JPS6124457Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device that reduces air resistance generated at the front of a running automobile and prevents the phenomenon of lifting.

The air resistance generated on a running automobile increases in proportion to the square of the vehicle's speed, and in the case of a general passenger car, the body tends to lift up and the running becomes unstable.

This invention retains the same exterior shape as a normal passenger car at first glance, but combines the effects of reducing air resistance and generating reverse lift, which speed racing vehicles have with their exterior shape, with headlights. It is a device that is installed in the surrounding area, and one of its features is that the manufacturing cost is low.

The present invention will be explained below with reference to the drawings.The structure is such that the transparent headlight cover 1 of an automobile is tilted greatly backwards, resembling the shape of the front part of a so-called high-speed supercar. An air outlet 3 is formed in the bonnet 2 located above the bonnet 2 and its surroundings, and a reverse lift plate 4 having an inverted airfoil cross section, for example, is rotatably attached to the upper part of both inner wall surfaces of the air introduction passage 6 leading to the outlet 3. It is mounted on a shaft.

As shown in FIGS. 2 and 3, the headlight cover 1 has its upper end in contact with the rear end of the air outlet 3 of the bonnet 2 when the bonnet is closed. Air flowing in from the air inlet 5 in the direction of illumination of the headlamp 7 while driving hits the headlamp cover 1 and then flows into the air introduction path 6.
, the reverse lift plate 4 is rotated counterclockwise to open it, and the water flows upward to the rear. In the figure, 8 is the axis;
9 is the cut portion.

The light from the headlights 7 can pass through the transparent headlight cover 1 and illuminate the direction in which the vehicle is traveling from the inlet 5 without any hindrance.

The cross-section of the reverse lift plate 4 is in the shape of an inverted airfoil, etc., and has a shape capable of generating reverse lift, and has a function similar to the wing installed at the rear of a speed race car.

Since the present invention is configured as described above, a car to which the present invention is applied releases the wind pressure generated in the headlights and the surrounding area upwards and backwards, so compared to a general car, the headlights and the surrounding area are It is possible to reliably reduce the air resistance that occurs during driving and save fuel accordingly. In addition, the lifting effect of the front part of the vehicle during high-speed driving is prevented by the reverse lift effect, and the front wheels are brought into contact with the road surface, improving steering stability and enabling safe driving.

Next, the effects of wind pressure reduction and reverse lift generation will be explained in detail with reference to FIG.

When the wind pressure applied to the headlight cover 1 while the car is running is expressed by arrows a, b, c, and d in Fig. 2, arrow a is perpendicular to the headlight cover 1, arrow b, and horizontal arrow c. It can be decomposed into two component forces, and b represents the reverse lift force as a component force d perpendicular to the direction of travel.

Further, the air passing through the reverse lift plate 4 has a flow velocity higher on the lower surface than the upper surface due to the cross-sectional shape of the reverse airfoil, which further strengthens the reverse lift effect and strengthens the grounding stability of the front wheels.

In the case of the external shape of a general passenger car, insufficient consideration has been given to the wind pressure generated around the headlights and the direction in which the air flows out, so the air flow is several times larger than the cross-sectional area of the headlights in the direction of travel. The vehicle is running while generating turbulence, but the amount of fuel wasted is surprisingly large due to this invisible wind pressure.

The air resistance reduction effect of a car equipped with the device of the present invention is that even when driving at normal speed, the wind pressure easily lifts the rear end of the reverse lift plate 4 slightly above the bonnet, making it visible from the driver's seat. This can be confirmed, and fuel will definitely be saved by the amount of air resistance reduced.

Since wind pressure increases in proportion to the square of the driving speed, it is necessary to make the front of the vehicle as sharp as possible in the shape of a wedge. However, this invention allows the headlights to be mounted at the rear of the exterior of a general passenger car rather than the conventional one. Furthermore, air resistance around the headlights and its surroundings is minimized by the headlight cover 1 and others.

By the way, when a car equipped with the present invention is stopped, the reverse lift plate 4 closes the air outlet 3 as shown in Fig. 3, so it can be distinguished from a normal passenger car at first glance, except for the mounting part of the headlight. It has a difficult shape.

In other words, a car equipped with the present invention has the characteristics of a high-speed supercar in terms of aerodynamic performance regarding the headlights and surrounding areas, but on the other hand,
It does not have any special mechanisms, such as the engine being mounted horizontally in the center of the vehicle body, or air ducts blowing air from inlets located throughout the vehicle to a radiator installed at the rear, and its manufacturing cost is approximately the same as that of a regular passenger car.

For example, the following points can be listed as major advantages of a car equipped with the present invention compared to a car equipped with headlights that only protrude when illuminated.

(1) Because the mechanism is simple, manufacturing costs are low and failures are rare.

(2) Air resistance can be constantly reduced because the headlights do not protrude during illumination.

(3) Compared to a headlamp in which the entire lens protrudes, the rear part of the reverse lift plate 4 can be cut down to reduce the raised part at the top of the bonnet, so it does not obstruct the driver's field of view.

(4) The reverse lift generation effect can be added by the reverse lift plate 4.

As described above, cars equipped with this invention can be manufactured at almost the same cost as ordinary passenger cars, but have performance similar to that of high-speed supercars in terms of aerodynamic issues related to headlights and their surroundings. There are some features.

In addition, because the exterior shape is similar to that of a general passenger car, it is easy to use, is cheap, consumes little fuel, and is highly safe to drive.There is considerable social demand for cars equipped with this invention. The contribution to industry is also considered to be quite high.

In addition, numeral 10 in the figure is an engine that is mounted using a normal mounting method.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view of the invention, Fig. 2 is a sectional view taken along line A-A of the above, and Fig. 3 is a sectional view showing the reverse lift plate in a closed state. , Figure 4 is a perspective view of the present invention with the bonnet cut away, Figure 5 is a front view of the present invention with two air inlets, Figure 6 is an enlarged perspective view of the reverse lift plate, and Figure 7 is the FIG. 4 is a partial sectional view taken along line B-B in FIG. 1 is a car headlight cover, 2 is a bonnet,
3 is an air outlet, 4 is a reverse lift plate, 5 is an air inlet, 6 is an air introduction path, 7 is a headlight, 8 is a shaft, 9 is a cut-off part, and 10 is an engine.

Claims (1)

[Scope of utility model registration request] A transparent automobile headlight cover 1 is tilted greatly backwards, an air outlet 3 is formed around a bonnet 2 located above the cover, and most of the air outlet 3 is closed when the vehicle is stopped, and when the vehicle is running, A reverse lift plate 4, which opens the air outlet 3 by lowering the front end and raising the rear end, is routed to both inner wall surfaces of the air introduction passage 6, which has the headlight cover 1 as the bottom surface and leads from the air inlet 5 to the air outlet 3. A reverse lift device for reducing air resistance for automobiles that is movably mounted on a shaft.