JPS6330488B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing misignition of lean fuel in an automobile engine using gasoline as fuel.

The present inventor previously invented a method for preventing misignition of lean fuel in an automobile engine that uses gasoline as fuel. [Patent Application No. 52-38922 (Japanese Patent Application No. 53-123709)
The technical idea is to control exhaust gas emissions at the point when acceleration is finished by using a switch that closes the contact when the accelerator pedal is pressed in the direction that it is pressed, and opens the contact when it is pressed in the opposite direction. This is a characteristic feature.

The present invention relates to the above-mentioned switch [Utility Model Registration No.
843881 (Utility Model Registration No. 42-16162) or Utility Model Registration No. 979805 (Utility Model Registration No. 979805 (Utility Model Publication No. 47-4644)) When acceleration is finished, the exhaust is removed by exhaust resistance. The present invention relates to an ignition error prevention device that has a structure in which the ignition error remains in the combustion chamber.

The distillation temperature of gasoline currently used for automobiles is approximately 40°C to 200°C, and it is made up of a light part that vaporizes quickly and a heavy part that vaporizes slowly. The only part that completely vaporizes is the amount distilled at around 50°C.

When fuel with these properties is drawn into the combustion chamber along with air, some 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 pushes the adhering fuel film against the inner wall, causing it to become trapped. Then the exhaust valve opens,
When the explosive gas is discharged and the pressure inside the combustion chamber decreases,
The vaporizable surfaces of the sandwiched membranes vaporize 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.

An object of the present invention is to implement the above-mentioned method for preventing ignition errors with an extremely simple structure, and to obtain a device with very good combustion in which carbon does not adhere to the inner wall of the exhaust pipe.

Therefore, the present invention pivots an exhaust resistance plate obliquely inside an exhaust pipe or a pipe of any shape connected to the exhaust pipe,
This is a device for preventing misignition of lean fuel in a gasoline-fueled automobile engine, characterized in that an electromagnet equipped with a weight rod for holding the exhaust resistance plate in a closed position is installed on one end of the electromagnet.

Next, a specific example of the ignition error prevention device according to the present invention will be explained with reference to the drawings.

In the figure, reference numeral 1 denotes an exhaust pipe, into which an elliptical exhaust resistance plate 2 for restricting exhaust gas is pivoted obliquely by a shaft 3. Reference numeral 4 denotes a weight rod that presses one end of the exhaust resistance plate 2 into a closed state by its own weight, and a weak coil spring 6 installed inside the solenoid 5 installed upright in the exhaust pipe 1 is compressed between the weight rod 4 and the closing plate 7 of the solenoid. Set up Reference numeral 8 denotes an opening limit member for the exhaust resistance plate 2, which is provided because the exhaust resistance plate 2 does not need to be fully opened, and does not necessarily need to be attached.

There are two types of switches that operate the resistance plate 2.
One type uses permanent magnets, but in this example, the utility model registration method does not use permanent magnets.
The one shown in No. 979805 is illustrated. That is, in this switch 10, a movable contact 9' provided in correspondence with a fixed contact 9 communicating with the solenoid 5 is fixed to one end surface of the movable body 11, and closes when the accelerator pedal 12 connected to the movable body 11 is stepped on. When it is in the opposite direction, it acts to open. Therefore, the movable body 11 penetrates the elongated hole 15 of the sliding member 14 with the screw 13, inserts the abutment piece 16 into the tip of the screw, and fixes this with the nut 17, bringing the abutment piece 16 into light pressure contact with the sliding member 14, and then sliding Moving member 1
4 causes the movable body 11 to cooperate and after the movable contact 10 comes into contact with the fixed contact 9, only the sliding member 14 moves as it is, stops pressing the accelerator pedal, and if the accelerator pedal is loosened slightly, both contacts are released. Performs an opening action. 18 is a coil, and 19 is a power source.

The present invention has the above-mentioned configuration, and when the accelerator pedal is in an accelerating state, the contact of the switch is closed in any case, and the weight rod is raised. At the same time, the exhaust resistance plate is also attracted by the magnetic force at the tip of the weight rod, and the exhaust resistance plate is also attracted by the magnetic force at the tip of the weight rod. The resistance plate opens and the air is exhausted without exhaust resistance.

Next, when you finish accelerating, press the accelerator pedal 1
If it is loosened even by 1 mm, the contact will break and the weight rod will descend and press the exhaust resistance plate, allowing the exhaust gas to remain in the engine through the exhaust resistance plate, greatly reducing nitrogen oxides and hydrocarbons. This also prevents carbon from adhering to the inner wall of the exhaust pipe. This is to assist combustion with the remaining exhaust gas.

When an automobile manufacturer implements the present invention, it is appropriate to install the device between the exhaust manifold and the muffler. In addition, long-term experiments conducted by the inventor have demonstrated that the fuel economy is extremely high.

[Brief explanation of drawings]

The drawings show an embodiment of the device for preventing misignition of lean fuel in a gasoline-fueled automobile engine according to the present invention, in which FIG. 1 is a longitudinal side view, FIG. 2 is a plan view, and FIG. The front view of the switch used in the device shown in FIG. 4 is also a partial sectional view. 1... Exhaust pipe, 2... Exhaust resistance plate, 4... Weight rod, 5... Solenoid, 10... Switch.

Claims (1)

[Claims] 1. An exhaust resistance plate is obliquely pivoted inside the exhaust pipe or a pipe of any shape connected to the exhaust pipe, and on one end of the plate,
A device for preventing misignition of lean fuel in an automobile engine using gasoline as fuel, characterized in that an electromagnet equipped with a weight rod for holding the exhaust resistance plate in a closed position is installed.