JPS6038541B2 - Method for preventing ignition errors of lean fuel in gasoline-fueled automobile engines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing misignition of lean fuel in a gasoline-fueled automobile engine.

An object of the present invention is to effectively burn hydrocarbons mixed in exhaust gas emitted from an engine as energy, reduce pollution by that amount, and decisively prevent ignition errors.

In order to satisfy the above object, the present invention closes the contact during acceleration in the direction in which the accelerator pedal is depressed, and when the accelerator pedal is pressed in the direction opposite to the direction in which the accelerator pedal is depressed, including when the accelerator pedal is slightly loosened from the direction in which the accelerator pedal is depressed. The control circuit includes a switch that opens the contact at times other than when accelerating, and this control circuit opens the restriction plate provided in the exhaust pipe only during acceleration.
It is closed except when accelerating, and exhaust gas is restricted from being discharged when acceleration is complete.

The gasoline currently used for automobiles is produced at a distillation temperature of about 4,030 to 20,000, and is made up of a light part that vaporizes quickly and a heavy part that vaporizes slowly, so it is completely vaporized by a vaporizer. The part to do is 50
It is only the amount distilled around qo. When fuel having the above properties is drawn into the combustion chamber together with air, a portion of the mist fuel adheres to the inner wall of the combustion chamber, and this adhesion causes the mist to overlap, forming a thin liquid film.

When compression, ignition, and explosion occur in this state, the pressure of the high-temperature explosive gas presses the adhering fuel film against the inner wall, causing it to become trapped. Then, when the exhaust valve opens and the explosive gas is discharged and the pressure in the combustion chamber decreases, the easily vaporized surface of the sandwiched membrane vaporizes due to the reduced pressure. However, since the oxygen has already been consumed due to the explosion, it cannot be combusted and is emitted as raw gas along with the exhaust gas. At the end of acceleration, for example, 40, 50, 60, 70, 80,
This system controls the exhaust gas discharge when the engine moves to constant speed using the 90 or 100 rudder, and the raw gas discharged at the end of the exhaust remains in the combustion chamber, where it is mixed into the next air-fuel mixture and combusted. Therefore, there is no reduction in acceleration power at all.

In addition, since the remaining gas is completely gasified, subsequent combustion is good, and ignition errors do not occur even at a thin air ratio. However, it is possible that the temperature of the combustion chamber increases due to exhaust control (exhaust resistance) during constant speed driving, but this depends on the degree of exhaust control. For example, you can understand the extent of this by covering the exit of the exhaust pipe with gauze and conducting a driving experiment. The results of this experiment showed that there was no abnormality at all under constant speed up to 80 mph, but when accelerating, the acceleration force seemed to decrease due to the resistance of the gauze. Furthermore, when the water temperature reaches 95 qo or more, the exhaust control is canceled. Next, a specific example of the method for preventing ignition errors in an automobile engine using gasoline as fuel according to the present invention will be explained.

In the figure, 1 is an accelerator pedal, and 2 is a switch that connects to the accelerator pedal.When the accelerator pedal is depressed using the structure of Utility Model Registration No. 843881 (Utility Model Registration No. 16162-1971) devised by the present inventor, The magnetically absorbing operating member 3, such as a metal plate, is moved sideways and installed in the cabinet 4, and the permanent magnet 14 that is attracted to the magnetically absorbing operating member 3 slides, and the contact point 15 integrated therewith is attached to the inner wall of the cabinet 4. When the accelerator pedal is further depressed to close the circuit, both contacts remain in contact and only the magnetically absorbing operating member 3 slides, and even if the accelerator pedal is slightly loosened, both contacts 15 and 16 The structure is such that the open road is cut off at a distance. The switch 2 is connected to an electromagnet 7 attached to an exhaust pipe 6 by a conductor wire passing through a bimetallic exhaust control release device 5 for preventing overheating of the exhaust pipe. 8 is a coil, 9 is a power supply, and the switch 2, electromagnet 7, coil 9, etc. constitute a control circuit.

A restriction plate 10 is installed in the exhaust pipe 6 to restrict exhaust gas.
The restricting plate 10 has several small holes 12 bored therein, and screws 13 for adjusting occlusion are screwed onto the exhaust pipe 6.

17 is a link mechanism connecting the iron D18 of the electromagnet 7 and the restriction plate 10, and 19 is a wheel weight for adjusting the link mechanism.

Bimetal exhaust control release device is radiator hose 2
This is a kind of safety device that prevents overheating of the exhaust pipe by opening the restriction plate 10 when the temperature of the hose reaches 95 degrees or higher. During acceleration, the switch is closed and the restriction plate is open, and when acceleration is finished, even if the accelerator pedal is slightly released, the switch is turned off and the restriction plate is closed.

Therefore, the hydrocarbons discharged at the final stage of exhaust remain in the engine due to the restriction plate. Since the hydrocarbons can be combusted with the oxygen of the next intake air-fuel mixture, the hydrocarbons can be used as energy and have the special effect of reducing pollution. Incidentally, as shown in FIG. 6, a bypass pipe 6' is provided in the exhaust pipe 6 and filled with a substance 21 having a catalytic action and other resistive substances, so that the exhaust gas can be further normalized by the catalyst.

That is, in the present invention, the restriction plate is opened only during acceleration, and is closed at other times regardless of the speed of the vehicle, thereby reliably preventing ignition errors of lean fuel.

[Brief explanation of drawings]

The drawings show an embodiment of the method for preventing lean fuel ignition errors in a gasoline-fueled automobile engine according to the present invention; FIG. 1 is an explanatory diagram;
Figure 2 is a plan view of the exhaust pipe section, Figure 3 is a side view,
Figure 4 is a longitudinal side view with the electromagnet removed. FIG. 5 is a front view of the switch, and FIG. 6 is a longitudinal sectional side view showing a modification of FIG. 2. 1... accelerator pedal, 2...
...Switch, 7...Electromagnet, 10...Restriction plate. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1 The contact is closed when accelerating in the direction in which the accelerator pedal is depressed, and the contact is opened except when accelerating in the opposite direction to the direction in which the accelerator pedal is depressed, including when the accelerator pedal is slightly loosened from the direction in which the accelerator pedal is depressed. Equipped with a control circuit that includes a switch, this control circuit opens a restriction plate installed in the exhaust pipe only during acceleration, closes it when not accelerating, and exhaust gas is discharged when acceleration is finished. 1. A method for preventing ignition errors of lean fuel in an automobile engine using gasoline as fuel, characterized in that the ignition error is limited.