JPS6314243B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device for burning fuel gas in a combustion section of an internal combustion engine installed in an automobile, for example.

In the following, an example will be explained in which LPG gas is used as fuel and is combusted by an internal combustion engine installed in a car. Cars are equipped with LPG gas cylinders,
LPG gas is supplied from this cylinder to a mixer via a fuel flow path having a vaporizer, etc., and the mixer mixes LPG gas with air flowing through the intake passage and inhales it into the combustion chamber of the cylinder of the internal combustion engine. It's burning. However, the means for improving the combustion of LPG gas in the fuel flow path is
This has not been particularly studied in the past. On the other hand, recently,
Fuel gas such as LPG gas has become expensive, and there is a strong demand for improving the combustion of fuel gas in order to save resources.

SUMMARY OF THE INVENTION In response to the above-mentioned needs, it is an object of the present invention to provide a fuel gas combustion device that can improve fuel efficiency by simply installing a permanent magnet in a fuel flow path.

That is, in the combustion device according to the present invention, a case that also serves as a yoke and has a fuel passage connected to the fuel passage at both ends is inserted in a part of the fuel passage, and a permanent magnet is fixed inside the case. A fuel passage is formed between the N-pole and S-pole faces of the permanent magnet and the inner circumferential surface of the case facing them, so that the fuel flowing through this passage is orthogonal to the magnetic flux, and the fuel of the permanent magnet The present invention is characterized in that the proximal end portions of guide members each having a substantially trapezoidal horizontal cross section whose distal end width gradually decreases are fixed to both ends in the flow direction.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In Figure 1, 1 is installed in a car.
This cylinder is an LPG gas cylinder, and this cylinder communicates with a mixer 5 through a fuel passage 4 having a solenoid unit 2 and a vapor riser 3.
One end of the intake passage 5a is communicated with an air cleaner, and the other end is communicated with a combustion chamber provided in a cylinder of an internal combustion engine via an intake valve.

A permanent magnet device 6, which will be described later, is inserted between the vaporizer 3 and the mixer 5 in the fuel flow path 4. As shown in FIGS. 2 and 4, in the permanent magnet device 6, a permanent magnet 8 is fixed in a case 7 that also serves as a substantially cylindrical yoke, and fuel passages 9 are formed on both sides of the permanent magnet 8. The base end portions of guide members 10 each having a substantially trapezoidal horizontal cross section whose width at the tip portion gradually decreases are fixed to both ends of the permanent magnet 8, respectively. Both ends of the case 7 are connected to a hose forming a portion of the fuel flow path 4 between the vaporizer 3 and the mixer 5 via hose fittings (not shown). The case 7, which also serves as the yoke, is made of a magnetically conductive metal such as iron, the permanent magnet 8 is made of a material that can obtain a high magnetic flux density, such as one made of iron containing either samarium or neodymium, and the hose cap is made of a material that can obtain a large magnetic flux density. Made of non-magnetically conductive material. In addition,
FIG. 4 is a longitudinal sectional view taken along the line - in FIG. 3, and shows a fuel passage 9 formed between the N-pole surface 8a and the S-pole surface 8b of the permanent magnet 8 and the inner peripheral surface of the case.
2 shows a state in which magnetic flux acts in a direction perpendicular to the direction of fuel flow.

In order to burn LPG gas in the apparatus of the embodiment configured as described above, air is sucked from the air cleaner through the intake passage 5a by the cylinder's suction negative pressure due to the operation of the internal combustion engine, and this air is passed through the nozzle of the mixer 5. 5b, LPG gas is supplied to create a mixture, and when the intake valve is opened, this mixture is supplied to the combustion chamber of the cylinder and ignited and combusted by the spark plug. The same is true. Also, by mixing with air, mixer 5
As the LPG gas in the mixer 5 decreases, LPG gas is replenished from the LPG gas cylinder 1 through the solenoid unit 2 and vaporizer 3 into the mixer 5. In this case, a permanent magnet device 6 is provided between the vaporizer 3 and the mixer 5 in the fuel flow path 4, and the permanent magnet 8 of this device 6 applies a magnetic field of 2000 to 10000 Gauss to the LPG gas flowing in the fuel path 9. , LPG
It acts almost perpendicular to the gas flow. The gasoline subjected to this magnetic field is guided into the mixer 5,
Furthermore, as mentioned above, it is combusted in the combustion chamber of the cylinder.

In this embodiment, compared to the case where the permanent magnet 8 is not provided, that is, the magnetic field is not applied to the LPG gas,
When tested on the same car, it was found that fuel efficiency improved by approximately 10% and LPG gas was combusted well.

In addition, in this example, it is preferable to press-fit the hose cap screwed into the case of the permanent magnet device and tighten it into the hose of the fuel flow path, and tighten it with a hose band from the outer periphery of the hose. It is necessary to use a membrane or LPG leak tester.

This invention is applicable not only to the case of burning LPG gas in the internal combustion engine described above, but also to the case of burning propane gas or city gas in the combustion section of various burners. This method can be applied by providing a permanent magnet device near the mixing part, which can improve fuel efficiency and combustion.

As explained above, the combustion device of the present invention is
A permanent magnet is provided in a case inserted in a part of the fuel passage, and the permanent magnet applies a magnetic field to the fuel gas flowing through the fuel passage formed in the case, making it suitable for combustion. The present invention has the advantage that a combustion device with a simple configuration and a slight modification to a conventional device can be easily provided. In addition, the permanent magnets installed in the case fixed the proximal ends of guide members with an approximately trapezoidal flat cross section whose width at the tip gradually decreases at both ends, and fuel passages were formed on both sides. Therefore, the fuel gas flowing inside the case is gradually constricted by the guide member at the inlet and guided to the passages on both sides.In these passages, the direction of the magnetic flux is perpendicular to the direction of flow of the fuel gas, so the magnetic flux is strong. The magnetic field acts almost uniformly over the entire passage, and the cross-sectional area of the passage is enlarged at the outlet, resulting in a low flow resistance.

[Brief explanation of the drawing]

FIG. 1 is a schematic structural explanatory diagram of essential parts showing an embodiment of the present invention, FIG. 2 is a side sectional view of a permanent magnet device of the same embodiment, and FIG. 3 is a sectional view taken along the line - FIG. 4 is a longitudinal sectional view taken along the line - in FIG. 3. 1... LPG gas, 3... vaporizer,
4... Fuel flow path, 5... Mixer, 6... Permanent magnet device, 7... Case, 8... Permanent magnet, 9...
Fuel passage, 10...guiding member. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1 A case that also serves as a yoke and has a fuel passage connected to the fuel passage at both ends is inserted into a part of the fuel passage, a permanent magnet is fixed inside this case, and the N and S poles of this permanent magnet are fixed. A fuel passage is formed between the surfaces of the permanent magnets and the inner circumferential surface of the case facing these so that the fuel flowing through the passage is perpendicular to the magnetic flux, and a tip width is formed at both ends of the permanent magnet in the fuel flow direction. 1. A fuel gas combustion device characterized in that guide members each having a substantially trapezoidal horizontal cross section that gradually becomes smaller have respective base ends fixed to each other.