Air intake valve assembly, air intake pipe device, engine assembly and vehicle

Abstract

An air intake valve assembly (110) for an air intake pipe device (100) of an engine. The air intake valve assembly comprises: a valve housing (111), wherein the valve housing comprises a valve port (111a) passing through the valve housing in its extension direction, and an accommodating groove (121) is formed in the inner wall of the valve housing; and a valve (113) rotatably connected to the valve port about the rotation axis (AX), so that the valve can be selectively rotated to either a closed position where the valve port is closed and an open position where the valve port is opened. When the valve is in the open position, the valve is accommodated in the accommodating groove. The air intake valve assembly achieves convenient opening and closing of the air intake pipe device. Also provided are an air intake pipe device and a vehicle.

Description

Intake valve assembly, intake manifold assembly, engine assembly and vehicle

[0001] This application claims priority to Chinese patent application No. 2024211999297, filed on May 28, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of vehicles, and more specifically to an intake valve assembly, an intake manifold device, an engine assembly, and a vehicle. Background Technology

[0003] Related technology provides a sealed oxygen supply system for the front of the main intake manifold of an internal combustion engine. This system includes a first intake manifold, a left port of the intake manifold, a right port of the intake manifold, an intake manifold controller, a second intake manifold, an external dust filter, and an air filter for the engine. One end of the first intake manifold is connected to the outside. The other end of the first intake manifold is connected to the left port of the intake manifold. The right port of the intake manifold is connected to one end of the second intake manifold. The other end of the second intake manifold is directly or indirectly connected to the engine via an air filter. The left and right ports of the intake manifold are positioned opposite each other. An external dust filter is installed outside the left and right ports of the intake manifold. When the engine is submerged in water, the intake manifold controller controls the left and right ports of the intake manifold to seal and block the water source.

[0004] However, when the vehicle is not submerged in water, the air intake of the ventilation system will be affected by the left end of the air intake pipe, resulting in a reduced air intake. Technical issues

[0005] The purpose of this application is to provide an intake valve assembly, an intake manifold device, an engine assembly, and a vehicle to improve the existing problem that the intake volume of the air exchange system is affected by the left port of the intake manifold when the vehicle is not in water, resulting in a reduced intake volume. Technical solutions

[0006] The content of this application introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This content section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0007] To at least partially solve the above problems, a first aspect of this application provides an intake valve assembly for an engine intake manifold, the intake valve assembly comprising:

[0008] A valve housing, the valve housing including a valve hole extending through it along its own extension direction, and an accommodating groove formed on the inner wall of the valve housing; and

[0009] A valve rotatably connected to the valve orifice about a rotation axis, so as to be selectively rotated to either a closed position that closes the valve orifice or an open position that opens the valve orifice, wherein when the valve is in the open position, the valve is received in the receiving groove.

[0010] According to the intake valve assembly of the first aspect of this application, when the intake valve assembly is applied to the intake manifold of the engine, the intake manifold can be easily closed and opened. The valve in the closed position can prevent water from flowing into the engine in a wet environment. Furthermore, because the valve body is provided with a receiving groove, the valve in the open position can be accommodated, reducing the space occupied by the valve in the inner cavity of the valve body, thereby reducing the impact on the intake air volume and contributing to a more stable air supply to the engine. The structure of this application is simpler, and while allowing convenient adjustment of the open / closed state of the intake manifold, it reduces the impact on the intake air volume.

[0011] A second aspect of this application provides an intake manifold device, which includes the aforementioned intake valve assembly.

[0012] According to the intake pipe device of the second aspect of this application, by applying the above-mentioned intake valve assembly, the structure is simpler and more compact, and the opening and closing state of the intake pipe device can be easily adjusted while reducing the impact on the intake volume.

[0013] A third aspect of this application provides an engine assembly including an engine and the aforementioned intake manifold device connected to the engine.

[0014] According to the third aspect of this application, the engine assembly constructed with the aforementioned intake manifold device can effectively prevent water ingress in wading environments, while also ensuring the engine's air intake volume. Furthermore, the structure is simpler and more compact, thereby contributing to improved engine assembly performance.

[0015] The fourth aspect of this application provides a vehicle, which includes the aforementioned engine assembly.

[0016] According to the vehicle of the fourth aspect of this application, by applying the above-described engine assembly, the waterproof performance of the vehicle in a water-wading environment can be improved, thereby better protecting the engine. Attached Figure Description

[0017] The following drawings, illustrating embodiments of this application, are incorporated herein by reference and are used to understand this application. The drawings illustrate embodiments of this application and their descriptions, serving to explain the principles of this application. In the drawings,

[0018] Figure 1 is a perspective view of an intake pipe device according to one embodiment of this application;

[0019] Figure 2 is a cross-sectional view taken along line AA in Figure 1;

[0020] Figure 3 is a cross-sectional view of the air intake pipe device shown in Figure 1;

[0021] Figure 4 is a cross-sectional view of the intake valve assembly shown in Figures 2 and 3;

[0022] Figure 5 is a cross-sectional view of the air intake pipe device shown in Figure 1;

[0023] Figure 6 is another cross-sectional view of the intake pipe device shown in Figure 1;

[0024] Figure 7 is a block diagram of an engine assembly according to one embodiment of this application; and

[0025] Figure 8 is a block diagram of a vehicle according to one embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 100: Intake pipe assembly; 110: Intake valve assembly; 111: Valve housing; 111a: Valve hole; 111b: Intake end; 111c: Outtake end; 111d: Limiting part; 111e: First sealing surface; 111f: Second sealing surface; 112: Rotating shaft; 113: Valve; 113a: Stop protrusion; 113b: First end; 113c: Second end; 114: First sealing ring; 115: Second sealing ring; 116: Drive motor; 116a: Motor shaft; 120: First intake pipe; 121: Receiving groove; 122: Drain hole; 130: Second intake pipe; D: Extension direction; AX: Rotation axis; 140: Sealing ring; 200: Engine assembly; 201: Engine; 300: Vehicle. Embodiments of the present invention

[0027] In the following description, numerous specific details are set forth to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that embodiments of this application may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this application.

[0028] To fully understand the embodiments of this application, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this application is not limited to the specific details familiar to those skilled in the art.

[0029] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the scope of this application. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0030] The ordinal numbers such as "first" and "second" used in this application are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of a "second component," and the term "second component" does not imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used in this application are for illustrative purposes only and are not intended to be limiting.

[0031] The terms “parallel” / “perpendicular” and similar expressions used in this application include absolute parallel / perpendicular relationships and approximately parallel / perpendicular relationships (e.g., relationships that differ from absolute parallel / perpendicular relationships by a range of -5° to +5°), and have equivalent effects.

[0032] The specific embodiments of this application will be described in more detail below with reference to the accompanying drawings, which illustrate representative embodiments of this application and are not intended to limit this application.

[0033] This application provides an intake valve assembly, an intake manifold device, an engine assembly, and a vehicle. The intake valve assembly is installed on the intake manifold device to regulate the intake state of the intake manifold device, i.e., to regulate the open and closed states of the intake manifold device. The engine assembly includes an engine, an intake manifold device, and an exhaust manifold device. The engine's intake section is connected to the intake manifold device. The engine's exhaust section is connected to the exhaust manifold device. The vehicle described herein can be used with the aforementioned engine assembly. The vehicle can be an off-road vehicle, or other conventional vehicles, hybrid vehicles, or new energy vehicles.

[0034] The intake valve assembly, intake manifold device, engine assembly and vehicle according to this application will be described in detail below with reference to Figures 1 to 6.

[0035] As shown in Figures 1 to 6, this application provides an intake valve assembly 110. The intake valve assembly 110 is used in an intake manifold assembly 100 of an engine. The intake valve assembly 110 may include a valve housing 111 and a valve 113. The valve housing 111 may include a valve hole 111a extending through it in its extending direction D. When the intake valve assembly 110 is installed in the intake manifold assembly 100, the extending direction D of the valve housing 111 is aligned with the centerline of the intake manifold assembly 100. The inner wall of the valve housing 111 has a receiving groove 121. The valve 113 is rotatably connected to the valve hole 111a about a rotation axis AX, so that the valve 113 can be selectively rotated to a closed position (as shown by the solid line in Figure 2, the dashed line in Figure 3, the solid line in Figure 4, and Figure 5) and an open position (as shown by the dashed line in Figure 2, the solid line in Figure 3, the dashed line in Figure 4, and Figure 5). The valve 113, in the open position, is received in the receiving groove 121. In other words, when the valve 113 is in the open position, the valve 113 is received in the receiving groove 121. This can be understood as the valve 113 being completely received in the receiving groove 121. Alternatively, it can be understood as the valve 113 being partially received in the receiving groove 121.

[0036] According to the intake valve assembly 110 of this application, when the intake valve assembly 110 is applied to the intake manifold device 100 of the engine, the intake manifold device 100 can be easily closed and opened. The valve 113, in the closed position, can prevent water from flowing into the engine in a wading environment. Furthermore, since the valve housing 111 is provided with a receiving groove 121, the valve 113 in the open position can be accommodated, reducing the space occupied by the valve 113 within the inner cavity of the valve housing 111, thereby reducing the impact on the intake air volume and contributing to a more stable air supply to the engine. The structure of this application is simpler, and while conveniently adjusting the open / closed state of the intake manifold device 100, it reduces the impact on the intake air volume.

[0037] As shown in Figures 2 to 5, for example, valve housing 111 has an inlet end 111b and an outlet end 111c extending along its own direction D. Valve 113 has a first end 113b and a second end 113c opposite to each other. The axis of rotation AX is located at the first end 113b. When valve 113 is in the open position, the second end 113c is located on the side of the axis of rotation AX closer to the inlet end 111b. It can be understood that valve 113 moves to the open position by rotating towards the inlet end 111b. Similarly, valve 113 moves to the closed position by rotating towards the outlet end 111c. This allows valve 113 to be more effectively prevented from opening due to water pressure when it is in the closed position. That is, valve 113 in the closed position can be more stably maintained in the closed position under hydraulic action in a water-wading environment, thereby more reliably preventing water from flowing into the engine, and thus achieving the effect of blocking water flow. When the valve is in a wading state, water flows in from the air inlet 111b of the valve body 111. At this time, if the valve 113 is in the closed position, the hydraulic force of the water is applied to the valve 113 from the air inlet 111b towards the air outlet 111c. This can keep the valve 113 in the closed position more stably, which is conducive to more reliably blocking the water source.

[0038] Referring to Figures 2 to 5, the receiving groove 121 is located on the side of the rotation axis AX closer to the air inlet end 111b in the extending direction D of the valve body 111. This can accommodate application scenarios where the valve 113 rotates towards the air inlet end 111b to switch to the open position.

[0039] Referring to Figures 2 to 4, optionally, a stop protrusion 113a is formed on one end face of the valve 113 along its own axial direction. The stop protrusion 113a faces the air inlet end 111b when the valve 113 is in the closed position. The stop protrusion 113a is used to abut against the inner surface of the receiving groove 121 during the movement of the valve 113 to the open position or when it is in the open position, so as to limit the valve 113 from continuing to move away from the closed position relative to the valve body 111. At the same time, it also helps to reduce the contact area between the valve 113 and the inner surface of the receiving groove 121, thereby making the resistance of the valve 113 moving out of the receiving groove 121 smaller.

[0040] For example, the intake valve assembly 110 may include a sealing ring 140. The sealing ring 140 is connected to the valve 113 and is continuously arranged along the circumference of the valve 113. The sealing ring 140 is adapted to seal against the inner wall of the valve housing 111 when the valve 113 is in the closed position, thereby blocking the intake end 111b and the outlet end 111c. By providing the sealing ring 140, a seal can be achieved between the valve 113 and the valve housing 111 when the valve 113 is in the closed position, thereby preventing water from passing through the gap between the valve 113 and the valve housing 111.

[0041] In one example, the inner wall of the valve housing 111 may include a first sealing surface 111e. The first sealing surface 111e extends circumferentially along the valve housing 111. The first sealing surface 111e intersects the extending direction D of the valve housing 111. The intake valve assembly 110 may include a first sealing ring 114 (included in the aforementioned sealing ring 140). The first sealing ring 114 is axially connected to the end face of the valve 113. The first sealing ring 114 is adapted to seal against the first sealing surface 111e when the valve 113 is in the closed position. By providing the first sealing surface 111e and the first sealing ring 114, the gap between the valve 113 and the valve housing 111 can be sealed axially along the valve 113 when the valve 113 is in the closed position. Here, axial direction can also be understood as the thickness direction of the valve 113.

[0042] In another example, the inner wall of the valve housing 111 may include a second sealing surface 111f. The second sealing surface 111f extends circumferentially along the valve housing 111. The diameter of the second sealing surface 111f remains constant or increases in a direction parallel to the extension direction D of the valve housing 111 and near the intake end 111b. The intake valve assembly 110 may include a second sealing ring 115 (included in the aforementioned sealing ring 140). The second sealing ring 115 is connected to the outer peripheral surface of the valve 113. The second sealing ring 115 is adapted to seal against the second sealing surface 111f when the valve 113 is in the closed position. By providing the second sealing surface 111f and the second sealing ring 115, the gap between the valve 113 and the valve housing 111 can be sealed radially along the valve 113 when the valve 113 is in the closed position. Here, radial direction is perpendicular to the aforementioned axial direction.

[0043] In the examples shown in Figures 2 to 4, the inner wall of the valve housing 111 is provided with a first sealing surface 111e and a second sealing surface 111f. A first sealing ring 114 and a second sealing ring 115 are arranged intersectingly. The first sealing ring 114 intersects the extending direction D of the valve housing 111. The diameter of the second sealing surface 111f remains constant or increases in a direction parallel to the extending direction D of the valve housing 111 and near the intake end 111b. The sealing rings may include a first sealing ring 114 and a second sealing ring 115. The first sealing ring 114 is axially connected to the end face of the valve 113. The first sealing ring 114 is adapted to seal against the first sealing surface 111e when the valve 113 is in the closed position. The second sealing ring 115 is connected to the outer peripheral surface of the valve 113. The second sealing ring 115 is adapted to seal against the second sealing surface 111f when the valve 113 is in the closed position. By providing a first sealing surface 111e and a first sealing ring 114, the gap between the valve 113 and the valve body 111 can be sealed along the axial direction of the valve 113 when the valve 113 is in the closed position. Here, the axial direction can also be understood as the thickness direction of the valve 113. By providing a second sealing surface 111f and a second sealing ring 115, the gap between the valve 113 and the valve body 111 can be sealed along the radial direction of the valve 113 when the valve 113 is in the closed position. Here, the radial direction is perpendicular to the aforementioned axial direction. By providing two sealing rings, the sealing performance can be improved, thereby achieving better waterproofing and water-blocking effects. Both the first sealing surface 111e and the second sealing surface 111f are annular surfaces, and the first sealing surface 111e is connected to the second sealing surface 111f. The inner diameter of the first sealing surface 111e is smaller than the inner diameter of the second sealing surface 111f. The outer diameter of the first sealing surface 111e can be the same as the inner diameter of one end of the second sealing surface 111f.

[0044] Referring to Figures 2 to 4, for example, a limiting portion 111d is formed on the inner wall of the valve housing 111. The cross-section of the limiting portion 111d perpendicular to the extending direction D of the valve housing 111 decreases in the direction near the intake end 111b. The first sealing surface 111e is located in the limiting portion 111d.

[0045] Referring to Figures 2 to 6, the intake valve assembly 110 may further include a rotating shaft 112 and a drive motor 116. The rotating shaft 112 is rotatably disposed within the valve housing 111 about a rotation axis AX. The axis of the rotating shaft 112 is parallel to or collinear with the rotation axis AX. The rotating shaft 112 is connected to the valve 113. The drive motor 116 is connected to the valve housing 111. The drive motor 116 may include a motor shaft 116a. The motor shaft 116a of the drive motor 116 is driveably connected to the rotating shaft 112 to drive the rotating shaft 112 to rotate. By connecting the drive motor 116 to the rotating shaft 112, and the rotating shaft 112 to the valve 113, when the drive motor 116 is started, the motor shaft 116a of the drive motor 116 can drive the rotating shaft 112 to rotate, thereby driving the valve 113 to rotate, thus changing the position of the valve 113.

[0046] Referring to Figures 2 and 3, for example, the motor shaft 116a and the rotation shaft 112 of the drive motor 116 are coaxial. By arranging the motor shaft 116a and the rotation shaft 112 of the drive motor 116 coaxially, the space occupied in the extending direction D of the valve housing 111 can be reduced.

[0047] Optionally, the motor shaft 116a of the drive motor 116 can be connected to the rotating shaft 112 via a spline. This helps to improve the transmission efficiency between the motor shaft 116a of the drive motor 116 and the rotating shaft 112. It also helps to prevent the rotating shaft 112 from vibrating or shaking when the drive motor 116 housing is fixed to the valve housing 111.

[0048] Furthermore, the valve housing 111 may include a mounting hole (not shown) adapted for the rotating shaft 112 to pass through. The mounting hole communicates with the valve port 111a and the outside. The intake valve assembly 110 may also include a third sealing ring. The third sealing ring is fitted over the outside of the rotating shaft 112 and is located in the mounting hole. The third sealing ring is adapted to seal the gap between the rotating shaft 112 and the wall of the mounting hole. By providing a third sealing ring between the rotating shaft 112 and the mounting hole, the airtightness between the rotating shaft 112 and the mounting hole is improved.

[0049] Referring to Figures 1 to 6, this application also provides an intake pipe device 100, which includes the above-described intake valve assembly 110.

[0050] According to the intake pipe device 100 of this application, by applying the above-mentioned intake valve assembly 110, the structure is simpler and more compact, and while the opening and closing state of the intake pipe device 100 can be easily adjusted, the impact on the intake volume is reduced.

[0051] Referring again to Figures 1 through 6, for example, the intake valve assembly 110 may include an intake end 111b and an outlet end 111c. The intake pipe assembly 100 may include a first intake pipe 120 and a second intake pipe 130. One end of the first intake pipe 120 is sealed to the intake end 111b. The other end of the first intake pipe 120 is open to the outside. One end of the second intake pipe 130 is sealed to the outlet end 111c. The other end of the second intake pipe 130 is adapted to be directly or indirectly connected to the engine. During intake, gas flows sequentially through the first intake pipe 120, the intake end 111b of the intake valve assembly 110, the outlet end 111c of the intake valve assembly 110, and the second intake pipe 130 to the engine. When the valve 113 is in the closed position, the valve 113 can cut off the connection between the first intake pipe 120 and the second intake pipe 130, thereby preventing the second intake pipe 130 from communicating with the outside.

[0052] Furthermore, one of the first intake pipe 120 and the second intake pipe 130 is integrally formed with the valve housing 111 of the intake valve assembly 110. Taking the integral formation of the first intake pipe 120 and the valve housing 111 as an example, it can be understood that the first intake pipe 120 and the valve housing 111 are manufactured as a single integral component using an integral molding manufacturing method. Alternatively, it can be understood that the first intake pipe 120 and the valve housing 111 are first manufactured separately, and then assembled together using non-removable assembly processes such as welding to form a single component. This simplifies the structure of the intake pipe device 100, reduces the number of parts, and improves assembly efficiency.

[0053] Furthermore, the first air intake pipe 120 has a water outlet 122. The water outlet 122 is located near the air intake valve assembly 110. The water outlet 122 is used to drain water when external water spreads to the location of the water outlet 122.

[0054] The air intake pipe device of this application can be used in passenger vehicles with deep wading capability or floating function.

[0055] As shown in Figure 1, the intake valve assembly 110 is located between the first intake pipe 120 and the second intake pipe 130, and the opening and closing of the valve 113 is controlled by an external drive motor 116.

[0056] As shown in Figures 2 and 5, the intake valve assembly 110 includes a first sealing ring 114, a second sealing ring 115, a rotating shaft 112, a drive motor 116, a valve 113, and a receiving groove 121. The drive motor 116 is fastened to the first intake pipe 120 with screws. The motor shaft 116a is coaxially arranged with the rotating shaft 112, and the drive shaft is connected to the rotating shaft 112 of the valve 113 from inside the motor via a spline. A third sealing ring can be provided on the motor shaft 116a to ensure effective sealing when the motor shaft 116a rotates within the mounting hole of the valve housing 111. The function of the drive motor 116 is to control the opening and closing of the valve 113 and prevent the rotating shaft 112 from shaking.

[0057] As shown in Figure 4, the two sealing rings fit tightly against the valve body 111, maximizing the sealing and waterproofing of the intake pipe. The intake valve assembly 110 is connected to the first intake pipe 120 and the second intake pipe 130 as a whole by bolts. A drain hole 122 is provided at the end of the first intake pipe 120. When a small amount of water from the outside spreads to this point, the water will be discharged outside the vehicle through the drain hole 122.

[0058] As shown in Figure 3, valve 113 is installed inside valve housing 111 and corresponds to a protruding receiving groove 121 on the inner side of valve housing 111. When valve 113 is in the open position, it is received in the receiving groove 121. At this time, under non-water-borne conditions, the first intake pipe 120 and the second intake pipe 130 are normally connected to supply air to the engine. Valve 113 does not obstruct the connection between the first intake pipe 120 and the second intake pipe 130, and will not affect the air intake volume of the first intake pipe 120 and the second intake pipe 130 under normal engine operation, ensuring normal engine operation. When the water level depth sensor located outside the rearview mirror detects that the water level is too high and water may enter the engine through the intake pipe, the vehicle control system controls valve 113 to switch to the closed position, and the first sealing ring 114 and the second sealing ring 115 provide effective waterproof sealing performance. At this time, the vehicle's driving mode can be switched to electric drive, with the motor providing the kinetic energy for vehicle movement. Even if the air intake of the vehicle's first air intake pipe 120 is submerged below the water surface, the vehicle can still be driven normally to achieve the purpose of floating on water.

[0059] The drive motor 116 is fastened to the outside of the first intake pipe 120 by screws. This does not occupy the internal space of the intake pipe, which helps to improve the compactness of the internal structure of the intake pipe. The drive motor 116 can be connected to the vehicle wiring harness through a connector, thereby connecting to the vehicle's control system through the vehicle wiring harness.

[0060] When the vehicle traverses deep water or fords or floats on water, the vehicle control system can actively close the intake valve assembly 110 to prevent external water from entering the engine. In some embodiments, the open and closed states of the intake valve assembly 110 can be linked to the driving mode. When the vehicle control system receives information that the intake valve assembly 110 is closed, it controls the engine to stop working and simultaneously controls the vehicle's electric motor to start working, at which point the vehicle can achieve the function of fording and floating on water.

[0061] The intake valve assembly 110 of this application includes a valve 113 that can be configured to be normally open, meaning that valve 113 is initially in the open position. When the vehicle enters deep water, it enters wading mode or floating mode. The vehicle control system controls valve 113 to rotate to the closed position to prevent water from entering the vehicle through the engine's air intake, thus protecting the engine. The intake valve assembly 110 can be configured to be associated with the vehicle's driving mode. When the vehicle enters wading mode, if the water level sensor in the exterior rearview mirror detects that the water level is too high, and the vehicle control system determines that water may enter the engine through the first air intake pipe 120 and the second air intake pipe 130, it controls valve 113 to rotate to the closed position. At this time, the vehicle's driving mode switches to electric drive, with the motor providing kinetic energy for the vehicle. Even if the air intake of the vehicle's first air intake pipe 120 is submerged below the water surface, the vehicle can still be driven normally, enabling it to float.

[0062] As shown in Figure 7, this application also provides an engine assembly 200, which may include an engine 201 and the aforementioned intake manifold device 100, with the intake manifold device 100 connected to the engine 201.

[0063] According to the engine assembly 200 of this application, by applying the aforementioned intake pipe device 100, water ingress can be effectively prevented in wading environments, while ensuring the engine's air intake volume. Furthermore, the structure is simpler and more compact, thus contributing to improved engine assembly performance. In the engine assembly 200 of this application, valve 113 automatically controls the opening and closing of the intake passage between the first intake pipe 120 and the second intake pipe 130 as the motor shaft 116a of the drive motor 116 rotates. It also exhibits excellent waterproof performance, meeting the requirements for deep wading and vehicle floating on water. Simultaneously, the structural design of this application is more compact, assembly is more convenient, and the addition of this structure reduces the impact on the engine's air intake volume.

[0064] As shown in Figure 8, this application also provides a vehicle 300, which includes the engine assembly 200 described above.

[0065] According to the vehicle of this application, by applying the aforementioned engine assembly 200, the waterproof performance of the vehicle 300 in a water-wading environment can be improved, thereby better protecting the engine.

[0066] For example, vehicle 300 may include a water level sensor located at the exterior rearview mirror. Vehicle 300 has a normal road driving mode, a wading mode, and a floating mode. When vehicle 300 enters a flooded road surface, river, pit, or other deep water location, the water level sensor automatically detects the water level. When the water level exceeds a set threshold, the vehicle 300 control system controls valve 113 of the intake valve assembly 110 to switch to the closed position, simultaneously activating the wading mode. In wading mode, the engine stops working, and the starter motor uses the power battery's electrical energy to drive the vehicle. The water level threshold is typically set as the height of the air intake of the first air intake pipe 120 from the ground minus a safety distance, where the safety distance is the distance between the water surface and the air intake of the first air intake pipe 120. When vehicle 300 continues to travel into deeper water and all four wheels are completely off the ground, vehicle 300 activates the floating mode. When vehicle 300 is driving on a normal road, valve 113 of the intake valve assembly 110 is in the open position, and the intake passage between the first intake pipe 120 and the second intake pipe 130 is open, allowing normal operation of both. When vehicle 300 is driving in deep water and enters wading mode, drive motor 116 synchronously drives intake valve 113 to the closed position, closing the intake passage between the first intake pipe 120 and the second intake pipe 130, thus preventing external water from entering the engine. The switching of valve 113's position can be linked to the driving mode. When the vehicle detects that valve 113 is in the closed position, the engine stops working, and the motor starts working, allowing vehicle 300 to enter either wading or floating mode.

[0067] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0068] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. An inlet valve assembly (110) for an inlet pipe arrangement (100) of an engine, wherein The intake valve assembly includes: A valve housing (111), the valve housing including a valve hole (111a) extending through it along its own extension direction, and an accommodating groove (121) formed on the inner wall of the valve housing; and A valve (113) is rotatably connected to the valve orifice about a rotation axis (AX) so as to be selectively rotated to either a closed position that closes the valve orifice or an open position that opens the valve orifice, wherein when the valve is in the open position, the valve is received in the receiving groove.

2. The gas inlet valve assembly of claim 1, wherein, The valve housing has an inlet end (111b) and an outlet end (111c) along its own extending direction; The valve has a first end (113b) and a second end (113c) opposite each other, the rotation axis is located at the first end, and when the valve is in the open position, the second end is located on the side of the rotation axis closer to the air inlet end.

3. The gas inlet valve assembly of claim 2, wherein, The intake valve assembly includes: A sealing ring (140) is connected to the valve and is continuously arranged along the circumference of the valve. The sealing ring is adapted to seal against the inner wall of the valve housing when the valve is in the closed position to block the air inlet and the air outlet.

4. The gas inlet valve assembly of claim 3, wherein, The inner wall of the valve housing includes a first sealing surface (111e), which extends circumferentially along the valve housing and intersects the extension direction of the valve housing. The intake valve assembly also includes: A first sealing ring (114) is connected axially to the end face of the valve and is adapted to seal against the first sealing surface when the valve is in the closed position.

5. The gas inlet valve assembly of claim 3, wherein, The inner wall of the valve housing includes a second sealing surface (111f), which extends circumferentially along the valve housing. In a direction parallel to the extension direction of the valve housing and close to the air inlet end, the diameter of the second sealing surface remains unchanged or increases. The intake valve assembly also includes: A second sealing ring (115) is connected to the outer peripheral surface of the valve and is adapted to seal against the second sealing surface when the valve is in the closed position.

6. The gas inlet valve assembly of any one of claims 1 to 5, wherein, The intake valve assembly also includes: A rotating shaft (112) rotatably passes through the valve housing about the rotation axis, the axis of the rotating shaft being parallel or collinear with the rotation axis, and the rotating shaft being connected to the valve; and A drive motor (116) is connected to the valve housing. The drive motor includes a motor shaft (116a) which is drively connected to the rotating shaft to drive the rotating shaft to rotate.

7. The gas inlet valve assembly of claim 6, wherein, The motor shaft and the rotating shaft are coaxial.

8. The gas inlet valve assembly of claim 6, wherein, The valve housing includes a mounting hole adapted to pass through the rotating shaft, the mounting hole communicating with the valve port and the outside; The intake valve assembly also includes: A third sealing ring is fitted around the outside of the rotating shaft and located in the mounting hole. The third sealing ring is adapted to seal the gap between the rotating shaft and the wall of the mounting hole.

9. The intake valve assembly according to any one of claims 2 to 5, wherein, The accommodating groove is located on the side of the rotation axis closer to the air inlet end in the extending direction of the valve body.

10. An air intake pipe device (100), wherein, The intake manifold assembly includes an intake valve assembly as described in any one of claims 1 to 9.

11. The intake pipe device according to claim 10, wherein, The intake valve assembly includes an intake end (111b) and an outlet end (111c), and the intake pipe device includes: A first air intake pipe (120), one end of which is sealed and connected to the air intake end, and the other end of which is connected to the outside; and A second intake pipe (130) is provided, one end of which is sealed to the outlet end, and the other end of which is adapted to be directly or indirectly connected to the engine.

12. The intake pipe device according to claim 11, wherein, One of the first intake pipe and the second intake pipe is integrally formed with the valve housing of the intake valve assembly.

13. The intake pipe device according to claim 11, wherein, The first air intake pipe has a water flow hole (122), which is located near the air intake valve assembly.

14. The engine assembly (200) comprising the intake manifold device (100) according to any one of claims 10 to 13, wherein, The engine assembly includes an engine (201), and the intake manifold is connected to the engine.

15. A vehicle (300), wherein, The vehicle includes the engine assembly according to claim 14.

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