CN109958558B - Internal combustion engine intake system structure for vehicle - Google Patents
Internal combustion engine intake system structure for vehicle Download PDFInfo
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- CN109958558B CN109958558B CN201711429579.3A CN201711429579A CN109958558B CN 109958558 B CN109958558 B CN 109958558B CN 201711429579 A CN201711429579 A CN 201711429579A CN 109958558 B CN109958558 B CN 109958558B
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- dust falling
- air
- intake system
- air inlet
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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
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
- F02M35/162—Motorcycles; All-terrain vehicles, e.g. quads, snowmobiles; Small vehicles, e.g. forklifts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to an air inlet system structure of an internal combustion engine for a vehicle, which is provided with a frame unit and an engine unit hung on the frame unit, wherein the engine unit is connected with an air inlet system capable of supplying clean fresh air; the frame unit is provided with a liftable seat cushion, and a storage box is arranged below the frame unit; the engine unit is provided with a power generation part and a transmission part, the power generation part is provided with an air inlet, and the transmission part can drive wheels; the air inlet system at least comprises an air inlet pipe for communicating the air inlet port with the throttle valve body; the air inlet system also comprises a dust falling unit arranged at the front end of the storage box, the dust falling unit is provided with an air suction port, and the air suction port is arranged below the front end of the seat cushion; the air intake system can be made to provide sufficient clean fresh air required for high-speed operation of the engine unit, and the space on the vehicle body can be fully utilized.
Description
Technical Field
The present invention relates to an air intake system structure of an internal combustion engine for a vehicle, and more particularly, to an air intake system structure of an internal combustion engine for a vehicle, which enables the air intake system to provide clean fresh air sufficient for high-speed operation of an engine unit and to sufficiently utilize a space on a vehicle body.
Background
The motorcycle A mixes the clean air and fuel oil introduced from the outside into oil gas, and then the oil gas is inputted into the engine unit 1 to explode and generate power to drive the piston to reciprocate, and the crankshaft drives the transmission part 11 to transmit, so as to achieve the purpose of traveling.
As shown in fig. 1, in order to ensure the cleanliness of the air entering the engine unit 1 from the outside, an air intake system 12 is connected to the engine unit 1, and the air intake system 12 includes an air cleaner 121, a throttle body 122 and an air intake pipe 123.
As shown in fig. 1 and 2, the air cleaner 121 is disposed above the transmission portion 11 on the motorcycle a body side, the air cleaner 121 has a body 1211, a filter 1212 locked on the body 1211, and a cover 1213 locked on a side peripheral surface of the body 1211; the cover 1213 is provided with an air inlet 12131, the main body 1211 is connected to an air pipe 1214 at the air outlet 12111, the air pipe 1214 is connected to the throttle body 122, the other side of the throttle body 122 is connected to an air inlet pipe 123, and the other side of the air inlet pipe 123 is connected to the cylinder part 13 of the engine unit 1; when the engine unit 1 operates to generate negative pressure, the air intake system 12 can suck in the external air, the external air is introduced into the air cleaner 121 for filtering and purifying, the external air enters the air cleaner 121 through the air inlet 12131, is filtered through the filter 1212, and is then conveyed into the throttle body 122 through the air outlet 12111 and the air pipe 1214 for air supply and regulation, and the regulated clean air is then introduced into the cylinder portion 13 of the engine unit 1 through the air inlet pipe 123 for blasting.
As is known, the air filter 121 can suck external air to perform filtering and purifying actions, mainly depends on the negative pressure generated during the operation of the engine unit 1 to generate suction force to suck the external air into the air filter 121, so that when the engine unit 1 is operated at a high speed or with a large horsepower output, the engine unit 1 needs more clean fresh air to explode and output the required kinetic energy, and the volume of the air filter 121 of the conventional air intake system 12 is limited, so that the volume of the air filter 121 cannot be expanded, and thus, sufficient clean fresh air required for the high-speed operation of the engine unit 1 cannot be provided, thereby limiting the operation of the engine unit 1.
Therefore, it is an urgent need to provide an intake system structure of an internal combustion engine for a vehicle to provide clean fresh air sufficient for high-speed operation of an engine unit and further improve the operation effect of the engine unit.
Disclosure of Invention
[ problem ] to solve the problem
The primary objective of the present invention is to provide an intake system structure for an internal combustion engine of a vehicle, which mainly overcomes the disadvantage that the conventional intake system cannot provide enough clean fresh air required for high-speed operation of the engine unit.
[ MEANS FOR SOLVING PROBLEMS ] A method for producing a semiconductor device
Therefore, the first main technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, the vehicle comprises a frame unit, an engine unit hung on the frame unit, the engine unit is connected with an air intake system capable of supplying clean fresh air; the frame unit is provided with a liftable seat cushion, and a storage box is arranged below the frame unit; the engine unit is provided with a power generation part and a transmission part, the power generation part is provided with an air inlet, and the transmission part can drive wheels; the air inlet system at least comprises an air inlet pipe for communicating the air inlet port with the throttle valve body; the air inlet system also comprises a dust falling unit arranged at the front end of the storage box, the dust falling unit is provided with an air suction port, and the air suction port is arranged below the front end of the seat cushion.
Therefore, the second main technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, the air intake system further includes an adapting unit disposed beside one side of the wheel and communicated with the dust falling unit, and the other side of the adapting unit is communicated with the throttle body.
Therefore, the third main technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, wherein a central body cover is arranged below the front end of the seat cushion; the rear part of the central car body cover and the front half part of the dust falling unit are provided with the air suction port of the air inlet system.
Accordingly, a fourth main technical means of the present invention is to provide an intake system structure of an internal combustion engine for a vehicle, wherein the frame unit has a pair of left and right rising frame portions, and the dust falling unit is provided between the pair of left and right rising frame portions.
Therefore, the fifth main technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, wherein the wheel is installed on a rim, the air intake port is located on a side of the dust falling unit away from the storage box, and a lower edge of the dust falling unit is higher than an upper edge of the rim of the wheel.
Therefore, the sixth main technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, wherein the dust falling unit comprises a main body, a cover body covering one side of the main body, and a filter member arranged between the main body and the cover body; after the seat cushion is lifted, the dust falling unit can be exposed, and the dust falling unit can be directly maintained.
Therefore, the seventh main technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, wherein the dust falling unit comprises a main body, a cover body covering one side of the main body, and a filter member arranged between the main body and the cover body; an inserting groove is formed between the body and the cover body, and the inserting groove can be used for inserting the filter piece; the dust falling unit can be exposed after the seat cushion is lifted, and the filtering element can be directly drawn out for maintenance.
Therefore, the eighth main technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, the air intake system having a dust falling unit, a first connecting pipe connecting the dust falling unit and an adapting unit, a second connecting pipe connecting the adapting unit and the throttle body, and an air intake pipe connecting the throttle body and an air intake port of the engine unit; the adjusting unit is arranged above the transmission part of the engine unit; the dust falling unit is located above the air inlet pipe of the air inlet port.
Therefore, a ninth technical means of the present invention is to provide an air intake system structure of an internal combustion engine for a vehicle, wherein the dust falling unit is disposed at one of a front end inside the storage box or a front end outside the storage box.
Accordingly, a tenth technical means of the present invention is to provide an intake system structure of an internal combustion engine for a vehicle, wherein the intake port of the dust falling unit is provided in at least one of the front, left, and right sides of the cover.
[ Effect of the invention ]
The invention can achieve the following effects by the first main technical means: thus, the air intake system can fully utilize the space on the vehicle body.
The invention can achieve the following effects by the second main technical means: therefore, the volume of the whole filtered clean air side of the air inlet system is more than multiple times larger than that of the dust side before filtering, so that the storage capacity of the whole clean fresh air of the air inlet system is improved, the pumping loss during negative pressure suction generated by the operation of the engine unit can be effectively reduced, and the clean fresh air required by the high-speed operation of the engine unit can be provided.
The invention can achieve the following effects by the third main technical means: therefore, the chance of sucking foreign matters into the air suction port can be reduced, and the dust prevention and the water prevention of the air inlet system can be improved.
The invention can achieve the effects by the fourth main technical means: therefore, the dust falling unit can be protected by the ascending frame part to avoid being impacted by foreign objects.
The invention can achieve the following effects by the fifth main technical means: therefore, the height of the air suction port can be effectively increased, and the wading capacity of the vehicle is further improved.
The effect of the invention achieved by the sixth main technical means is as follows: thereby improving the maintainability of the dust falling unit and preventing the dust falling unit from being polluted by the dust sprayed by the wheels.
The effect of the invention achieved by the seventh main technical means is as follows: thereby improving the maintainability of the dust falling unit.
The invention can achieve the following effects by the eighth main technical means: therefore, the space on the vehicle body can be fully utilized, and the dust falling unit can be far away from the engine unit, so that the influence of the high temperature of the engine unit can be avoided.
The effect of the invention achieved by the ninth main technical means is as follows: therefore, the height of the seat cushion does not need to be additionally increased, and the riding comfort of the passengers can be further improved.
The effect of the present invention achieved by the tenth main technical means is: thereby, the air intake system can obtain sufficient air intake quantity.
Drawings
FIG. 1 is a schematic view of an intake system of a conventional internal combustion engine for a vehicle.
Fig. 2 is an exploded view of a dust drop unit of a conventional intake system for an internal combustion engine for a vehicle.
FIG. 3 is a schematic view of the air intake system of the internal combustion engine of the vehicle of the present invention.
Fig. 4 is a plan view of the intake system of the internal combustion engine of the vehicle of the invention.
Fig. 5 is a schematic view of the connection of the intake system and the engine unit of the internal combustion engine of the vehicle of the invention.
Fig. 6 shows another embodiment of the arrangement of the dust drop unit of the intake system of the internal combustion engine of the vehicle of the present invention.
Fig. 7 is a sectional view of a dust drop unit of an intake system of an internal combustion engine of a vehicle of the invention.
Fig. 8 is a sectional view of another embodiment of a dust drop unit of an intake system of an internal combustion engine of a vehicle of the present invention.
FIG. 9 is a schematic view showing the maintenance of the dust drop unit of the intake system of the internal combustion engine of the vehicle according to the present invention.
Detailed Description
In order to make the structure and the achieved effect of the present invention easier to understand, the following description is made with reference to the accompanying drawings:
referring first to fig. 3, 4 and 5, the vehicle of the present invention is illustrated as a motorcycle, but the present invention is not limited thereto. The motorcycle 2 is provided with at least one frame unit 3, the frame unit 3 is provided with a steering mechanism in front of the motorcycle 2, a front wheel (not shown) is arranged below the steering mechanism, the frame unit 3 is provided with a pair of left and right ascending frame parts 31 towards the rear of the motorcycle 2, the pair of left and right side frame parts 311 are arranged towards the rear of the motorcycle body in an extending way on the ascending frame parts 31, side body covers 31a are arranged on the left and right side covers of the ascending frame parts 31 and the side frame parts 311, and a central body cover 31b is arranged on the front end cover of the ascending frame parts 31, so that the rear section of the motorcycle 2 can be covered by the side body covers 31a and the central body cover 31 b; the frame unit 3 is provided with a storage box 4 behind the ascending frame part 31 and between the side frame parts 32, a seat cushion 5 covering the storage box 4 is arranged above the storage box 4, the central body cover 31b is positioned below the front end of the seat cushion 5, and the central body cover 31b can also be formed by extending the side body covers 31a at two sides towards the lower part of the front end of the seat cushion 5; an internal combustion type engine unit 6 is pivoted at the front lower part of the frame unit 3 on the ascending frame part 31, and the engine unit 6 is connected with an air inlet system 7 which can supply clean and fresh air required by the explosion of the engine unit 6; the engine unit 6 has a power generating part 61 and a transmission part 62, the transmission part 62 can drive a wheel (rear wheel) 32 provided at the rear end of the frame unit 3, the wheel 32 is mounted on a rim 321; the air intake system 7 has a dust falling unit 71, a first connecting pipe 72, a regulating unit 73, a second connecting pipe 74, a throttle body 75 and an air intake pipe 76; the air intake system 7 is connected to the air intake port 611 of the power generating portion 61 of the engine unit 6 through an air intake pipe 76, and provides clean air for the combustion chamber (not shown) of the power generating portion 61, and the engine unit 6 can be supplied with oil by a jet oil supply system or a carburetor oil supply system (not shown).
As shown in fig. 3, 4, 5, 6, and 7, the dust falling unit 71 of the air intake system 7 has a main body 711, a cover 712 covering the main body 711 on one side, and a filter 713 disposed between the main body 711 and the cover 712; an air intake port 7121 is provided at one side of the cover 712, the air intake port 7121 is provided at least one of the front, the left or the right of the cover 712, which is illustrated by the right of the vehicle body in the figure, but the number and the arrangement position of the air intake port 7121 are not limited thereby; the air inlet 7121 is used for allowing the outside air to enter the dust falling unit 71; an air outlet 7111 is disposed at one side of the main body 711, so that when the engine unit 6 operates to generate negative pressure, external fresh air can enter the dust falling unit 71 through the air inlet 7121 of the cover 712, and can be filtered through the filter 713 and then output through the air outlet 7111 of the main body 711; as described above, the filter 713 and the main body 711 side may be formed as a post-filter clean air side, and the filter 713 and the cover 712 side may be formed as a pre-filter dust side.
As shown in fig. 8, the main body 711 and the cover 712 are connected to form an insertion groove 71a, that is, the dust falling unit 71 can form an insertion groove 71a, and the insertion groove 71a is used for inserting the filter 713, so that the filter 713 can be conveniently drawn out from between the main body 711 and the cover 712, and the filter 713 can be conveniently cleaned and maintained.
When the insertion groove 71a of the dust falling unit 71 is implemented, the insertion groove 71a may be formed on the body 711 or the cover 712.
As shown in fig. 3, 4, 6 and 9, the dust falling unit 71 is disposed between the pair of left and right ascending frame portions 31 of the frame unit 3, more specifically, the dust falling unit 71 is disposed at the upper end edges of the pair of left and right ascending frame portions 31 of the frame unit 3 and at the front end of the seat cushion 5, further, the dust falling unit 71 is disposed at the front end of the storage box 4, the dust falling unit 71 can be disposed at the front end inside the storage box 4 or at the front end outside the storage box 4, and the lower edge of the dust falling unit 71 is higher than the upper edge of the rim 321 of the wheel 32; the seat cushion 5 is covered on the storage box 4 to shield the upper part of the dust falling unit 71, and the front part of the dust falling unit 71 can be shielded by the central body cover 31b, i.e. the air inlet 7121 of the dust falling unit 71 is positioned at the rear part of the central body cover 31b, and the air inlet 7121 of the dust falling unit 71 is arranged at the side of the dust falling unit 71 departing from the storage box 4, i.e. is positioned on the front half part (cover 712) of the dust falling unit 71 from the side view, so that the air inlet 7121 of the dust falling unit 71 can reduce the suction of outside dust; furthermore, when the dust falling unit 71 is to be cleaned and maintained, the maintenance and maintenance work can be directly performed by only lifting the seat cushion 5 to expose the dust falling unit 71; it should be noted that when the air inlet 7121 of the dust falling unit 71 and the central body cover 31b have enough space, only one air inlet 7121 of the dust falling unit 71 can be provided, and when the space between the air inlet 7121 of the dust falling unit 71 and the central body cover 31b is insufficient, a plurality of air inlets 7121 can be provided in the dust falling unit 71, so as to maintain the air intake amount of the air intake system 7.
As mentioned above, the dust falling unit 71 is higher than the adapting unit 73 from the side view, so that the clean fresh air filtered by the dust falling unit 71 can enter the adapting unit 73 along the direction of its own weight without consuming the suction force of the engine unit 6 to overcome the gravity, thereby reducing the power loss of the engine unit 6; furthermore, the dust falling unit 71 is higher than the transmission part 62 and is located above the power generation part 61, and further, the dust falling unit 71 is located above the air inlet pipe 76 of the air inlet 611, so that the dust falling unit 71 can be further away from the heat source of the power generation part 61. Further, with the above-described structure, the remaining space below the seat cushion 5 can be effectively utilized, so that the arrangement of the storage box 4, the intake system 7 of the engine unit 6, and the power generation unit 61 can be simplified, and the arrangement of the intake system 7 of the engine unit 6 and the power generation unit 61 at the optimum arrangement positions that do not interfere with each other can be avoided, so that the capacity of the intake system 7 required for the performance of the engine unit 6 can be increased, and the air inlet 7121 does not suck accumulated water when the motorcycle 2 passes through a road surface where accumulated water is deep, so that the wading capacity of the motorcycle 2 can be improved, and the height of the seat cushion 5 does not need to be increased additionally, so that the riding comfort of the rider can be improved.
As shown in fig. 3, 4, 5 and 6, the air outlet 7111 of the dust falling unit 71 is connected to the first connecting pipe 72, the first connecting pipe 72 is connected to the air outlet 7111 of the dust falling unit 71, and the other end of the first connecting pipe 72 is connected to the adapting unit 73.
As shown in fig. 3, 4, 5, 6 and 9, the adapting unit 73 is disposed below the upper frame portion 31 side of the frame unit 3, above the transmission portion 62 of the engine unit 6 and beside the wheel 32; the adapting unit 73 has a first box 731 and a second box 732, the first box 731 has an air inlet 7311, one end of the first connecting tube 72 is connected to the air inlet 7311 of the first box 731; the second box 732 has a gas transmission port 7321, the gas transmission port 7321 is externally connected to the second connection pipe 74; the adapting unit 73 forms a box with a certain space by the first box 731 and the second box 732, so that the adapting unit 73 can store the clean fresh air filtered by the dust falling unit 71 by the first connecting pipe 72 for the operation and explosion of the engine unit 6; more specifically, the volume of the filtered clean air side of the air intake system 7 is increased by several times larger than the volume of the dust side before filtering by the arrangement of the adjusting unit 73, so as to increase the storage amount of the clean fresh air of the air intake system 7, and further effectively reduce the pumping loss (i.e. the loss of the air intake passage of the air intake system 7) during the negative pressure air intake generated by the operation of the engine unit 6, so that when the engine unit 6 operates at a high speed, the air intake system 7 can provide sufficient clean fresh air for the high-speed operation of the engine unit 6.
As shown in fig. 3, 4, 5 and 6, one end of the second connecting pipe 74 is connected to the air inlet 7321 of the adapting unit 73, the other end of the second connecting pipe 74 is connected to the throttle body 75, the throttle body 75 is connected to the air inlet 611 of the power generating part 61 of the engine unit 6 by connecting the air inlet pipe 76, and the throttle body 75 controls the flow rate of clean fresh air entering the power generating part 61 of the engine unit 6; accordingly, the negative pressure generated by the operation of the engine unit 6 causes the air inlet 7121 of the air intake system 7 to suck the fresh air from the outside into the air intake system 7, and then the filtered air is filtered by the dust falling unit 71, and then the filtered air is stored and adjusted in the adjusting unit 73 through the first connecting pipe 72, and then the filtered air is input into the throttle valve 75 through the second connecting pipe 74 for flow control, and finally the filtered air is input into the power generating part 61 of the engine unit 6 through the air inlet pipe 76 for explosion.
As shown in fig. 3, 4, 6 and 9, in the embodiment of the present invention, the dust falling unit 71 can be disposed at the front end of the interior of the storage box 4, and is formed by integrally forming all or a part of the dust falling unit 7 with the storage box 4; the dust falling unit 71 is disposed at the front end of the outer side of the storage box 4, and means an arrangement structure in which the dust falling unit 71 and the storage box 4 are two independent members.
As shown in fig. 3, 4, 5, 6 and 7, in the implementation of the present invention, the dust falling unit 71 of the air intake system 7 has a main body 711, a cover 712 covering one side of the main body 711, and a filter 713 disposed between the main body 711 and the cover 712; wherein, the assembly of the main body 711, the cover 712 and the filter 713 can be performed as follows; the filter member 713 is assembled on the cover 712, and then the cover 712 and the filter member 713 are assembled on the main body 711; or the filtering element 713 is assembled on the main body 711 first, and then the cover 712 is assembled on the main body 711 with the filtering element 713; or the filter 713 is placed between the main body 711 and the cover 712, and then the three are locked and assembled at the same time; or, the filtering member 713 is first placed between the main body 711 and the cover 712, and the main body 711 and the cover 712 are locked to sandwich and combine the filtering member 713.
The first effect that the invention can achieve by the above structure lies in: the air intake system 7 comprises a dust falling unit 71 disposed at the front end of the storage box 4, the dust falling unit 71 has an air inlet 7121, and the air inlet 7121 is disposed below the front end of the seat 5; this makes it possible to make the intake system 7 sufficiently use the space on the vehicle body.
The second effect that the invention can achieve by the above structure lies in: by the intake system 7 further comprising an adapting unit 73 disposed beside one side of the wheel 32 and communicated with the dust falling unit 71, the other side of the adapting unit 73 is communicated with the throttle valve 75; therefore, the volume of the whole filtered clean air side of the air inlet system 7 is more than multiple times larger than that of the dust side before filtering, so that the storage capacity of the whole clean fresh air of the air inlet system 7 is improved, the pumping loss during negative pressure suction generated by the operation of the engine unit 6 can be effectively reduced, and the clean fresh air required by the high-speed operation of the engine unit 6 can be provided.
The third effect that the invention can achieve by the above structure lies in: a central body cover 31b is provided below the front end of the seat 5; the air inlet 7121 of the air intake system 7 is arranged at the rear part of the central car body cover 31b and the front half part of the dust falling unit 71; thereby, the chance of foreign matter being sucked into the air inlet 7121 can be reduced, and the dust-proof and water-proof properties of the air intake system 7 can be improved.
The fourth effect that the invention can achieve by the above structure lies in: the frame unit 3 has a pair of left and right rising frame parts 31, and the dust falling unit 71 is arranged between the pair of left and right rising frame parts 31; thus, the dust falling unit 71 is protected from being hit by foreign objects by the protection of the ascending frame part 31.
The fifth effect of the present invention achieved by the above structure is: with the vehicle 32 mounted on the rim 321, the air inlet 7121 is located at a side of the dust falling unit 71 away from the storage box 4, and the lower edge of the dust falling unit 71 is higher than the upper edge of the rim 321 of the vehicle wheel 32; therefore, the height of the air inlet 7121 can be effectively increased, and the wading capacity of the vehicle can be further improved.
The sixth effect that the invention can achieve by the above structure lies in: the dust falling unit 71 has a main body 711, a cover 712 covering one side of the main body 711, and a filter 713 disposed between the main body 711 and the cover 712; after the seat cushion 5 is lifted, the dust falling unit 71 can be exposed, and the dust falling unit 71 can be directly maintained; thereby improving the maintainability of the dust falling unit 71 and preventing the dust falling unit 71 from being contaminated by dust ejected from the wheel 32.
The seventh effect of the present invention achieved by the above structure is: the dust falling unit 71 has a main body 711, a cover 712 covering one side of the main body 711, and a filter 713 disposed between the main body 711 and the cover 712; an insertion groove 71a is formed between the main body 711 and the cover 712, and the insertion groove 71a is used for inserting the filter 713; after the seat cushion 5 is lifted, the dust falling unit 71 can be exposed, and the filter 713 can be directly pulled out for maintenance; thereby improving the maintainability of the dust falling unit 71.
The eighth effect of the present invention achieved by the above structure is: by the air intake system 7 having a dust falling unit 71, a first connecting pipe 72 connecting between the dust falling unit 71 and an adapting unit 73, a second connecting pipe 74 connecting between the adapting unit 73 and the throttle body 75, and an air intake pipe 76 connecting between the throttle body 75 and the air intake port 611 of the engine unit 6; the adapting unit 73 is disposed above the transmission portion 62 of the engine unit 6; the dust falling unit 71 is located above the air inlet pipe 76 of the air inlet port 611; thereby, the space on the vehicle body can be fully utilized, and the dust falling unit 71 can be separated from the engine unit 6, and the influence of the high temperature of the engine unit 6 can be avoided.
The ninth effect that the invention can achieve by the above structure lies in: the dust falling unit 71 is disposed at one of the front end of the storage box 4 or the front end of the storage box 4; thereby, the height of the seat cushion 5 does not need to be increased, and the riding comfort of the rider can be improved.
The tenth effect that the invention can achieve by the above structure lies in: the air inlet 7121 of the dust falling unit 71 is arranged at least on the front or the left or the right of the cover 712; this makes it possible to obtain a sufficient intake air amount in the intake system 7.
In summary, the intake system structure of an internal combustion engine for a vehicle of the present invention has achieved the objective and effect sought, and has improved the effect compared with the conventional one, and it is obvious that there are novel and inventive elements, and the invention patent application is made accordingly.
List of reference numerals
1 Engine Unit
11 drive part
12 air intake system
121 air filter
1211 air outlet of body 12111
1212 filter element
1213 air inlet of cover 12131
1214 gas delivery pipe
122 throttle body
123 air inlet pipe
13 cylinder part
2 motorcycle
3 frame unit
31 rising frame part 311 side frame part
31a side body cover 31b center body cover
32 wheel 321 rim
4 storage box
5 seat cushion
6 Engine Unit
61 Power generating part 611 air inlet port
62 drive part
7 air inlet system
71 dust falling unit
71a inserting groove
711 air outlet of main body 7111
712 cover 7121 air inlet
713 filter element
72 first connecting pipe
73 adapting unit
731 first box body 7311 air inlet
732 second cartridge 7321 transfer port
74 second connecting pipe
75 throttle valve body
76 air inlet pipe
A motorcycle
Claims (9)
1. An air intake system structure of an internal combustion engine for a vehicle, the vehicle is provided with a frame unit, an engine unit hung on the frame unit, and the engine unit is connected with an air intake system capable of supplying clean fresh air; the frame unit is provided with a liftable seat cushion, and a storage box is arranged below the seat cushion; the engine unit is provided with a power generation part and a transmission part, the power generation part is provided with an air inlet, and the transmission part can drive wheels; the air inlet system at least comprises an air inlet pipe for communicating the air inlet port with the throttle valve body; the air intake system is characterized in that the air intake system also comprises a dust falling unit arranged at the front end of the storage box, the dust falling unit is provided with an air suction port, the air suction port is arranged below the front end of the seat cushion, the power generation part is arranged below the seat cushion and behind the front end of the seat cushion, the dust falling unit is arranged above the upper edge of the air inlet pipe connected with the air intake port, the frame unit is provided with a pair of left and right ascending frame parts, the dust falling unit is arranged between the pair of left and right ascending frame parts in a top view, the dust falling unit is arranged above the lower edge far away from the ascending frame parts in a side view, and the upper edge of the dust falling unit is higher than the ascending frame parts.
2. The structure of an intake system of an internal combustion engine for a vehicle according to claim 1, wherein the intake system further comprises an adjusting unit disposed beside one side of the wheel and communicating with the dust falling unit, and the other side of the adjusting unit communicates with the throttle body.
3. The intake system structure of an internal combustion engine for a vehicle according to claim 1, wherein a center body cover is provided under a front end of the seat cushion; the rear part of the central car body cover and the front half part of the dust falling unit are provided with the air suction port of the air inlet system.
4. The structure of an intake system of an internal combustion engine for a vehicle according to claim 1, wherein the wheel is mounted on a rim; the air inlet is located on a side of the dust falling unit away from the storage box, and a lower edge of the dust falling unit is higher than an upper edge of the rim.
5. The internal combustion engine intake system structure for a vehicle according to claim 1, wherein the dust drop unit has a body, a cover body covering one side of the body, a filter member provided between the body and the cover body; after the seat cushion is lifted, the dust falling unit can be exposed, and the dust falling unit can be directly maintained.
6. The internal combustion engine intake system structure for a vehicle according to claim 1, wherein the dust drop unit has a body, a cover body covering one side of the body, a filter member provided between the body and the cover body; the dust falling unit is provided with an inserting groove, and the inserting groove can be used for inserting the filter piece; the dust falling unit can be exposed after the seat cushion is lifted, and the filtering element can be directly drawn out for maintenance.
7. The intake system structure of an internal combustion engine for a vehicle according to claim 1, wherein the intake system has a dust drop unit, a first connection pipe connecting between the dust drop unit and an adaptation unit, a second connection pipe connecting between the adaptation unit and the throttle body, and an intake pipe connecting between the throttle body and the intake port of the power generation portion; the adjusting unit is arranged above the transmission part of the engine unit.
8. The intake system structure of an internal combustion engine for a vehicle according to claim 1, wherein the dust drop unit is provided at one of a front end inside the storage box or a front end outside the storage box.
9. The intake system structure of an internal combustion engine for a vehicle according to claim 5 or 6, wherein the intake port of the dust drop unit is provided in at least one of the front or left or right of the cover.
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| CN201711429579.3A CN109958558B (en) | 2017-12-26 | 2017-12-26 | Internal combustion engine intake system structure for vehicle |
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| CN201711429579.3A CN109958558B (en) | 2017-12-26 | 2017-12-26 | Internal combustion engine intake system structure for vehicle |
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| CN109958558B true CN109958558B (en) | 2021-06-15 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269692A (en) * | 2007-03-23 | 2008-09-24 | 雅马哈发动机株式会社 | Motorcycle |
| EP2527179A1 (en) * | 2011-05-27 | 2012-11-28 | Yamaha Hatsudoki Kabushiki Kaisha | Scooter type motorcycle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09273428A (en) * | 1996-04-04 | 1997-10-21 | Yamaha Motor Co Ltd | Vehicle provided with supercharging engine |
| JP4247857B2 (en) * | 1999-07-05 | 2009-04-02 | 本田技研工業株式会社 | Silence structure of the intake system in motorcycles |
| JP3836665B2 (en) * | 2000-09-06 | 2006-10-25 | 本田技研工業株式会社 | Motorcycle |
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2017
- 2017-12-26 CN CN201711429579.3A patent/CN109958558B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269692A (en) * | 2007-03-23 | 2008-09-24 | 雅马哈发动机株式会社 | Motorcycle |
| EP2527179A1 (en) * | 2011-05-27 | 2012-11-28 | Yamaha Hatsudoki Kabushiki Kaisha | Scooter type motorcycle |
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| CN109958558A (en) | 2019-07-02 |
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