Diffusion device for vehicle

Abstract

The embodiment of the utility model provides a diffusion device for a vehicle, and belongs to the technical field of automobile aerodynamic force. The diffusion device for the vehicle comprises a plurality of linear gas generators used for receiving external gas and outputting compressed gas; the gas storage tank is used for adjusting the pressure of compressed gas; the blowing enhancement diffuser is arranged at the bottom of an automobile body of the automobile, and the blowing enhancement diffuser is provided with at least two gas vortexes through which high-temperature automobile exhaust or compressed gas flows out to form low-pressure vortexes. The diffusion device for the automobile can generate high-flow compressed gas, and the flow rate of gas at the bottom of an automobile body is increased by blowing and generating low-pressure vortexes, so that the air pressure on the automobile body is increased, and the running stability of the automobile is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile aerodynamics, and in particular relates to a diffusion device for a vehicle. Background Art

[0002] A diffuser is an aerodynamic device installed at the bottom of a car body, usually located at the bottom of the car body below the rear bumper. The diffuser can accelerate the airflow velocity at the bottom of the car body, increase the air downforce on the car body, and thus improve the driving stability of the car.

[0003] Furthermore, the performance of the diffusion device can be effectively improved by adding an additional gas generating diffusion device. However, the gas generated by the gas generator equipped in the car itself is small and cannot meet the flow requirements of adding additional gas. Although the flow requirements of additional gas can be met by configuring a large-displacement gas generator on the car, this type of gas generator is mostly driven by a crankshaft connecting rod mechanism, which is not only large in size and occupies the limited internal space of the car, but also has obvious noise and vibration during operation, affecting driving comfort.

[0004] In view of this, there is a need to provide a vehicle diffuser that improves vehicle driving stability while taking into account driving comfort. Utility Model Content

[0005] In order to solve the above existing technical problems or part of them, the purpose of the utility model is to provide a vehicle diffuser, which can generate a large flow of compressed gas, blow air and generate a low-pressure vortex to accelerate the flow rate of gas under the vehicle body, thereby increasing the air downforce on the vehicle body, thereby improving the driving stability of the vehicle.

[0006] According to one aspect of the utility model, the vehicle diffusion device includes: a plurality of linear gas generators for receiving external gas and outputting compressed gas; a gas storage tank for adjusting the pressure of compressed gas; and a blowing enhanced diffuser, wherein the blowing enhanced diffuser is arranged at the bottom of the vehicle body, and the blowing enhanced diffuser is provided with at least two gas vortexers through which high-temperature automobile exhaust gas or compressed gas flows out to form a low-pressure vortex.

[0007] In one embodiment, the rotation direction of the low-pressure vortex is tangent to the bottom of the vehicle body; the blowing enhanced diffuser includes a first side edge, an opposite second side edge and a bottom plate located therebetween, and the at least two gas vortex generators are arranged at a side edge of the bottom plate close to the front of the vehicle body along the width direction of the vehicle body.

[0008] In one embodiment, the gas vortex generator includes: a gas nozzle for flowing out the high-temperature automobile exhaust gas or compressed gas; a vortex generator for forming the low-pressure vortex, the vortex generator is trapezoidal, and one end of the trapezoidal upper base of the vortex generator is arranged on the gas nozzle, and the other end of the vortex generator has a deflection angle with the outflow direction of the high-temperature automobile exhaust gas or compressed gas.

[0009] In one embodiment, the deflection angles of two adjacent vortex generators are the same but their deflection directions are opposite.

[0010] In one embodiment, one end of the trapezoidal upper base of the vortex generator is fixed to the gas nozzle by structural adhesive.

[0011] In one embodiment, each of the linear gas generators includes: a hollow cylinder body having cylinder covers at both ends of the cylinder body; a linear motor disposed in the cylinder body and including: a stator fixed in the cylinder body; a mover passing through the stator; and a piston respectively fixed at both ends of the mover and reciprocating along the longitudinal direction of the cylinder body with the mover.

[0012] In one embodiment, the piston is provided with a self-lubricating material.

[0013] In one embodiment, the two linear motors are symmetrically arranged in the cylinder body, and two adjacent pistons of the two linear motors move synchronously towards each other.

[0014] In one embodiment, one-way three-way valves for receiving external gas and outputting compressed gas are respectively provided on the cylinder body between the two adjacent pistons and between the cylinder cover and the linear motor.

[0015] In one embodiment, the gas storage tank is connected to the one-way three-way valve and the gas vortexer through pipelines.

[0016] The vehicle diffuser according to the embodiment of the utility model has at least one of the following advantages or part of one of the advantages:

[0017] (1) The high-temperature automobile exhaust gas or compressed gas flowing out of the air-blowing enhanced diffuser at the bottom of the vehicle body increases the gas flow velocity at the bottom of the vehicle body; the gas vortex device therein forms a low-pressure vortex to reduce the pressure on the bottom plate of the air-blowing enhanced diffuser, thereby increasing the aerodynamic downforce and improving the driving stability of the vehicle body;

[0018] (2) By setting the two adjacent vortex generators to have the same deflection angle but opposite deflection directions, the low-pressure vortices are mutually reinforced, further reducing the pressure on the bottom plate of the blown air-enhanced diffuser, thereby increasing the aerodynamic downforce and improving driving stability;

[0019] (3) The low-pressure vortex formed by the outflowing compressed gas is rotated in a direction tangent to the bottom of the vehicle body by means of a gas vortex generator, thereby blowing away the mud attached to the bottom of the vehicle body, or the low-pressure vortex formed by the outflowing high-temperature automobile exhaust is rotated in a direction tangent to the bottom of the vehicle body, thereby melting and blowing away the ice and snow attached to the bottom of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] These and / or other aspects and advantages of the present invention will become apparent and easily understood from the following description of the preferred embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 It is a structural schematic diagram of a vehicle diffusion device according to an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of an air blowing enhancement diffuser in a vehicle diffusion device is shown;

[0023] Figure 3 for Figure 2 A partial enlarged structural schematic diagram of the air blowing enhanced diffuser is shown;

[0024] Figure 4 for Figure 2 Another partial enlarged structural schematic diagram of the air blowing enhanced diffuser is shown;

[0025] Figure 5 for Figure 1 A schematic diagram of the structure of a linear gas generator in a vehicle diffusion device is shown;

[0026] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of a linear gas generator is shown. DETAILED DESCRIPTION

[0027] The following specific examples further illustrate the features of the utility model. The following description of the implementation methods of the utility model with reference to the accompanying drawings is intended to explain the overall concept of the utility model and should not be construed as a limitation on the utility model.

[0028] See also Figure 1 , showing a schematic structural diagram of a vehicle diffusion device 100 according to an embodiment of the utility model.

[0029] In the embodiment of the utility model, the vehicle diffuser 100 includes three main parts, namely, a plurality of linear gas generators 10, a gas storage tank 20, and a blow-enhanced diffuser 30. The plurality of linear gas generators 10 are used to receive external gas and output compressed gas; the gas storage tank 20 is used to adjust the compressed gas pressure; the blow-enhanced diffuser 30 is arranged at the bottom of the vehicle body, and the blow-enhanced diffuser 30 includes at least two gas vortexers 31, and the high-temperature automobile exhaust gas or the compressed gas flows out through the at least two gas vortexers 31 to form a low-pressure vortex, which reduces the atmospheric pressure acting on the bottom of the vehicle body, so that the downward pressure difference of the aerodynamics acting on the vehicle body is increased, thereby increasing the driving stability of the vehicle body.

[0030] In one embodiment, the rotation direction of the low-pressure vortex is tangential to the bottom of the vehicle body, so that the airflow of the low-pressure vortex can blow away the mud attached to the bottom of the vehicle body.

[0031] Specifically, see Figure 2 The blowing enhanced diffuser 30 is arranged at the bottom of the automobile body, and the blowing enhanced diffuser 30 includes a first side 301, an opposite second side 302 and a bottom plate 303 located therebetween, and the at least two gas vortexers 31 are arranged at a side edge of the bottom plate 303 close to the front of the vehicle body along the width direction of the vehicle body.

[0032] In one embodiment, the blowing enhancement diffuser 30 is disposed between the rear axle of the vehicle body and the rear of the vehicle body, so that more gas enters the low-pressure vortex through the bottom of the vehicle body, thereby increasing the driving stability of the vehicle body.

[0033] Those skilled in the art can evenly arrange the number of gas vortex machines 31 along the width direction of the vehicle body on one side edge of the bottom plate 303 close to the front part of the vehicle body according to the length between the first side edge 301 and the second side edge 302, so that the airflow of compressed gas can cover the bottom plate 303 between the first side edge 301 and the second side edge 302, thereby expanding the effective area of ​​the blowing enhanced diffusion device 30.

[0034] In another embodiment, when the high-temperature automobile exhaust enters the gas vortexer 31 to form a low-pressure vortex, since the high-temperature automobile exhaust comes from the exhaust gas during the automobile startup and operation, the concentration of particulate matter contained therein is relatively high. If the number of gas vortexers 31 is set too much, the flow rate of the high-temperature automobile exhaust in a single gas vortexer 31 will be insufficient, and particulate matter may clog the gas vortexer 31. Therefore, when the high-temperature automobile exhaust enters the gas vortexer 31, the number of the gas vortexers 31 should not be set too much, and it is necessary to ensure that the flow rate of the high-temperature automobile exhaust entering each gas vortexer 31 is stable to prevent particulate matter from clogging the gas vortexer 31.

[0035] See also Figure 3 The at least two gas vortex generators 31 include a gas nozzle 311 and a vortex generator 312, one end of the vortex generator 312 is arranged on the gas nozzle 311, the vortex generator 312 is trapezoidal, and the end of the trapezoidal upper base of the vortex generator 312 is arranged on the gas nozzle 311, and the other end of the vortex generator 312 has a deflection angle with the outflow direction of the high-temperature automobile exhaust or compressed gas.

[0036] Preferably, one end of the vortex generator 312 is fixed to the gas nozzle 311 by structural adhesive.

[0037] In one embodiment, the compressed gas or high-temperature automobile exhaust enters the gas vortexer 31, and after passing through the gas nozzle 311, the flow direction is deflected under the action of the vortex generator 312 to form a low-pressure vortex, so that the gas flow velocity at the bottom of the vehicle body is accelerated, and the gas pressure acting on the bottom plate 303 is reduced, so that the gas pressure difference between the upper and lower parts of the vehicle body is increased, thereby increasing the downward aerodynamic downforce acting on the vehicle body, and then increasing the driving stability of the vehicle body.

[0038] In the low-pressure vortex, the gas flow speed is accelerated and moves tangentially along the bottom plate 303 . When the gas passes through the bottom plate 303 , it can clean the dust attached to the bottom of the vehicle body.

[0039] Furthermore, when the low-pressure vortex formed by the high-temperature automobile exhaust passes through the bottom plate 303, the high-temperature automobile exhaust can melt and clear the ice and snow attached to the bottom of the vehicle body.

[0040] See also Figure 4 By setting the deflection directions of the two adjacent vortex generators 312 to be opposite but their deflection angles to be the same, the low-pressure vortices generated by the two adjacent vortex generators 312 can reinforce each other, further reducing the gas pressure acting on the bottom of the vehicle body, thereby increasing the aerodynamic downforce and increasing driving stability.

[0041] See also Figure 5 , specifically showing the specific structure of the linear gas generator 10 of the utility model. The linear gas generator 10 can set the capacity according to the gas demand of the blowing enhancement diffuser 30, for example, the capacity is 2L, 5L, 10L, or even larger.

[0042] The linear gas generator 10 has at least one cylinder body 11, preferably, the cylinder body 11 is a hollow cylinder; cylinder covers 111 are provided at both ends of the cylinder body 11, preferably, the cylinder covers 111 are circular plates; the cylinder covers 111 are fixed to both ends of the cylinder body 11 by structural adhesive or welding, and are used to seal both ends of the cylinder body 11; the cylinder body 11 is also provided with a one-way three-way valve 112 for receiving external gas and outputting compressed gas.

[0043] In one embodiment, the gas flow demand of the blowing enhancement diffuser 30 is met by increasing the number of linear gas generators 10 .

[0044] See also Figure 6 The linear motor 12 is arranged in the cylinder 11 along the inner wall of the cylinder 11. Preferably, the linear motor 12 is fixed to the inner wall of the cylinder 11 by screws; the linear motor 12 comprises a stator 121, a mover 122 and a piston 123. The stator 121 is fixed in the cylinder 11, the mover 122 passes through the stator 121, and the piston 123 is respectively fixed at both ends of the mover 122 and reciprocates along the longitudinal direction of the cylinder 11 with the mover 122.

[0045] In one embodiment, the piston 123 is provided with a self-lubricating material to reduce the friction between the piston 123 and the cylinder body 11 .

[0046] Furthermore, the piston 123 is a self-lubricating piston, such as a leather cup piston, to avoid contamination of the compressed gas by splashing oil droplets caused by existing oil lubrication.

[0047] Continue to see Figure 6 In one embodiment, the two linear motors 12 are symmetrically arranged in the cylinder body 11, and the two adjacent pistons 123 of the two linear motors 12 move synchronously in opposite directions, which can offset the axial vibration generated during the operation of the linear motor 12 and improve the operation stability of the linear gas generator 10.

[0048] In one embodiment, a one-way three-way valve 112 is respectively disposed on the cylinder body 11 between two adjacent pistons 123 and between the cylinder cover 111 and the linear motor 12 .

[0049] Furthermore, two one-way three-way valves 112 are arranged between the two adjacent pistons 123, so that when the two adjacent pistons 123 move synchronously in opposite directions, the gas input and output requirements of a larger flow rate between the two adjacent pistons 123 are met while ensuring that the compressed gas flow rate flowing out of each one-way three-way valve 112 is equivalent.

[0050] See again Figure 1, the gas tank 20 is arranged between the linear gas generator 10 and the blowing enhancement diffuser 30, and the gas tank 20 is connected to the one-way three-way valve 112 and the blowing enhancement diffuser 30 through pipelines. Preferably, a pipeline is arranged between each one-way three-way valve 112 and the gas tank 20, and all pipelines are connected to the gas tank 20 through the same inlet, so that the compressed gas generated by the gas generator 10 does not generate turbulence between each other, and the flow rate of the compressed gas entering the gas tank 20 can be guaranteed to be stable. The compressed gas enters and is stored in the gas tank 20. After the compressed gas pressure is adjusted by the gas tank 20, the compressed gas enters the gas vortex 31 through the pipeline. Preferably, the compressed gas flows out through the same outlet on the gas tank 20, and enters each gas vortex 31 through a pipeline that is separately connected to the same outlet of the gas tank 20, so that the flow rate of the compressed gas passing through each gas vortex 31 is equivalent.

[0051] The vehicle diffuser according to the embodiment of the utility model has at least one of the following advantages or part of one of the advantages:

[0052] (1) The high-temperature automobile exhaust gas or compressed gas flowing out of the air-blowing enhancement diffuser 30 at the bottom of the vehicle body increases the gas flow velocity at the bottom of the vehicle body; the gas vortexer 31 therein forms a low-pressure vortex on the outflowing gas, thereby reducing the pressure of the bottom plate 303 of the air-blowing enhancement diffuser 30, thereby increasing the aerodynamic downforce and improving the driving stability of the vehicle body;

[0053] (2) By setting the two adjacent vortex generators 312 to have the same deflection angle but opposite deflection directions, the low-pressure vortices are mutually reinforced, further reducing the pressure of the bottom plate 303 of the air-blowing enhancement diffuser 30, thereby increasing the aerodynamic downforce and improving driving stability;

[0054] (3) The gas vortex generator 31 is used to make the low-pressure vortex formed by the outflowing compressed gas rotate in a direction tangent to the bottom of the vehicle body, thereby blowing away the mud attached to the bottom of the vehicle body, or to make the low-pressure vortex formed by the outflowing high-temperature automobile exhaust gas rotate in a direction tangent to the bottom of the vehicle body, thereby melting and blowing away the ice and snow attached to the bottom of the vehicle body.

[0055] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Those skilled in the art will understand that these embodiments can be changed without departing from the principles and spirit of the overall concept of the present invention. These changes should also be considered to fall within the protection scope of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle diffuser, characterized in that: The vehicle diffusion device comprises: A plurality of linear gas generators for receiving external gas and outputting compressed gas; Gas tanks for regulating the pressure of compressed gas; The invention discloses a blowing enhanced diffuser, which is arranged at the bottom of the automobile body and is provided with at least two gas vortex devices through which high-temperature automobile exhaust gas or compressed gas flows out to form a low-pressure vortex.

2. The vehicle diffuser according to claim 1, characterized in that: The rotation direction of the low-pressure vortex is tangent to the bottom of the vehicle body; The air blowing enhancement diffuser comprises a first side, an opposite second side and a bottom plate therebetween, and the at least two gas vortexers are arranged at a side edge of the bottom plate close to the front part of the vehicle body along the width direction of the vehicle body.

3. The vehicle diffuser according to claim 2, characterized in that: The gas swirler comprises: A gas nozzle for discharging the high-temperature automobile exhaust gas or compressed gas; A vortex generator for forming the low-pressure vortex is trapezoidal in shape, one end of the vortex generator where the trapezoidal upper base is located is arranged on the gas nozzle, and the other end of the vortex generator has a deflection angle with the outflow direction of the high-temperature automobile exhaust or compressed gas.

4. The vehicle diffuser according to claim 3, characterized in that: The deflection angles of two adjacent vortex generators are the same but their deflection directions are opposite.

5. The vehicle diffuser according to claim 4, characterized in that: One end of the trapezoidal upper base of the vortex generator is fixed to the gas nozzle by structural adhesive.

6. The vehicle diffuser according to any one of claims 1 to 5, characterized in that: Each of the linear gas generators comprises: A hollow cylinder body, with cylinder covers at both ends of the cylinder body; A linear motor is disposed in the cylinder body and comprises: a stator, the stator being fixed in the cylinder body; a mover passing through the stator; and The pistons are respectively fixed at two ends of the mover and reciprocate along the longitudinal direction of the cylinder body with the mover.

7. The vehicle diffuser according to claim 6, characterized in that: The piston is provided with a self-lubricating material.

8. The vehicle diffuser according to claim 7, characterized in that: The two linear motors are symmetrically arranged in the cylinder body, and two adjacent pistons of the two linear motors move synchronously towards each other.

9. The vehicle diffuser according to claim 8, characterized in that: One-way three-way valves for receiving external gas and outputting compressed gas are respectively arranged on the cylinder body between the two adjacent pistons and between the cylinder cover and the linear motor.

10. The vehicle diffuser according to claim 9, characterized in that: The gas storage tank is communicated with the one-way three-way valve and the gas vortexer respectively through pipelines.

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