CN214698011U - Exhaust valve device of variable exhaust gas channel of motorcycle - Google Patents

Abstract

The utility model discloses a motorcycle variable exhaust gas channel exhaust valve device, which comprises a shell, a first three-way catalyst, a second three-way catalyst, a first mesh pipe and a second mesh pipe which are arranged in the shell, and an exhaust gas pipe, an exhaust pipe and a servo motor body which are arranged outside the shell, wherein the exhaust gas pipe comprises a first exhaust gas pipe and a second exhaust gas pipe, one end of the first exhaust gas pipe extends into the shell and is connected with the first three-way catalyst and the first mesh pipe in sequence; a servo motor body is arranged on the first exhaust pipe, and an exhaust valve is arranged in the servo motor body; second exhaust gas pipe and first exhaust gas pipe intercommunication, the one end of second exhaust gas pipe extend to in the shell connect gradually with second three way catalyst converter, second mesh pipe, the one end of blast pipe extends to in the shell with first mesh union coupling, lets the output power of the engine of motorcycle stronger, purifies waste gas simultaneously, can satisfy the pursuit of motorcycle fan to the sound quality again when making an uproar.

Description

Exhaust valve device of variable exhaust gas channel of motorcycle

Technical Field

The utility model relates to a motorcycle valve, concretely relates to variable exhaust gas channel exhaust valve device of motorcycle.

Background

For motorcycle enthusiasts, the booming sound of the motorcycle is not noise in ears, but rather is the pursuit of sound quality, but for surrounding residents, the booming sound is undoubtedly noise, the main noise of the motorcycle comes from an engine, and the main noise of the engine is exhaust noise, so that the emission of the exhaust noise is controlled, the exhaust emission reaches the standard, and meanwhile, the pursuit of the motorcycle enthusiasts on the sound quality can be met. The sound quality is defined as the degree of satisfaction of various personal requirements of auditory events, and the sound is expected to be more pleasant and the dynamic performance of the engine can be fed back. For a motorcycle, the internal structure of the exhaust pipe is a silencer, so that the effects of silencing and discharging are realized, the traditional exhaust acoustics matching is adopted mostly, and the design of noise is reduced as much as possible. A technology for opening a valve in advance for a motorcycle engine is also called a valve overlap angle, and aims to exhaust waste gas of the engine and absorb more oxygen and fuel oil at the same time, so that stronger power output is improved. The design opens up a brand new era for the power output of the engine, however, when the engine is in high-speed explosion, the exhaust is usually for the problems of noise reduction and emission, which causes the problem that the exhaust is not smooth when the engine is in high-speed explosion, the air pressure is too large to generate great exhaust gas flow back pressure, when the engine valve is opened in advance, the exhaust valve is not completely closed, the valve overlap angle is generated, when the exhaust air pressure is too large, most of the exhaust gas is generated in the valve overlap, the exhaust gas is back-pressed to the combustion chamber because the exhaust air pressure is too large, the intake valve 12 is opened in advance to not absorb more fuel and oxygen, the back-pressed exhaust gas and oxygen fuel are mixed together in the combustion chamber to work, and the problem that the exhaust gas is back-pressed to the combustion chamber is easy to generate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art, aim at provides a variable exhaust gas channel exhaust valve device of motorcycle, lets the output power of the engine of motorcycle stronger, purifies waste gas simultaneously, can satisfy the pursuit of motorcycle fan to the sound quality again when making an uproar falls.

The utility model discloses a following technical scheme realizes:

a motorcycle variable exhaust gas channel exhaust valve device comprises a shell, an exhaust gas pipe, an exhaust pipe, a servo motor body, a first three-way catalyst, a second three-way catalyst, a first mesh pipe and a second mesh pipe, wherein the first three-way catalyst, the second three-way catalyst, the first mesh pipe and the second mesh pipe are arranged in the shell; the other end of the first exhaust gas pipe is communicated with one end of the second exhaust gas pipe outside the shell, a servo motor body is arranged on the first exhaust gas pipe between the communicating part and the shell, and an exhaust valve is arranged in the servo motor body; the other end of the second exhaust gas pipe extends into the shell and is sequentially connected with the second three-way catalyst and the second mesh pipe.

Different from the existing silencer of the motorcycle, the valve device is arranged on the engine in the scheme, when the waste gas of the motorcycle enters the air inlet of the exhaust valve on the first waste gas pipe of the motorcycle through the waste gas pipe, if the electromagnetic valve of the exhaust valve is in a closed state, the waste gas flow passes through the channel of the second waste gas pipe, the waste gas flow is purified through the second three-way catalyst to decompose the waste gas shock wave generated during the operation of the engine, then the waste gas shock wave is decomposed through the second mesh pipe, the silencing effect can be achieved, and finally, the waste gas flow after decomposition, silencing and purification is subjected to secondary silencing through the purification and decomposition of the third three-way catalyst through the first mesh pipe and is discharged through the exhaust pipe; if the solenoid valve of exhaust valve is under the open mode, the waste gas air current will only partly purify and decompose through second waste gas pipe passageway, most waste gas air current will directly be through the first waste gas pipe passageway that the exhaust valve solenoid valve opened, waste gas shock wave is through the purification decomposition and the amortization of first three way catalyst converter, waste gas shock wave is then decomposed and the amortization through the mesh of first mesh pipe, purify again through the third three way catalyst converter at last and decompose and the amortization again for can bring pleasing to the eye sound when gas emission is up to standard again.

The sound of the original factory is finally discharged when the exhaust valve is closed, but the sound is lower, more muddy and better than that of the original factory, when the exhaust valve is opened, pleasant sound can be brought, and the sound can be controlled according to the opening degree of the exhaust valve. The exhaust is effectively purified by the three-way catalytic converter twice, when the motorcycle is in low rotating speed, the density of the three-way catalytic is very high twice, so that the engine does not lose part of low torque of the low rotating speed due to refitting exhaust, but the motorcycle engine can explode in high rotating speed, and under the condition of same displacement and same fuel oil consumption, the motorcycle using the exhaust gas channel exhaust valve device of the motorcycle has larger horsepower and stronger high-rotation explosion than the motorcycle exhausted by a factory, because the valve of the motorcycle engine is opened in advance to generate a valve overlap angle, more oxygen and fuel oil can be sucked while the exhaust gas of the engine is exhausted, and stronger power output is improved. And the smooth back pressure value of exhaust under the valve opening state is very little, has solved the problem that waste gas back pressure returned the combustion chamber, has provided the engine moreover and has exported more powerful when the high commentaries on classics. Thus, when the exhaust valve is opened, the sound wave and stronger power which are pleased to surge can be provided for motorcycle riders when the motorcycle riders run mountains, outskirts and go-anywhere, the pursuit of motorcycle enthusiasts for sound quality is met, and a series of phenomena of disturbing residents and blasting streets can be avoided by closing the exhaust valve when the motorcycle riders ride in cities, downtown areas, residential areas and at night.

Further preferably, the exhaust gas purification device further comprises a third three-way catalyst, wherein the third three-way catalyst is arranged in the shell and is arranged between the first mesh pipe and the exhaust pipe.

Further preferably, follow the shell inner wall is equipped with the mesh board, is equipped with the amortization cotton between mesh board and shell, and the cotton high temperature resistant anticorrosion of amortization and main function have efficient amortization and sound absorption effect, send noise and excessive noise when preventing that waste gas air current shock wave from colliding with the exhaust box.

Further preferably, shell, exhaust pipe, first mesh pipe, second mesh pipe and blast pipe all adopt 304 stainless steel's material, adopt 304 stainless steel material not rusty, difficult corruption, high temperature resistant can also effectively improve lasting rate of utilization.

Further preferably, the mesh plate is made of 304 stainless steel, the 304 stainless steel mesh plate mainly has the advantages of being free of rust, corrosion resistant, high temperature resistant and durable in use rate, the silencing cotton is not impacted by waste gas shock waves to fall off or deform, and the meshes of the 304 stainless steel mesh plate have the functions of enabling the silencing cotton to exert high-efficiency silencing, absorbing noise and noise.

Further preferably, the exhaust valve is made of aluminum alloy, the aluminum alloy expands under the high-temperature condition, the contraction coefficient is very small, the high-temperature resistance and the heat dissipation are fast, and the good working temperature and environment of the variable waste gas airflow channel servo motor are provided, so that the service efficiency and the service life of the variable waste gas airflow channel servo motor body are greatly improved.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model relates to a variable exhaust gas channel exhaust valve device of motorcycle, the valve degree of opening and shutting according to exhaust valve carries out the control of sound size, and discharge also effectual purification that obtains twice three way catalyst converter, make motorcycle engine change the outbreak at the height through twice three way catalysis under the condition of motorcycle low rotational speed, let the output power of the engine of motorcycle stronger, and three way catalyst converter also can play the noise cancelling action when purifying the decomposition, use mesh pipe and mesh board also can play the noise cancelling action, make can satisfy exhaust emission standard and the effect of making an uproar fall again when satisfying the pursuit of motorcycle fan to the sound quality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 shows an embodiment of the present invention;

reference numbers and corresponding part names in the drawings:

1-shell, 2-silencing cotton, 3-mesh plate, 4-exhaust pipe, 41-first exhaust pipe, 42-second exhaust pipe, 43-exhaust pipe, 5-servo motor body, 51-exhaust valve, 6-first three-way catalyst, 7-second three-way catalyst, 8-third three-way catalyst, 9-second mesh pipe, 10-first mesh pipe, 11-piston, 12-air inlet valve and 13-exhaust valve.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.

Example 1

The utility model relates to a variable exhaust gas passageway exhaust valve device of motorcycle, including shell 1, exhaust gas pipe 4, blast pipe 43, servo motor body 5, first three way catalyst converter 6, second three way catalyst converter 7, first mesh pipe 10 and second mesh pipe 9 locate in shell 1, exhaust gas pipe 4, blast pipe 43 and servo motor body 5 locate the shell 1 outside, exhaust gas pipe 4 includes first exhaust gas pipe 41 and second exhaust gas pipe 42, and the one end of first exhaust gas pipe 41 extends to and connects gradually with first three way catalyst converter 6, first mesh pipe 10 in shell 1, and the one end of blast pipe 43 extends to and is connected with first mesh pipe 10 in the shell 1; the other end of the first exhaust pipe 41 and one end of the second exhaust pipe 42 are communicated outside the housing 1, a servo motor body 5 is arranged on the first exhaust pipe 41 between the communication part and the housing 1, and an exhaust valve 51 is arranged in the servo motor body 5; the other end of the second exhaust gas pipe 42 extends into the housing 1 and is connected with the second three-way catalyst 7 and the second mesh pipe 9 in sequence.

On the basis of the above structure, as shown in fig. 1, in one embodiment, a third three-way catalyst 8 is further included, and the third three-way catalyst 8 is provided in the housing 1, interposed between the first mesh pipe 1 and the exhaust pipe 43.

In one embodiment, the exhaust box further comprises a mesh plate 3, the mesh plate 3 is arranged in the shell 1, silencing cotton 2 is arranged between the mesh plate 3 and the shell 1, the silencing cotton 2 is high-temperature resistant and corrosion resistant, and has the main functions of high-efficiency silencing and sound absorption, so that noise and excessive noise are prevented from being generated when the waste gas flow shock wave collides with the exhaust box body.

In one embodiment, the housing 1, the exhaust pipe 4, the first mesh pipe 10, the second mesh pipe 9 and the exhaust pipe 43 are made of 304 stainless steel, and the 304 stainless steel is not rusted, is not easy to corrode, is high temperature resistant, and can effectively improve the lasting utilization rate.

In one embodiment, the mesh plate 3 is made of 304 stainless steel, the 304 stainless steel mesh plate 3 mainly has the functions of rust prevention, corrosion resistance, high temperature resistance and durable utilization rate, the silencing cotton 2 is not impacted by the waste gas shock wave to fall off or deform, and the meshes of the 304 stainless steel mesh plate 3 have the functions of enabling the silencing cotton 2 to effectively silence, absorb noise and noise.

In an embodiment, the exhaust valve 51 is made of an aluminum alloy, the aluminum alloy expands at a high temperature, the contraction coefficient is very small, the high temperature resistance and the heat dissipation are fast, and the good working temperature and environment of the variable exhaust gas flow passage servo motor are provided, so that the service efficiency and the service life of the variable exhaust gas flow passage servo motor body 5 are greatly improved.

The specific working process of this embodiment is, install the valve device on the engine, when the motorcycle exhaust enters the air inlet of the exhaust valve 51 on the first exhaust pipe 41 of motorcycle through the exhaust pipe 4, if the electromagnetic valve of the exhaust valve 51 is in the closed state, the exhaust gas air current will pass through the pipe passage of the second exhaust pipe 42, the exhaust gas air current passes through the purification of the second three-way catalyst 7, decompose the exhaust gas shock wave produced when the engine works, then will play a role in silencing when decomposing the exhaust gas shock wave through the second mesh pipe 9, the exhaust gas air current after decomposing, silencing and purifying passes through the purification and decomposition of the third three-way catalyst 8 through the first mesh pipe 10 and silences again finally, discharge through the exhaust pipe 43; as shown in fig. 2, if the electromagnetic valve of the exhaust valve 51 is in an open state, the piston 11 does not reach the top dead center of the piston 11, at this time, the intake valve 12 is opened in advance, the exhaust valve 13 is not closed completely, a valve overlap angle occurs, exhaust gas is discharged at the valve overlap angle, only a small portion of the exhaust gas flow is purified and decomposed through the second exhaust gas pipe 42, most of the exhaust gas flow directly passes through the first exhaust gas pipe 41 with the electromagnetic valve of the exhaust valve 51 opened, the exhaust gas shock wave is purified, decomposed and silenced through the first three-way catalyst 6, the exhaust gas shock wave is decomposed and silenced through the meshes of the first mesh pipe 10, and finally, the exhaust gas is purified, decomposed and silenced again through the third three-way catalyst 8, so that the exhaust gas reaches the standard and simultaneously brings pleasant sound.

When the exhaust pressure is too high, most of the exhaust gas will be back-pressed to the combustion chamber due to too high exhaust pressure in the valve overlap, and the exhaust gas flow will flow back as shown in fig. 2, which will cause the intake valve 12 to open earlier but not suck more fuel and oxygen, and the back-pressed exhaust gas and oxygen fuel will be mixed together to work in the combustion chamber, and the back-pressed exhaust gas will be back-pressed to the combustion chamber. The variable exhaust passage exhaust valve is used in the scheme, the problem that the exhaust gas is reversely pressed back to the combustion chamber is solved very small when the exhaust valve is in an open state, and the output power of the engine is stronger when the engine is in high rotation. Thus, when the exhaust valve is opened, the sound wave and stronger power which are pleased to surge can be provided for motorcycle riders when the motorcycle riders run mountains, outskirts and go-anywhere, the pursuit of motorcycle enthusiasts for sound quality is met, and a series of phenomena of disturbing residents and blasting streets can be avoided by closing the exhaust valve when the motorcycle riders ride in cities, downtown areas, residential areas and at night.

The sound of the original factory is finally discharged when the exhaust valve 51 is closed, but the sound is lower than that of the original factory, the sound is better, pleasant sound can be brought when the exhaust valve 51 is opened, and the sound can be controlled according to the opening degree of the exhaust valve. The exhaust is effectively purified by the three-way catalytic converter twice, when the motorcycle is in low rotating speed, the density of the three-way catalytic is very high twice, so that the engine does not lose part of low torque of the low rotating speed due to refitting exhaust, but the motorcycle engine can explode in high rotating speed, and under the condition of same displacement and same fuel oil consumption, the motorcycle using the exhaust gas channel exhaust valve device of the motorcycle has larger horsepower and stronger high-rotation explosion than the motorcycle exhausted by a factory, because the valve of the motorcycle engine is opened in advance to generate a valve overlap angle, more oxygen and fuel oil can be sucked while the exhaust gas of the engine is exhausted, and stronger power output is improved. When the engine is in high-speed explosion, the exhaust is usually for the problems of noise reduction and emission, so that the exhaust is not smooth and the air pressure is too high to generate great exhaust gas flow back pressure during the high-speed explosion of the engine, and when the engine intake valve 12 is opened in advance, the exhaust valve is not completely closed, so that the valve overlap angle is generated. The engine intake valve 12 and the exhaust valve have four different states during operation, and the four states of operation have the following functions: when the air inlet valve 12 is opened early, the opening height of the valve at the beginning of the air inlet stroke is increased, the air inlet resistance is reduced, and the air inlet amount is increased; the air inlet valve 12 is closed later, so that the air inlet time is prolonged, and the air inlet amount is increased under the action of atmospheric pressure and gas inertia force; when the exhaust valve 13 is opened early, the exhaust valve exhausts automatically by means of high pressure in the cylinder, so that the exhaust resistance is greatly reduced, and the exhaust is clean; and the late closing of the exhaust valve 13 prolongs the exhaust time, so that the exhaust is clean under the action of the pressure and the inertia force of the exhaust gas.

The early opening and late closing of the engine valve is a key design for improving the efficiency of air intake and exhaust, which can effectively improve the efficiency and efficacy of the engine, in order to give full play to the maximum power of the engine, the overlap angle of the early opening and late closing of the air intake and exhaust valve 13 of a high-speed engine is larger, thus being beneficial to fully utilizing the flow inertia of air flow to increase the air intake amount and the air exhaust amount, leading the air intake to be more sufficient and leading the air exhaust to be smoother, but because the engine is a complex system, any design can not be suitable for the working state of the whole working condition, the exhausted exhaust gas flow basically takes a negative pressure wave as the main part, and in the working condition of the middle and low speed of the engine, because of the difference of the working frequency of the engine, the air exhaust valve 13 is interfered by a primary or secondary positive pressure wave in the valve overlapping period, on one hand, the low-speed performance of the engine is deteriorated, on the other hand, the water in the waste flow is promoted to return to the cylinder again, if the environment temperature is low, the high boiling point component and the water vapor are condensed alternately, the possibility that the water vapor generated by combustion is condensed into water liquid is greatly increased, and the water molecules fall into the cylinder and the piston 11 firstly and permeate into the crankcase through the gap between the piston 11, the piston ring and the cylinder because the specific gravity of the water molecules is greater than that of the oil molecules, so that the emulsifying possibility of the engine oil is increased.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. A motorcycle variable exhaust gas channel exhaust valve device is characterized by comprising a shell (1), an exhaust gas pipe (4), an exhaust pipe (43), a servo motor body (5), a first three-way catalyst (6), a second three-way catalyst (7), a first mesh pipe (10) and a second mesh pipe (9), wherein the first three-way catalyst (6), the second three-way catalyst (7), the first mesh pipe (10) and the second mesh pipe (9) are arranged in the shell (1), the exhaust gas pipe (4), the exhaust pipe (43) and the servo motor body (5) are arranged outside the shell (1), the exhaust gas pipe (4) comprises a first exhaust gas pipe (41) and a second exhaust gas pipe (42), one end of the first exhaust gas pipe (41) extends into the shell (1) and is sequentially connected with the first three-way catalyst (6) and the first mesh pipe (10), and one end of the exhaust pipe (43) extends into the shell (1) and is connected with the first mesh pipe (10); the other end of the first exhaust gas pipe (41) is communicated with one end of the second exhaust gas pipe (42) outside the shell (1), a servo motor body (5) is arranged on the first exhaust gas pipe (41) between the communicated part and the shell (1), and an exhaust valve (51) is arranged in the servo motor body (5); the other end of the second exhaust gas pipe (42) extends into the shell (1) and is sequentially connected with the second three-way catalyst (7) and the second mesh pipe (9).

2. A motorcycle variable exhaust gas passage exhaust valve device according to claim 1, further comprising a third three way catalyst (8), said third three way catalyst (8) being disposed within the housing (1) between the first mesh pipe (10) and the exhaust pipe (43).

3. A motorcycle variable exhaust gas passage exhaust valve device according to claim 1, characterized in that a mesh plate (3) is provided along the inner wall of the housing (1), and a silencing cotton (2) is provided between the mesh plate (3) and the housing (1).

4. A motorcycle variable exhaust gas passage exhaust valve device according to claim 1, characterized in that the housing (1), the exhaust gas pipe (4), the first mesh pipe (10), the second mesh pipe (9) and the exhaust pipe (43) are all made of 304 stainless steel.

5. A motorcycle variable exhaust gas passage exhaust valve device according to claim 3, characterized in that the mesh plate (3) is made of 304 stainless steel.

6. A motorcycle variable exhaust gas passage exhaust valve device according to claim 1, characterized in that the exhaust valve (51) is made of aluminum alloy.

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