JP4866970B1 - Method of eliminating air resistance behind the vehicle body when driving an automobile and tire wheel used therefor - Google Patents

Abstract

[PROBLEMS] To release pressurized air by forcibly sucking air outside the vehicle into the lower space of the vehicle body through a tire wheel that rotates integrally with the tire to eliminate the negative pressure region at the rear of the vehicle body and to generate at the rear of the vehicle body This is to eliminate the negative pressure air resistance that tends to pull the vehicle body backward by the negative pressure region to improve the fuel efficiency during driving without changing the shape of the rear side of the vehicle body.
Air outside a vehicle is forcibly sucked into a vehicle body lower space 11 through a tire wheel 3 that rotates at the time of traveling, and air c that has been forcibly sucked and pressurized is discharged from a rear end 13 of the vehicle body to the rear 12 of the vehicle body. By releasing the pressurized air c to the negative pressure region a generated at the rear 12, the negative pressure region a at the rear 12 of the vehicle body is eliminated, and the air resistance due to the negative pressure generated at the rear of the vehicle body is eliminated.
[Selection] Figure 1

Description

  The present invention relates to a technology that contributes to improving the running performance of a vehicle that runs on tires, and in particular, negative pressure generated due to turbulence of airflow generated behind the vehicle body without changing the shape or structure of the vehicle body. The present invention relates to a method for extinguishing air resistance behind a vehicle body during traveling of a vehicle, which eliminates the region and enables efficient high speed traveling, and a tire wheel used for the method.

It is known that when an automobile is run at a high speed, the speed is slowed down by air resistance, and extra fuel is consumed in order to overcome the air resistance and continue high speed running.
As air resistance acting on the vehicle body during driving, air resistance in front of the vehicle body caused by air acting on the vehicle body from the front is generally known, but actually air resistance is also generated behind the vehicle body.
The mechanism of air resistance generated in front of the vehicle body is different from that of air resistance generated in the rear of the vehicle body. That is, the air resistance generated in front of the vehicle body is a so-called positive pressure air resistance caused by pressurized air. The air resistance generated behind the vehicle body is a so-called negative pressure air resistance caused by a negative pressure region due to airflow disturbance. Positive pressure means that the pressure is higher than atmospheric pressure, and negative pressure means that the pressure is lower than atmospheric pressure.
A traveling vehicle has a force that prevents it from moving forward due to the positive pressure air resistance generated by the pressurized air generated in the front, and the negative pressure air resistance due to the negative pressure region generated rearward causes the vehicle to move backward. A force to draw is acting.
In any case, the driving vehicle synergistically acts to prevent the vehicle from moving forward and backward due to forward positive air resistance and backward negative air resistance. As a result, the fuel consumption is remarkably lowered particularly at high speed driving.

Regarding the air resistance acting on the vehicle body during driving, various studies have been made on the structure of the vehicle body that reduces the air resistance by making the shape of the vehicle body streamlined, etc., but on reducing the air resistance other than the shape of the vehicle body There is no research. The same applies to the turbulence of the air generated at the rear of the vehicle body, and a technical idea that attempts to respond by changing the shape of the rear side of the vehicle body is common.
In addition, when trying to reduce the air resistance at the rear side of the vehicle body during driving, the rear side of the vehicle body inevitably becomes longer. As a result, the entire vehicle tends to be long. Therefore, it is difficult to lengthen the rear portion of the vehicle body to reduce the air turbulence in consideration of the overall design of the vehicle. In addition, since it is considered that the influence of the air resistance on the rear side is smaller than that on the front side of the vehicle body, there is little idea to reduce the air resistance on the rear side of the vehicle body as much as the front side of the vehicle body.
As described above, regarding the generation of the negative pressure region caused by the turbulence of the air behind the vehicle body, and the air resistance that tries to pull the vehicle body rearward by the negative pressure region, it is technically intended to cope with a method other than the shape. There is no thought.

  The present invention has been devised in view of the above-described problems, and has been devised to solve the problems. The object of the present invention is to remove air outside the vehicle through a tire wheel that rotates integrally with the tire. Release the pressurized air forced into the space to the rear of the vehicle to eliminate the negative pressure region behind the vehicle, and eliminate the negative pressure air resistance that tries to pull the vehicle back by the negative pressure region generated at the rear of the vehicle Thus, an object of the present invention is to provide a method of eliminating air resistance behind a vehicle body during traveling of a vehicle and a tire wheel used therefor, which can improve fuel efficiency during driving without changing the shape of the rear side of the vehicle body.

  In order to achieve the above-mentioned problems, the invention of claim 1 is forcing air outside the vehicle into the lower space of the vehicle body through the tire wheel that rotates integrally with the tire on the outer periphery side when the vehicle equipped with the tire wheel is running. Suction, forced suction and pressurized air are released from the rear end of the lower part of the vehicle body to the rear of the vehicle body, and the pressurized air is released to the negative pressure region caused by the turbulence of the airflow generated behind the vehicle body. Thus, the negative pressure region at the rear of the vehicle body is eliminated, and the air resistance due to the negative pressure that tries to pull the vehicle body backward by the negative pressure region generated at the rear of the vehicle body is eliminated.

  In order to achieve the above object, the invention of claim 2 is provided between a rotation center ring side of a tire wheel attached to an axle of an automobile and a peripheral ring side of a tire wheel on which the tire is mounted on an outer peripheral side. In addition, the suction blades are formed radially at equal intervals from the rotation center ring side toward the peripheral ring side, and the suction blades are rotated in a direction in which the tire wheel that rotates integrally with the tire advances the automobile. When it does, it consists of the means formed in the direction which forcibly attracts the air outside the vehicle to the vehicle body lower space.

According to a method for eliminating air resistance behind a vehicle body during traveling of an automobile and a tire wheel used therefor according to claim 1 and claim 2 comprising means for solving the problems, traveling of an automobile equipped with a tire wheel Occasionally, air outside the vehicle is forced into the lower space of the vehicle body through a tire wheel that rotates integrally with the outer tire so that the air density in the lower space of the vehicle body is increased and the air is pressurized become. At this time, since the automobile is moving forward, the air that has been forcibly sucked into the lower space of the vehicle body to increase its density and continues to move relatively continuously toward the lower rear end side of the vehicle body, Released from the lower rear end to the rear of the vehicle. The turbulence of the airflow is caused by the running behind the vehicle body, and the turbulence of the airflow causes a negative pressure state at the rear of the vehicle body to appear. When pressurized air is discharged from the rear end of the lower part of the vehicle body to the rear of the vehicle in the negative pressure region, the negative pressure region at the rear of the vehicle body is increased by the compressed air. The rear is changed from a negative pressure state to a positive pressure state, the negative pressure region disappears, and the force to pull the vehicle body backward disappears, so that the air resistance due to the negative pressure from the rear of the vehicle body disappears. Thereby, the improvement of the fuel consumption at the time of a driving | operation can be aimed at. Particularly during high-speed driving, the air resistance due to negative pressure behind the vehicle body increases, so the fuel efficiency during high-speed driving is significantly improved. Moreover, in this case, it can be realized without changing the shape of the rear side of the vehicle body.
In addition to this, the density of the lower space of the vehicle body is increased by forced suction air, and the upper side of the vehicle body has a streamlined shape that reduces air resistance. It is considered that the upward force, that is, the lift force acts on the vehicle body although it is slight. As a result, the car body can be expected to be slightly smaller but lighter, and the weight reduction of the car body is directly linked to improved fuel consumption, so that lift is generated due to forced intake of air into the lower part of the car body. In this way, it is possible to expect an improvement in fuel consumption due to the weight reduction of the vehicle body in the vehicle.

  Moreover, according to the tire wheel used for the high-speed driving method of the automobile according to the invention of claim 2, it is possible to realize the above effect without changing the shape of the rear side of the vehicle body at all. By attaching to any used car and using it, the air resistance due to negative pressure behind the car body at high speed driving disappears, and the weight of the car body by generating lift increases the fuel efficiency at high speed driving can do.

It is the side view which showed the flow of the air around the motor vehicle at the time of driving | running | working in the form for implementing this invention. It is the bottom view which showed the flow of the air around the motor vehicle at the time of driving | running | working in the form for implementing this invention. It is a side view of the tire wheel which shows the form for implementing this invention. (A) is AA sectional drawing of the suction blade in FIG. 3, (B) is BB sectional drawing of the suction blade in FIG. 3, (C) is CC sectional drawing of the suction blade in FIG.

  Hereinafter, the present invention will be described more specifically based on embodiments for carrying out the invention described in the drawings.

  In the drawings, the automobile 1 is a general four-wheel vehicle, that is, a passenger car in which tires 2 are attached at four locations on the front, rear, left, and right, but the automobile 1 includes trucks, buses, large vehicles, etc. included. The tire 2 of the automobile 1 is mounted on the outer peripheral side of the tire wheel 3. By rotating the tire wheel 3 integrally with the tire 2 around the forward direction of the automobile 1, the air outside the tire wheel 3, that is, the air b outside the vehicle is forcibly sucked and sent into the vehicle body lower space 11. It has become.

  The tire wheel 3 has a circular shape, and the rotation center ring 31 is attached to the axle of the automobile 1 and rotates integrally with the axle. A tire 2 is mounted on the outer peripheral side of the peripheral ring 32 of the tire wheel 3. The automobile 1 includes a gasoline engine car, a diesel engine car, and an electric car.

  Between the rotation center ring 31 side and the peripheral ring 32 side of the tire wheel 3, suction blades 33 are integrally formed radially at equal intervals from the rotation center ring 31 side toward the peripheral ring 32 side. Between the adjacent suction blades 33, a suction port 34 is opened. The suction blades 33 and the suction ports 34 are alternately formed.

  The suction blade 33 of the tire wheel 3 functions as a turbine. By the rotation of the tire wheel 3 by the suction blade 33 that functions as a turbine, the air b outside the vehicle is forcibly sucked into the vehicle body lower space 11 through the suction port 34. The suction blade 33 and the suction port 34 have, for example, a substantially fan shape that is narrow on the rotation center ring 31 side and gradually widens toward the peripheral ring 32 side.

  The suction blade 33 is formed in a direction in which air outside the automobile 1 is forcibly sucked into the vehicle body lower space 11 when the tire wheel 3 that rotates integrally with the tire 2 rotates in a direction to advance the automobile 1. ing. For this reason, the directions of the suction blades 33 of the tire wheel 3 attached to the right side and the left side of the automobile 1 are different. Further, as shown in FIGS. 3 and 4, the suction blade 33 has a cross-sectional shape that changes from the rotation center ring 31 side toward the peripheral ring 32 side.

  That is, the suction blade 33 of the tire wheel 3 to which the left tire 2 is mounted and the suction blade 33 of the tire wheel 3 to which the right tire 2 is mounted are symmetrical. When the left and right tire wheels 3 attached to the axles symmetrically rotate in the forward direction of the automobile 1, the suction blades 33 of the rotating left and right tire wheels 3 forcibly suck the air b outside the vehicle into the vehicle body lower space 11. .

Next, a method for eliminating the air resistance behind the vehicle body when the vehicle is traveling at high speed based on the configuration of the embodiment for carrying out the invention will be described below.
While the vehicle 1 is running, it receives positive pressure air resistance from the front, but receives negative pressure air resistance from the rear 12 of the vehicle body. That is, the turbulence of the airflow occurs at the rear 12 of the vehicle body, and the turbulence of the airflow creates a negative pressure, and the negative pressure region a appears at the rear 12 of the vehicle body.

  By the way, in each tire wheel 3 that rotates integrally with each tire 2 that rotates when the automobile 1 travels, a plurality of suction blades 33 are radially formed at equal intervals between the rotation center ring 31 side and the peripheral ring 32 side. Has been. The suction blade 33 that rotates integrally with the tire wheel 3 that rotates together with the tire 2 functions as a turbine. By the rotation of the suction blade 33, the air b outside the vehicle 1, that is, the air outside the tire wheel 3. Is forcibly sucked into the vehicle body lower space 11 through between the suction ports 34.

  The vehicle body lower space 11 of the traveling vehicle 1 is forced to suck air b outside the vehicle through the left and right tire wheels 3 on the front wheel side and the left and right tire wheels 3 on the rear wheel side. The density of the air is increased by the sucked air, and the pressurized air c is obtained. Since the automobile 1 continues to move forward, the pressurized air c that has been forcibly sucked into the lower space 11 of the vehicle body and increased in density continues to move relatively continuously toward the rear lower end side 13 of the vehicle body. It is continuously discharged from the rear end 13 to the rear 12 of the vehicle body.

  The air flow is disturbed by the forward travel at the rear 12 of the vehicle body, and due to the disturbance of the air flow, the rear 12 of the vehicle body is in a negative pressure state and a negative pressure region a appears. When pressurized air c having a higher density is continuously discharged from the rear end 13 of the lower body of the vehicle body 12 in the negative pressure region a, the negative pressure region a of the rear body 12 is continuously released. The high-pressure pressurized air c discharged into the vehicle is sucked, and the negative pressure region a in the rear 12 of the vehicle body rapidly changes from a negative pressure state to a positive pressure state due to the inflow of the high-pressure pressurized air c. Disappears.

  By the way, the magnitude of the negative pressure in the negative pressure region a appearing at the rear 12 of the vehicle body during driving increases in proportion to the speed of the automobile 1, and the negative pressure in the negative pressure region a increases as the speed increases. The amount of air that is forcibly sucked into the vehicle body lower space 11 by the suction blades 33 of each tire wheel 3 increases in proportion to the number of rotations of the suction blades 33 of the tire wheel 3, and the higher the speed of operation, the more the tire wheel 3 also rotates at high speed.

  That is, when the speed of the automobile 1 during driving increases and the speed increases, the negative pressure in the negative pressure region a appearing at the rear 12 of the vehicle body increases, but on the other hand, the rotation speed of the tire wheel 3 also increases. The amount of air that is forcibly sucked by the rotation of the suction blades 33 also increases.

  For this reason, high-density pressurized air that forcibly sucks the negative pressure region a in the rear 12 of the vehicle body that appears during driving by the suction blades 33 of the rotating tire wheel 3 regardless of the speed during driving. By c, it can always be extinguished.

  In this way, the negative pressure region a generated at the rear 12 of the vehicle body is extinguished by the air that is forcibly sucked by the suction blades 33 of the respective tire wheels 3, so that the force for pulling the vehicle body of the automobile 1 backward during driving is The air resistance due to the negative pressure from the rear 12 of the vehicle body can be eliminated. Thereby, it becomes possible to improve the fuel consumption by preventing the fuel consumption of the automobile 1 from being lowered during traveling. In particular, fuel consumption can be improved by preventing a significant reduction in fuel consumption of the automobile 1 during high-speed traveling.

  Further, the density of the vehicle body lower space 11 is increased by the air forcedly sucked by the suction blades 33 of the tire wheels 3. On the other hand, the upper part of the vehicle body has a streamlined shape with a low air resistance, so that the air flow becomes faster and the air density becomes lower. In this way, the air density of the lower part of the vehicle body becomes higher and the air density of the upper part thereof becomes smaller. It is done.

  As a result, the vehicle body can be expected to be slightly smaller but lighter, and the weight reduction of the vehicle body is directly linked to the improvement of fuel consumption. Therefore, the vehicle body due to lift generated by forcibly sucking air into the vehicle body lower space 11 and taking it in. Improvements in fuel economy can be expected with the weight reduction.

  Note that the present invention is not limited to the embodiment for carrying out the invention described above, and various modifications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Automobile 11 Car body lower space 12 Car body back 13 Car body lower part rear end 2 Tire 3 Tire wheel 31 Rotation center ring 32 Peripheral ring 33 Suction vane 34 Suction port a Negative pressure area b Air outside car c Pressurized air

Claims (2)

When driving an automobile equipped with a tire wheel, air outside the vehicle is forcibly sucked into the lower space of the vehicle body through a tire wheel that rotates integrally with the outer tire, and the air that has been forcibly sucked and pressurized is The negative pressure generated at the rear of the vehicle body is eliminated by releasing the above pressurized air into the negative pressure region that is discharged from the end to the rear of the vehicle body and generated by the turbulence of the airflow generated at the rear of the vehicle body. A method of eliminating air resistance behind a vehicle body when the vehicle is running, wherein air resistance caused by negative pressure that attempts to pull the vehicle body backward by a pressure region is eliminated. Between the rotation center ring side of the tire wheel attached to the axle of the automobile and the peripheral ring side of the tire wheel on which the tire is mounted on the outer peripheral side, the suction blades are radially directed from the rotation center ring side to the peripheral ring side. The suction vanes are formed at equal intervals, and when the tire wheel that rotates integrally with the tire rotates in the direction in which the vehicle advances, the air outside the vehicle is forced to be sucked into the vehicle lower space. A tire wheel for use in a method for eliminating air resistance behind a vehicle body when the vehicle is running.

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