Internal-combustion engines – Charge forming device – Combustible mixture ionization – ozonation – or electrolysis
Reexamination Certificate
1999-07-20
2001-04-24
McMahon, Marguerite (Department: 3747)
Internal-combustion engines
Charge forming device
Combustible mixture ionization, ozonation, or electrolysis
Reexamination Certificate
active
06220231
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a combustion improving device and a combustion improving method using magnetism, which acts in a fuel feeding path for a Diesel engine and a gasoline engine with the aim of improving the combustions thereof.
JP-B-03030718 (Japanese Patent Examined Publication H3-30718) and JP-Y2-04021810 (Japanese Utility Model Examined Publication H4-21810) show devices in which a plurality of permanent magnets are fixed in a cylindrical casing in a combination to repulse each other and in which an inlet port and an outlet port are individually formed generally at centers of two bottom faces of the cylindrical casing so that a fuel may pass through the ports in the magnets or between the magnets.
In JP-U-3012313 (Japanese Utility Model Unexamined Registration 3012313 or Japanese Utility Model Application H6-16287), a fuel passage between magnetic poles of permanent magnets is filled with granular ceramics.
In the above prior art, however, the effect to improve the combustion has not been sufficient but has been frequently lost depending upon the type or displacement of the engine or the mode of using the combustion improving device. The following problems have arisen especially when a Diesel engine is used: (1) No effect is found; (2) Sooty smoke increases all the worse; (3) Running of the engine is unstable at idling mode; (4) The engine output decreases all the worse; (5) Running of the engine may become unstable and might stop; and (6) The engine will not start in some cases.
The aforementioned devices of the prior art have structures in which the air may reside in a combustion improving device to form relatively coarse air bubbles. When this happens, the air to fuel ratio in the engine combustion chamber deviates to cause an abnormal combustion.
It is therefore an object of the present invention to provide a combustion improving device and a combustion improving method, which can exhibit a combustion improving effect in a variety of engines without adverse effects such as forming the air bubbles.
SUMMARY OF THE INVENTION
According to the invention, there is provided a combustion improving device for an engine, comprising a fuel passage between magnetic poles arranged to confront each other, and disposed in a fuel feeding path from a fuel tank to the engine, characterized in that a magnetic force per unit area to act between said confronting magnetic poles is 0.15 kgf/cm
2
or more; in that a distance between the confronting magnetic poles is within such a range that the magnetic force between the confronting magnetic poles increases substantially in proportion to the decrease in said distance; and in that the time period for a fuel to pass between the confronting magnetic poles is 1.7 seconds or more.
Due to the above construction, the combustion of an internal combustion engine, such as a Diesel engine, can be improved to reduce noxious emissions such as sooty smoke or nitrogen oxides especially.
According to a further feature of the invention, there is provided a combustion improving device for an engine, comprising a fuel passage between magnetic poles arranged to confront each other, and disposed in a fuel feeding path from a fuel tank to the engine, characterized in that a quantity calculated by dividing a magnetic force per unit area between the confronting magnetic poles by a distance between the confronting magnetic poles is 0.20 kgf/cm
3
or more; in that the distance between the confronting magnetic poles is within such a range that the magnetic force between the confronting magnetic poles increases substantially in proportion to a decrease in said distance; and in that a time period for a fuel to pass between the confronting magnetic poles is 1.7 seconds or more.
According to another feature of the invention, there is provided a combustion improving device for an engine, comprising a fuel passage between magnetic poles arranged to confront each other, and disposed in a fuel feeding path from a fuel tank to the engine, characterized in that a product between a magnetic force per unit area between the confronting magnetic poles and a time period for a fuel to pass through the confronting magnetic poles is (0.15 kgf/cm
2
)×(1.7 seconds) or more; and in that a distance between the confronting magnetic poles is within such a range that the magnetic force between the confronting magnetic poles increases substantially in proportion to a decrease in the distance.
According to another feature, there is provided a combustion improving device for an engine as set forth in above, characterized in that a fuel outlet port is formed in a wall generally parallel to the fuel passage and arranged at the uppermost portion.
Due to this construction, no air bubble resides in the fuel liquid in the combustion improving device so that no fine air bubbles will be collected to grow to coarse air bubbles thereby to prevent the combustion trouble which might otherwise be caused by feeding the coarse air bubbles entrained in the fuel to the engine combustion chamber.
According to still another feature, there is provided a combustion improving method for an engine, characterized in that a fuel is caused, when fed from a fuel tank to an engine, to pass through a gap between magnetic poles arranged in proximity to confront each other; and in that a magnetic force per unit area to act between the confronting magnetic poles is 0.15 kgf/cm
3
or more; and in that a time period for the fuel to pass between the confronting magnetic poles is 1.7 seconds or more.
Due to this construction, the combustion of the internal combustion engine can be improved to reduce the noxious emissions.
REFERENCES:
patent: 4372852 (1983-02-01), Kovacs
patent: 5070852 (1991-12-01), Po et al.
patent: 5271369 (1993-12-01), Melendrez
patent: 5520158 (1996-05-01), Williamson
patent: 5558765 (1996-09-01), Twardzik
patent: 5664546 (1997-09-01), De La Torre Barreiro
patent: 5816226 (1998-10-01), Jernigan et al.
patent: 5992398 (1999-11-01), Ho
patent: 6000382 (1999-12-01), Albisetti
patent: 48-21004 (1973-06-01), None
patent: 55-153850 (1980-12-01), None
patent: 58-25561 (1983-02-01), None
patent: 60-78849 (1985-06-01), None
patent: 6-264835 (1994-09-01), None
patent: 8-14121 (1996-01-01), None
Big Bang Co., Ltd.
Jordan and Hamburg LLP
McMahon Marguerite
LandOfFree
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