Intake pressure stabilizing device and motorcycle

Abstract

The present application relates to an air intake pressure stabilizing device and a motorcycle. The air intake pressure stabilizing device includes: a shell assembly, a filter chamber is provided inside the shell assembly; an isolator, the isolator is arranged in the filter chamber, and the isolator isolates the filter chamber into an inner chamber, a first pressure stabilizing chamber and a second pressure stabilizing chamber; a first air outlet pipe and a second air outlet pipe, the first air outlet pipe is connected to the shell assembly and extends into the inner chamber through the first pressure stabilizing chamber, the side wall of the first air outlet pipe is sealed with the first opening, and the first air outlet pipe is provided with a first vent hole connected to the first pressure stabilizing chamber. Since the isolator is inside the shell assembly, the integration is high, and the internal space of the shell assembly is fully utilized, which is conducive to improving the compactness of the structure and ensuring the overall layout and appearance integrity of the motorcycle. In addition, there is no need to add parts, which is conducive to controlling production costs.

Description

Technical Field

[0001] The present application relates to the technical field of motorcycle engines, and in particular to an air intake pressure stabilizing device and a motorcycle. Background Art

[0002] The engine components of two-wheeled motorcycles and other vehicles primarily consist of the engine and intake system, specifically the engine intake manifold, throttle body, air filter outlet pipe, air filter body, filter element, and air filter intake manifold. During the engine's intake stroke, outside air enters the cylinder through the air filter intake manifold. The engine intake system requires low intake resistance, smooth air flow, and minimal intake noise. The air filter not only filters air but also plays a crucial role in ensuring engine performance and reducing intake noise.

[0003] For multi-cylinder engines, since the air filter outlet pipes corresponding to different cylinders are all located in the same clean air filter chamber, and there is a sequence in the intake time of the two cylinders, the two air filter outlet pipes will affect each other's intake efficiency due to the existence of pressure waves, which will affect the durability of the engine. Traditional technology uses a separately designed independent pressure stabilizing chamber component, which is installed and fastened to the outlet pipe. However, this solution requires a separate pressure stabilizing chamber component for each cylinder, which will significantly increase the number of parts and the production cost of the entire vehicle, which does not meet the production goal of cost reduction. At the same time, the independent pressure stabilizing chamber solution requires additional vehicle space, which will greatly inconvenience the overall layout of the vehicle. Summary of the Invention

[0004] It is necessary to provide an air intake pressure stabilizing device and a motorcycle that can effectively reduce production costs and improve the structural compactness of the air filter.

[0005] The technical solution is as follows: an air intake pressure stabilizing device, which includes: a shell assembly, a filter chamber is provided inside the shell assembly; an isolation member, the isolation member is arranged in the filter chamber, and the isolation member isolates the filter chamber into an inner chamber, a first pressure-stabilizing chamber and a second pressure-stabilizing chamber, the isolation member is respectively provided with a first opening and a second opening, the first pressure-stabilizing chamber is connected to the inner chamber through the first opening, and the second pressure-stabilizing chamber is connected to the inner chamber through the second opening; a first air outlet pipe and a second air outlet pipe, the first air outlet pipe is connected to the shell assembly and extends into the inner chamber through the first pressure-stabilizing chamber, the side wall of the first outlet pipe is sealed with the first opening, and the first outlet pipe is provided with a first vent hole connected to the first pressure-stabilizing chamber; the second outlet pipe is connected to the shell assembly and extends into the inner chamber through the second pressure-stabilizing chamber, the side wall of the second outlet pipe is sealed with the second opening, and the second outlet pipe is provided with a second vent hole connected to the second pressure-stabilizing chamber.

[0006] In the above-mentioned intake pressure stabilizing device, during the assembly process, an isolating member is installed in the shell assembly, isolating the first pressure stabilizing chamber and the second pressure stabilizing chamber from the isolating chamber, and after the first air outlet pipe and the second air outlet pipe are connected to the inner chamber through the first pressure stabilizing chamber and the second pressure stabilizing chamber respectively, the inner chamber can discharge air to the two cylinders respectively. During operation, since the first air outlet pipe and the second air outlet pipe are connected to the first pressure stabilizing chamber and the second pressure stabilizing chamber respectively through the first air vent and the second air vent, the first pressure stabilizing chamber and the second pressure stabilizing chamber can alleviate the pressure fluctuations on the first air outlet pipe and the second air outlet pipe, reduce the degree of mutual influence between the cylinders during the intake process, thereby improving the intake unevenness of the two cylinders and making the work performance of the two cylinders closer. Since the isolating member is inside the shell assembly, the integration is high, and the internal space of the shell assembly is fully utilized, which is conducive to improving the compactness of the structure and ensuring the overall layout and appearance integrity of the motorcycle. In addition, there is no need to increase parts, which is conducive to controlling production costs.

[0007] In one embodiment, the shell assembly includes a first shell and a second shell, the first shell and the second shell are detachably connected to form the filter cavity, and the isolation member is connected to the first shell and / or the second shell.

[0008] In one embodiment, the isolation member includes a first isolation plate and a second isolation plate, the first isolation plate is connected to the inner wall of the filter cavity, and the second isolation plate is connected to the first isolation plate and the inner wall of the filter cavity respectively.

[0009] In one embodiment, the isolation member further includes a first support plate and a second support plate, the first support plate is connected to the first shell, and the first support plate and the first isolation plate cooperate to form the first opening; the second support plate is connected to the second shell, and the second support plate and the first isolation plate cooperate to form the second opening.

[0010] In one embodiment, the inner wall of the first shell is provided with a first clamping portion, the inner wall of the second shell is provided with a second clamping portion, and the first isolation plate is respectively clamped and engaged with the first clamping portion and the second clamping portion.

[0011] In one embodiment, there are more than two first clamping parts, which are spaced apart on the inner wall of the first shell, and the first isolation plate is engaged with the more than two first clamping parts.

[0012] In one embodiment, there are more than two second clamping parts, which are spaced apart on the inner wall of the second shell, and the first isolation plate is engaged with the more than two second clamping parts.

[0013] In one embodiment, the isolation member is further provided with a first oil passage groove and a second oil passage groove, the first pressure stabilizing chamber is connected to the inner cavity through the first oil passage groove, and the second pressure stabilizing chamber is connected to the inner cavity through the second oil passage groove, and both the first oil passage groove and the second oil passage groove are used for passing engine oil.

[0014] In one embodiment, the cavity wall of the first pressure-stabilizing cavity is further provided with a third opening, the first opening is arranged opposite to the third opening, and at least two seals are provided on the first air outlet pipe at intervals, and at least two of the seals are respectively sealed with the inner wall of the first opening and the inner wall of the third opening.

[0015] In one embodiment, the cavity wall of the second pressure stabilizing cavity is further provided with a fourth opening, and at least two seals are spaced apart on the second air outlet pipe, and the at least two seals are respectively sealed with the inner wall of the second opening and the inner wall of the fourth opening.

[0016] In one embodiment, the shell assembly further includes an air intake cavity, which is located in the inner cavity, and the air intake cavity is provided with an air intake cavity and an air inlet connected to the air intake cavity. A filter is provided on the air intake cavity, and the air intake cavity is connected to the inner cavity through the filter. The air intake pressure stabilizing device further includes an air intake pipe, and the air intake pipe is connected to the air intake cavity through the air inlet.

[0017] A motorcycle comprises the air intake pressure stabilizing device described in any one of the above.

[0018] In the above-mentioned motorcycle, during the assembly process, an isolating member is installed in the shell assembly, isolating the first pressure-stabilizing chamber and the second pressure-stabilizing chamber from the isolating chamber. After the first air outlet pipe and the second air outlet pipe are connected to the inner chamber through the first pressure-stabilizing chamber and the second pressure-stabilizing chamber respectively, the inner chamber can discharge air to the two cylinders respectively. During operation, since the first air outlet pipe and the second air outlet pipe are connected to the first pressure-stabilizing chamber and the second pressure-stabilizing chamber through the first air vent and the second air vent respectively, the first pressure-stabilizing chamber and the second pressure-stabilizing chamber can alleviate the pressure fluctuations on the first air outlet pipe and the second air outlet pipe, reduce the degree of mutual influence between the cylinders during the intake process, thereby improving the intake unevenness of the two cylinders and making the work performance of the two cylinders closer. Since the isolating member is inside the shell assembly, it has a high degree of integration and fully utilizes the internal space of the shell assembly, which is conducive to improving the compactness of the structure and ensuring the overall layout and appearance integrity of the motorcycle. In addition, there is no need to increase parts, which is conducive to controlling production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 Schematic diagram of the internal structure of the intake pressure stabilizing device described in one embodiment.

[0022] Figure 2 Schematic diagram of the internal structure of the intake pressure stabilizing device described in one embodiment from another perspective.

[0023] Figure 3 Schematic diagram of the structure of the first shell described in one embodiment.

[0024] Figure 4 Schematic diagram of the structure of the second shell described in one embodiment.

[0025] Figure 5 Schematic diagram of the relative positions of the isolation element, the first air outlet pipe and the second air outlet pipe described in one embodiment.

[0026] Figure 6 Schematic diagram of the structure of the isolation element described in one embodiment.

[0027] Description of reference numerals:

[0028] 100. Air intake pressure stabilizing device; 110. Shell assembly; 111. Filter chamber; 1111. First pressure stabilizing chamber; 1112. Second pressure stabilizing chamber; 1113. Inner chamber; 112. First shell; 1121. First clamping portion; 113. Second shell; 1131. Second clamping portion; 114. Third opening; 115. Fourth opening; 120. Isolator; 121. First opening; 122. Second opening; 123. First isolation plate; 124. Second isolation plate; 125. First support plate; 126. Second support plate; 127. First oil trough; 128. Second oil trough; 130. First air outlet pipe; 131. First air vent; 140. Second air outlet pipe; 141. Second air vent; 150. Sealing element; 160. Air intake chamber; 161. Filter element; 162. Air intake pipe. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0032] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0033] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0035] See also Figure 1 、 Figure 2 and Figure 5 , Figure 1 Schematic diagram of the internal structure of the intake pressure stabilizing device 100 described in one embodiment of the present application is shown; Figure 2 A schematic diagram showing the internal structure of the intake pressure stabilizing device 100 according to an embodiment of the present application from another perspective is shown; Figure 5 A schematic diagram of the relative positions of the isolating member 120, the first air outlet pipe 130, and the second air outlet pipe 140 described in one embodiment of the present application is shown; an embodiment of the present application provides an air intake pressure stabilizing device 100, comprising: a housing assembly 110, an isolating member 120, a first air outlet pipe 130, and a second air outlet pipe 140. A filter chamber 111 is provided inside the housing assembly 110, and the isolating member 120 is disposed in the filter chamber 111, and the isolating member 120 isolates the filter chamber 111 into an inner chamber 1113, a first pressure stabilizing chamber 1111, and a second pressure stabilizing chamber 1112. The isolating member 120 is respectively provided with a first opening 121 and a second opening 122, the first pressure stabilizing chamber 1111 being connected to the inner chamber 1113 through the first opening 121, and the second pressure stabilizing chamber 1112 being connected to the inner chamber 1113 through the second opening 122. The first air outlet pipe 130 is connected to the housing assembly 110 and extends through the first pressure-stabilizing chamber 1111 into the inner chamber 1113. The sidewall of the first air outlet pipe 130 is sealed with the first opening 121, and the first air outlet pipe 130 defines a first vent hole 131 that communicates with the first pressure-stabilizing chamber 1111. The second air outlet pipe 140 is connected to the housing assembly 110 and extends through the second pressure-stabilizing chamber 1112 into the inner chamber 1113. The sidewall of the second air outlet pipe 140 is sealed with the second opening 122, and the second air outlet pipe 140 defines a second vent hole 141 that communicates with the second pressure-stabilizing chamber 1112.

[0036] During the assembly process of the above-mentioned intake pressure stabilizing device 100, the isolation member 120 is installed in the housing assembly 110, isolating the first pressure stabilizing chamber 1111 and the second pressure stabilizing chamber 1112 from the isolation chamber. After the first outlet pipe 130 and the second outlet pipe 140 are connected to the inner chamber 1113 through the first pressure stabilizing chamber 1111 and the second pressure stabilizing chamber 1112 respectively, the inner chamber 1113 can discharge air to the two cylinders respectively. During operation, since the first outlet pipe 130 and the second outlet pipe 140 are connected to the first pressure stabilizing chamber 1111 and the second pressure stabilizing chamber 1112 through the first vent hole 131 and the second vent hole 141 respectively, the first pressure stabilizing chamber 1111 and the second pressure stabilizing chamber 1112 can alleviate the pressure fluctuations on the first outlet pipe 130 and the second outlet pipe 140, reduce the degree of mutual influence between the cylinders during the intake process, thereby improving the intake unevenness of the two cylinders and making the working performance of the two cylinders closer. Because the isolator 120 is located within the housing assembly 110, it boasts a high level of integration, fully utilizing the internal space of the housing assembly 110. This improves structural compactness and ensures the integrity of the motorcycle's overall layout and appearance. Furthermore, the absence of additional components helps control production costs. Furthermore, this pressure-stabilizing chamber solution also functions as a Helmholtz resonator, effectively reducing suction noise within a specific frequency range.

[0037] See also Figure 3 and Figure 4 , Figure 3 1 shows a schematic structural diagram of the first housing 112 according to an embodiment of the present application; Figure 4 A schematic structural diagram of the second housing 113 described in one embodiment of the present application is shown. In one embodiment, the housing assembly 110 includes a first housing 112 and a second housing 113. The first housing 112 and the second housing 113 are detachably connected and enclose a filter chamber 111. The isolation member 120 is connected to the first housing 112 and / or the second housing 113. This facilitates assembly, reduces production costs, and simplifies maintenance. When the first pressure-stabilizing chamber 1111 and the second pressure-stabilizing chamber 1112 require maintenance, the first housing 112 and the second housing 113 can be disassembled, thereby improving maintenance convenience.

[0038] It should be noted here that the connection between the isolation member 120 and the first shell 112 and / or the second shell 113 should be understood as the isolation member 120 being set only on the inner wall of the first shell 112, or only on the inner wall of the second shell 113, or the isolation member 120 being connected to both the first shell 112 and the second shell 113.

[0039] Optionally, the isolation member 120 may be a plate structure, a cavity structure, a shell structure, a cylinder structure or other types of structures.

[0040] See also Figure 6 , Figure 6 A schematic diagram of the structure of the isolation member 120 described in one embodiment of the present application is shown. In one embodiment, the isolation member 120 includes a first isolation plate 123 and a second isolation plate 124. The first isolation plate 123 is connected to the inner wall of the filter chamber 111, and the second isolation plate 124 is connected to the first isolation plate 123 and the inner wall of the filter chamber 111, respectively. For example, the first isolation plate 123 and the second isolation plate 124 are arranged vertically to form a "T" shape. After being connected to the lower shell, two independent rectangular first and second pressure-stabilizing chambers 1111 and 1112 are formed. This structure is simple, easy to install and process, and does not require the re-manufacturing of the casting mold, which helps to reduce production costs.

[0041] In other embodiments, the shapes of the first pressure-stabilizing chamber 1111 and the second pressure-stabilizing chamber 1112 may also be circular, triangular, regular polygonal or other irregular shapes, which are not specifically limited here.

[0042] Optionally, the first isolation plate 123 and the second isolation plate 124 can be connected by welding, plugging, threading, snapping, bonding, magnetic connection or other connection methods. Alternatively, the first isolation plate 123 and the second isolation plate 124 are an integrally formed structure.

[0043] Specifically in this embodiment, please refer to Figure 2 The first isolation plate 123 and the second isolation plate 124 are integrally formed, which helps to ensure the structural stability of the isolation member 120.

[0044] Unlike this embodiment, in other embodiments, the first isolation plate 123 is provided with two or more connecting portions, and the two or more second isolation plates 124 are plugged into and mated with the first isolation plate 123 via the connecting portions. This facilitates setting the number of pressure stabilizing chambers suitable for a multi-cylinder engine, thereby adapting to different motorcycle and engine models.

[0045] In one embodiment, see Figure 5The isolation member 120 further includes a first support plate 125 and a second support plate 126. The first support plate 125 is connected to the first housing 112 and cooperates with the first isolation plate 123 to form a first opening 121. The second support plate 126 is connected to the second housing 113 and cooperates with the first isolation plate 123 to form a second opening 122. Specifically, the first isolation plate 123 is provided with two "U"-shaped grooves, and the first support plate 125 and the second support plate 126 are provided with arc-shaped support portions. The first support plate 125 and the second support plate 126 respectively form two circular first openings 121 and second openings 122 with the two "U"-shaped grooves, thereby achieving a sealed fit with the first and second outlet pipes 130 and 140, ensuring that the first and second pressure-stabilizing chambers 1111 and 1112 are not connected to the inner chamber 1113 after assembly, thereby achieving a pressure stabilization effect. The combined installation method facilitates the installation of the first air outlet pipe 130 and the second air outlet pipe 140 , thereby improving maintenance convenience.

[0046] In other embodiments, according to the volume requirements of different pressure stabilizing cavities, the connection position of the second support plate 126 on the first support plate 125 can be changed to adjust the proportional distribution of the volumes of the two pressure stabilizing cavities, thereby meeting the resonance requirements of different speed working conditions.

[0047] Furthermore, the specific number of pressure-stabilizing chambers corresponds to the number of cylinders of the engine. The isolation member 120 can also isolate a third pressure-stabilizing chamber, a fourth pressure-stabilizing chamber, etc. By changing the structure of the isolation member 120 to form different numbers of pressure-stabilizing chambers, it is beneficial to improve the design freedom.

[0048] Optionally, the first isolation plate 125 and the second isolation plate 126 can be connected to the inner wall of the filter chamber 111 by bonding, clamping, bolting, threading, plugging, riveting, magnetic connection or other connection methods.

[0049] In one embodiment, see Figure 3 and Figure 4 The inner wall of the first shell 112 is provided with a first clamping portion 1121, and the inner wall of the second shell 113 is provided with a second clamping portion 1131. The first isolation plate 123 is respectively engaged with the first clamping portion 1121 and the second clamping portion 1131. For example, the first clamping portion 1121 and the second clamping portion 1131 are both clamping grooves. Therefore, the clamping method is simple to assemble, has high precision, strong reliability, and is easy to maintain and disassemble, which is conducive to improving assembly efficiency and connection stability. This embodiment only provides a specific installation method for the first isolation plate 123 in the filter cavity 111, but is not limited to this.

[0050] Further, see Figure 3 and Figure 4There are two or more first clamping portions 1121, which are spaced apart on the inner wall of the first housing 112. The first isolation plate 123 engages with the two or more first clamping portions 1121. In this way, the first isolation plate 123 is fixed at different positions by the two or more first clamping portions 1121, which helps to improve the connection stability between the first isolation plate 123 and the first housing 112 and prevent deformation.

[0051] In one embodiment, see Figure 3 and Figure 4 There are two or more second clamping portions 1131, which are spaced apart on the inner wall of the second housing 113. The first isolation plate 123 engages with the two or more second clamping portions 1131. In this way, the two or more second clamping portions 1131 secure the first isolation plate 123 at different positions, further improving the connection stability between the first isolation plate 123 and the second housing 113 and preventing deformation.

[0052] Furthermore, the second isolation plate 124 can also be fixed on the cavity wall of the filter cavity 111 by being engaged with the engaging groove.

[0053] In one embodiment, see Figure 5 and Figure 6 Isolator 120 also defines a first oil passage groove 127 and a second oil passage groove 128. The first pressure-stabilizing chamber 1111 communicates with the inner chamber 1113 via the first oil passage groove 127, while the second pressure-stabilizing chamber 1112 communicates with the inner chamber 1113 via the second oil passage groove 128. Both the first oil passage groove 127 and the second oil passage groove 128 are used to pass engine oil. During air filter operation, engine oil vapor can escape into the air filter through the crankcase ventilation system. The provision of the first oil passage groove 127 and the second oil passage groove 128 prevents oil accumulation in each pressure-stabilizing chamber, ensuring cleanliness within the chambers.

[0054] In one embodiment, see Figure 3 、 Figure 4 and Figure 5 The wall of the first pressure-stabilizing chamber 1111 further defines a third opening 114. The first opening 121 and the third opening 114 are disposed opposite each other. At least two seals 150 are spaced apart on the first air outlet pipe 130, each of which seals against the inner wall of the first opening 121 and the inner wall of the third opening 114. Thus, the first air outlet pipe 130, through the seals 150 on the pipe wall, seals against the first opening 121 and the third opening 114, respectively. This helps ensure that the inner cavity 1113 and the first pressure-stabilizing chamber 1111 are not connected to each other, thereby improving the operational reliability of the first working chamber.

[0055] In one embodiment, see Figure 3 、 Figure 4 and Figure 5 The wall of the second pressure-stabilizing chamber 1112 further defines a fourth opening 115. At least two seals 150 are spaced apart on the second air outlet pipe 140, each of which seals against the inner wall of the second opening 122 and the inner wall of the fourth opening 115. Thus, the second air outlet pipe 140, through the seals 150 on the pipe wall, seals against the second opening 122 and the fourth opening 115, respectively. This helps ensure that the inner chamber 1113 and the second pressure-stabilizing chamber 1112 are not connected to each other, thereby improving the operational reliability of the second working chamber.

[0056] Optionally, the sealing member 150 may be a sealing ring, a sealant, a sealing gasket or other sealing materials or sealing structures.

[0057] Specifically, the sealing member 150 is a rubber sealing ring. Therefore, it is easy to assemble, has strong sealing performance, and is low in cost, which helps to control the overall cost of the intake pressure stabilizing device 100. This embodiment only provides a specific implementation of the sealing member 150, but is not limited thereto.

[0058] In one embodiment, see Figure 1 The housing assembly 110 further includes an air intake cavity 160, which is located within the inner cavity 1113 and defines an air intake chamber and an air inlet connected thereto. A filter 161 is provided on the air intake cavity 160, which communicates with the inner cavity 1113 via the filter 161. The air intake pressure stabilizing device 100 further includes an air intake pipe 162, which communicates with the air intake chamber via the air inlet. Therefore, the air intake cavity 160 disposed within the inner cavity 1113 helps reduce the overall volume of the housing assembly 110, reduces the space occupied by the air intake pressure stabilizing device 100 on the vehicle, facilitates modification to existing vehicle models, and helps improve the overall structural stability of the housing assembly 110.

[0059] In one embodiment, a motorcycle (not shown) includes any one of the above-mentioned intake pressure stabilizing devices 100 .

[0060] During assembly of the motorcycle, the isolator 120 is installed within the housing assembly 110, isolating the first and second pressure-stabilizing chambers 1111 and 1112 from the isolation chamber. After the first and second air outlet pipes 130 and 140 are connected to the inner chamber 1113 through the first and second pressure-stabilizing chambers 1111 and 1112, respectively, the inner chamber 1113 can discharge air to the two cylinders. During operation, since the first and second air outlet pipes 130 and 140 are connected to the first and second pressure-stabilizing chambers 1111 and 1112 through the first and second air vents 131 and 141, respectively, the first and second pressure-stabilizing chambers 1111 and 1112 can alleviate pressure fluctuations on the first and second air outlet pipes 130 and 140, reducing the degree of mutual influence between the cylinders during the intake process, thereby improving the intake unevenness of the two cylinders and making the power performance of the two cylinders more similar. Since the spacer 120 is located inside the housing assembly 110, it is highly integrated and fully utilizes the internal space of the housing assembly 110, thereby improving the compactness of the structure and ensuring the integrity of the overall layout and appearance of the motorcycle. Furthermore, no additional parts are required, which helps control production costs.

[0061] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An air intake pressure stabilizing device, characterized in that: The intake pressure stabilizing device comprises: A housing assembly, wherein a filter cavity is provided inside the housing assembly; an isolator disposed in the filter cavity and isolating the filter cavity into an inner cavity, a first pressure-stabilizing cavity, and a second pressure-stabilizing cavity. The isolator is provided with a first opening and a second opening, respectively. The first pressure-stabilizing cavity is connected to the inner cavity through the first opening, and the second pressure-stabilizing cavity is connected to the inner cavity through the second opening. a first air outlet pipe and a second air outlet pipe, wherein the first air outlet pipe is connected to the housing assembly and extends into the inner cavity through the first pressure-stabilizing chamber, the side wall of the first air outlet pipe is in sealing cooperation with the first opening, and the first air outlet pipe is provided with a first air vent connected to the first pressure-stabilizing chamber; the second air outlet pipe is connected to the housing assembly and extends into the inner cavity through the second pressure-stabilizing chamber, the side wall of the second air outlet pipe is in sealing cooperation with the second opening, and the second air outlet pipe is provided with a second air vent connected to the second pressure-stabilizing chamber; The isolation member is also provided with a first oil passage groove and a second oil passage groove. The first pressure stabilizing chamber is connected to the inner cavity through the first oil passage groove, and the second pressure stabilizing chamber is connected to the inner cavity through the second oil passage groove. The first oil passage groove and the second oil passage groove are both used for passing engine oil.

2. The intake pressure stabilizing device according to claim 1, characterized in that: The housing assembly includes a first housing and a second housing. The first housing and the second housing are detachably connected to form the filter cavity. The isolation element is connected to the first housing and / or the second housing.

3. The intake pressure stabilizing device according to claim 2, characterized in that: The isolation member includes a first isolation plate and a second isolation plate. The first isolation plate is connected to the inner wall of the filter cavity, and the second isolation plate is connected to the first isolation plate and the inner wall of the filter cavity respectively.

4. The intake pressure stabilizing device according to claim 3, characterized in that: The isolation member also includes a first support plate and a second support plate, the first support plate is connected to the first shell, and the first support plate and the first isolation plate cooperate to form the first opening; the second support plate is connected to the second shell, and the second support plate and the first isolation plate cooperate to form the second opening.

5. The intake pressure stabilizing device according to claim 4, characterized in that: The inner wall of the first shell is provided with a first clamping portion, the inner wall of the second shell is provided with a second clamping portion, and the first isolation plate is respectively clamped and matched with the first clamping portion and the second clamping portion.

6. The intake pressure stabilizing device according to claim 5, characterized in that: There are two or more first clamping parts, and the two or more first clamping parts are spaced apart on the inner wall of the first shell, and the first isolation plate is engaged with the two or more first clamping parts; and / or, There are more than two second clamping parts, and the two or more second clamping parts are arranged at intervals on the inner wall of the second shell. The first isolation plate is clamped and matched with the two or more second clamping parts.

7. The intake pressure stabilizing device according to claim 1, characterized in that: The cavity wall of the first pressure stabilizing cavity is further provided with a third opening, the first opening is arranged opposite to the third opening, at least two seals are provided on the first air outlet pipe at intervals, and at least two of the seals are respectively sealed with the inner wall of the first opening and the inner wall of the third opening.

8. The intake pressure stabilizing device according to any one of claims 1 to 7, characterized in that: The cavity wall of the second pressure stabilizing cavity is further provided with a fourth opening. The second air outlet pipe is provided with at least two sealing members at intervals. The at least two sealing members are respectively sealed with the inner wall of the second opening and the inner wall of the fourth opening.

9. The intake pressure stabilizing device according to any one of claims 1 to 7, characterized in that: The shell assembly also includes an air intake cavity, which is located in the inner cavity, and the air intake cavity is provided with an air intake cavity and an air inlet connected to the air intake cavity. A filter is provided on the air intake cavity, and the air intake cavity is connected to the inner cavity through the filter. The air intake pressure stabilizing device also includes an air intake pipe, and the air intake pipe is connected to the air intake cavity through the air inlet.

10. A motorcycle, characterized in that: The motorcycle comprises the intake pressure stabilizing device according to any one of claims 1 to 9.

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