Variable air inlet air filter

Abstract

The invention discloses a variable air inlet air filter which comprises a machine shell, a first air inlet pipe, a second air inlet pipe and an exhaust pipe. Compared with the prior art, the device has the advantages that (1) water is prevented from entering the engine, the water touch sensor is matched with the electric control valve, an air inlet pipeline is automatically switched in rainy days or in wading driving, water is effectively prevented from entering the engine, and safe operation of the engine is guaranteed; (2) high air inlet efficiency of the engine is ensured: the first air inlet pipe at the windward position is used for air inlet to ensure that the engine obtains enough clean air for combustion, and the operation efficiency of the engine is improved; (3) the driving safety is improved: the condition of flameout of the engine due to water inflow is effectively prevented, traffic accidents caused by engine faults are avoided, and the driving safety is improved; traffic accidents caused by engine water inflow can be reduced, the safety of drivers, passengers and pedestrians is protected, and public safety benefits are met.

Description

Technical Field

[0001] The invention relates to an automobile engine air intake system, in particular to a variable air intake air filter. Background Art

[0002] In the prior art, the air intake system of a car engine usually uses a fixed air intake duct and an air filter to ensure that the engine can obtain enough clean air for combustion. However, in rainy weather or when the car accidentally falls into the water, these fixed air intake ducts are often prone to water ingress, causing the engine to stall due to water ingress, and even causing engine damage in severe cases. This not only affects the normal driving of the car, but may also cause traffic accidents, posing a threat to the safety of the driver, passengers and pedestrians. Therefore, the main problem in the prior art is: how to effectively prevent rain or water from entering the engine air intake system while ensuring the high efficiency of the engine intake to ensure the safe operation of the engine. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a variable intake air filter, which, by setting two intake pipes, an air filter, and corresponding components such as a water contact sensor and an electronically controlled valve, realizes the function of automatically switching the intake pipe in rainy weather or when driving through water, thereby effectively preventing water from entering the engine.

[0004] Specifically, the technical solution provided by the present invention is: a variable intake air filter, comprising:

[0005] The casing has an air filter inside, the air inlet interface of the air filter is connected to the air inlet pipe 1 and the air inlet pipe 2 respectively arranged at both ends of the casing through a pipeline, and the exhaust interface of the air filter is connected to the exhaust pipe exposed on the top of the casing;

[0006] An air intake pipe 1, the air intake pipe 1 is composed of a pipe body, a water contact sensor 1, and an electric control valve 1. A pipe opening at one end of the pipe body is connected to an air intake interface of an air filter. A water contact sensor 1 is provided at the pipe opening at the other end of the pipe body near the end. An electric control valve 1 is installed in the pipe body. The water contact sensor 1 is connected to the electric control valve 1 through a signal line. The electric control valve 1 receives a valve closing command sent by the water contact sensor 1 and closes the valve through electrical control.

[0007] The second intake pipe is composed of a pipe body, a second water contact sensor, and a second electric control valve. The pipe opening at one end of the pipe body is connected to an air intake interface of the air filter. The pipe opening at the other end of the pipe body is provided with a second water contact sensor near the end. The second electric control valve is installed in the pipe body. The second water contact sensor is connected to the second electric control valve through a signal line. The second electric control valve receives a valve closing command sent by the second water contact sensor to close the valve through electrical control.

[0008] The exhaust pipe is fixed on the top of the casing, and the exhaust pipe is connected to the exhaust interface of the air filter to discharge the filtered clean gas.

[0009] Furthermore, the tube body of the intake pipe 1 includes two parts, the exhaust valve port of the electric control valve 1 is connected to an exhaust interface of the air filter through a section of the tube body, and the intake valve port of the electric control valve 1 is connected to another section of the tube body.

[0010] Furthermore, the tube body of the second intake pipe includes two parts, the exhaust valve port of the second electric control valve is connected to an exhaust interface of the air filter through a section of the tube body, and the intake valve port of the second electric control valve is connected to another section of the tube body.

[0011] Furthermore, the working modes of the variable intake air filter include:

[0012] (1) Under normal circumstances, the electronically controlled valve 1 is opened to enable the intake pipe 1 to work and the electronically controlled valve 2 is closed to enable the intake pipe 2 to not work;

[0013] (2) When water enters the intake pipe 1, the water sensor 1 senses the water, the electric control valve 1 is closed, and the intake pipe 2 does not work; the electric control valve 2 is opened, and the intake pipe 2 works to intake air;

[0014] (3) When water enters the intake pipe 2, the water sensor 2 senses the water, the electric control valve 2 is closed, and the intake pipe 2 does not work; the electric control valve 1 is opened, and the intake pipe 1 works to intake air;

[0015] (4) When water enters both the intake pipe 1 and the intake pipe 2, the water contact sensor 1 and the water contact sensor 2 sense water, and then the electric control valve 1 and the electric control valve 2 are both closed, and the intake pipe 1 and the intake pipe 2 do not work.

[0016] Furthermore, the electric-controlled valve 1 and the electric-controlled valve 2 are opened and closed by electric control or manual means. The electric-controlled valve 1 and the electric-controlled valve 2 are respectively connected in series with the water contact sensor 1 and the water contact sensor 2 through signal lines. The electric-controlled valve 1 and the electric-controlled valve 2 are respectively equipped with electric control relays to realize manual or electric opening and closing of the electric-controlled valve 1 and the electric-controlled valve 2.

[0017] Furthermore, the first air intake pipe is arranged at a windward position at the front of the vehicle, and the second air intake pipe is arranged at a high point position of the engine cover or a high point position of the top of the vehicle.

[0018] Compared with the prior art, the advantages of the present invention are: (1) preventing water from entering the engine: through the cooperation of the water contact sensor and the electronically controlled valve, the device can automatically switch the intake pipe when driving in rainy weather or wading, effectively preventing water from entering the engine and ensuring the safe operation of the engine; (2) ensuring high efficiency of engine intake: under normal circumstances, the device uses the intake pipe in the windward position to intake air, which can ensure that the engine obtains sufficient clean air for combustion and improve the operating efficiency of the engine; (3) improving driving safety: the device effectively prevents the engine from stalling due to water ingress, avoids traffic accidents caused by engine failure, and improves driving safety; (4) conforming to the public safety interest: the application of the device can reduce traffic accidents caused by water ingress to the engine, protect the safety of drivers, passengers and pedestrians, and conform to the public safety interest. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the patent of this invention.

[0020] Figure 2 It is a schematic structural diagram of an embodiment.

[0021] As shown in the figure: 1. Casing, 2. Intake pipe 1, 201. Water contact sensor 1, 202. Electric control valve 1, 3. Intake pipe 2, 301. Water contact sensor 2, 302. Electric control valve 2, 4. Exhaust pipe. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0023] Embodiment 1

[0024] like Figure 1 As shown, the main parts structure of this device includes:

[0025] (1) Casing 1: Made of durable metal material, with an air filter inside. The air inlet interface of the air filter is connected to the air inlet pipe 1 2 and the air inlet pipe 2 3 at both ends of the casing 1 through pipelines, and the exhaust interface is connected to the exhaust pipe 4 exposed on the top of the casing 1. The casing 1 is fixed in the engine compartment of the car by bolts or other fastening devices to ensure stability and reliability. It provides protection and support for the various components of the filter to ensure that air can enter smoothly and be discharged after being filtered.

[0026] (2) Intake pipe 2: It consists of a pipe body, a water contact sensor 202, and an electric control valve 203. One end of the pipe body is connected to an air inlet interface of the air filter, and the other end is provided with a water contact sensor 202 near the end, and an electric control valve 203 is installed in the pipe body. The water contact sensor 202 is connected to the electric control valve 203 through a signal line, and the electric control valve 203 is connected to the air filter through a pipeline. Under normal circumstances, the electric control valve 203 is open to allow air to enter; when the water contact sensor 202 detects water, it sends a valve closing command, and the electric control valve 203 is closed to prevent water from entering.

[0027] (3) Intake pipe 23: Similar to intake pipe 12, intake pipe 23 is also composed of a pipe body, a water contact sensor 2302, and an electric control valve 2303. The water contact sensor 2302 is connected to the electric control valve 2303 through a signal line, and the electric control valve 2303 is connected to the air filter through a pipeline. As a backup intake pipe, when water enters the intake pipe 12, the electric control valve 2303 opens to allow air to enter from the intake pipe 23; when the water contact sensor 2302 detects water, it sends a valve closing command and the electric control valve 2303 closes.

[0028] (4) Exhaust pipe 4: The exhaust pipe 4 is made of a lightweight, high temperature resistant material and is fixed to the top of the housing 1. The exhaust pipe 4 is connected to the exhaust interface of the air filter to discharge the filtered clean air. The filtered clean air is discharged to the engine to ensure the normal operation of the engine.

[0029] Embodiment 2

[0030] Based on the first embodiment, Figure 2 As shown, in this embodiment, the structures of the intake pipe 1 2 and the intake pipe 2 3 are modified, and they are arranged on both sides, and the middle parts of the intake pipe 1 2 and the intake pipe 2 3 are connected to meet the intake requirements of engines of different models.

[0031] Embodiment 3

[0032] Based on the first embodiment, Figure 1 As shown, the working process of this device is:

[0033] (1) Normal situation: the electronically controlled valve 203 is open, and the intake pipe 2 works to take in air; the electronically controlled valve 203 is closed, and the intake pipe 23 does not work. Air enters the air filter through the intake pipe 2 to be filtered, and then is discharged to the engine through the exhaust pipe 4.

[0034] (2) Water inflow into intake pipe 2: Water contact sensor 202 detects water and sends a valve closing command to electric control valve 203, which closes the intake pipe 2 and stops working. At the same time, electric control valve 203 opens and intake pipe 23 starts working and taking in air.

[0035] (3) Water inflow into intake pipe 23: Water contact sensor 2302 detects water and sends a valve closing command to electric control valve 2303, which closes the intake pipe 23 and stops working. At the same time, electric control valve 1203 opens and intake pipe 12 starts working and taking in air.

[0036] (4) Water enters both: Water contact sensor 1 202 and water contact sensor 2 302 both detect water and send valve closing instructions to electronically controlled valve 1 203 and electronically controlled valve 2 303 respectively. Both are closed, intake pipe 1 2 and intake pipe 2 3 both stop working, and the engine stops taking in air.

[0037] Embodiment 4

[0038] Based on the first embodiment, Figure 1 As shown, the specific implementation method of this scheme is:

[0039] (1) Installation: Fix the housing 1 in a suitable position in the engine compartment of the car to ensure that it is stable and reliable. Install the air filter inside the housing 1, ensuring that it is aligned with the interfaces of the intake pipe 1 2 and the intake pipe 2 3 and connected tightly. Install the intake pipe 1 2 and the intake pipe 2 3 at both ends of the housing 1 respectively, and connect the water contact sensor and the electronic control valve. Fix the exhaust pipe 4 on the top of the housing 1 and connect it tightly to the exhaust interface of the air filter.

[0040] (2) Debugging: Debug and test the device to ensure that the water contact sensor and the electronically controlled valve respond sensitively and accurately. At the same time, check whether the sealing and durability of the device meet the requirements.

[0041] (3) Connect the power supply: Connect the device to the car's power system to ensure that the device can work normally.

[0042] (4) Operation monitoring: During actual driving, observe the working status and effect of the device. When encountering rainy weather or wading, observe the switching of the intake pipe to ensure that water does not enter the engine.

[0043] (5) Maintenance and care: Regularly inspect and maintain the device to ensure the normal operation and durability of each component.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A variable air intake filter, characterized in that include: A casing (1), wherein an air filter is arranged in the casing (1), an air inlet interface of the air filter is connected to an air inlet pipe 1 (2) and an air inlet pipe 2 (3) respectively arranged at two ends of the casing (1) through a pipeline, and an air outlet interface of the air filter is connected to an exhaust pipe (4) exposed at the top of the casing (1); An air intake pipe (2), the air intake pipe (2) comprising a pipe body, a water contact sensor (202), and an electric control valve (203); a pipe opening at one end of the pipe body is connected to an air intake interface of an air filter; a water contact sensor (202) is provided at the other end of the pipe body near the end; an electric control valve (203) is installed in the pipe body; the water contact sensor (202) is connected to the electric control valve (203) via a signal line; the electric control valve (203) closes the valve through electrical control after receiving a valve closing instruction sent by the water contact sensor (202); The second air intake pipe (3) is composed of a pipe body, a second water contact sensor (302), and a second electric control valve (303). The pipe opening at one end of the pipe body is connected to an air intake interface of the air filter. The pipe opening at the other end of the pipe body is provided with a second water contact sensor (302) near the end. The second electric control valve (303) is installed in the pipe body. The second water contact sensor (302) is connected to the second electric control valve (303) through a signal line. The second electric control valve (303) receives a valve closing instruction sent by the second water contact sensor (302) to close the valve through electrical control. An exhaust pipe (4) is fixed on the top of the casing (1), and the exhaust pipe (4) is connected to an exhaust interface of an air filter to discharge the filtered clean gas.

2. The variable air intake filter according to claim 1, characterized in that: The tube body of the air intake pipe 1 (2) includes two parts, the exhaust valve port of the electric control valve 1 (203) is connected to an exhaust interface of the air filter through a section of the tube body, and the air intake valve port of the electric control valve 1 (203) is connected to another section of the tube body.

3. The variable air intake filter according to claim 1, characterized in that: The tube body of the second intake pipe (3) includes two parts. The exhaust valve port of the second electric control valve (303) is connected to an exhaust interface of the air filter through a section of the tube body, and the intake valve port of the second electric control valve (303) is connected to another section of the tube body.

4. A variable air intake filter according to claim 1, characterized in that The working modes of the variable intake air filter include: (1) Under normal circumstances, the electric control valve 1 (203) is opened, and the air intake pipe 1 (2) works; the electric control valve 2 (303) is closed, and the air intake pipe 2 (3) does not work; (2) When water enters the air intake pipe 1 (2), the water contact sensor 1 (202) senses the water, the electric control valve 1 (203) is closed, and the air intake pipe 2 (3) does not work; the electric control valve 2 (303) is opened, so that the air intake pipe 2 (3) works; (3) When water enters the air intake pipe 2 (3), the water contact sensor 2 (302) senses the water, the electric control valve 2 (303) is closed, and the air intake pipe 2 (3) does not work; the electric control valve 1 (203) is opened, and the air intake pipe 1 (2) works; (4) When water enters both the air intake pipe 1 (2) and the air intake pipe 2 (3), the water contact sensor 1 (202) and the water contact sensor 1 (202) sense water, and then the electric control valve 1 (203) and the electric control valve 2 (303) are both closed, and the air intake pipe 1 (2) and the air intake pipe 2 (3) do not work.

5. The variable air intake filter according to claim 1, characterized in that The electric control valve 1 (203) and the electric control valve 2 (303) are opened and closed by electric control or manual means. The electric control valve 1 (203) and the electric control valve 2 (303) are respectively connected in series with the water contact sensor 1 (202) and the water contact sensor 2 (302) through signal lines. The electric control valve 1 (203) and the electric control valve 2 (303) are respectively equipped with electric control relays to realize manual or electric opening and closing of the electric control valve 1 (203) and the electric control valve 2 (303).

6. The variable air intake filter according to claim 1, characterized in that The air intake pipe 1 (2) is arranged at the windward position of the front part of the automobile, and the air intake pipe 2 (3) is arranged at the high point of the engine cover or the high point of the top of the automobile.

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