CN110454302B - Air filter capable of preventing air cylinder from entering water - Google Patents
Air filter capable of preventing air cylinder from entering water Download PDFInfo
- Publication number
- CN110454302B CN110454302B CN201910864639.7A CN201910864639A CN110454302B CN 110454302 B CN110454302 B CN 110454302B CN 201910864639 A CN201910864639 A CN 201910864639A CN 110454302 B CN110454302 B CN 110454302B
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- shell
- level sensor
- air
- air inlet
- liquid level
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/024—Air cleaners using filters, e.g. moistened
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
- F02M35/088—Water, snow or ice proofing; Separation or drainage of water, snow or ice
Abstract
The invention discloses an air filter capable of preventing water from entering an air cylinder, which belongs to the field of external auxiliary equipment of a vehicle internal combustion engine and comprises a shell, wherein a filter element is arranged in the shell, an air outlet and an air inlet which are respectively distributed on the upper side and the lower side of the filter element are arranged on the shell, an air inlet lifting device is arranged on the air inlet, a water filtering device is arranged between the filter element and the bottom of the shell, and a drainage device is arranged at the bottom of the shell, so that the phenomena of flameout and cylinder explosion of the internal combustion engine caused by water entering an.
Description
Technical Field
The invention belongs to the field of external auxiliary equipment of a vehicle internal combustion engine, and particularly relates to an air filter capable of preventing water from entering an air cylinder.
Background
In rainstorm or typhoon weather, a large amount of water is always accumulated on urban road surfaces. The driver judges that the accumulated water height is inaccurate or the countermeasure is improper, so that the accumulated water on the road surface enters the cylinder through the air filter. Because the liquid water has the characteristic of non-compressibility, the piston connecting rod mechanism in the cylinder of the automobile engine bears excessive load, so that the piston connecting rod mechanism is seriously damaged, the phenomena of cylinder explosion, flameout and the like occur, the vehicle is seriously damaged, and people are trapped.
Although the traditional internal combustion engine air filter has a simple structure and can better filter impurities in intake air, the traditional internal combustion engine air filter has no functions of monitoring the water quantity entering the air filter, giving a warning in time, draining water in time and the like. With the common use of vehicles, the annual automobile sales volume in China is nearly 3000 thousands, coastal areas in China are developed economically and have large automobile sales volume, and meanwhile, the coastal areas have more typhoon weather and strong convection weather and are often accumulated with water on road surfaces. The automobile can generate surge when running on a water accumulation road surface, the height of the surge is positively correlated with the running speed of the automobile, the difficulty of estimating the height of the water accumulation on the road surface by a driver is increased, and the possibility that the water accumulation enters an engine cylinder through an air filter is also increased. Based on the above reasons, the design of the air filter of the engine needs to consider the functions of monitoring water inflow, warning in time and discharging accumulated water in the air filter in time. The existing air filter has no functions of monitoring the water inlet condition of the air filter, warning water inlet and automatically draining water.
Disclosure of Invention
The invention aims to provide an air filter capable of preventing water from entering an air cylinder.
The technical scheme adopted by the invention is as follows: the utility model provides a prevent cylinder intaking type air cleaner, includes the casing, is provided with the filter core in the casing, be equipped with gas outlet and the air inlet that distributes both sides about the filter core respectively on the casing, install air inlet hoisting device on the air inlet, be provided with water filtering device between filter core and the casing bottom, the casing bottom has drainage device.
Furthermore, the air inlet lifting device comprises a shell, a corrugated pipe, a first spring, an upper end cover and an electromagnetic limiting device, wherein the shell is fixed on the air inlet, the corrugated pipe is arranged in the shell, the lower end of the corrugated pipe is communicated with the air inlet, the upper end of the corrugated pipe is fixed on the upper end cover, the upper end cover is provided with a plurality of through holes, the corrugated pipe is communicated with the outside through the through holes, and two ends of the first spring respectively abut against the bottom of the shell and the upper end cover; the electromagnetic limiting device is arranged at the upper end of the shell and used for limiting whether the upper end cover is pushed out of the shell by the first spring or not.
Furthermore, the shell is of a hollow tubular structure, a lower end cover is installed at the bottom of the shell, a through hole is formed in the center of the lower end cover, and the through hole is sleeved on the air inlet.
Further, electromagnetism stop device includes stopper, first electro-magnet, second spring, is adsorbed the piece, shell top inboard evenly opens along the circumferencial direction has two at least mounting grooves, and stopper, first electro-magnet, second spring, adsorbed the piece and install in proper order in the mounting groove from outside to inside.
Furthermore, the edge outer ring of the upper end cover is provided with an elastic buckle, and the upper ends of the corrugated pipes are connected together through the elastic buckle of the upper end cover.
Further, the lower end cover is connected with the air inlet through a threaded connection mode.
Furthermore, the water filtering device comprises a guide rail, a water filtering disc and an electromagnetic lifting control device, the guide rail is fixed on the inner wall of the filter, the water filtering disc is arranged on the guide rail in a sliding mode, the edge of the outermost ring of the water filtering disc is provided with a strong magnetic material, and the lifting of the water filtering disc is controlled through the electromagnetic lifting control device.
Furthermore, the lower surface of the water filtering disc is provided with a plurality of inverted cone structures with big top and small bottom, and each inverted cone structure is provided with a through hole penetrating through the water filtering disc.
Further, the electromagnetic lifting control device comprises a second electromagnet and a third electromagnet which are respectively arranged at the upper end and the lower end of the guide rail.
Further, the outer surface of the inverted cone-shaped structure is uneven.
Furthermore, the drainage device is a drainage valve, the valve is opened by the drainage valve according to the electrification of the electromagnetic coil, the valve is closed by the outage, and the drainage device is installed in the central position of the bottom shell of the circular-arc air filter, so that the drainage device is favorable for draining water completely.
Further, the bottom of the shell is arc-shaped.
Further, first photoelectricity level sensor and second photoelectricity level sensor are installed to bottom in the casing, first photoelectricity level sensor is close to drainage device, second photoelectricity level sensor is located the below department of air inlet, third photoelectricity level sensor is installed to the below department of the outer air inlet of casing for monitor surface gathered water height, first photoelectricity level sensor, second photoelectricity level sensor and third photoelectricity level sensor all transmit the signal of gathering for the controller, still be connected with the voice broadcast ware on the controller.
Furthermore, the first electromagnet, the second electromagnet, the third electromagnet and the drainage device are all controlled by a controller.
Further, the voice broadcaster is installed in the cab.
The invention has the beneficial effects that:
1. compared with the traditional air filter of the internal combustion engine of the vehicle, the automatic telescopic corrugated pipe is arranged at the air inlet, and when the third photoelectric liquid level sensor does not monitor the condition of water accumulation on the road surface, the automatic telescopic corrugated pipe is in a compressed state and normally admits air. When the vehicle travels on a deeper ponding road surface, the third photoelectric liquid level sensor detects that the ponding on the road surface is deeper, and the corrugated pipe automatically extends to avoid external water to enter the air filter.
2. When the first photoelectric liquid level sensor monitors that water enters the air filter, the controller enables the water filtering disc to automatically rise to the highest point, the lower portion of the water filtering disc is provided with the inverted cone structure, each inverted cone structure is provided with the small hole, the outer wall of each inverted cone structure is uneven, the flowing water is conveniently accumulated and blocked at the convex and concave portions of the corrugated shape and falls back, and therefore the phenomena that the engine is flamed out and explodes and the like due to the fact that the water enters the air cylinder are avoided.
3. The bottom of the air filter is designed into an arc shape, which is beneficial to collecting water flowing into the air filter, and the bottom of the air filter is provided with a direct-acting electromagnetic one-way drain valve, and the controller automatically opens the drain valve according to the water inflow information fed back by the photoelectric liquid level sensor to discharge the water inflow in the air filter.
4. The bottom of the air filter is provided with the first photoelectric liquid level sensor and the second photoelectric liquid level sensor, and the controller gives an alarm to a driver through the voice broadcaster according to the information of the two sensors to prompt the driver to drive the vehicle correctly.
Drawings
FIG. 1 is a cross-sectional elevation view of an air cleaner;
FIG. 2 is a top view of the air cleaner taken along section A-A;
FIG. 3 is a cross-sectional elevation view of the water filter tray at the lowest point;
FIG. 4 is a circuit diagram of the air cleaner preventing water from entering the cylinder;
in the figure: casing 1, filter core 2, gas outlet 3, the air inlet 4, shell 5, bellows 6, first spring 7, upper end cover 8, perforating hole 9, lower end cover 10, stopper 11, first electro-magnet 12, second spring 13, by adsorbing piece 14, buckle 15, guide rail 16, water strainer 17, strong magnetic material 18, second electro-magnet 19, third electro-magnet 20, back taper structure 21, through-hole 22, drain valve 23, first photoelectricity level sensor 24, second photoelectricity level sensor 25, third photoelectricity level sensor 26, voice broadcast ware 27, battery 28.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. In the following description and in the drawings, the same numbers in different drawings identify the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims. Various embodiments of the present description are described in an incremental manner.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions referred to as "first", "second", etc. in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
As shown in fig. 1-4, the invention provides a cylinder water inlet prevention type air filter, which comprises a shell 1, wherein a filter element 2 is arranged in the shell 1, an air outlet 3 and an air inlet 4 which are respectively distributed on the upper side and the lower side of the filter element 2 are arranged on the shell 1, an air inlet lifting device is arranged on the air inlet 4, a water filtering device is arranged between the filter element 2 and the bottom of the shell 1, and a water drainage device is arranged at the bottom of the shell 1.
In the present embodiment, two intake ports 4 are symmetrically provided on the left and right sides of the casing 1 to increase the amount of intake air.
In this embodiment, the air inlet lifting device includes a housing 5, a bellows 6, a first spring 7, an upper end cover 8, and an electromagnetic limiting device, where the housing 5 is fixed on the air inlet 4, the bellows 6 is disposed in the housing 5, a lower end of the bellows 6 is communicated with the air inlet 4, an upper end of the bellows 6 is fixed on the upper end cover 8, the upper end cover 8 is provided with a plurality of through holes 9, and the bellows 6 is communicated with the outside through the through holes 9, so as to facilitate the suction of air; two ends of the first spring 7 respectively prop against the bottom of the shell 5 and the upper end cover 8; an electromagnetic limiting device is arranged at the upper end of the shell 5 and is used for limiting whether the upper end cover 8 is pushed out of the shell 5 by the first spring 7.
The shell 5 is of a hollow tubular structure, a lower end cover 10 is installed at the bottom of the shell 5, a through hole is formed in the center of the lower end cover 10, and the lower end cover and the air inlet 4 are connected together in a threaded connection mode.
The first spring 7 is fixedly connected inside the corrugated pipe 6 and can automatically extend and retract together with the corrugated pipe 6.
Electromagnetic stop device includes stopper 11, first electro-magnet 12, second spring 13, is adsorbed piece 14, 5 top inboards of shell are evenly opened along the circumferencial direction and are had two at least mounting grooves, and the mounting groove is along cutting along radial direction, stopper 11, first electro-magnet 12, second spring 13, are adsorbed piece 14 and outwards install in the mounting groove in proper order, are adsorbed piece 14 promptly and fix the innermost at the mounting groove, and the both ends of second spring 13 are connected with first electro-magnet 12 and adsorbed piece 14 respectively, and first electro-magnet 12 is fixed on stopper 11.
The edge outer ring of the upper end cover 8 is provided with an elastic buckle 15, and the upper ends of the corrugated pipes 6 are connected together through the elastic buckle 15 of the upper end cover 8. The effect of elasticity buckle is, when the bellows damaged, convenient follow-up change.
In an initial state, the upper end cover 8 is clamped by the limiting block 11, so that the corrugated pipe 6 and the first spring 7 are both compressed in the shell 5; when first electro-magnet 12 circular telegram, first electro-magnet 12 produces magnetism, first electro-magnet 12 with adsorb 14 production magnetic attraction, thereby it removes to tend to make stopper 11 towards adsorbed 14 directions, stopper 11 breaks away from upper end cover 8 this moment, under the effect of the spring force of first spring 7, first spring 7 extension, thereby drive bellows 6 and upper end cover 8 and upwards promote, accomplished the promotion of air inlet 4.
When the air inlet 4 does not need to be lifted, the first electromagnet 12 is powered off, the upper end cover 8 is pressed downwards by hand and is embedded into the shell 5 again until the upper end cover is clamped by the limiting block 11, and the engine cover can be opened for operation when the automobile reaches the destination.
In order to stabilize the limiting and facilitate the upper end cover 8 to be clamped again, the limiting block 11 is of a wedge-shaped structure, the lower surface is a plane, the plane is used for clamping the upper surface of the upper end cover 8, the wedge-shaped surface is arranged on the upper surface, when the upper end cover 8 is pressed down, the lower surface of the upper end cover 8 firstly contacts with the wedge-shaped surface, under the guidance of the wedge-shaped surface, the limiting block 11 retreats until the upper end cover 8 completely passes through the back, the limiting block pops out under the action of the second spring 13, and then the lower surface clamps the upper surface of the upper end.
In this embodiment, the water filtering device includes a guide rail 16, a water filtering disc 17, and an electromagnetic lifting control device, the guide rail 16 is fixed on the inner wall of the housing 1, two ends of the guide rail 16 are bridged over the upper and lower ends of the air inlet 4, the water filtering disc 17 is slidably disposed on the guide rail 16, the guide rail 16 has a plurality of pieces arranged in the up-down direction, the edge of the outermost ring of the water filtering disc 17 has a ferromagnetic material 18 (the ferromagnetic material generally refers to a ferromagnetic material and a ferrimagnetic material, although the ferromagnetic material may not be a magnetic material, as long as the ferromagnetic material can be attracted by a magnet), the electromagnetic lifting control device includes a second electromagnet 19 and a third electromagnet 20 respectively disposed on the upper and lower ends of the guide rail 16, the electromagnetic lifting control device controls the lifting of the water filtering disc 17 along the guide rail 16, the highest position is located on the upper.
In the initial state, in order to provide a larger air intake, the water filter disc 17 is located at the lowest position of the guide rail 16, and the air entering from the air inlet 4 directly enters the filter element 2 and then is discharged from the air outlet 3.
When the first photoelectric liquid level sensor detects that the housing 1 is filled with water, the controller lifts the water filter tray 17 to the topmost end of the guide rail 16. The upper surface of the water filtering disc 17 is flat, the lower surface of the water filtering disc is provided with a plurality of inverted cone structures 21 with big top and small bottom, and each inverted cone structure 21 is provided with a through hole 22 penetrating through the water filtering disc 17. The surface unevenness of back taper structure 21, its effect is, when intaking in the casing, the water in the air and unevenness's surface bond together, save and hinder and fall back, when water accumulation is enough many, will be in the same direction as back taper structure 21 and down drip to filter the water that flows into in the casing, and then the air just flows out from through-hole 22. When the air flows out from the through holes of the water filtering disc 17, redundant moisture in the air is filtered by the water filtering disc 17, and clean air flows into a cylinder of the internal combustion engine from the air outlet 3 under the filtering of the filter element 2.
In this embodiment, the drain device is a drain valve 23. The drain valve 23 adopts a direct-acting electromagnetic one-way drain valve which is installed at the bottom of the shell 1 in a threaded connection mode. The valve is opened when the drainage valve is powered on, and is closed when the drainage valve is powered off. Further the bottom of the shell 1 is designed to be arc-shaped, so that water flowing into the filter can be conveniently collected and stored water can be conveniently and quickly discharged.
In this embodiment, first photoelectricity level sensor 24 and second photoelectricity level sensor 25 are installed to bottom in the casing 1, and first photoelectricity level sensor 24 is close to drainage device, and second photoelectricity level sensor 25 is located the below department of air inlet 4, and third photoelectricity level sensor 26 is installed to the below department of air inlet 4 outside casing 1 for the monitoring surface ponding height. First photoelectric liquid level sensor 24, second photoelectric liquid level sensor 25 and third photoelectric liquid level sensor 26 all transmit the signal of gathering for the controller, still are connected with voice broadcast ware 27 on the controller, voice broadcast ware 27 dress is in the driver's cabin.
Further, the first electromagnet 12, the second electromagnet 19 and the third electromagnet 20 are all controlled by the controller ECU. Note that the controller ECU takes power from the battery 28 in the automobile.
When the vehicle traveles on ponding road surface, ponding when third photoelectric liquid level sensor 26 detects the road surface can flow into air cleaner, controller ECU is transfered the signal to third photoelectric liquid level sensor 26, controller ECU makes first electro-magnet 12 circular telegram, make stopper 11 retreat, no longer play the limiting displacement to upper end cover 8, bellows 6 extends under the effect of first spring 7 this moment, the state of air inlet hoisting device on the right in figure 1 for the extension, thereby avoid in the ponding flows into casing 1.
Further, the controller ECU broadcasts a voice to the driver through the voice broadcaster, indicating that the bellows 6 has been extended.
The first electromagnet 12 is energized for 2s under the controller ECU, and is deenergized after 2 s. After the water accumulation section comes out, the driver manually presses the upper end cover 8 back into the shell 5.
In an initial state, in order to provide larger air inflow, the water filtering disc 17 is positioned at the lowest position of the guide rail 16, when the first photoelectric liquid level sensor 24 detects that water flows into the shell 1, the controller ECU energizes the second electromagnet 19, so that the magnetism of the second electromagnet 19 is opposite to that of the strong magnetic material 18 at the edge of the water filtering disc 17, and the water filtering disc 17 is driven to move upwards; similarly, the controller ECU may also energize the third electromagnet 20, so that the magnetism of the third electromagnet 20 is the same as the magnetism of the ferromagnetic material 18 at the edge of the water filter disc 17, thereby driving the water filter disc 17 to move upward; it should be noted that the second electromagnet 19 and the third electromagnet 20 are energized simultaneously to the controller ECU, so that a stronger upward thrust can be generated, preferably in this manner.
When the second photoelectric liquid level sensor 25 detects that the accumulated water at the bottom of the air filter is deep, the controller ECU sends an instruction, the direct-acting electromagnetic one-way drain valve 23 is powered on, the drain valve is opened to drain the accumulated water at the bottom of the shell 1, and when the first photoelectric liquid level sensor 24 detects that the water at the bottom of the filter is drained, the electromagnetic one-way drain valve 23 is powered off, and the drain valve is closed. The controller ECU de-energizes the second and third electromagnets 19 and 20 or energizes the second and third electromagnets 19 and 20 with reverse currents so that the water filter disc 17 is brought back to the lowest point as shown in fig. 3.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (3)
1. An air filter capable of preventing water from entering an air cylinder comprises a shell, wherein a filter element is arranged in the shell, and an air outlet and an air inlet which are respectively distributed at the upper side and the lower side of the filter element are arranged on the shell;
the air inlet lifting device comprises a shell, a corrugated pipe, a first spring, an upper end cover and an electromagnetic limiting device, wherein the shell is fixed on an air inlet, the corrugated pipe is arranged in the shell, the lower end of the corrugated pipe is communicated with the air inlet, the upper end of the corrugated pipe is fixed on the upper end cover, the upper end cover is provided with a plurality of through holes, the corrugated pipe is communicated with the outside through the through holes, and two ends of the first spring respectively abut against the bottom of the shell and the upper end cover; the electromagnetic limiting device is arranged at the upper end of the shell and used for limiting whether the upper end cover is pushed out of the shell by the first spring or not;
the electromagnetic limiting device comprises a limiting block, a first electromagnet, a second spring and an adsorbed block, wherein at least two mounting grooves are uniformly formed in the inner side of the top end of the shell along the circumferential direction, and the limiting block, the first electromagnet, the second spring and the adsorbed block are sequentially mounted in the mounting grooves from outside to inside;
the water filtering device comprises a guide rail, a water filtering disc and an electromagnetic lifting control device, wherein the guide rail is fixed on the inner wall of the filter, the water filtering disc is arranged on the guide rail in a sliding manner, the edge of the outermost ring of the water filtering disc is provided with a strong magnetic material, and the lifting of the water filtering disc is controlled by the electromagnetic lifting control device;
the lower surface of the water filtering disc is provided with a plurality of inverted cone structures with large upper parts and small lower parts, and each inverted cone structure is provided with a through hole penetrating through the water filtering disc;
the outer surface of the inverted cone-shaped structure is uneven;
the electromagnetic lifting control device comprises a second electromagnet and a third electromagnet which are respectively arranged at the upper end and the lower end of the guide rail;
a first photoelectric liquid level sensor and a second photoelectric liquid level sensor are mounted at the bottom in the shell, the first photoelectric liquid level sensor is close to the drainage device, the second photoelectric liquid level sensor is located below the air inlet, a third photoelectric liquid level sensor is mounted below the air inlet outside the shell, and the first photoelectric liquid level sensor, the second photoelectric liquid level sensor and the third photoelectric liquid level sensor transmit collected signals to the controller;
the first electromagnet, the second electromagnet, the third electromagnet and the drainage device are all controlled by a controller.
2. The air cleaner of claim 1, wherein the drain is a drain valve.
3. The air cleaner of claim 1, wherein the controller is further connected to a voice announcement device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864639.7A CN110454302B (en) | 2019-09-12 | 2019-09-12 | Air filter capable of preventing air cylinder from entering water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910864639.7A CN110454302B (en) | 2019-09-12 | 2019-09-12 | Air filter capable of preventing air cylinder from entering water |
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| Publication Number | Publication Date |
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| CN110454302A CN110454302A (en) | 2019-11-15 |
| CN110454302B true CN110454302B (en) | 2020-06-16 |
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| CN201910864639.7A Active CN110454302B (en) | 2019-09-12 | 2019-09-12 | Air filter capable of preventing air cylinder from entering water |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3736777C1 (en) * | 1987-10-30 | 1988-12-15 | Daimler Benz Ag | Device for avoiding the ingress of water into an air filter housing |
| CN202117808U (en) * | 2011-06-15 | 2012-01-18 | 周峰 | Air filtering device for automobile |
| CN203769907U (en) * | 2014-04-18 | 2014-08-13 | 长安大学 | Height-adjustable waterproof exhaust pipe capable of being fixed at tail of automobile |
| CN106080488A (en) * | 2016-08-25 | 2016-11-09 | 伍乐霜 | Multifunctional safe vehicle |
| CN206929018U (en) * | 2017-03-17 | 2018-01-26 | 李征洋 | A kind of vehicle intake mouth for lifting vehicle fordability |
-
2019
- 2019-09-12 CN CN201910864639.7A patent/CN110454302B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3736777C1 (en) * | 1987-10-30 | 1988-12-15 | Daimler Benz Ag | Device for avoiding the ingress of water into an air filter housing |
| CN202117808U (en) * | 2011-06-15 | 2012-01-18 | 周峰 | Air filtering device for automobile |
| CN203769907U (en) * | 2014-04-18 | 2014-08-13 | 长安大学 | Height-adjustable waterproof exhaust pipe capable of being fixed at tail of automobile |
| CN106080488A (en) * | 2016-08-25 | 2016-11-09 | 伍乐霜 | Multifunctional safe vehicle |
| CN206929018U (en) * | 2017-03-17 | 2018-01-26 | 李征洋 | A kind of vehicle intake mouth for lifting vehicle fordability |
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Effective date of registration: 20230804 Address after: No. 13 Century Road North, Free Trade Pilot Zone, Yingkou City, Liaoning Province, 115000 Patentee after: LIAONING WANYIDA INTELLIGENT EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 310004 Room 301, unit 5, building 8, Changde apartment, Xiacheng District, Hangzhou City, Zhejiang Province Patentee before: Chen Hongye |
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