CN217152149U - Silencer, air intake system and automobile engine - Google Patents

Abstract

The utility model provides a silencer, air intake system and automobile engine, wherein the silencer includes the casing subassembly, inner core and joint Assembly, the casing subassembly includes first casing and second casing, first casing closes with second casing lid and forms the chamber of ventilating, the chamber of ventilating has air inlet and gas outlet, the inner core sets up in the chamber of ventilating, joint Assembly sets up on the casing subassembly, joint Assembly and the chamber intercommunication of ventilating, the inner core includes the baffle subassembly, the baffle subassembly includes a plurality of baffles, and the baffle sets up with the joint Assembly relatively, thereby can reduce the production manufacturing cost, the inner core can play buffering and separation effect to the air current of joint Assembly simultaneously, thereby avoid producing the disturbance to the air current of main road in the chamber of ventilating, the noise reduction of silencer has been guaranteed.

Description

Silencer, air intake system and automobile engine

Technical Field

The utility model relates to an engine technical field, in particular to silencer, air intake system and automobile engine.

Background

With the higher and higher requirements of users on the driving experience of automobiles, the noise in the automobiles is more and more emphasized, and the noise of the air intake system of the engine is one of the important sources of the noise in the automobiles, so the air intake system needs to have the noise reduction function.

In the prior art, a silencer is usually added in an air intake system of an engine to reduce noise, the silencer is generally arranged in a pipeline of a clean pipe of the air intake system, but due to the improvement of the emission requirement of an automobile, exhaust gas in a crankcase and gas desorbed from a fuel carbon tank need to enter the air intake system, in addition, in the engine with a turbocharging system, a pressure release valve also needs to release high-pressure gas into the air intake system, therefore, a plurality of joints need to be arranged on the clean pipe at the same time, and each joint needs to be separately arranged from the part where the silencer is located.

However, the existing muffler structure and arrangement method increase the manufacturing cost, and the air flow of each joint affects the muffling performance of the muffler.

SUMMERY OF THE UTILITY MODEL

The utility model provides a silencer, air intake system and automobile engine can guarantee the silencer performance, reduces the engine noise of admitting air, simultaneously reduce cost.

In a first aspect, the present invention provides a muffler, which comprises a housing assembly, an inner core and a joint assembly, wherein the housing assembly comprises a first housing and a second housing, the first housing and the second housing cover form a ventilation chamber, and the ventilation chamber has an air inlet and an air outlet.

The inner core is arranged in the ventilation cavity, the joint assembly is arranged on the shell assembly and communicated with the ventilation cavity, the inner core comprises a partition plate assembly, the partition plate assembly comprises a plurality of partition plates, and the partition plates and the joint assembly are arranged oppositely.

In the silencer that this application provided, the air current can get into and have the gas outlet to flow out by the air inlet in the chamber of ventilating, and the air current passes through the inner core in the in-process, and the inner core can weaken the noise of air current, and then reaches the effect of eliminating the noise, and the air current in the chamber of ventilating is flowed in or flows out via the joint Assembly, because the buffering and the separation of inner core, can avoid producing the disturbance to the air current of main route in the chamber of ventilating to the noise reduction of silencer has been guaranteed.

As an optional implementation mode, the joint assembly comprises a curved pipe joint, an air supplementing pipe joint, a desorption pipe joint and a pressure relief pipe joint, the curved pipe joint, the air supplementing pipe joint and the desorption pipe joint are all arranged on the first shell, and the pressure relief pipe joint is arranged on the second shell, so that the front pipeline and the rear pipeline of the silencer are more compact in structure, and the manufacturing cost is reduced.

As an optional implementation manner, the inner core further includes a main body, the partition assembly is disposed on the main body, the partition assembly includes at least one first partition, and the first partition faces the first casing and encloses with an inner wall of the first casing to form a buffer cavity, so that an airflow entering the ventilation cavity from the buffer cavity can be buffered, and disturbance to a main ventilation airflow in the ventilation cavity is reduced.

As an alternative embodiment, the curved pipe joint, the air supplementing pipe joint and the detachment pipe joint are communicated with the buffer cavity, so that the air flow flowing in from the curved pipe joint and the detachment pipe joint can be buffered, and the air flow flowing out from the air supplementing pipe joint can be buffered.

As an optional implementation manner, the number of the first partition boards is two, and the two first partition boards are sequentially arranged along the extending direction of the ventilation cavity, so that a larger space is formed at one side of the ventilation cavity close to the first shell, and the effect of buffering the airflow is improved.

As an optional implementation mode, the baffle assembly further comprises a second baffle, the second baffle faces the second shell, and the second baffle is arranged opposite to the opening of the pressure relief pipe joint, so that the airflow connected into the pressure relief pipe joint can be blocked, the direct intersection of the airflow and the airflow of the main passage in the ventilation cavity is avoided, and the controllability of the noise reduction effect of the silencer is ensured.

As an alternative embodiment, the inner core further comprises a plurality of sound-absorbing plates, which are located at one side of the ventilation cavity and are spaced apart along the extension direction of the ventilation cavity, so that the noise of the air flow circulating along the main passage of the ventilation cavity can be reduced.

As an alternative embodiment, the silencing plate and the air flow direction in the ventilation cavity have a preset included angle, so that the noise reduction effect of the silencer is improved.

In a second aspect, the present invention provides an air intake system, which comprises the above muffler.

The third aspect, the utility model provides an automobile engine, this automobile engine include foretell air intake system.

The utility model provides a silencer, air intake system and automobile engine, wherein the silencer includes casing assembly, inner core and joint Assembly, casing assembly includes first casing and second casing, first casing closes with second casing lid and forms the chamber of ventilating, the chamber of ventilating has air inlet and gas outlet, the inner core sets up in the chamber of ventilating, joint Assembly sets up on casing assembly, joint Assembly and the chamber intercommunication of ventilating, and joint Assembly's opening and inner core set up relatively, the inner core can play buffering and separation effect to joint Assembly's air current, thereby avoid producing the disturbance to ventilating the air current of main road in the chamber, the noise reduction of silencer has been guaranteed.

In addition to the technical problems addressed by the embodiments of the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the muffler, the intake system, and the automobile engine provided by the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a muffler provided in an embodiment of the present application;

FIG. 2 is an exploded view of a muffler provided in an embodiment of the present application;

FIG. 3 is a schematic structural view of an inner core provided in accordance with an embodiment of the present disclosure;

FIG. 4 is an elevation view of an inner core provided by an embodiment of the present application;

FIG. 5 is a top view of an inner core provided by an embodiment of the present application;

FIG. 6 is a rear view of an inner core provided by an embodiment of the present application;

fig. 7 is a side view of an inner core provided by an embodiment of the present application.

Description of reference numerals:

10-a housing assembly; 101-a ventilation lumen; 11-a first housing; 111-a mounting bracket; 12-a second housing;

20-a curved tube joint; 21-joint of air supply pipe; 22-desorption pipe joint; 23-a pressure relief pipe joint;

30-an inner core; 31-a body; 32-a first separator; 33-a second separator; 34-sound-absorbing board.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. And can be adjusted as needed by those skilled in the art to suit particular applications.

Second, it should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or member must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; there may be communication between the interiors of the two members. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the higher and higher requirements of users on the driving experience of automobiles, the noise in the automobiles is more and more emphasized, and the noise of the air intake system of the engine is one of the important sources of the noise in the automobiles, so the air intake system needs to have the noise reduction function. In the prior art, a muffler is usually added in an air intake system of an engine to reduce noise, the muffler is generally arranged in a pipeline of a clean pipe of the air intake system, and can be an independent component, or a certain section of air intake pipe section is designed into a special noise reduction structure, the noise reduction of the existing air intake system mainly adopts modes of adding a resonant cavity, an 1/4 wave pipe, a porous muffler and the like, wherein the former two modes mainly aim at low-frequency noise, and the latter mode mainly aims at medium-high frequency noise.

Along with turbocharged engine becomes the mainstream of adult car, the application of porous silencer on the real car is more and more general, the shape is mostly circular barrel, so that assembly and sealing, arrange behind the empty filter, before the booster, but because the improvement to the automobile emission requirement, the gas of the interior waste gas of crankcase and the desorption of fuel carbon tank all need get into air intake system, in addition, in the engine of taking turbocharged system, the relief valve also need get into air intake system with high-pressure gas release, consequently need set up a plurality of joints simultaneously on clean pipe, and each joint needs to set up separately with the part of silencer place. Therefore, the existing silencer structure and arrangement mode can increase the manufacturing cost, and under the condition that the spatial layout is limited and each joint cannot be separately arranged from the silencer, the silencer or the silencing cavity of the pipe section with the silencing function is not closed any more, the airflow of each joint can influence the airflow of the main passage in the silencer, so that the silencing frequency of the silencer is deviated and unpredictable, and the requirement of the silencing performance cannot be met.

The utility model provides a silencer, air intake system and automobile engine can guarantee the silencer performance, stabilizes the noise reduction frequency channel of silencer, reduces the engine noise of admitting air, optimizes air intake system's spatial layout simultaneously, reduces production manufacturing cost.

Example one

Fig. 1 is a schematic structural diagram of a muffler provided in an embodiment of the present invention, and fig. 2 is an exploded view of the muffler provided in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the embodiment provides a muffler applied to an air intake system of an automobile engine, the muffler includes a housing assembly 10, an inner core 30, and a joint assembly, the housing assembly 10 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 cover to form a vent chamber 101, and the vent chamber 101 has an air inlet and an air outlet. The air flow enters the ventilation cavity 101 of the silencer through the air inlet and flows out of the air outlet, and then the air flow enters an engine cylinder through a throttle valve of the engine.

Wherein, the inner core 30 is disposed in the ventilation cavity 101, the joint assembly is disposed on the housing assembly 10, the joint assembly is communicated with the ventilation cavity 101, the inner core 30 includes a partition assembly, the partition assembly includes a plurality of partitions, and an opening of the joint assembly is disposed opposite to the inner core 30, the partitions can face the opening of the joint assembly, the inner core 30 has a shape matched with the ventilation cavity 101, and the air flow passes through the inner core 30 when flowing through the ventilation cavity 101.

Specifically, the air flow entering from the air inlet of the ventilation cavity 101 and flowing out from the air outlet is the main path air flow, the noise is mainly generated by the main path air flow, the air flow flowing into the ventilation cavity 101 or flowing into the ventilation cavity 101 is the branch air flow, the main path air flow passes through the inner core 30 in the flow passing process, on one hand, the structure of the inner core 30 can reduce the noise generated by the main path air flow, on the other hand, the inner core 30 can also weaken the influence of the branch air flow of the joint assembly on the main path air flow of the ventilation cavity 101, and therefore the accuracy and the stability of the noise reduction frequency band of the main path air flow by the inner core 30 are guaranteed.

It should be noted that, in the muffler provided by the present application, the inner core 30 can weaken the noise of the main path airflow, so as to achieve the noise reduction effect, and the branch airflow flowing into or out of the ventilation cavity 101 through the joint assembly is mainly buffered and blocked by the inner core 30, so as to avoid the direct blowing and disturbance of the main path airflow in the ventilation cavity 101, thereby ensuring the noise reduction effect of the muffler. The specific construction of the docking assembly and the inner core 30 and the specific relative arrangement of the two will be described in detail below.

As an alternative embodiment, the joint assembly may include a curved pipe joint 20, a gas supplementing pipe joint 21, a detachment pipe joint 22 and a pressure relief pipe joint 23, the curved pipe joint 20, the gas supplementing pipe joint 21 and the detachment pipe joint 22 may be disposed on the first housing 11, and the pressure relief pipe joint 23 is disposed on the second housing 12, so that the front and rear pipe structures of the muffler are more compact, and the manufacturing cost is reduced.

Specifically, the curved pipe joint 20 is communicated with a crankcase of an automobile, exhaust gas in the crankcase can enter the ventilation cavity 101 from the curved pipe joint 20, namely, the exhaust gas enters an air intake system of the engine, so that the exhaust gas can enter the engine for combustion along with air flow of a main passage, and the air supplementing pipe joint 21 is also communicated with the crankcase, so that the crankcase can take air from the air intake system through the ventilation cavity 101, and the pressure in the crankcase is kept smooth.

Desorption coupling 22 and automobile fuel system's carbon tank intercommunication, desorption gas can get into the engine combustion by air intake system during the carbon tank desorption, thereby satisfy the emission demand, desorption coupling 22 can have two, two desorption couplings 22 communicate each other and form two desorption structures, one of them desorption tubular construction is used for forming the negative pressure at the tip, another desorption coupling 22 inhales gas through the negative pressure, gaseous desorption has just been accomplished by the in-process carbon tank of inhaling, the theory of operation to the carbon tank and the concrete structure of desorption coupling 22 are prior art, do not do this and describe repeatedly.

The pressure relief pipe joint 23 is communicated with a turbocharging system of an automobile engine, when the engine works, if a throttle valve is closed, a turbine of the turbocharging system can continuously rotate under the action of inertia, so that the air pressure on a high-pressure side is increased, and at the moment, the pressure relief valve can be opened to discharge high-pressure airflow into an air inlet system through the pressure relief pipe joint 23 and finally enter a low-pressure side of the turbocharging system.

Alternatively, the second housing 12 is used to form a main body space of the ventilation chamber 101, the air inlet and the air outlet may be opened at different sides of the second housing 12, and the joint 20 of the curved tube, the joint 21 of the air supplement tube and the joint 22 of the detachment tube may be respectively disposed at different positions on the first housing 11.

Wherein, because the bent pipe joint 20, tonifying qi coupling 21 all communicate with the engine crankcase, therefore both can adjacent setting, and desorption coupling 22 can set up the different sides at first casing 11, and the concrete position of setting of each joint of butt joint subassembly is not injectd to this application embodiment, can design according to actual space overall arrangement demand.

Optionally, the curved pipe joint 20, the gas supply pipe joint 21 and the desorption pipe joint 22 may be welded to the first housing 11, the pressure release pipe joint 23 may be integrally formed with the second housing 12, the joint assembly and the housing assembly 10 may be made of plastic or metal, and accordingly, the machining methods such as injection molding, stamping forging, metal plate may be adopted.

In addition, the extending direction of the ventilation cavity 101 from the air inlet to the air outlet is arc-shaped, that is, the air inlet and the outlet can face different directions, and the specific extending direction and the radian size can be designed according to the specific pipeline layout of the automobile air inlet system, and the embodiment is not specifically limited.

It should be noted that the branch airflows flowing through the curved pipe joint 20, the make-up air pipe joint 21 and the detachment pipe joint 22 have small flow rates and therefore relatively small pipe diameters, while the branch airflows flowing through the pressure relief pipe joint 23 have large flow rates and therefore relatively large pipe diameters. Illustratively, the bypass flow of pressure relief coupler 23 may be 10% of the main passage flow of vent chamber 101. Different air flow quantities affect the disturbance of the air flow in the main passage of the ventilation cavity 101, so that the inner core 30 can be selected to have different structural modes such as buffering or isolation to reduce the disturbance, and the specific structure of the inner core 30 will be described in detail below.

Fig. 3 is a schematic structural diagram of an inner core provided in an embodiment of the present invention, fig. 4 is a front view of the inner core provided in the embodiment of the present invention, fig. 5 is a top view of the inner core provided in the embodiment of the present invention, fig. 6 is a rear view of the inner core provided in the embodiment of the present invention, and fig. 7 is a side view of the inner core provided in the embodiment of the present invention, as shown in fig. 3 to 7, the inner core 30 may further include a main body 31, the shape of the main body 31 may be matched with the shape of the vent cavity 101, and the main body 31 may be a hollow structure, a baffle assembly may be disposed on the main body 31, the baffle assembly includes at least one first baffle 32, and the first baffle 32 may be disposed facing the first housing 11 and surround an inner wall of the first housing 11 to form a buffer cavity, so as to buffer an airflow entering the vent cavity 101 from the buffer cavity, and reduce disturbance to the main vent airflow in the vent cavity 101.

The curved pipe joint 20, the air supplementing pipe joint 21 and the desorption pipe joint 22 are communicated with the buffer cavity, so that air flows flowing in from the curved pipe joint 20 and the desorption pipe joint 22 can be buffered, and air flows flowing out from the air supplementing pipe joint 21 can also be buffered. Because the gas flow of the curved pipe joint 20, the gas supplementing pipe joint 21 and the detachment pipe joint 22 is small, when the gas flow enters the buffer cavity, the gas flow enters the wider buffer cavity from a small pipe diameter, the gas flow is released, the gas inflow achieves the buffer effect, and the influence on the main channel gas flow in the ventilation cavity 101 is eliminated.

Optionally, the number of the first partition plates 32 is two, the two first partition plates 32 are sequentially arranged along the extending direction of the ventilation cavity 101, one end of each first partition plate 32 is connected with the main body 31 of the inner core 30, the other end of each first partition plate 32 faces the first shell 11, and the outer edge contour of the first partition plate 32 facing one side of the first shell 11 is matched with the inner wall contour of the first shell 11, so that a larger space is formed on one side, close to the first shell 11, of the ventilation cavity 101, and the effect of buffering air flow is improved.

It should be noted that, when the muffler is assembled, the inner core 30 is first placed in the second shell 12, a clamping groove is provided on the second shell 12, a part of the structure of the inner core 30 can be clamped in the clamping groove to keep relative fixation with the second shell 12, then the first shell 11 is covered on the second shell 12, and the matching edge of the first shell 11 and the second shell 12 can be welded and fixed and sealed. The inner core 30 and the inner wall of the first shell 11 may be in a clearance fit manner, or the inner core 30 and the inner wall of the first shell 11 have a small movable clearance, so that on one hand, when the first shell 11 and the second shell 12 are welded, the inner core 30 cannot be welded due to a machining error being jacked up, on the other hand, the inner core 30 can be prevented from moving in the ventilation cavity 101, and the inner core 30 and the ventilation cavity 101 are kept relatively fixed.

As an optional embodiment, the partition plate assembly may further include a second partition plate 33, the second partition plate 33 is disposed facing the second casing 12, and the second partition plate 33 is disposed opposite to the opening of the pressure relief pipe joint 23, so that the air flow accessed by the pressure relief pipe joint 23 may be blocked, and is prevented from directly intersecting with the air flow of the main passage in the ventilation cavity 101, thereby ensuring controllability of noise reduction effect of the muffler.

When the pressure relief valve is opened, when the airflow of the turbocharging system enters the ventilation cavity 101 through the pressure relief pipe joint 23, the branch airflow of the pressure relief pipe joint 23 can be blown on the second partition plate 33, one end of the second partition plate 33 is connected with the inner core 30, the other end faces the second shell 12, and is surrounded with the second shell 12 to form an isolation cavity, so that direct blowing can be avoided in the isolation cavity, and the impact of the branch airflow of the pressure relief pipe joint 23 on the main passage airflow of the ventilation cavity 101 is completely blocked.

In addition, the first partition plate 32, the second partition plate 33 and the main body 31 of the core 30 may be integrally formed, or may be welded, and this is not particularly limited in the embodiment of the present application.

It should be noted that the buffer cavity formed by the first partition 32 and the first housing 11 and the isolation cavity formed by the second partition 33 and the second housing 12 have different influences on the bypass airflow, which mainly depends on the magnitude of the airflow, the flexible pipe joint 20, the air supplement pipe joint 21 and the detachment pipe joint 22 are communicated with the buffer cavity, the airflow is relatively small, the influence of the bypass airflow on the main passage airflow is weakened by releasing the airflow in a buffer mode through the buffer cavity, and the pressure release pipe joint 23 is communicated with the isolation cavity, the airflow is relatively large, so that the isolation cavity is required to completely block the bypass airflow to avoid disturbance on the main passage airflow. In the present embodiment, four connectors are provided on the housing assembly 10, and according to the functional requirements of the air intake system of the automobile engine, connectors with other functions can be connected to the housing assembly 10, and the corresponding structure of the inner core 30 can select the damping or isolating mode according to the air flow quantity of the connectors, and still fall within the protection scope of the embodiment of the present application.

As an alternative embodiment, the inner core 30 may further include a plurality of sound-absorbing plates 34, and the plurality of sound-absorbing plates 34 are located at one side of the ventilation cavity 101 and spaced apart from each other along the extending direction of the ventilation cavity 101, so that the noise of the air flow circulating along the main passage of the ventilation cavity 101 may be reduced.

Wherein, because the ventilation chamber 101 can extend along the arc direction, and the main passage air current circulates in the ventilation chamber 101 along its extending direction, the acoustical panel 34 can be arranged outside the air current arc circulating direction, so that the air current impacts the acoustical panel 34 in the circulating process, and there is a space between the acoustical panels 34 arranged at intervals, thereby weakening the noise under the effect of the acoustical panel 34.

Alternatively, the upper and lower ends of the sound-absorbing plate 34 are respectively connected to two sides of the main body 31 of the inner core 30, and the sound-absorbing plate 34 and the main body 31 of the inner core 30 may be connected in an integral manner.

Optionally, the acoustical panel 34 has the predetermined contained angle with the air current direction in the chamber 101 of ventilating, and in the extending direction in the chamber 101 of ventilating, the acoustical panel 34 of different positions can have different face sizes and predetermine the contained angle to promote the noise reduction effect of silencer, can have corresponding elimination low frequency noise or medium and high frequency noise.

As an optional implementation manner, the housing assembly 10 may further be provided with a mounting bracket 111, the mounting bracket 111 may be integrally formed with the first housing 11, the mounting bracket 111 is used to fix the muffler when an intake engine of the engine is assembled in a complete vehicle, the mounting bracket 111 may be provided with a plurality of mounting holes, and the mounting holes may include mounting through holes and moving holes, so as to ensure reliability of the mounting structure.

It should be noted that, the muffler of this embodiment weakens the influence of the branch airflow due to the stability of the muffling frequency, and in the product design and development process, can ensure that the simulated muffling frequency band has better consistency with the actual muffling frequency band, and reduce the development cost.

This embodiment provides a silencer, this silencer includes the casing subassembly, inner core 30 and joint Assembly, the casing subassembly includes first casing and second casing, first casing closes with second casing lid and forms the chamber of ventilating, the chamber of ventilating has air inlet and gas outlet, the inner core sets up in the chamber of ventilating, joint Assembly sets up on the casing subassembly, joint Assembly and the chamber intercommunication of ventilating, and joint Assembly's opening and inner core set up relatively, the inner core can play buffering and separation effect to joint Assembly's air current, thereby avoid producing the disturbance to the air current of main route in the chamber of ventilating, the noise reduction of silencer has been guaranteed.

Example two

The embodiment provides an air inlet system, which is applied to an automobile engine and comprises the silencer in the first embodiment, and the silencer can reduce noise of the air inlet system.

Wherein, air intake system still includes air cleaner and booster, and the silencer can set up between air cleaner and booster, through clean pipe intercommunication between air cleaner and the booster, the silencer is arranged in the pipe section of clean pipe. In the air intake system of this embodiment, the joint of cranking pipe, tonifying qi union joint, desorption union joint and pressure release union joint all integrate on the silencer to also make each joint have the arrangement space under the shorter condition of clean pipe, can reduce production manufacturing cost simultaneously, and the structure of silencer can eliminate the branch road air current of each joint and the disturbance and the influence of main access air current in the silencer, guarantees noise elimination performance, and specific silencer structure is unanimous with embodiment one, no longer gives unnecessary details here.

EXAMPLE III

The present embodiment provides an automobile engine, which includes the intake system in the second embodiment, the intake system is communicated with the throttle valve of the engine cylinder, when the engine is working, the airflow enters the cylinder of the engine from the intake system to assist fuel combustion, and the muffler in the intake system can reduce the noise when the engine is intake.

It should be noted that the automobile engine in the embodiment may have a turbocharging function, and the muffler in the system may eliminate the corresponding medium-high frequency noise and may cover a higher muffling frequency band. In addition, the automobile engine in this embodiment may be an engine applied to a fuel vehicle, or may be an engine applied to a hybrid vehicle, which is not specifically limited in this embodiment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. A muffler comprising a housing assembly, an inner core and a joint assembly, the housing assembly comprising a first housing and a second housing, the first housing and the second housing covering a vent chamber, the vent chamber having an inlet and an outlet;

the inner core is arranged in the ventilation cavity, the joint assembly is arranged on the shell assembly, the joint assembly is communicated with the ventilation cavity, the inner core comprises a partition plate assembly, the partition plate assembly comprises a plurality of partition plates, and the partition plates are opposite to the joint assembly.

2. The muffler of claim 1, wherein the fitting assembly includes a curved fitting, an air supplement fitting, a desorption fitting, and a pressure relief fitting, the curved fitting, the air supplement fitting, and the desorption fitting all disposed on the first housing, the pressure relief fitting disposed on the second housing.

3. The muffler of claim 2 wherein the inner core further comprises a main body, the baffle assembly being disposed on the main body, the baffle assembly comprising at least one first baffle facing the first shell and cooperating with an inner wall of the first shell to define a buffer chamber.

4. The muffler of claim 3 wherein the labyrinth adapter, the make-up adapter, and the desorption adapter are all in communication with the cushion chamber.

5. The muffler of claim 3, wherein the number of the first partitions is two, and the two first partitions are arranged in series along the extending direction of the vent chamber.

6. The muffler of claim 3 wherein said baffle assembly further comprises a second baffle facing said second housing and disposed opposite said opening of said pressure relief pipe joint.

7. The muffler of any one of claims 3 to 6, wherein the inner core further comprises a plurality of sound absorbing plates located on one side of the vent chamber and spaced apart in the direction of extension of the vent chamber.

8. The muffler of claim 7 wherein said sound attenuating plate is at a predetermined angle to the direction of airflow in said vent chamber.

9. An air intake system comprising a muffler as claimed in any one of claims 1 to 8.

10. An automotive engine comprising the air intake system of claim 9.

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