CN219974662U - Secondary air supplementing, pressure stabilizing and noise reducing device and motorcycle - Google Patents

Abstract

The utility model relates to a secondary air supplementing, pressure stabilizing and noise reducing device and a motorcycle, comprising: the air filter comprises a cavity and an air outlet pipe, wherein the air outlet pipe is connected and communicated with the cavity and is used for being connected with an engine, and a connecting port is formed in the pipe wall of the air outlet pipe; the air supplementing assembly comprises a resonant piece and an air vent pipe, wherein the resonant piece is communicated with the air outlet pipe through the connecting port, the resonant piece is provided with a resonant cavity, one end of the air vent pipe is communicated with the resonant cavity, and the other end of the air vent pipe is communicated with the engine. In the working process, the resonance piece can provide resonance voltage stabilizing effect for the engine air inlet system, and meanwhile, the resonance piece is used as a voltage stabilizing cavity of the secondary air supplementing system, so that the effect of double resonance is achieved, parts are not required to be additionally added, the whole vehicle space is not additionally occupied while the cost is saved, the design freedom degree is improved, and the whole vehicle arrangement difficulty is reduced.

Description

Secondary air supplementing, pressure stabilizing and noise reducing device and motorcycle

Technical Field

The utility model relates to the technical field of motorcycle engines, in particular to a secondary air supplementing, pressure stabilizing and noise reducing device and a motorcycle.

Background

With the development of motorcycle engine technology, a secondary air supplementing technology appears, in order to reduce the emission of atmospheric pollutants, vehicles such as two-wheeled motorcycles and the like can be provided with a secondary air supplementing device at a specific position of an exhaust pipeline, and in the process of engine exhaust, if related measures are not taken, the combustible gas which is not completely combusted in the combustion chamber of the engine can be simultaneously emitted into the atmosphere to become atmospheric pollutants. The secondary air supplementing system can fully generate oxidation reaction of the high-temperature incompletely combusted combustible gas by guiding fresh air in the air filter into the exhaust pipe to supplement more oxygen, so that carbon dioxide and water vapor with less pollution to the atmosphere are generated.

Due to the exhaust characteristic of the engine, the exhaust process of the engine can generate continuously fluctuating exhaust pressure waves in the exhaust pipe, when the pressure in the exhaust pipe is lower than the pressure upstream of the secondary air supplementing system, fresh air can enter the exhaust pipe from the clean cavity of the air filter through the secondary air supplementing system, and when the pressure of the exhaust pipe is higher than the pressure upstream of the secondary air supplementing system, the valve is closed so as to prevent exhaust gas from flowing back into the air filter. Conventionally, the breather pipe of the secondary air supplementing system can be directly connected into the clean cavity of the air filter, and due to the fact that the frequency of the fluctuation of the exhaust pressure wave is high, the switching frequency of the valve on the secondary air supplementing system is also high, the pressure fluctuation of the corresponding frequency can be generated inside the air filter, and abnormal airflow noise is generated by the air filter.

Disclosure of Invention

Based on this, it is necessary to provide a secondary air supplementing, pressure stabilizing and noise reducing device and a motorcycle aiming at the problem of current air filter airflow noise, which can effectively reduce noise and improve pressure stabilizing effect.

The technical scheme is as follows: a secondary air-supplementing, pressure-stabilizing and noise-reducing device, comprising: the air filter comprises a cavity and an air outlet pipe, wherein the air outlet pipe is connected and communicated with the cavity and is used for being connected with an engine, and a connecting port is formed in the pipe wall of the air outlet pipe; the air supplementing assembly comprises a resonant piece and an air vent pipe, wherein the resonant piece is communicated with the air outlet pipe through the connecting port, the resonant piece is provided with a resonant cavity, one end of the air vent pipe is communicated with the resonant cavity, and the other end of the air vent pipe is communicated with the engine.

Above-mentioned device of making an uproar falls in secondary air filling steady voltage, in the installation, with the resonance piece intercommunication on the connector on the pipe wall of outlet duct, with the breather pipe intercommunication between resonant cavity and engine, in the course of the work, utilize this resonance piece ingeniously, the resonance piece can enough provide resonance steady voltage effect for engine air intake system, use as the steady voltage chamber of secondary air filling system simultaneously, one thing is dual-purpose, the effect of dual resonance has been realized, need not increase spare part in addition, can not additionally occupy whole car space when saving the cost, be favorable to improving the design degree of freedom, reduce whole car and arrange the degree of difficulty. In addition, the device obviously reduces the abnormal air intake noise generated by the secondary air supplementing system, does not influence the air intake efficiency of the combustion chamber of the engine and does not influence the acting performance of the engine.

In one embodiment, the number of the air outlet pipes is at least two, the at least two air outlet pipes are communicated with the cavity, the number of the resonant pieces is at least two, and the air outlet pipes are in one-to-one correspondence with the resonant pieces.

In one embodiment, the secondary air supplementing, pressure stabilizing and noise reducing device further comprises a regulating valve, wherein the regulating valve can be simultaneously arranged between the two air outlet pipes and the engine in an openable and closable mode, so that the regulating valve is simultaneously opened or closed at least two air outlet pipes.

In one embodiment, the regulating valve comprises a valve body, valve plates and a rotating shaft, wherein at least two air passages are formed in the valve body, two ends of each air passage are respectively communicated with the air outlet pipe and the engine, the number of the valve plates is at least two and are both connected with the rotating shaft, and each air passage corresponds to one valve plate.

In one embodiment, the regulating valve further comprises a driving member, wherein the driving member is in driving connection with the rotating shaft, and the driving member is used for driving the rotating shaft to rotate.

In one embodiment, the air supplementing assembly further comprises a first valve, and the first valve is arranged on the ventilation pipe in an openable and closable mode.

In one embodiment, the air supplementing assembly further comprises a one-way valve, the one-way valve is arranged on the air pipe, the air pipe is used for being connected with an engine through the one-way valve, and when the air pipe gives out air to the engine, the one-way valve is opened.

In one embodiment, the air supplementing assembly further comprises at least two branch pipes, the engine is provided with exhaust pipes, the number of the exhaust pipes is at least two, and the branch pipes are communicated with the exhaust pipes and are arranged in a one-to-one correspondence mode.

In one embodiment, the air filter further comprises an air inlet pipe and a filter element, the cavity is provided with a filter opening, the filter element covers the filter opening, and the air inlet pipe is communicated with the filter opening.

A motorcycle comprising the secondary air supplementing, pressure stabilizing and noise reducing device according to any one of the above.

Above-mentioned motorcycle, in the installation, with resonance piece intercommunication on the connector on the pipe wall of outlet duct, with the breather pipe intercommunication between resonant cavity and engine, in the course of the work, utilize this resonance piece ingeniously, resonance piece can be enough for engine air intake system provides resonance steady voltage effect, use as the steady voltage chamber of secondary air supplementing system simultaneously, one thing is dual-purpose, the effect of dual resonance has been realized, need not increase spare part in addition, can not additionally occupy whole car space when saving the cost, be favorable to improving the design degree of freedom, reduce whole car and arrange the degree of difficulty. In addition, the device obviously reduces the abnormal air intake noise generated by the secondary air supplementing system, does not influence the air intake efficiency of the combustion chamber of the engine and does not influence the acting performance of the engine.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an overall structure of a secondary air-supplementing, pressure-stabilizing and noise-reducing device according to an embodiment.

Fig. 2 is a schematic structural diagram of another view of fig. 1.

Fig. 3 is a schematic exploded view of a secondary air-supplementing, pressure-stabilizing and noise-reducing device according to an embodiment.

Fig. 4 is a schematic structural diagram of a regulating valve according to an embodiment.

Reference numerals illustrate:

100. the secondary air supplementing, pressure stabilizing and noise reducing device; 110. an air filter; 111. a cavity; 112. an air outlet pipe; 113. an air inlet pipe; 114. a filter; 120. an air supplementing component; 121. a resonating member; 122. a vent pipe; 123. a first valve; 124. a one-way valve; 125. a branch pipe; 130. a regulating valve; 131. a valve body; 132. a valve plate; 133. a rotating shaft; 134. an airway; 135. a driving member; 200. and an exhaust pipe.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic diagram illustrating an overall structure of a secondary air-supplementing, pressure-stabilizing and noise-reducing device 100 according to an embodiment of the utility model. Fig. 2 shows a schematic structural diagram of another view of fig. 1. Fig. 3 is an exploded view of the secondary air-supplementing, pressure-stabilizing and noise-reducing device 100 according to an embodiment of the utility model. In one embodiment of the present utility model, a secondary air-supplementing, pressure-stabilizing and noise-reducing device 100, the secondary air-supplementing, pressure-stabilizing and noise-reducing device 100 includes: an air filter 110 and an air make-up assembly 120. The air filter 110 comprises a cavity 111 and an air outlet pipe 112, wherein the air outlet pipe 112 is connected and communicated with the cavity 111, the air outlet pipe 112 is used for being connected with an engine, and a connecting port is arranged on the pipe wall of the air outlet pipe 112. The air supplementing assembly 120 comprises a resonant piece 121 and an air vent pipe 122, wherein the resonant piece 121 is communicated with the air outlet pipe 112 through a connecting port, the resonant piece 121 is provided with a resonant cavity, one end of the air vent pipe 122 is communicated with the resonant cavity, and the other end of the air vent pipe 122 is used for being communicated with an engine.

Above-mentioned device 100 of making an uproar falls in secondary air feed back steady voltage, in the installation, with resonance piece 121 intercommunication on the connector on the pipe wall of outlet duct 112, with breather pipe 122 intercommunication between resonant cavity and engine, in the course of the work, utilize this resonance piece 121 ingeniously, resonance piece 121 can be enough provide resonance steady voltage effect for engine air intake system, use as the steady voltage chamber of secondary air feed back system simultaneously, one thing is dual-purpose, the effect of dual-resonance has been realized, need not increase in addition spare part, can not additionally occupy whole car space when saving the cost, be favorable to improving the design degree of freedom, reduce whole car and arrange the degree of difficulty. In addition, the device obviously reduces the abnormal air intake noise generated by the secondary air supplementing system, does not influence the air intake efficiency of the combustion chamber of the engine and does not influence the acting performance of the engine.

In one embodiment, referring to fig. 1 and 2, the number of the air outlet pipes 112 is at least two, the at least two air outlet pipes 112 are all communicated with the cavity 111, the number of the resonant members 121 is at least two, and the air outlet pipes 112 are arranged in a one-to-one correspondence with the resonant members 121. Thus, each air outlet pipe 112 is provided with a resonant member 121, so that the voltage-stabilizing resonance performance can be ensured.

The air compensating assembly 120 may be a set, for example, referring to fig. 1, and the set of air compensating assemblies 120 is disposed between one of the resonant cavities and the engine. In other embodiments, the number of the air supplementing components 120 may be more than two, and each air outlet pipe 112 corresponds to one group of air supplementing components 120, and each group of air supplementing components 120 is communicated with the engine.

Further, at least two of the resonator elements 121 are in communication with each other (not shown). Thus, a total resonant member 121 is formed, which is beneficial to expanding the volume of the resonant cavity and improving the effect of resonance voltage stabilization.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a structure of the regulating valve 130 according to an embodiment of the utility model. In one embodiment, the secondary air-supplementing, pressure-stabilizing and noise-reducing device 100 further includes a regulating valve 130, where the regulating valve 130 is simultaneously configured between the two air outlet pipes 112 and the engine in an openable and closable manner, so that the regulating valve 130 is simultaneously opened or closed at least two air outlet pipes 112. In this manner, the air output of at least two air outlet pipes 112 can be simultaneously adjusted by the adjusting valve 130, thereby adjusting the air intake rate of the engine.

In one embodiment, referring to fig. 4, the regulating valve 130 includes a valve body 131, valve plates 132 and a rotating shaft 133, at least two air passages 134 are formed in the valve body 131, two ends of each air passage 134 are respectively connected to the air outlet pipe 112 and the engine, the valve plates 132 are at least two and are connected to the rotating shaft 133, and each air passage 134 corresponds to one valve plate 132. Thus, by controlling the rotation of the rotating shaft 133, the two air passages 134 can be opened or closed at the same time, and by adjusting the rotation angle of the rotating shaft 133, the opening of the valve 130 sheet 132 is adjusted, and the air outlet rate of the air outlet pipe 112 is adjusted.

Alternatively, the regulator valve 130 may be a pneumatic valve, a hydraulic valve, an electric valve, a solenoid valve, or other valve type.

Specifically, referring to fig. 4, the adjusting valve 130 further includes a driving member 135, the driving member 135 is drivingly connected to the rotating shaft 133, and the driving member 135 is configured to drive the rotating shaft 133 to rotate. For example, the regulating valve 130 is an electric regulating valve 130, the driving member 135 is a motor, and thus the rotation of the rotating shaft 133 is controlled by the motor, so that the rotation of the valve plate 132 is controlled to switch the opening and closing degree of the regulating valve 130, thereby controlling the air outlet amount, and the control is simple and the reliability is strong. The embodiment provides only one specific embodiment of the regulating valve 130, but is not limited thereto.

In one embodiment, referring to fig. 1, the air supplementing assembly 120 further includes a first valve 123, where the first valve 123 is disposed on the air pipe 122 in an openable and closable manner. In this way, the first valve 123 can automatically open and close the ventilation pipe 122, thereby improving the convenience of control during secondary air supply.

Alternatively, the first valve 123 may be a pneumatic valve, a hydraulic valve, an electric valve, a solenoid valve, or other valve type.

Specifically, the first valve 123 is a solenoid valve. Therefore, the control is simple, the stability is strong, and the switch is controlled by the vehicle-mounted computer so as to control the working state of the secondary air supplementing system according to different working conditions. The embodiment provides only one specific embodiment of the first valve 123, but is not limited thereto.

In one embodiment, air make-up assembly 120 further includes a check valve 124, check valve 124 being disposed on breather tube 122, and breather tube 122 being configured to be coupled to an engine via check valve 124, check valve 124 opening when breather tube 122 is vented to the engine. As such, due to the exhaust characteristics of the engine, the exhaust process of the engine may generate an exhaust pressure wave that continuously fluctuates in the engine exhaust pipe 200, when the pressure in the engine exhaust pipe 200 is lower than the pressure upstream of the check valve 124, the check valve 124 may be opened due to the negative pressure effect, at this time, fresh air may be introduced into the engine exhaust pipe 200 from the clean chamber of the air filter 110 through the secondary air supplementing system, and when the pressure in the engine exhaust pipe 200 is greater than the pressure upstream of the check valve 124, the check valve 124 is closed to prevent the exhaust gas from flowing backward into the air filter 110.

Specifically, referring to fig. 1 and 2, the check valve 124 is a one-way reed valve that is connected between an end of the breather pipe 122 remote from the cavity 111 and the engine exhaust pipe 200. Thus, the function of the one-way valve 124 is finished through the elastic deformation of the reed, the structure is simple, the tightness is strong, the service life is long, and the stability is high.

In one embodiment, please refer to fig. 1 and fig. 2, the air supplementing assembly 120 further includes at least two branch pipes 125, the engine is provided with an exhaust pipe 200, the number of the exhaust pipes 200 is at least two, and the branch pipes 125 are communicated with the exhaust pipes 200 and are arranged in a one-to-one correspondence manner. Therefore, the at least two exhaust pipes 200 can be secondarily supplemented with air through the group of air supplementing assemblies 120, which is beneficial to improving the secondary air supplementing efficiency.

In one embodiment, referring to fig. 3, the air filter 110 further includes an air inlet pipe 113 and a filter element 114, the cavity 111 is provided with a filter opening, the filter element 114 covers the filter opening, and the air inlet pipe 113 is communicated with the filter opening. In this way, air is filtered by the filter 114 from the air inlet pipe 113 and then enters the cavity 111, and the whole cavity 111 does not need to be opened, so that the filter 114 is convenient to install and replace.

In one embodiment, a motorcycle (not shown) includes the secondary air supply pressure stabilizing noise reduction device 100 of any of the above.

Above-mentioned motorcycle, in the installation, with resonance piece 121 intercommunication on the connector on the pipe wall of outlet duct 112, with breather pipe 122 intercommunication between resonant cavity and engine, in the course of the work, utilize this resonance piece 121 ingeniously, resonance piece 121 can enough provide resonance steady voltage effect for engine air intake system, use as the steady voltage chamber of secondary air supplement system simultaneously, one thing is dual-purpose, the effect of dual resonance has been realized, do not need in addition to increase spare part, can not additionally occupy whole car space when saving the cost, be favorable to improving the design degree of freedom, reduce whole car and arrange the degree of difficulty. In addition, the device obviously reduces the abnormal air intake noise generated by the secondary air supplementing system, does not influence the air intake efficiency of the combustion chamber of the engine and does not influence the acting performance of the engine.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a device of making an uproar falls in secondary tonifying qi steady voltage, its characterized in that, device of making an uproar falls in secondary tonifying qi steady voltage includes:

the air filter comprises a cavity and an air outlet pipe, wherein the air outlet pipe is connected and communicated with the cavity and is used for being connected with an engine, and a connecting port is formed in the pipe wall of the air outlet pipe;

the air supplementing assembly comprises a resonant piece and an air vent pipe, wherein the resonant piece is communicated with the air outlet pipe through the connecting port, the resonant piece is provided with a resonant cavity, one end of the air vent pipe is communicated with the resonant cavity, and the other end of the air vent pipe is communicated with the engine.

2. The secondary air supplementing, pressure stabilizing and noise reducing device according to claim 1, wherein the number of the air outlet pipes is at least two, the at least two air outlet pipes are communicated with the cavity, the number of the resonant pieces is at least two, and the air outlet pipes are in one-to-one correspondence with the resonant pieces.

3. The secondary air-supplementing, pressure-stabilizing and noise-reducing device according to claim 2, further comprising a regulating valve which is simultaneously arranged between the two air outlet pipes and the engine in an openable and closable manner, so that the regulating valve is simultaneously opened or closed at least two air outlet pipes.

4. The secondary air supplementing, pressure stabilizing and noise reducing device according to claim 3, wherein the regulating valve comprises a valve body, valve plates and a rotating shaft, at least two air passages are formed in the valve body, two ends of each air passage are respectively communicated with the air outlet pipe and the engine, the number of the valve plates is at least two, the valve plates are both connected with the rotating shaft, and each air passage corresponds to one valve plate.

5. The secondary air-supplementing, pressure-stabilizing and noise-reducing device according to claim 4, wherein the regulating valve further comprises a driving member, the driving member is in driving connection with the rotating shaft, and the driving member is used for driving the rotating shaft to rotate.

6. The secondary air-make-up, voltage-stabilizing and noise-reducing device of claim 1, wherein the air-make-up assembly further comprises a first valve, the first valve being openably and closably disposed on the vent tube.

7. The secondary air-supplementing, pressure-stabilizing and noise-reducing device according to claim 1, wherein the air-supplementing assembly further comprises a one-way valve, the one-way valve is arranged on the breather pipe, the breather pipe is used for being connected with an engine through the one-way valve, and the one-way valve is opened when the breather pipe gives out air to the engine.

8. The secondary air supplementing, pressure stabilizing and noise reducing device according to claim 7, wherein the air supplementing assembly further comprises branch pipes, the number of the branch pipes is at least two, the engine is provided with exhaust pipes, the number of the exhaust pipes is at least two, and the branch pipes are communicated with the exhaust pipes and are arranged in a one-to-one correspondence manner.

9. The secondary air-supplementing, pressure-stabilizing and noise-reducing device according to any one of claims 1 to 8, wherein the air filter further comprises an air inlet pipe and a filter element, the cavity is provided with a filter opening, the filter element covers the filter opening, and the air inlet pipe is communicated with the filter opening.

10. A motorcycle comprising the secondary air supplementing, pressure stabilizing and noise reducing device according to any one of claims 1 to 9.