CN222228709U - Air inlet pipe, engine air inlet system and vehicle - Google Patents
Air inlet pipe, engine air inlet system and vehicle Download PDFInfo
- Publication number
- CN222228709U CN222228709U CN202420960260.2U CN202420960260U CN222228709U CN 222228709 U CN222228709 U CN 222228709U CN 202420960260 U CN202420960260 U CN 202420960260U CN 222228709 U CN222228709 U CN 222228709U
- Authority
- CN
- China
- Prior art keywords
- pipe
- sound
- shell
- tube
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Exhaust Silencers (AREA)
Abstract
本公开涉及一种进气管、发动机进气系统以及车辆，该进气管包括第一管壳、第二管壳及第三管壳；第一管壳和第二管壳连接并围合形成空腔，空腔包括彼此分隔的第一消声腔和进气通道，第一管壳和第二管壳中的一者上设置有入口和出口，入口和出口均与进气通道连通。第三管壳位于进气通道内且第三管壳上连通有第一消声管，第一消声管位于第一消声腔内且与第一消声腔连通，以对进入至进气管内的噪声进行消除，且通过第一管壳和第二管壳共同围合形成与第一消声管连通的第一消声腔，从而可以避免额外设置隔板分隔空腔后再与第三管壳共同形成消声腔，因此可以简化进气管的内部结构。
The present disclosure relates to an intake pipe, an engine intake system and a vehicle, wherein the intake pipe comprises a first tube shell, a second tube shell and a third tube shell; the first tube shell and the second tube shell are connected and enclosed to form a cavity, the cavity comprises a first muffler cavity and an intake passage separated from each other, an inlet and an outlet are provided on one of the first tube shell and the second tube shell, and both the inlet and the outlet are connected to the intake passage. The third tube shell is located in the intake passage and is connected to a first muffler pipe, the first muffler pipe is located in the first muffler cavity and is connected to the first muffler cavity to eliminate the noise entering the intake pipe, and the first muffler cavity connected to the first muffler pipe is formed by the first tube shell and the second tube shell together enclosed, thereby avoiding the need to additionally set a partition to separate the cavity and then form a muffler cavity together with the third tube shell, thereby simplifying the internal structure of the intake pipe.
Description
Technical Field
The disclosure relates to the technical field of engines, and in particular relates to an air inlet pipe, an engine air inlet system and a vehicle.
Background
The air inlet pipe is an important component part of an air inlet system of the engine, and plays a role in providing clean air for the engine, and meanwhile, noise emitted by the engine can be transmitted out through the air inlet pipe.
The outside at the intake pipe is connected a plurality of independent silencer unit to when silencing the noise that the engine sent, lead to the silencer unit to occupy the inner space of engine compartment easily, in order to solve this problem, the mode of integrating the silencer unit in the intake pipe and silencing has been proposed at present. Specifically, the air inlet pipe may include two housings that enclose a cavity for air inlet and air outlet. Then set up the baffle in the cavity to separate the cavity and form a plurality of subchambers, then set up the pipeline that is integrated with the noise elimination subassembly in each subchamber and enclose jointly with each subchamber and form the noise elimination chamber, so can lead to the inner structure of whole intake pipe complicated.
Disclosure of utility model
In order to solve the technical problem, the present disclosure provides an intake pipe, an engine intake system and a vehicle.
In a first aspect, the present disclosure provides an air inlet pipe comprising a first pipe shell, a second pipe shell, and a third pipe shell;
The first pipe shell and the second pipe shell are connected and enclosed to form a cavity, the cavity comprises a first silencing cavity and an air inlet channel, which are separated from each other, an inlet and an outlet are formed in one of the first pipe shell and the second pipe shell, the inlet and the outlet are communicated with the air inlet channel, the third pipe shell is located in the air inlet channel, a first silencing pipe is communicated with the third pipe shell, and the first silencing pipe is located in the first silencing cavity and is communicated with the first silencing cavity.
In some embodiments, the number of the first silencing tubes is at least two, the at least two first silencing tubes are respectively arranged on two opposite sides of the third tube shell along the width direction of the third tube shell, the number of the first silencing cavities is at least two, and the first silencing cavities are in one-to-one communication with the first silencing tubes.
In some embodiments, the first sound attenuating tube is a helmholtz sound attenuating tube, and/or the first sound attenuating tube is integrally formed with the third shell.
In some embodiments, the first sound attenuating tube is disposed on the third shell and is disposed away from the inlet.
In some embodiments, a fourth tube housing is further disposed within the air intake passage, the fourth tube housing being located between the first tube housing and the third tube housing, the fourth tube housing having a first bellows tube disposed thereon in communication with the air intake passage.
In some embodiments, the number of the first wave length tubes is at least two, and the at least two first wave length tubes are sequentially arranged along the length direction of the air inlet pipe;
The height of the first wavelength tube gradually increases along the direction from the inlet to the outlet.
In some embodiments, a second bellows tube communicating with the air intake passage is formed between a side surface of the fourth tube housing and a side wall of the first tube housing, wherein the first and second bellows tubes are sequentially arranged in a direction from the inlet to the outlet.
In some embodiments, two second silencing cavities are formed by enclosing the fourth tube shell and the first tube shell, and the two second silencing cavities are sequentially separated along the length direction of the air inlet tube.
In some embodiments, the fourth tube shell is provided with a sound-absorbing hole structure and a second sound-absorbing tube, the second sound-absorbing tube and the sound-absorbing hole structure are both communicated with the air inlet channel, the second sound-absorbing tube is positioned downstream of the sound-absorbing hole structure, the first wavelength tube is positioned between the second wavelength tube and the second sound-absorbing tube, the sound-absorbing hole structure is communicated with one of the two second sound-absorbing cavities, and the second sound-absorbing tube is positioned in the other of the two second sound-absorbing cavities and is communicated with the other of the two second sound-absorbing cavities.
In a second aspect, the present disclosure provides an engine air intake system including an air intake pipe.
In a third aspect, the present disclosure provides a vehicle comprising an air intake pipe or comprising an engine air intake system.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
The present disclosure provides an air intake pipe, an engine air intake system, and a vehicle, the air intake pipe including a first pipe shell, a second pipe shell, and a third pipe shell, the first pipe shell and the second pipe shell being connected and enclosed to form a cavity, the cavity including a first sound-deadening chamber and an air intake passage that are separated from each other, one of the first pipe shell and the second pipe shell being provided with an inlet and an outlet, the inlet and the outlet both communicating with the air intake passage. The third tube shell is located the air inlet channel and communicates on the third tube shell and has first sound eliminating pipe, and first sound eliminating pipe is located first sound eliminating cavity and communicates with first sound eliminating cavity to weaken or eliminate the noise that gets into to the intake pipe in, and enclose jointly through first tube shell and second tube shell and form the cavity, this cavity include air inlet channel and with air inlet channel divided first sound eliminating cavity, thereby can avoid additionally setting up the baffle and separate the cavity after forming the sound eliminating cavity jointly with the third tube shell again, consequently can simplify the inner structure of intake pipe.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of a general assembly structure of an air intake pipe according to an embodiment of the present disclosure;
FIG. 2 is an exploded view of an air intake pipe according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating the cooperation of a first tube shell, a second tube shell and a third tube shell of an air inlet pipe according to an embodiment of the disclosure;
FIG. 4 is a schematic diagram of the fitting of a first cartridge and a fourth cartridge of an air inlet pipe according to an embodiment of the disclosure;
fig. 5 is a schematic structural view of a fourth tube housing of the air intake pipe according to the embodiment of the disclosure.
Reference numerals:
1. the device comprises a first tube shell, 11, an outlet, 12, an inlet, 13, an air inlet channel, 2, a second tube shell, 3, a third tube shell, 31, a first sound-eliminating tube, 4, a first sound-eliminating cavity, 5, a second wave tube, 6, a fourth tube shell, 61, a sound-eliminating hole structure, 62, a second sound-eliminating tube, 7, a first wave tube, 8 and a second sound-eliminating cavity.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein, and it is apparent that the embodiments in the specification are only some, rather than all, of the embodiments of the present disclosure.
Example 1
Referring to fig. 1 and 2, the present embodiment provides an air intake pipe including a first tube 1, a second tube 2, and a third tube 3.
The first and second housings 1 and 2 are connected and enclosed to form a cavity including the first sound-damping chamber 4 and the air intake passage 13 separated from each other, and one of the first and second housings 1 and 2 is provided with an inlet 12 and an outlet 11, both the inlet 12 and the outlet 11 being communicated with the air intake passage 13.
The third tube shell 3 is located in the air inlet channel 13, and the first silencing tube 31 is communicated with the third tube shell 3, and the first silencing tube 31 is located in the first silencing cavity 4 and is communicated with the first silencing cavity 4, so that the inlet 12, the outlet 11, the air inlet channel 13, the first silencing tube 31 and the first silencing cavity 4 are communicated to form a silencing path through which noise and sound waves can circulate.
The first tube shell 1 and the second tube shell 2 can be connected in a clamping way or connected through a fastener.
It should be noted that, in addition to providing the inlet 12 into which the noise sound wave enters in one of the first tube housing 1 and the second tube housing 2, an outlet 11 may be provided in one of the first tube housing 1 and the second tube housing 2, and the outlet 11 may communicate with the inlet 12 through an air intake passage 13, and the outlet 11 may be regarded as a discharge port of the noise sound wave, that is, the noise sound wave that is not eliminated may be discharged out of the air intake pipe through the air intake passage and the outlet 11.
Further, since the intake pipe in the present embodiment is used for engine intake, the outlet 11 may be regarded as an intake port of intake air, and the inlet 12 may be regarded as an outlet port of intake air. That is, when the air intake pipe is used for air intake to the engine, air flow is conveyed into the engine through the inlet 12 after entering into the air intake pipe through the outlet 11, noise sound waves generated by the engine enter into the air intake pipe through the inlet 12 to be muffled, and part of sound waves which are not completely eliminated can be discharged out of the air intake pipe through the outlet 11, namely, the inlet and outlet directions of the noise sound waves are just opposite to the air flow directions of air conveyed into the engine.
In particular, referring to the left-right direction of the drawing sheet shown in fig. 1, the inlet 12 and the outlet 11 may be disposed on the first tube housing 1, and at this time, the outlet 11 may be disposed at the left end of the first tube housing 1, the inlet 12 may be disposed at the right end of the first tube housing 1, and the external air flow may enter the air inlet pipe through the outlet 11 and flow along the air inlet channel 13, and then enter the engine through the inlet 12, so as to implement the air intake operation of the engine. Meanwhile, the inlet 12 may be understood as an inlet of noise generated by the engine, and the outlet 11 may be understood as an outlet, i.e., noise generated by the engine is discharged through the outlet 11 after entering the intake pipe through the inlet 12.
In order to perform noise reduction and noise reduction on noise generated by an engine, a cavity is formed by enclosing between the second tube shell 2 and the first tube shell 1 in the embodiment, the cavity comprises a first noise reduction cavity 4 separated from each other, a first noise reduction tube 31 is arranged in the first noise reduction cavity 4, one end of the first noise reduction tube 31 is communicated with the first noise reduction cavity 4, the other end of the first noise reduction tube 31 is communicated with a third tube shell 3 positioned in the air inlet channel 13, namely, the other end of the first noise reduction tube 31 is communicated with the air inlet channel 13, so that the inlet 12, the outlet 11, the air inlet channel 13, the first noise reduction tube 31 and the first noise reduction cavity 4 are communicated to form a noise reduction path through which noise sound waves can circulate. The first sound-damping tube 31 may be illustratively a helmholtz sound-damping tube, in which case the first sound-damping chamber 4 and the first sound-damping tube 31 together form a helmholtz muffler.
The specific sound elimination principle of the Helmholtz silencer is that when sound waves of noise move into the first sound elimination cavity 4 in the first sound elimination pipe 31, one part of sound waves are reflected back, the other part of sound waves are divided into two branches, one branch enters the first sound elimination cavity 4 or pushes air in the first sound elimination cavity 4 to move, and the other branch continues to propagate in the first sound elimination pipe 31 to form transmission waves, so that the purposes of noise elimination and noise reduction are achieved.
To sum up, the air intake pipe that this embodiment provided includes first tube shell 1, second tube shell 2 and third tube shell 3 through setting up the air intake pipe, and make enclose between second tube shell 2 and the first tube shell 1 and close and form the cavity, the cavity includes first sound eliminating cavity 4 and air inlet channel 13 of mutual partition, third tube shell 3 is located air inlet channel 13 and communicates on the third tube shell 3 has first sound eliminating pipe 31, first sound eliminating pipe 31 is located first sound eliminating cavity 4 and communicates with first sound eliminating cavity 4, thereby can attenuate or eliminate the noise that gets into in the air intake pipe, thereby can avoid additionally setting up the silencer unit in the outside of air intake pipe and making an uproar the problem that the occupation engine compartment's interior space that leads to appears, consequently, be favorable to realizing the rational utilization of engine compartment's interior space, and can avoid additionally setting up the silencer unit and make an uproar the problem that leads to that the structure is complicated and the cost is higher of making an uproar that falls. Meanwhile, the first tube shell 1 and the second tube shell 2 are jointly enclosed to form a cavity, and the cavity comprises the first silencing cavity 4 and the air inlet channel 13 which are separated from each other, so that the situation that the first tube shell 1 and the second tube shell are additionally provided with a partition plate to separate the cavity and then are jointly enclosed with the third tube shell to form the silencing cavity can be avoided, and therefore the internal structure of the air inlet pipe can be simplified.
Referring to fig. 1 to 3, in some embodiments, there are at least two first sound-reducing pipes 31, and at least two first sound-reducing pipes 31 are disposed on opposite sides of the third casing 3 along the width direction of the third casing 3, and at least two first sound-reducing chambers 4 are disposed, and the first sound-reducing chambers 4 are in one-to-one communication with the first sound-reducing pipes 31.
In a specific implementation, the width direction of the third tube housing 3 may refer to the left-right direction shown in fig. 3, and the width direction of the third tube housing 3 may be a direction perpendicular to the direction from the inlet 12 to the outlet 11. At least two first silencing tubes 31 are respectively arranged at two opposite sides of the third tube shell 3 along the width direction of the third tube shell 3, namely at least two first silencing tubes 31 are respectively arranged at two opposite sides of the third tube shell 3 along the left-right direction shown in fig. 3, at this time, first silencing cavities 4 can be arranged at two sides of the third tube shell 3 along the left-right direction at intervals, the first silencing cavities 4 can be separated from an air inlet channel 13 formed by encircling between the first tube shell 1 and the second tube shell 2, and one first silencing tube 31 can be arranged in each first silencing cavity 4, so that each first silencing cavity 4 and one first silencing tube 31 form a complete Helmholtz silencer, and the silencing effect is further improved through at least two Helmholtz silencers.
Illustratively, the number of the first silencing chambers 4 may be two as shown in fig. 3, and the number of the first silencing tubes 31 may be correspondingly two. Alternatively, in other implementations, three or more first sound-damping chambers 4 may be provided, and three or more first sound-damping pipes 31 may be provided. The number of the first sound-deadening chambers 4 and the first sound-deadening tubes 31 may be set based on actual needs, and the embodiment is not particularly limited.
In some embodiments, the first muffler 31 and the third pipe shell 3 may be integrally formed, so that manufacturing processes may be saved and the overall structural strength of the third pipe shell 3 may be improved. Alternatively, in other embodiments, the first muffler pipe 31 may be separately formed with the third pipe shell 3 and then bonded or clamped together.
For example, when the first sound-reducing pipes 31 are in one-to-one communication with the first sound-reducing cavities 4, the first sound-reducing pipes 31 and the first sound-reducing cavities 4 may be correspondingly arranged and communicated, that is, the projection of the first sound-reducing pipes 31 on the first sound-reducing cavities 4 is located in the area range of the first sound-reducing cavities 4, so that the one-to-one communication between the first sound-reducing pipes 31 and the first sound-reducing cavities 4 is facilitated.
Referring to fig. 2 and 5, in some embodiments, a fourth tube housing 6 is further disposed in the air intake passage, the fourth tube housing 6 is located between the first tube housing 1 and the third tube housing 3, and a first bellows tube 7 communicating with the air intake passage is disposed on the fourth tube housing 6.
In particular, the first bellows tube 7 may be considered as a closed tube communicating with the intake passage. The sound-damping principle is that after the sound wave of noise enters the first wave tube 7 from the air inlet channel, the sound wave is reflected back to the air inlet channel by the closed end of the first wave tube 7, and in the process, the sound wave with certain frequency and the sound wave with the same frequency in the air inlet channel are mutually counteracted due to opposite phase, so that the purpose of sound damping is achieved.
The first wavelength tube 7 may be a 1/4 wavelength tube, and the 1/4 wavelength tube is mainly used for eliminating noise in a middle-low frequency band. For example, a 1/4 wavelength tube mainly eliminates noise at frequencies of 500Hz-2000 Hz.
Referring to fig. 5, in some embodiments, at least two first wavelength tubes 7 are provided, and the length directions of the air inlet pipes of the at least two first wavelength tubes 7 are sequentially set, so that the silencing effect can be achieved by the at least two first wavelength tubes 7 together, so as to further improve the silencing and noise reducing effects.
In particular, two first wavelength tubes 7 may be provided, and the two first wavelength tubes 7 may be sequentially separated from each other in the left-right direction shown in fig. 3. Or the first wavelength tubes 7 may be specifically provided in 5 as shown in fig. 5, and the 5 first wavelength tubes 7 are sequentially arranged apart in the left-right direction as shown in fig. 3.
Referring to fig. 1, in some embodiments, the height of the first waveguide tube 7 may be gradually increased along the direction from the inlet 12 to the outlet 11, so that the configuration not only can better adapt to the outline shape of the whole air inlet pipe, but also can absorb and mute noise sound waves sequentially through the first waveguide tube 7 with larger height in the process that the noise sound waves flow from the inlet 12 to the outlet 11, and further absorb and mute noise sound waves through the first waveguide tube 7 with smaller height, so that the noise cancellation effect can be effectively enhanced.
Referring to fig. 4, in some embodiments, a second wave tube 5 communicating with an air intake channel 13 is formed between a side surface of the fourth tube shell 6 and a side wall of the first tube shell 1, where the first wave tube 7 and the second wave tube 5 are sequentially arranged along a direction from the inlet 12 to the outlet 11, so that in a process of flowing noise sound waves from the inlet 12 to the outlet 11, the noise sound waves sequentially pass through the first wave tube 7 to absorb and eliminate noise, and then pass through the second wave tube 5 to absorb and eliminate noise sound waves further, so that a noise elimination effect can be effectively enhanced.
That is, referring to the left-right direction of the drawing sheet shown in fig. 4, the left side surface of the fourth tube housing 6 and the side wall of the first tube housing 1 may be formed together as one second wave tube 5.
The second wavelength tube 5 may be a 1/4 wavelength tube, and the 1/4 wavelength tube is mainly used for eliminating noise in the middle and low frequency bands. For example, a 1/4 wavelength tube mainly eliminates noise at frequencies of 500Hz-2000 Hz.
Referring to fig. 4, in some embodiments, two second sound-reducing cavities 8 are formed by enclosing the fourth pipe shell 6 and the first pipe shell 1, and the length directions of the air inlet pipes of the two second sound-reducing cavities 8 are sequentially separated.
The second sound-absorbing pipe 62 and the sound-absorbing hole structure 61 are both communicated with the air inlet channel 13, the second sound-absorbing pipe 62 is positioned downstream of the sound-absorbing hole structure 61, the first wave-absorbing pipe 7 is positioned between the second wave-absorbing pipe 5 and the second sound-absorbing pipe 62, the sound-absorbing hole structure 61 is communicated with one of the two second sound-absorbing cavities 8, and the second sound-absorbing pipe 62 is positioned in the other of the two second sound-absorbing cavities 8 and communicated with the other of the two second sound-absorbing cavities 8.
In a specific implementation, referring to the left-right direction of the drawing sheet shown in fig. 4, two second sound-damping chambers 8 are formed by enclosing the fourth tube housing 6 and the first tube housing 1.
Specifically, the sound-deadening hole structure 61 on the fourth pipe casing 6 communicates with the second sound-deadening chamber 8 on the right side to form a porous sound-deadening, and the second sound-deadening pipe 62 on the fourth pipe casing 6 communicates with the second sound-deadening chamber 8 on the left side to form a helmz sound-deadening. The structure and principle of the helmholtz silencer can be described with reference to the above principles and structure of the helmholtz silencer, and will not be described here again.
The purpose of providing the sound damping hole structure 61 to communicate with the second sound damping chamber 8 on the right side is to make the porous sound damper constituted by the sound damping hole structure 61 closer to the noise source so as to cancel the noise in the middle-high frequency range of the noise.
Illustratively, the sound-deadening hole structure 61 may be constituted by a plurality of sound-deadening holes, and the aperture and porosity of the sound-deadening holes may be set according to actual needs so as to be suitable for eliminating noises of different frequencies.
It should be noted that, the sound-deadening hole structure 61 consumes energy according to the continuous reflection and interference of the sound wave during the propagation, and mainly eliminates the middle and high frequency noise in the noise, such as the noise with the frequency between 500Hz and 4000 Hz. The first sound-reducing pipe 31 mainly uses the reflected impedance of the sound wave to realize noise reduction, which mainly eliminates low-frequency noise among noises, such as noise having a frequency of 500Hz or less.
The sound-deadening hole structure 61 may be specifically configured by a plurality of sound-deadening hole arrays, and the aperture and the porosity of the sound-deadening holes may be set according to actual needs, so as to be suitable for eliminating noises of different frequencies.
In some embodiments, referring to fig. 1, the sound-deadening hole structure 61, the second sound-deadening pipe 62 and the first wave-length pipe 7 are sequentially arranged along the direction from the inlet 12 to the outlet 11, so that in the process of flowing the sound wave air flow from the inlet 12 to the outlet 11, the middle-high frequency noise in the noise is firstly deadened through the sound-deadening hole structure 61, then the low-frequency noise in the noise is deadened through the second sound-deadening pipe 62, and finally the middle-frequency noise in the sound wave is deadened through the first wave-length pipe 7, so that the full-band sequential cancellation operation of the noise is realized, and the sound-deadening and noise-reducing effects are better.
Example two
Referring to fig. 1 to 5, the present embodiment provides an engine air intake system including an intake pipe.
The specific structure and implementation principle of the air inlet pipe in this embodiment are the same as those of the air inlet pipe provided in the first embodiment, and the same or similar technical effects can be brought, which are not described in detail herein, and the description of the first embodiment can be referred to specifically.
When the engine is specifically implemented, the air inlet pipe can be communicated with a supercharger of the engine, or the air inlet pipe can also be communicated with a throttle valve of the engine, so that external air can enter the engine through the air inlet pipe, and noise generated by the operation of the engine can enter the air inlet pipe to be subjected to noise reduction.
Example III
Referring to fig. 1 to 5, the present embodiment also provides a vehicle including an intake pipe or including an engine intake system.
The specific structure and implementation principle of the air inlet pipe in this embodiment are the same as those of the air inlet pipe provided in the first embodiment, and the same or similar technical effects can be brought, which are not described in detail herein, and the description of the first embodiment can be referred to specifically.
The specific structure and implementation principle of the engine air intake system in this embodiment are the same as those of the engine air intake system provided in the second embodiment, and the same or similar technical effects can be brought, which are not described in detail herein, and the description of the second embodiment may be referred to specifically.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An air inlet pipe is characterized by comprising a first pipe shell, a second pipe shell and a third pipe shell;
the first pipe shell and the second pipe shell are connected and enclosed to form a cavity, the cavity comprises a first sound-absorbing cavity and an air inlet channel which are separated from each other, one of the first pipe shell and the second pipe shell is provided with an inlet and an outlet, and the inlet and the outlet are communicated with the air inlet channel;
the third pipe shell is positioned in the air inlet channel, a first silencing pipe is communicated with the third pipe shell, and the first silencing pipe is positioned in the first silencing cavity and communicated with the first silencing cavity.
2. The air inlet pipe according to claim 1, wherein the number of the first silencing pipes is at least two, the at least two first silencing pipes are respectively arranged on two opposite sides of the third pipe shell along the width direction of the third pipe shell, the number of the first silencing cavities is at least two, and the first silencing cavities are in one-to-one communication with the first silencing pipes.
3. The air intake pipe of claim 1, wherein the first muffler pipe is disposed on the third shell and is disposed away from the inlet.
4. A gas inlet pipe according to any one of claims 1 to 3, wherein a fourth pipe shell is further provided in the gas inlet passage, and the fourth pipe shell is located between the first pipe shell and the third pipe shell, and a first wave tube communicating with the gas inlet passage is provided on the fourth pipe shell.
5. The air inlet pipe according to claim 4, wherein the number of the first wave length pipes is at least two, and the at least two first wave length pipes are sequentially arranged along the length direction of the air inlet pipe;
The height of the first wavelength tube gradually increases along the direction from the inlet to the outlet.
6. The air intake duct of claim 4, wherein a second elongated tube communicating with the air intake passage is formed between a side surface of the fourth tube housing and a side wall of the first tube housing;
Wherein the first and second wavelength tubes are sequentially arranged along the direction from the inlet to the outlet.
7. The air inlet pipe according to claim 6, wherein two second silencing cavities are formed by encircling the fourth pipe shell and the first pipe shell, and the two second silencing cavities are sequentially separated along the direction of the air inlet pipe.
8. The intake pipe of claim 7, wherein the fourth shell is provided with a sound-deadening hole structure and a second sound-deadening pipe, both of which communicate with the intake passage, the second sound-deadening pipe being located downstream of the sound-deadening hole structure, the first wavelength pipe being located between the second wavelength pipe and the second sound-deadening pipe, the sound-deadening hole structure communicating with one of the two second sound-deadening chambers, the second sound-deadening pipe being located within the other of the two second sound-deadening chambers and communicating with the other of the two second sound-deadening chambers.
9. An engine air intake system comprising an air intake pipe according to any one of claims 1 to 8.
10. A vehicle comprising an intake pipe according to any one of claims 1 to 8 or comprising an engine intake system according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420960260.2U CN222228709U (en) | 2024-05-06 | 2024-05-06 | Air inlet pipe, engine air inlet system and vehicle |
| PCT/CN2025/092206 WO2025232662A1 (en) | 2024-05-06 | 2025-04-29 | Air intake pipe, engine air intake system, and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420960260.2U CN222228709U (en) | 2024-05-06 | 2024-05-06 | Air inlet pipe, engine air inlet system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222228709U true CN222228709U (en) | 2024-12-24 |
Family
ID=93906528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420960260.2U Active CN222228709U (en) | 2024-05-06 | 2024-05-06 | Air inlet pipe, engine air inlet system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222228709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025232662A1 (en) * | 2024-05-06 | 2025-11-13 | 上海理想汽车科技有限公司 | Air intake pipe, engine air intake system, and vehicle |
-
2024
- 2024-05-06 CN CN202420960260.2U patent/CN222228709U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025232662A1 (en) * | 2024-05-06 | 2025-11-13 | 上海理想汽车科技有限公司 | Air intake pipe, engine air intake system, and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7942239B2 (en) | Exhaust muffler | |
| US4192403A (en) | Muffler for internal combustion engines | |
| US8356690B2 (en) | Exhaust apparatus for an internal combustion engine | |
| JPH08114117A (en) | Vehicle exhaust system | |
| CN209724450U (en) | A kind of multitube labyrinth silencer | |
| CN222228709U (en) | Air inlet pipe, engine air inlet system and vehicle | |
| CN212724716U (en) | Silencing device and silence pipeline that has it | |
| CN222228708U (en) | Air inlet pipe, engine air inlet system and vehicle | |
| CN104594977A (en) | Silencer for mini-truck internal combustion engine | |
| CN201377347Y (en) | Multi-cavity labyrinth dissipation type silencer | |
| CN213065077U (en) | Labyrinth resonator and pipeline noise elimination device based on same | |
| CN110359981B (en) | Muffler, internal combustion engine vehicle using the same, and method of controlling noise elimination thereof | |
| CN109630250B (en) | Muffler, exhaust equipment and exhaust system with dynamic sound | |
| JPH0637514U (en) | Silencer | |
| JP3449460B2 (en) | Vehicle muffler | |
| CN210977634U (en) | Exhaust silencer with double-air-outlet multi-pipe labyrinth structure | |
| CN116123381A (en) | A Broadband Acoustic Structure Based on Curled Cavities | |
| JPH08185189A (en) | Silencing system of active noise control system | |
| KR20180117789A (en) | Muffler for vehicle | |
| CN115478965B (en) | Air filter and vehicle | |
| CN114999431A (en) | Mufflers, muffler assemblies and refrigerators | |
| CN111928050A (en) | Labyrinth type resonator and pipe muffler device based thereon | |
| CN215595761U (en) | Silencer with improved structure | |
| CN113623090A (en) | Air inlet pipeline and motor vehicle | |
| CN218542376U (en) | Automobile muffler assembly with winding drum structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |