460U - Air filter with bypass air inlet structure - Google Patents
Air filter with bypass air inlet structure Download PDFInfo
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- CN218953460U CN218953460U CN202223545419.4U CN202223545419U CN218953460U CN 218953460 U CN218953460 U CN 218953460U CN 202223545419 U CN202223545419 U CN 202223545419U CN 218953460 U CN218953460 U CN 218953460U
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- bypass
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- air intake
- inlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses an air filter with a bypass air inlet structure, belongs to the technical field of air filters, and solves the problem that air cannot be inlet due to blockage after the conventional air filter is used for a long time. The air filter comprises a main air filter body, a main air inlet cavity is formed in the main air filter body, a main filter body used for filtering air is arranged at the outer edge of the main air filter body, an air inlet hole and an air outlet hole are formed in two ends of the main air filter body respectively, a main air outlet is formed in the air outlet hole, a bypass air inlet structure used for compensating air inlet is arranged on the air inlet hole, the bypass air inlet structure is located in the main air inlet cavity, and the bypass air inlet structure is communicated with the main air inlet cavity. The air filter with the bypass air inlet structure has the characteristics of convenience in use and strong practicability, and can effectively filter the air inlet under the condition of guaranteeing the air inflow of the air filter.
Description
Technical Field
The utility model relates to the technical field of air filters, in particular to an air filter with a bypass air inlet structure.
Background
Conventionally, an air cleaner for an internal combustion engine is used for filtering intake air of the internal combustion engine, and the air cleaner can adsorb dirt such as dust and oil mist in the sucked air on a filter medium or separate dust, particles, oil dirt and the like in the intake air by a cyclone centrifugation method. The cleanliness of the air inlet is ensured, and the problems of piston cylinder pulling, abnormal abrasion of a valve seat ring sealing belt and the like caused by poor air inlet cleanliness are avoided; and ensuring enough air inflow to avoid the problems of power reduction, combustion deterioration and the like caused by insufficient air inflow of the engine. Common filter materials of the air filter comprise filter paper, non-woven fabrics and steel wire meshes, and for desert air filtration, the air inlet is adsorbed and separated by using a cyclone centrifugal structure oil bath, filter paper and other modes.
The existing air filter, especially the filter core adopts the air filtration of paper or wire gauze, after long-time use, dust, granule, dirt such as oil stain glue the filter core surface back, the filtration resistance of air filter can obviously increase, if not in time change, can lead to the engine air input not enough, the performance worsens, under extreme circumstances, the air filter can be by great engine intake suction or the compressor intake suction of booster inhale flat, if the inner structure after the air filter is inhaled flat is destroyed and is produced and drop, the foreign matter that drops will get into the air intake system of engine until get into in the cylinder, the moving parts such as piston, the valve of engine will cause the damage, seriously influence the operational safety and the reliability of engine, and after current air filter blocks up, be difficult for finding, still continue to use in time, the user can not clear up or change, lead to the engine to admitting air inadequately, cause the engine to break down.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, and provides the air filter with the bypass air inlet structure, which has the characteristics of convenient use and strong practicability under the condition of guaranteeing the air inflow of the air filter and effectively filtering the air inlet.
The technical scheme adopted by the utility model is as follows: the utility model provides an air cleaner with bypass inlet structure, includes the main air cleaner body, this internal main inlet chamber that is equipped with of main air cleaner, main air cleaner body outer fringe be equipped with the main filter body that is used for filtering air, main air cleaner body both ends offer inlet port and venthole respectively, the venthole on be equipped with main gas outlet, the inlet port on be equipped with the bypass inlet structure that is used for the compensation to admit air, bypass inlet structure be located main inlet chamber to bypass inlet structure and main inlet chamber intercommunication, bypass inlet structure on be equipped with the bypass inlet valve that is used for controlling bypass inlet structure and admits air, bypass inlet structure and main air cleaner body detachable connection, bypass inlet structure on be equipped with the displacement sensor that detects bypass inlet valve and open.
As a further improvement, the bypass air inlet structure comprises a bypass air inlet cavity cover plate, a bypass filter body and a bypass air inlet cavity, wherein the bypass air inlet cavity cover plate is arranged on the opening end of the bypass filter body, a bypass air inlet channel is formed in the bypass air inlet cavity cover plate, the bypass air inlet channel is communicated with the bypass air inlet cavity, and the bypass air inlet valve is arranged on the bypass air inlet channel.
Further, bypass admission valve including supporting guide bar and valve, support guide bar one end fixed connection on bypass inlet structure, support guide bar on fixedly connected with spring holder, valve slip cap establish on supporting guide bar, valve one side and spring holder between be equipped with reset spring, valve opposite side and bypass inlet chamber apron laminating, displacement sensor arrange on bypass inlet chamber apron, displacement sensor's detection end and valve laminating.
Further, a spring guide sleeve is arranged on the valve, and the return spring is arranged in the spring guide sleeve.
Further, the other end of the supporting guide rod is connected with a limit bolt for limiting the position of the valve in a threaded manner.
Further, the bypass air inlet cavity cover plate is connected with the main air filter body through a connecting bolt.
Further, a mechanical air inlet negative pressure indicator is arranged on the main air outlet, and the detection end of the mechanical air inlet negative pressure indicator extends to the inner cavity of the main air outlet.
Further, the ratio of the diameter of the bypass air inlet channel to the inner diameter of the main air inlet cavity is 0.25-0.45, the ratio of the diameter of the bypass air inlet channel to the inner diameter of the bypass air inlet cavity is 0.65-0.75, and the ratio of the diameter of the bypass air inlet channel to the inner diameter of the main air outlet is 0.45-0.65.
Further, a locking clamp is sleeved on the main air outlet.
Advantageous effects
Compared with the prior art, the utility model has the following advantages:
according to the air filter with the bypass air inlet structure, only the filter body of the main air filter works under the normal use condition, when the main filter body is blocked to reach a certain amount of negative pressure, the bypass air inlet valve is opened, air enters from the bypass air inlet structure, the bypass filter body of the bypass air inlet structure starts to work, air enters the main air inlet cavity after passing through the bypass filter body of the bypass air inlet structure, and then directly enters the air inlet pipe of the engine from the main air inlet cavity, so that after the traditional air filter is blocked, the air filter is opened through the bypass air inlet structure, fresh air can enter the engine through the bypass air inlet structure, and the engine is guaranteed to have enough air inflow, so that the engine cannot be greatly reduced or even flameout due to insufficient air inflow, and the air filter has the characteristics of strong practicability and wide application range.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model without the main filter;
fig. 3 is an enlarged schematic view of a cross-sectional structure of the present utility model.
Wherein: 1-main air filter body, 2-bypass admission valve, 3-main filter body, 4-main air inlet chamber, 5-venthole, 6-main gas outlet, 7-inlet port, 8-bypass inlet channel, 9-bypass inlet structure, 10-limit bolt, 11-mechanical air intake negative pressure indicator, 12-locking clamp, 13-connecting bolt, 14-displacement sensor, 21-valve, 22-spring uide bushing, 23-reset spring, 24-spring holder, 25-support guide bar, 91-bypass inlet chamber apron, 92-bypass air inlet chamber, 93-bypass filter body.
Detailed Description
The utility model will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-3, the air filter with the bypass air inlet structure comprises a main air filter body 1, a main air inlet cavity 4 is arranged in the main air filter body 1, a main filter body 3 for filtering air is arranged at the outer edge of the main air filter body 1, an air inlet hole 7 and an air outlet hole 5 are respectively formed in two ends of the main air filter body 1, a main air outlet 6 is formed in the air outlet hole 5, a bypass air inlet structure 9 for compensating air inlet is arranged on the air inlet hole 7, the bypass air inlet structure 9 is located in the main air inlet cavity 4, the bypass air inlet structure 9 is communicated with the main air inlet cavity 4, a bypass air inlet valve 2 for controlling air inlet of the bypass air inlet structure 9 is arranged on the bypass air inlet structure 9, the bypass air inlet structure 9 is detachably connected with the main air filter body 1, and a displacement sensor 14 for detecting opening of the bypass air inlet valve 2 is arranged on the bypass air inlet structure 9. When the main filter body 3 of the main air filter body 1 is not severely blocked, fresh air enters the main air inlet cavity 4 through the main filter body 3 and enters an air inlet of a booster compressor of an engine through the main air outlet 6, or directly enters an air inlet pipe of the engine for a non-booster type, the opening pressure of the bypass air inlet valve 2 is set to be less than or equal to minus 6kPa, when the main filter body 3 of the main air filter body 1 is severely blocked, the air inlet resistance of the engine is increased, when the air inlet pressure of the engine is higher than minus 6kPa, the valve 21 of the bypass air inlet valve starts to compress the reset spring 23, the bypass air inlet valve 2 starts to open, the fresh air enters the bypass air inlet cavity 92 through the bypass air inlet channel 8, then enters the main air inlet 4 through the bypass filter body 93, finally enters the air inlet of the booster compressor of the engine through the main air outlet 1, or directly enters the air inlet pipe of the engine for a non-booster type, so that after the traditional air filter is blocked, the bypass air inlet structure 9 is opened, the fresh air can enter the air inlet pipe of the engine through the bypass air inlet structure 9, and the engine is ensured to have enough air inlet amount, so that the engine is not to cause the shortage of power to drop, even when the bypass air inlet valve 21 is opened, the bypass air inlet valve is opened, the air inlet valve is prevented from being moved, on the side by a large amplitude, the air inlet valve is opened, and the air inlet valve is prevented from being changed, on the other side, and the air is prevented from being fed back by the air through the bypass air inlet valve, and the air inlet valve is opened, and the air filter is completely and has a fault and has been opened.
Specifically, the bypass intake structure 9 includes a bypass intake cavity cover plate 91, a bypass filter 93, and a bypass intake cavity 92, the bypass intake cavity cover plate 91 is disposed at an opening end of the bypass filter 93, a bypass intake passage 8 is provided on the bypass intake cavity cover plate 91, the bypass intake passage 8 is communicated with the bypass intake cavity 92, the bypass intake valve 2 is disposed on the bypass intake passage 8, when an engine intake pressure is higher than-6 kPa, a valve 21 of the bypass intake valve 2 is opened, and fresh intake air enters the bypass intake cavity 92 through the bypass intake passage 8, thereby supplementing air.
Preferably, the bypass intake valve 2 comprises a support guide rod 25 and a valve 21, one end of the support guide rod 25 is fixedly connected to the bypass intake structure 9, a spring seat 24 is fixedly connected to the support guide rod 25, the valve 21 is slidably sleeved on the support guide rod 25, a reset spring 23 is arranged between one side of the valve 21 and the spring seat 24, the other side of the valve 21 is attached to the bypass intake cavity cover plate 91, the negative pressure for opening the valve 21 is controlled through the selection of the reset spring 23, so that when the intake negative pressure of an engine is higher than-6 kPa, the valve 21 of the bypass intake valve 2 can be smoothly opened, the displacement sensor 14 is arranged on the bypass intake cavity cover plate 91, and the detection end of the displacement sensor 14 is attached to the valve 21.
Further, a spring guide sleeve 22 is arranged on the valve 21, and a return spring 23 is arranged in the spring guide sleeve 22, so that the return spring 23 is firmer in the compression process.
Further, the other end of the support guide rod 25 is screw-coupled with a limit bolt 10 for limiting the position of the valve 21.
Further, the bypass intake chamber cover plate 91 is connected with the main air cleaner body 1 through the connecting bolt 13, so that the valve 21 and the bypass intake chamber cover plate 91 can be attached and sealed in normal operation.
Further, a mechanical air inlet negative pressure indicator 11 is arranged on the main air outlet 6, the detection end of the mechanical air inlet negative pressure indicator 11 extends to the inner cavity of the main air outlet 6, when the negative pressure value reaches-6 kPa, a slide valve with warning color or warning characters is arranged in the main air outlet or is sucked out by negative pressure and is presented to an operator, when the operator finds out prompt, the operator needs to maintain the air filter as soon as possible, and after maintenance, the mechanical air inlet negative pressure indicator 11 needs to be reset so as to be ready for maintenance prompt of the next air filter. .
Further, the ratio of the diameter of the bypass air inlet channel 8 to the inner diameter of the main air inlet cavity 4 is 0.25-0.45, the ratio of the diameter of the bypass air inlet channel 8 to the inner diameter of the bypass air inlet cavity 92 is 0.65-0.75, the ratio of the diameter of the bypass air inlet channel 8 to the inner diameter of the main air outlet 6 is 0.45-0.65, and the gas entering the bypass air inlet channel 8 can meet the use requirement of an engine.
Further, a locking clamp 12 is sleeved on the main air outlet 6 and is used for connecting an air inlet pipe of the engine.
When the air filter with the bypass air inlet structure is used, when the main filter body 3 of the main air filter body 1 is not seriously blocked, fresh air enters the main air inlet cavity 4 through the main filter body 3 and enters the air inlet of the booster compressor of the engine through the main air outlet 6, or directly enters the air inlet pipe of the engine for a non-booster type, the opening pressure of the bypass air inlet valve 2 is set to be less than or equal to
When the main filter body 3 of the main air filter body 1 is blocked seriously, the air intake resistance of the engine is increased, when the air intake negative pressure of the engine is higher than-6 kPa, the valve 21 of the bypass air intake valve starts to compress the return spring 23, the bypass air intake valve 2 starts to open, fresh air enters the bypass air intake cavity 92 through the bypass air intake channel 8 and then enters the main air intake 4 through the bypass filter body 93, and finally enters the air inlet of the booster compressor of the engine through the main air outlet 1, or directly enters the air intake pipe of the engine for the non-booster type, so that after the traditional air filter is blocked, the traditional air filter is opened through the bypass air intake structure 9, the fresh air can enter the engine through the bypass air intake structure 9, and the sufficient air intake of the engine is ensured, so that the engine cannot be greatly reduced in power or even flameout because of the insufficient air intake. The air filter with the bypass air inlet structure has the characteristics of convenience in use and strong practicability, and can effectively filter the air inlet under the condition of guaranteeing the air inflow of the air filter.
While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (9)
1. The utility model provides an air cleaner with bypass inlet structure, its characterized in that, including main air cleaner body (1), main air cleaner body (1) in be equipped with main inlet chamber (4), main air cleaner body (1) outer fringe be equipped with main filter body (3) that are used for filtering air, main air cleaner body (1) both ends have seted up inlet port (7) and venthole (5) respectively, venthole (5) on be equipped with main gas outlet (6), inlet port (7) on be equipped with bypass inlet structure (9) that are used for the compensation inlet, bypass inlet structure (9) be located main inlet chamber (4) to bypass inlet structure (9) and main inlet chamber (4) intercommunication, bypass inlet structure (9) on be equipped with bypass inlet valve (2) that are used for controlling bypass inlet structure (9) inlet, bypass inlet structure (9) and main air cleaner body (1) can dismantle and be connected, bypass inlet structure (9) on be equipped with displacement sensor (14) that detect bypass inlet valve (2) and open.
2. An air cleaner with a bypass air intake structure according to claim 1, characterized in that the bypass air intake structure (9) comprises a bypass air intake cavity cover plate (91), a bypass filter body (93) and a bypass air intake cavity (92), the bypass air intake cavity cover plate (91) is arranged at the opening end of the bypass filter body (93), the bypass air intake cavity cover plate (91) is provided with a bypass air intake channel (8), the bypass air intake channel (8) is communicated with the bypass air intake cavity (92), and the bypass air intake valve (2) is arranged on the bypass air intake channel (8).
3. The air cleaner with bypass inlet structure according to claim 2, characterized in that the bypass inlet valve (2) comprises a support guide rod (25) and a valve (21), one end of the support guide rod (25) is fixedly connected to the bypass inlet structure (9), a spring seat (24) is fixedly connected to the support guide rod (25), the valve (21) is slidably sleeved on the support guide rod (25), a reset spring (23) is arranged between one side of the valve (21) and the spring seat (24), the other side of the valve (21) is attached to the bypass inlet cavity cover plate (91), the displacement sensor (14) is arranged on the bypass inlet cavity cover plate (91), and the detection end of the displacement sensor (14) is attached to the valve (21).
4. An air cleaner with a bypass air intake structure according to claim 3, wherein the valve (21) is provided with a spring guide sleeve (22), and the return spring (23) is mounted in the spring guide sleeve (22).
5. An air cleaner with a bypass air intake structure according to claim 3, wherein the other end of the support guide rod (25) is screwed with a limit bolt (10) for limiting the position of the valve (21).
6. An air cleaner with a bypass intake structure according to claim 2, wherein the bypass intake chamber cover (91) is connected to the main air cleaner body (1) by means of a connecting bolt (13).
7. An air cleaner with a bypass air intake structure according to claim 1, wherein the main air outlet (6) is provided with a mechanical air intake negative pressure indicator (11), and a detection end of the mechanical air intake negative pressure indicator (11) extends to an inner cavity of the main air outlet (6).
8. An air cleaner with a bypass air intake structure according to claim 2, wherein the ratio of the diameter of the bypass air intake passage (8) to the inner diameter of the main air intake chamber (4) is 0.25-0.45, the ratio of the diameter of the bypass air intake passage (8) to the inner diameter of the bypass air intake chamber (92) is 0.65-0.75, and the ratio of the diameter of the bypass air intake passage (8) to the inner diameter of the main air outlet (6) is 0.45-0.65.
9. An air cleaner with a bypass air intake structure according to claim 1, wherein the main air outlet (6) is provided with a locking clip (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223545419.4U CN218953460U (en) | 2022-12-29 | 2022-12-29 | Air filter with bypass air inlet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223545419.4U CN218953460U (en) | 2022-12-29 | 2022-12-29 | Air filter with bypass air inlet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218953460U true CN218953460U (en) | 2023-05-02 |
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ID=86105868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223545419.4U Active CN218953460U (en) | 2022-12-29 | 2022-12-29 | Air filter with bypass air inlet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218953460U (en) |
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2022
- 2022-12-29 CN CN202223545419.4U patent/CN218953460U/en active Active
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