CN114165368B - Air filter air inlet wind guiding structure and engine air intake system - Google Patents
Air filter air inlet wind guiding structure and engine air intake system Download PDFInfo
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- CN114165368B CN114165368B CN202111430120.1A CN202111430120A CN114165368B CN 114165368 B CN114165368 B CN 114165368B CN 202111430120 A CN202111430120 A CN 202111430120A CN 114165368 B CN114165368 B CN 114165368B
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- air
- air inlet
- pipeline
- guide pipe
- outlet
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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
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10013—Means upstream of the air filter; Connection to the ambient air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/02—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
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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
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to an air filter air inlet air guide structure and an engine air inlet system. The air guide structure comprises an air guide pipe body, wherein the air guide pipe body is provided with a first air inlet, a second air inlet and an air outlet, the position of the second air inlet is higher than that of the first air inlet, the position of the air outlet is higher than that of the second air inlet, the position of the first air inlet is close to an opening of the front protection grid, and the air outlet is used for being connected with an air inlet of the air filter; the second air inlet is provided with a first openable baffle, when the first air inlet is blocked, the first openable baffle is opened through negative pressure generated by air suction of the engine, and air flows in from the second air inlet to supply air inflow. The invention also provides an engine air inlet system which comprises the air guide structure. The invention solves the problems that the inlet of the air guide pipe of the existing air filter is close to the opening under the front protective grating, the risk of being easily submerged by water exists, and the engine cannot obtain enough air inflow, so that the engine is flameout and the normal running of the vehicle is affected.
Description
Technical Field
The invention relates to the technical field of air inlet systems of automobile engines, in particular to an air filter air inlet air guide structure and an engine air inlet system.
Background
The air filter is a device for providing clean air for the engine on the automobile and prevents the engine from sucking substances such as leaves, stones, large particles, rain and snow and the like into the engine. The air intake of the air filter is typically located above the front radiator module and adjacent to the front radiator module. In order to ensure normal operation of an engine and the requirement for air inflow, the air inlet is generally required to have the functions of rain prevention, snow prevention, wading prevention, fresh and low-temperature air outside a vehicle and the like.
Along with the slow popularization of the pure electric vehicle, the defects of slow charging and short endurance mileage are gradually exposed, and under the promotion of market demand, the range-extending vehicle has the comfortable driving performance of the pure electric vehicle, and the range-extending vehicle can generate electricity for the battery through the engine so as to infinitely extend the endurance mileage, so that the development of the range-extending vehicle gradually becomes a trend. An extended range automobile is used as one of electric vehicles, and is generally required to be shaped to have the style of a pure electric vehicle, so that the front protection grille has an essential difference from a conventional fuel vehicle type, and the front protection grille is particularly characterized in that only a small number of lower openings are reserved on the front protection grille. In order to ensure that the air inlet has fresh and low-temperature air, the air guide pipe is required to extend downwards so that the inlet of the air guide pipe is close to the lower opening of the front grille. But the lower opening of the front grille is positioned at a lower position, when the automobile runs to a low-lying water-flooding road surface, the risk of being submerged by water easily exists at the inlet of the air guide pipe, so that the engine cannot obtain enough air inflow from the air inlet, and therefore the engine is flameout, and the normal running of the automobile is affected.
Disclosure of Invention
The invention aims to provide an air guide structure of an air filter air inlet and an engine air inlet system, which are used for solving the problems that when an automobile runs to a low-lying water-flooding road surface, the risk of being easily submerged by water exists, and the engine cannot obtain enough air inflow from the air inlet, so that the engine is flameout and the normal running of the automobile is affected.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the air guide structure comprises an air guide pipe body, wherein the air guide pipe body is provided with a first air inlet, a second air inlet and an air outlet, the position of the second air inlet is higher than that of the first air inlet, the position of the air outlet is higher than that of the second air inlet, the position of the first air inlet is close to an opening of a front protection grid, and the air outlet is used for being connected with an air inlet of an air filter;
the second air inlet is provided with a first openable baffle, and when the first air inlet is blocked, the first openable baffle is opened through negative pressure generated by air suction of the engine, so that air flows in from the second air inlet, and the supply of air inflow is realized.
Preferably, the opening of the first air inlet faces to the opening of the front protection grille;
the opening of the second air inlet faces downwards, so that the first openable baffle is closed by self gravity.
Preferably, an outlet is further arranged on the pipeline from the first air inlet to the air outlet of the air guide pipe body, and a second openable baffle is arranged at the outlet, so that impurities in air entering from the first air inlet push away the second openable baffle under the action of inertia and leave from the outlet.
Preferably, the air guide pipe body comprises an air guide pipe with a Z-shaped structure and an air guide pipe with an L-shaped structure, and the side wall of the upper horizontal section of the air guide pipe with the Z-shaped structure is communicated with the side wall of the horizontal section of the air guide pipe with the L-shaped structure through a straight line pipe;
the end part of the lower horizontal section of the Z-shaped air guide pipeline is the first air inlet, and the end part of the upper horizontal section is the outlet;
the end part of the vertical section of the air guide pipeline with the L-shaped structure is the second air inlet, and the end part of the horizontal section is the air outlet.
Preferably, a first annular step is formed on the inner side wall of the pipeline of the air guide pipe body close to the second air inlet, so that the diameter of the interior of the pipeline is larger than that of the second air inlet;
one end of the first openable baffle is rotatably connected to the inner side wall of the pipeline close to the first annular step, and the other end of the first openable baffle is in contact with the first annular step.
Preferably, a second annular step is formed at the end of the outlet, one end of the second openable baffle is rotatably connected to the inner side wall of the pipeline close to the second annular step, and the other end of the second openable baffle is in contact with the second annular step.
Preferably, a groove is formed on the inner side wall of the pipeline close to the first annular step, and a first protrusion clamped with the groove is formed at one end of the first openable baffle;
a groove is formed on the inner side wall of the pipeline close to the second annular step, and a second protrusion clamped with the groove is formed at one end of the second openable baffle.
Preferably, the air guide pipe body, the first openable baffle and the second openable baffle are made of plastic.
Preferably, the air outlet pipeline is assembled with the air inlet pipeline of the air filter together through sponge in an interference mode, and the air outlet pipeline is fixed on the front upper component of the vehicle body through bolts or clamping.
The invention also provides an engine air inlet system, which comprises the air filter air inlet air guide structure.
The invention has the beneficial effects that:
1) Through setting up the second air intake on the guide duct body, when the car is gone to low-lying flood road surface, first air intake is submerged by the water, the produced negative pressure effect of engine inspiration this moment makes water be inhaled in the guide duct, when water gets into certain altitude in the guide duct, negative pressure in the guide duct risees, when the negative pressure reaches the self weight of overcoming first openable baffle of second air intake department, first openable baffle is opened, the air flows in from the second air intake, has realized the supply of engine air input and has prevented the requirement of wading. When the automobile drives away from the low-lying water-diffusing road surface and normally runs, water in the air guide pipe falls back and flows out from the first air inlet, meanwhile, the first openable baffle arranged at the second air inlet is closed by self gravity, the air suction process returns to normal, and fresh and low-temperature air outside the automobile flows in from the first air inlet through the opening of the front protective grille. The problems that when an automobile runs to a low-lying water-flooding road surface, the risk of being easily submerged by water exists, and the engine cannot obtain enough air inflow from the air inlet, so that the engine is flameout and the normal running of the automobile is influenced are solved;
2) The opening of the first air inlet is set to be an opening towards the front grille, so that fresh low-temperature air outside the automobile smoothly enters the air guide pipe, the required air inflow of the engine is ensured, and meanwhile, the opening of the second air inlet is set to be downward, so that the first openable baffle can be reliably closed by self gravity in the normal operation process of the automobile, and the use of parts is reduced;
3) Through arranging the outlet on the pipeline from the first air inlet to the air outlet of the air guide pipe body, impurities in air entering from the first air inlet push away the second openable baffle under the inertia effect and leave from the outlet, thereby realizing preliminary filtration, avoiding large-particle impurities from entering the air filter, and prolonging the service life of the air filter;
4) The first annular step is formed on the inner side wall of the pipeline of the air guide pipe body, so that the diameter of the inner part of the pipeline is larger than that of the second air inlet, one end of the first openable baffle is rotationally connected to the inner side wall of the pipeline close to the first annular step, and the other end of the first openable baffle is contacted with the first annular step, so that the one-way opening of the first openable baffle is realized; meanwhile, one end of the second openable baffle is rotationally connected to the inner side wall of the pipeline close to the second annular step by forming the second annular step at the end part of the outlet, the other end of the second openable baffle is contacted with the second annular step, thereby realizing the unidirectional opening of the second openable baffle,
5) Through adopting the sponge to be in the same place with the air inlet pipeline interference fit of air outlet pipeline and air filter, avoided the hot air of the radiator module of place ahead to flow in from the clearance of air outlet pipeline and air filter's air inlet pipeline, simultaneously, fix the air outlet pipeline on the preceding upper member of automobile body through bolt or joint, avoided the vehicle operation in-process, the guide duct takes place to rock, in automobile engine air intake system technical field, have popularization and application and worth.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3;
FIG. 7 is a schematic structural view of an air filter air inlet air guide structure installation.
The air guide pipe comprises a 1-air guide pipe body, a 101-first air inlet, a 102-second air inlet, a 103-air outlet, a 104-outlet, a 105-first annular step and a 106-second annular step; 2-front grille, 201-opening; 3-air inlet of air filter; 4-a first openable flap, 401-a first projection; 5-a second openable flap, 501-a second projection; 6-sponge; 7-a front upper member; 8-heat sink module.
Detailed Description
Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
As shown in fig. 1 to 7, an air inlet air guide structure of an air filter comprises an air guide pipe body 1, wherein the air guide pipe body 1 is provided with a first air inlet 101, a second air inlet 102 and an air outlet 103, the position of the second air inlet 102 is higher than that of the first air inlet 101, the position of the air outlet 103 is higher than that of the second air inlet 102, the position of the first air inlet 101 is close to an opening 201 of a front grille 2, and the air outlet 103 is used for being connected with an air inlet 3 of the air filter;
the second air inlet 102 is provided with a first openable baffle 4, and when the first air inlet 101 is blocked, the first openable baffle 4 is opened by negative pressure generated by air suction of the engine, so that air flows in from the second air inlet 102, and the supply of air inflow is realized.
Through setting up the second air intake on the guide duct body, when the car is gone to low-lying flood road surface, first air intake is submerged by the water, the produced negative pressure effect of engine inspiration this moment makes water be inhaled in the guide duct, when water gets into certain altitude in the guide duct, negative pressure in the guide duct risees, when the negative pressure reaches the self weight of overcoming first openable baffle of second air intake department, first openable baffle is opened, the air flows in from the second air intake, has realized the supply of engine air input and has prevented the requirement of wading. When the automobile drives away from the low-lying water-diffusing road surface and normally runs, water in the air guide pipe falls back and flows out from the first air inlet, meanwhile, the first openable baffle arranged at the second air inlet is closed by self gravity, the air suction process returns to normal, and fresh and low-temperature air outside the automobile flows in from the first air inlet through the opening of the front protective grille. The problem of current air cleaner's guide duct import is close to preceding and protects trompil under the grid, when the car was gone to low-lying flood road surface, had the risk of easily being submerged by water, led to the engine unable to obtain sufficient air input from the air inlet to make the engine stall, influence the normal running of vehicle is solved.
The air filter air inlet air guide structure is suitable for electric automobiles, can effectively control the air inlet temperature of extended range automobiles, meets the requirements of rain prevention, snow prevention and wading prevention, and has the advantages of simple structure and wide application range.
The opening of the first air inlet 101 faces to the opening 201 of the front protection grille 2;
the opening of the second air inlet 102 faces downwards, so that the first openable baffle 4 is closed by self gravity.
Through setting the opening of the first air inlet to be the opening towards the front grille, fresh low-temperature air outside the automobile smoothly enters the air guide pipe, the required air inflow of the engine is ensured, and meanwhile, the opening of the second air inlet is set to be downwards, so that the first openable baffle is reliably closed by self gravity in the normal operation process of the automobile, and the use of parts is reduced.
An outlet 104 is further arranged on the pipeline of the air guide pipe body 1 from the first air inlet 101 to the air outlet 103, and a second openable baffle 5 is arranged at the outlet 104, so that impurities in air entering from the first air inlet 101 push away the second openable baffle 5 under the action of inertia and leave from the outlet 104.
Through set up the export on the pipeline of the guide duct body of first air intake to air outlet, make the impurity in the air that gets into from first air intake push away the second under inertial action and can open the baffle, leave from the export to realized preliminary filtration, avoided the impurity entering air filter of macroparticles, prolonged the life of air filter.
The air guide pipe body 1 comprises an air guide pipe with a Z-shaped structure and an air guide pipe with a L-shaped structure, wherein the side wall of the upper horizontal section of the air guide pipe with the Z-shaped structure is communicated with the side wall of the horizontal section of the air guide pipe with the L-shaped structure through a straight line pipe;
the end part of the lower horizontal section of the Z-shaped air guide pipeline is provided with a first air inlet 101, and the end part of the upper horizontal section is provided with an outlet 104;
the end of the vertical section of the air guide pipeline with the 'L' -shaped structure is a second air inlet 102, and the end of the horizontal section is an air outlet 103.
A first annular step 105 is formed on the inner side wall of the pipeline of the air guide pipe body 1 close to the second air inlet 102, so that the diameter of the interior of the pipeline is larger than that of the second air inlet 102;
one end of the first openable baffle 4 is rotatably connected to the inner side wall of the pipeline near the first annular step 105, and the other end is in contact with the first annular step 105.
Through forming first annular step on the inside wall of the pipeline of guide duct body, make the inside diameter of pipeline be greater than the diameter of second air intake department to rotate the one end of connecting first openable baffle on the pipeline inside wall that is close to first annular step, the other end contacts with first annular step, thereby has realized the one-way opening of first openable baffle.
The first openable baffle plate is unidirectionally opened, namely when the first air inlet is blocked, the engine inhales to enable negative pressure to be generated in the air guide pipe, when the negative pressure reaches to overcome the self weight of the first openable baffle plate at the second air inlet, the first openable baffle plate rotates in the air guide pipe, air flows in from the second air inlet, the supply of the air input of the engine is realized, when an automobile drives away from a low-lying water-diffusion road surface, water in the air guide pipe falls back and flows out from the first air inlet, the negative pressure disappears, the first openable baffle plate reversely rotates to a first step by self gravity to realize closing, and the first openable baffle plate cannot further rotate outside the second air inlet due to the arrangement of the first step.
The end of the outlet 104 is formed with a second circumferential step 106, and one end of the second openable baffle 5 is rotatably connected to the inner side wall of the pipeline near the second circumferential step 106, and the other end is in contact with the second circumferential step 106.
Through forming the second annular step at the tip of export, make the one end rotation of second openable baffle connect on the pipeline inside wall that is close to the second annular step, the other end contacts with the second annular step to the one-way opening of second openable baffle has been realized. When the air entering from the first air inlet contains large-particle impurities, the impurities push away the second openable baffle under the action of inertia, leave from the outlet, and when the air does not contain the large-particle impurities, the second openable baffle is automatically closed, so that hot air of the radiator module 8 in front is isolated from entering the air guide pipe.
A groove is formed on the inner side wall of the pipeline close to the first annular step 105, and a first protrusion 401 which is clamped with the groove is formed at one end of the first openable baffle 4;
a groove is formed on the inner side wall of the pipeline near the second annular step 106, and a second protrusion 501 which is clamped with the groove is formed at one end of the second openable baffle 5.
The air guide pipe body 1, the first openable baffle 4 and the second openable baffle 5 are made of plastics.
The air outlet 103 pipeline is assembled with the air inlet 3 pipeline of the air filter together through the sponge 6 in an interference way, and the air outlet 103 pipeline is fixed on the front upper member 7 of the vehicle body through bolts or clamping.
Through adopting the sponge to be in the same place with the air inlet pipeline interference fit of air outlet pipeline and empty filter, avoided the clearance inflow of the air inlet pipeline of air outlet pipeline and empty filter of radiator module 8 in place ahead, simultaneously, fix the air outlet pipeline on the preceding upper member of automobile body through bolt or joint, avoided the vehicle operation in-process, the guide duct takes place to rock.
The sponge in this example is an EPDM foam sponge.
According to the air filter air inlet air guide structure, the first air inlet of the air guide pipe body is prolonged to the position of the opening below the front protective grille, the first air inlet is used as the main air inlet of the air guide pipe, the second air inlet is additionally arranged at the same time and used as the auxiliary air inlet of the air guide pipe, the position of the second air inlet is higher than that of the first air inlet, and the first openable baffle is arranged at the position of the second air inlet. When the automobile runs to a low-lying water-diffusing road surface, the main air inlet of the air guide pipe is submerged by water, the water is sucked into the air guide pipe due to the negative pressure effect generated when the engine sucks air, when the water enters a certain height in the air guide pipe, the negative pressure in the air guide pipe is further increased, when the negative pressure reaches the self weight of the first openable baffle plate capable of overcoming the auxiliary air inlet of the air guide pipe, the first openable baffle plate is opened, and the air required by the engine enters from the auxiliary air inlet of the air guide pipe, so that the air inflow of the engine is supplemented and the requirement of preventing the water from being involved is met. When the automobile runs off the low-lying flood road surface and enters normal running, water in the air guide pipe falls back and flows out from the main air inlet of the air guide pipe, negative pressure disappears, the first openable baffle of the auxiliary air inlet of the air guide pipe is closed under the action of self gravity, the air suction process is recovered to be normal, and fresh and low-temperature air outside the automobile enters from the main air inlet of the air guide pipe through the opening under the front protective grille again.
The mounting manner of air filter air inlet wind-guiding structure in this embodiment is, can open the first protruding joint of baffle in the recess of the annular step in the second air outlet with first, can open the second protruding joint of baffle in the recess of the step of export with the second, then paste the sponge on the lateral wall of the air outlet pipeline of air guide pipe body, in the air inlet pipeline of air filter, finally through the bolt with the air guide pipe body fixed on the preceding upper member of automobile body can, have easy operation's advantage.
The embodiment also provides an engine air inlet system, which comprises the air filter air inlet air guide structure in the embodiment.
According to the air filter air inlet air guide structure and the engine air inlet system, the second air inlet is formed in the air guide pipe body, when an automobile runs to a low-lying water-diffusion road surface, the first air inlet is submerged by water, at the moment, water is sucked into the air guide pipe under the action of negative pressure generated by air suction of the engine, when the water enters the air guide pipe to a certain height, the negative pressure in the air guide pipe rises, when the negative pressure reaches to overcome the self weight of the first openable baffle at the second air inlet, the first openable baffle is opened, air flows in from the second air inlet, and the air inflow of the engine and the requirements of air inflow and anti-interference are met. When the automobile drives away from the low-lying water-diffusing road surface and normally runs, water in the air guide pipe falls back and flows out from the first air inlet, meanwhile, the first openable baffle arranged at the second air inlet is closed by self gravity, the air suction process returns to normal, and fresh and low-temperature air outside the automobile flows in from the first air inlet through the opening of the front protective grille. The problems that when an automobile runs to a low-lying water-flooding road surface, the risk of being easily submerged by water exists, and the engine cannot obtain enough air inflow from the air inlet, so that the engine is flameout and the normal running of the automobile is influenced are solved; secondly, the opening of the first air inlet is set to be an opening towards the front grille, so that fresh low-temperature air outside the automobile smoothly enters the air guide pipe, the required air inflow of the engine is ensured, and meanwhile, the opening of the second air inlet is set to be downward, so that the first openable baffle can be reliably closed by self gravity in the normal operation process of the automobile, and the use of parts is reduced; thirdly, an outlet is arranged on a pipeline of the air guide pipe body from the first air inlet to the air outlet, so that impurities in air entering from the first air inlet push away the second openable baffle under the action of inertia and leave from the outlet, preliminary filtration is realized, large-particle impurities are prevented from entering the air filter, and the service life of the air filter is prolonged; fourthly, a first annular step is formed on the inner side wall of the pipeline of the air guide pipe body, so that the diameter of the inner part of the pipeline is larger than that of the second air inlet, one end of the first openable baffle is rotationally connected to the inner side wall of the pipeline close to the first annular step, and the other end of the first openable baffle is contacted with the first annular step, so that the one-way opening of the first openable baffle is realized; meanwhile, one end of the second openable baffle is rotationally connected to the inner side wall of the pipeline close to the second annular step through forming the second annular step at the end part of the outlet, the other end of the second openable baffle is in contact with the second annular step, so that one-way opening of the second openable baffle is realized, finally, the air outlet pipeline and the air inlet pipeline of the air filter are assembled together in an interference mode through sponge, hot air of the radiator module in front is prevented from flowing in from a gap between the air outlet pipeline and the air inlet pipeline of the air filter, and meanwhile, the air outlet pipeline is fixed on a front upper member of a vehicle body through bolts or clamping, shaking of an air guide pipe in the vehicle running process is avoided, and the air inlet system of an automobile engine has popularization and application values.
The above embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention.
Claims (8)
1. The air guide structure of the air filter air inlet is characterized by comprising an air guide pipe body (1), wherein the air guide pipe body (1) is provided with a first air inlet (101), a second air inlet (102) and an air outlet (103), the position of the second air inlet (102) is higher than that of the first air inlet (101), the position of the air outlet (103) is higher than that of the second air inlet (102), the position of the first air inlet (101) is close to an opening (201) of a front protection grid (2), and the air outlet (103) is used for being connected with an air inlet (3) of the air filter;
the opening of the second air inlet (102) is downward, a first openable baffle (4) is arranged at the second air inlet (102), and when the first air inlet (101) is blocked, the first openable baffle (4) is opened through negative pressure generated by air suction of the engine, so that air flows in from the second air inlet (102), and the air inflow supply and the water-involved prevention requirements are realized;
an outlet (104) is further arranged on a pipeline from the first air inlet (101) to the air guide pipe body (1) of the air outlet (103), a second openable baffle (5) is arranged at the outlet (104), so that impurities in air entering from the first air inlet (101) push away the second openable baffle (5) under the action of inertia and leave from the outlet (104);
the air guide pipe body (1) comprises an air guide pipe with a Z-shaped structure and an air guide pipe with an L-shaped structure, and the side wall of the upper horizontal section of the air guide pipe with the Z-shaped structure is communicated with the side wall of the horizontal section of the air guide pipe with the L-shaped structure through a straight line pipe;
the end part of the lower horizontal section of the Z-shaped air guide pipeline is the first air inlet (101), and the end part of the upper horizontal section is the outlet (104);
the end part of the vertical section of the air guide pipeline with the L-shaped structure is the second air inlet (102), and the end part of the horizontal section is the air outlet (103).
2. An air filter air inlet air guide structure according to claim 1, characterized in that the opening of the first air inlet (101) is directed towards the opening (201) of the front grille (2);
the opening of the second air inlet (102) faces downwards, so that the first openable baffle (4) is closed by self gravity.
3. The air filter air inlet air guide structure according to claim 1, wherein a first annular step (105) is formed on the inner side wall of the pipeline of the air guide pipe body (1) close to the second air inlet (102), so that the diameter of the interior of the pipeline is larger than that of the second air inlet (102);
one end of the first openable baffle (4) is rotatably connected to the inner side wall of the pipeline close to the first annular step (105), and the other end of the first openable baffle is in contact with the first annular step (105).
4. An air filter air inlet air guide structure according to claim 3, wherein a second annular step (106) is formed at the end of the outlet (104), one end of the second openable baffle (5) is rotatably connected to the inner side wall of the pipeline near the second annular step (106), and the other end is in contact with the second annular step (106).
5. The air filter air inlet air guide structure according to claim 4, wherein a groove is formed on the inner side wall of the pipeline close to the first annular step (105), and a first protrusion (401) clamped with the groove is formed at one end of the first openable baffle (4);
a groove is formed on the inner side wall of the pipeline close to the second annular step (106), and a second bulge (501) which is clamped with the groove is formed at one end of the second openable baffle (5).
6. Air filter air inlet air guide structure according to claim 1, characterized in that the air guide pipe body (1), the first openable baffle (4) and the second openable baffle (5) are made of plastic.
7. The air filter air inlet air guide structure according to claim 1, wherein the air outlet (103) pipeline is in interference fit with the air filter air inlet (3) pipeline through a sponge (6), and the air outlet (103) pipeline is fixed on a front upper member (7) of a vehicle body through bolts or clamping.
8. An engine air intake system comprising an air filter air intake air guide structure according to any one of claims 1 to 7.
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| CN114165368A (en) | 2022-03-11 |
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Applicant after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Applicant before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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