Method for improving combustibility of liquid fuel

A method of improving in the combustibility of gasoline by injecting oxygen gas into gasoline in the stationary or flowing state under a magnetic field. The gasoline treated by the method has an ability to prolong the running time of an internal combustion engine 3% to 4% longer under the same conditions than the untreated gasoline.

TECHNICAL FIELD 
The invention relates to a treatment for improvement in utilizing of liquid 
fuel and more particularly to a method for increasing combustibility of 
gasoline. 
BACKGROUND ART 
A patent application Ser. No. Sho 52-38075, Pub. No. Sho 53-123403 entitled 
"Method for improvement in liquid fuel", has been filed in Japan by the 
present inventor in which proposed a method for increasing the 
combustibility of gasoline by several percents is proposed, the method 
comprising keeping gasoline for several days under a magnetic field of a 
predetermined intensity. However, it is a problem that the proposed method 
requires too much time to be practicable. 
DISCLOSURE OF THE INVENTION 
The invention as claimed is intended to solve the above problem and provide 
a method capable of instantly improving the combustibility of gasoline. 
Assuming that oxygen in air, because it is highly paramagnetic, gradually 
dissolves into gasoline disposed under a magnetic field to improve its 
combustibility, the inventor has derived a method including a step of 
directly injecting oxygen gas into gasoline under a magnetic field to 
obtain the same effect as in the previous one, and repeated the test of 
direct injection of oxygen gas into gasoline, resulting in reaching the 
present invention. 
The method of the invention comprises the step of directly injecting 
oxygen-containing gas into liquid fuel under a magnetic field to instantly 
improve its combustibility. Gasoline rests or flows inside a receptacle 
surrounded by permanent magnets of at least 700 gauss, preferably more 
than 2000 gauss magnetic flux density and is treated in a manner that 
oxygen gas of less than 1 volume-ratio to the gasoline at atmospheric 
pressure is injected from an oxygen source in a high-pressure cylinder 
into the gasoline in the receptacle. When both the treated and untreated 
gasolines are supplied to an engine to run it under a similar condition, 
the treated one has an improved combustibility to activate the engine at 
least 3% to 4% longer than the untreated one. The magnet can be disposed 
inside the receptacle to produce a magnetic field. The combustibility was 
not improved when the oxygen gas was injected into gasoline without the 
magnetic field. The gasoline, once treated for injection of oxygen gas 
under the magnetic field, sustains its improved combustibility for a long 
time, irrespective of being preserved with or without magnets after the 
treatment. 
In comparison with the previous method requiring much time for treatment of 
gasoline, the inventive method is capable of instantly improving the 
combustibility of gasoline and has such advantages that gasoline is 
unnecessary to be preserved for treatment and that gasoline flowing in a 
pipe-line can easily be treated. 
Further scope of applicability of the present invention will become 
apparent from the detailed description given hereinafter. However, it 
should be understood that the detailed description and specific examples, 
while indicating preferred embodiments of the invention, are given by way 
of illustration only, since various changes and modifications within the 
spirit and scope of the invention will become apparent to those skilled in 
the art from this detailed description.

THE BEST MODE FOR CARRYING OUT THE INVENTION 
The method of the invention will now be explained in connection with the 
examples hereinbelow. 
EXAMPLE 1 
As is seen in FIG. 1, ferrite magnets 2 of about 1,000 gauss magnetic flux 
density are attached to both outside surfaces of a square-built glass 
vessel 1. A pipe 3 extends from a non-illustrated high-pressure oxygen 
source to the inner bottom of the vessel 1. After the vessel 1 has been 
filled with gasoline on the market, oxygen gas is directly injected into 
the gasoline through the pipe 3 for 5 to 10 seconds, thus gasoline treated 
under a magnetic field is obtained. Thereafter, the magnets 2 are removed 
from the vessel 1 and the oxygen gas is injected to fresh gasoline for 10 
seconds, then gasoline treated in the absence of the magnetic field is 
obtained. 
Each of both the treated and an untreated gasolines was supplied to a 
gasoline engine (HONDA EM 300) for measurement of the running time of the 
engine to consume a certain amount of the respective gasolines. On every 
running test the engine was arranged to have a certain initial cylinder 
temperature and a predetermined load. As is seen in FIG. 2, the gasoline 
was directly supplied to the carburetor 6 of the engine 5 from a 
cylindrical funnel 4 through a pipe 9. The running times of the engine 
were measured; one time in which all the supplied gasoline of 50 cc was 
consumed and the other in which the gasoline between upper and lower marks 
7, 8 in the cylindrical funnel 4 was spent. The volume between the marks 
7, 8 in the funnel 4 was arranged to be 30 cc. The start-to-stop time for 
consumption of 50 cc gasoline and the time for consumption of 30 cc 
gasoline were measured and the results are shown in TABLE 1. 
TABLE 1 
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Running Time (second) 
upper: 30cc, lower: 50cc 
Condition of Gasoline 
1 2 3 4 average 
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untreated 303 299 300 302 301 
552 550 554 555 553 
treated with magnet 
310 312 312 -- 311 
injection 10 seconds 
572 571 568 -- 570 
treated with magnet 
312 313 -- -- 313 
injection 5 seconds 
567 573 -- -- 570 
treated without magnet 
300 302 305 -- 302 
injection 10 seconds 
550 550 555 -- 552 
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TABLE 1 shows that the gasoline treated by the inventive method can prolong 
the running time of the engine by 3% to 4% as compared with the untreated 
gasoline and that neither gasoline treated in the absence of the magnet 
nor untreated gasoline has the ability to increase the running time of the 
engine. It is noted that both treated gasolines with and without magnet 
were preserved in vessels without magnets for 24 hours prior to the above 
test. 
EXAMPLE 2 
Oxygen gas was injected for five minutes into gasoline with magnets in the 
same way as in Example 1 to obtain treated gasoline with magnet. The 
treated gasoline was preserved for six days in two vessels; one with 
magnets and the other without magnets. Every two days, engine tests were 
carried out in the same conditions as in Example 1 for measurement of the 
running time of the engine to consume 20 cc of gasoline. The distance 
between the marks 7, 8 was arranged to be equivalent to the volume of 20 
cc. The untreated gasoline was tested twice before and after the test of 
treated gasoline. The test results are shown in TABLE 2. 
TABLE 2 
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Running Time (second) 
Condition of Gasoline 
1 2 3 4 average 
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two days preservation 
untreated, first 
188 189 187 188 188 
untreated, second 
187 189 -- -- 188 
with magnet 199 196 196 -- 197(4.8% up) 
without magnet 
193 198 197 -- 196(4.3% up) 
four days preservation 
untreated, first 
184 188 183 -- 185 
untreated, second 
185 185 -- -- 185 
with magnet 197 191 192 -- 193(4.3% up) 
without magnet 
199 197 193 -- 196(5.9% up) 
six days preservation 
untreated, first 
183 185 187 -- 185 
untreated, second 
185 184 -- -- 185 
with magnet 195 192 192 -- 193(4.3% up) 
without magnet 
190 192 194 -- 192(3.6% up) 
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It is understood from the above TABLE that the gasoline subjected to the 
injection of oxygen gas under the magnetic field sustains the improved 
combustibility for a long time, irrespective of being preserved with or 
without magnet. This is attributed to the fact that the gasoline treated 
with the magnet has oxygen stably dissolved therein, therefore it 
requiring no magnet to maintain such oxygen. 
EXAMPLE 3 
A square-built vessel of 0.5 liter was surrounded by ferrite magnets so as 
to have at the inner surface thereof a magnetic flux density of 2000 
gauss. Oxygen gas of 0.5 liter and 1.0 liter per minute was injected into 
the gasoline in the vessel for 5 minutes with the intervention of a 
regulator valve from an oxygen source in a high pressure cylinder. The 
volume ratios of injected oxygen to the gasoline were 8.3% and 16.7% at 
atmospheric pressure, respectively. The treated and untreated gasolines 
were tested in the same way as in Example 1. The distance between the 
marks 7, 8 in the funnel cylinder was arranged to correspond to 20 cc, and 
the running time of the engine to consume 20 cc of the respective 
gasolines was measured. The results are shown in TABLE 3. 
TABLE 3 
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Running Time of Engine (second) 
Condition of Gasoline 
1 2 3 average 
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untreated, first 187 193 190 190 
treated, oxygen 0.5 lit./min. 
200 202 200 201(5.8% up) 
treated, oxygen 1.0 lit./min. 
198 197 200 200(4.2% up) 
untreated, second 
189 189 193 190 
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EXAMPLE 4 
Two 0.5 liter vessels of 4 cm inner width were surrounded by magnets so as 
to have at their inner surface the respective magnetic flux densities of 
1500 gauss and 700 gauss. Oxygen gas of 8%, by volume to gasoline, was 
injected into the gasoline in each vessel. The treated gasolines were 
tested in the same way as in Example 1. The average increases in the 
running time of the engine were 4.5% and 4% in the respective cases of the 
gasoline treated under 1500 gauss and 700 gauss. 
EXAMPLE 5 
As is seen in FIG. 3, a closed passage 10 made of synthetic plastics having 
a width of 2 cm and a pair of ferrite magnets 11 of about 2500 gauss being 
attached to the both sides is illustrated. A pipe 15 extends from a high 
pressure oxygen cylinder 12 to a porous block 14 disposed on the bottom of 
the passage 10 through a regulator valve 13. Gasoline of 0.5 liter per 
minute flows in and out of the passage 10 through ports as shown by 
arrows. 
Oxygen gas of about 0.5 liter per minute was injected into the gasoline in 
the passage 10 from the cylinder 12 to obtain gasoline treated with 
magnet. Thereafter, the magnets were removed to obtain the gasoline 
treated without magnet. Both the treated gasoline and untreated gasoline 
were tested on the same engine as in Example 1. In the test, the engine 
started at the initial cylinder temperature of 31.degree. C. and idled 
without load. The running times of the engine to consume 50 cc and 25 cc 
of the respective gasolines were measured, the distance between the upper 
and lower marks in the funnel being arranged to be equivalent to the 
volume of 25 cc. The test results are shown in due order in TABLE 4. 
TABLE 4 
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Running 
Time of Engine (second) 
Order Condition of Gasoline 
25cc 50cc 
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1 treated without magnet 
255 495 
2 untreated 253 489 
3 treated without magnet 
260 499 
4 untreated 257 490 
5 treated without magnet 
255 493 
6 untreated 260 501 
7 treated without magnet 
253 488 
8 untreated 258 496 
9 treated with magnet 
270 510 
10 untreated 254 491 
11 treated with magnet 
267 504 
12 untreated 255 489 
13 treated with magnet 
280 510 
14 untreated 252 484 
15 treated with magnet 
277 518 
16 untreated 258 498 
average, treated with magnet 
274 511 
increase over untreated (%) 
7.0 3.9 
average, treated without magnet 
256 494 
increase over untreated (%) 
0 0.4 
average, untreated 256 492 
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TABLE 4 shows that gasoline, even while flowing, improves its 
combustibility in the case of being subjected to the injection of oxygen 
gas under a magnetic field, but not in the case of being treated without 
the magnetic field. 
EXPLOITATION IN INDUSTRY 
The gasoline treated by the method of the invention prolongs the running 
time of engine 3% to 4% longer than the untreated one, therefore being 
capable of economizing the consumption of gasoline to that extent. The 
cost of oxygen gas indispensable to the method is remarkably low as 
compared to the reduction of fuel cost. Accordingly, the inventive method 
is practicable wherever gasoline and engines are used. 
The invention being thus described, it will be obvious that the same may be 
varied in many ways. Such variations are not to be regarded as a departure 
from the spirit and scope of the invention, and all such modifications as 
would be obvious to one skilled in the art are intended to be included 
within the scope of the following claims.