JPS5813122A - Swirl generation device for intake and exhaust gases of internal-combustion engine - Google Patents

Abstract

PURPOSE:To have an increased output and to enhance the rate of fuel consumption by providing the internal wall of the suction or exhaust pipe with a spiral groove or projection, or otherwise a twisted stationary vane and thereby giving the suction and exhaust gases a swirl. CONSTITUTION:A spiral projection or groove, or otherwise a twisted stationary vane, 2, is furnished at the inner wall of the suction or exhaust pipe of an internal-combustion engine. Further, a swirl generating device 8 is installed between an air filter 7 and swirl generating device 2. Thereby the air stream is baffled and concentrated to generate a swirl slowly, and then the air stream is led to the swirl generating device 2. Thus the output of an internal-combustion engine and its rate of fuel consumption can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention aims to increase the output of an internal combustion engine by imparting a vortex to the intake air, exhaust gas, or both, and at the same time to improve fuel efficiency.

BACKGROUND ART Various studies have been made and improvements have been made to improve the output of internal combustion engines, and one of the challenges is to improve the surface roughness of intake and exhaust passages.

This is intended to increase the output of the internal combustion engine by reducing intake and exhaust fluid resistance and increasing the flow rate per unit time.

However, if this exceeds a certain limit, the production costs will rise sharply using current processing technology.

Normally, when an internal combustion engine intakes or exhausts air, the lowering (movement) of a piston inside the cylinder creates a negative pressure inside the cylinder, so atmospheric pressure forces the air-fuel mixture into the cylinder.

Also, the exhaust gas is pushed out into the atmosphere by the pressure of the exhaust gas.

Recently, over-intake has been widely reconsidered and adopted as an equivalent to U2 or as another intake countermeasure for increasing output.

However, a supercharger uses exhaust energy to turn a turbine, thereby forcing more air-fuel mixture into the cylinder via an air pressure feeder.

However, the present invention was devised for the purpose of reducing the production cost of the device and increasing the output of an internal combustion engine by utilizing the principles of nature and the characteristics of fluid.

To explain this with the help of drawings, FIG. 1 shows a structure in which helical tile-like protrusions are provided on the inner wall of an intake pipe or an exhaust pipe.

In FIG. 2, a spiral groove is provided on the inner wall of an intake pipe or an exhaust pipe.

These can be formed mainly by molds, metal molds, press molds, etc. at the time of molding the component material.

Fig. 3 shows an appropriate number of twisted fixed blades 2 installed inside an outer cylinder 1 so that the center part is at an angle of zero degrees or close to the axis, and the outer peripheral part is at an angle to the axis. This is a partial cross-sectional view of the vortex generator.
This is just one picture.

4 is a plan view and a central sectional view of FIG. 3, where 1 is an outer cylinder, 2
has feathers.

FIG. 5 shows a practical example in which the vortex generator of FIG. 3 is combined and attached to the top of a carburetor.

5 is a partial cross-sectional view of the carburetor. Since the crystal has two inlets for intake air, primary and secondary, two vortex generators are installed inside the built-in cylinder 3 in order to improve efficiency. It is incorporated.

Furthermore, in the horizontal section of the built-in cylinder 3, in the space outside the area occupied by one vortex generator, there are four
A rectifying plate is installed.

Generally, when a fluid flows in the axial direction in a cylinder, by giving the axis a fixed rotation in the vertical direction, the fluid starts a spiral motion, increases the flow velocity, and as a result, the flow rate increases. It is a well-known fact that there is no need to explain it here.

By providing the vortex generation device in the airflow path in this way, the air heading to the vaporizer via the air purifier passes through the vortex generation device, where it becomes a vortex and is sucked into the vaporizer.

When the engine speed exceeds a certain limit (in the experimental example, it was a 6-cylinder, 4-cycle, 1994cc, gasoline engine with 2000 revolutions per minute), the vortex effect is rapidly enhanced and the intake air flow rate increases. Then stir the mixture to death
combustion efficiency is improved.

FIG. 6 is an example of an actual example like FIG. 5, but the differences from FIG. 5 are that the air filter 7 and the vortex generator 1. and 2. In this case, it rectifies the airflow and collects it in the center, while gently generating a vortex.
:'4=! iJj"! When used for exhaust, it increases the speed of exhaust by 1% and has the effect of suction and exhaust in eliminating exhaust gas.

In this detailed description, various shapes and examples of the vortex generator have been described, but the principle and truth remain the same.

Nowadays, especially in automobile internal combustion engines, pollution control devices and other equipment are often used, so it is not necessary to specify the installation location of this device, and it is necessary to find the most articulated shape at the location where it can be installed. We have described various shapes in this way because it is only a matter of selecting one.

What is noteworthy is the twist angle shown on the blades and grooves.
is a straight line that varies depending on the location where it is installed and the effective length of the vortex sphere. -1,

[Brief explanation of the drawing]

Figure 1 shows the vortex generation system installed in the intake and exhaust passages.
FIG. 2 is a cross-sectional view and a front view showing a helical tile-shaped protrusion. Figure 2 shows the vortex generation system installed in the intake and exhaust passages.
FIG. 3 is a cross-sectional view and a front view showing a spiral groove. FIG. 3 is a perspective view, partially in section, showing the structure of the main body of the vortex generator. 1 is an outer cylinder, 2 is a blade, and 4 is a plan view and a partially sectional view of the main body of the vortex generator.・ 1 is the outer cylinder 2 is the blade 2 is the blade Figure 5 is a structural diagram of the actual installation of the vortex generator Partial cross section Cause 1 is the outer cylinder 2 is the blade 3 is the built-in cylinder 4 is the rectifier plate Figure 6 is the same as Figure 5 Similarly, the structural diagram of the actual example, partially cross-sectional view 1 is the outer cylinder, 2 is the blade, 5 is the carburetor, 6 is the air purifier body, and 7 is the air filter.

Claims (1)

[Scope of Claims] A fixed vane, a protrusion having a reed, or a groove having a reed, which is installed or processed between the start end of the intake air and the end end of the exhaust air of an internal combustion engine to create a vortex in the exhaust air.