APPARATUS FOR SPRAYING AND AUTOMATICALLY SUPPLYING VEHIELE FUEL

Description

Technical Field

The present invention relates to an apparatus for automatically spraying and supplying a vehicle fuel, which is mounted between a fuel pump of a fuel tank and a combustion chamber of an engine, wherein this apparatus automatically supplying a required amount of fuel by means of a piston suction force instead of a forced supply using the fuel pump of the fuel tank and also makes the liquid fuel be sprayed to the maximum and then automatically supplied so as to greatly increase contact between the fuel and a combustion air to ensure perfect combustion in the combustion chamber, improve output of the vehicle, reduce noise, decrease an exhaust gas from a starting, and reduce consumption of fuel by supplying a suitable amount of fuel without waste.

Background Art

Generally, a fuel is supplied to a combustion chamber of a vehicle engine in a direct forced method by a fuel pump installed in a fuel tank, so a fuel not supplied to the combustion chamber is returned to the fuel tank by means of a piston suction force. In addition, since only the fuel pump supplies the fuel and also applies a fuel pressure, the fuel pressure is always constant regardless of a running speed of the vehicle. Thus, fuel is excessively supplied to the combustion chamber of the engine, which results in imperfect combustion and thus applies a heat more than required to the engine. Thus, an increased amount of carbon dioxide (CO ₂ ) is emitted to the air, and a large amount of hydrocarbon (HC) and carbon monoxide (CO) are generated, thereby acting as a main factor of generation of nitrogen oxide (NOx).

Thus, in order to solve the above problems, the inventor of this application has proposed an apparatus for automatically controlling supply of a vehicle fuel disclosed in Korean Patent Registration No. 278510 and an apparatus for spraying and supplying a vehicle fuel in multi stages disclosed in Korean Patent Filing No. 2005-12218.

In the above automatic vehicle fuel supply controlling apparatus, a liquid fuel is supplied by a fuel pump, and this fuel is supplied to a combustion chamber of an engine via an oil pressure controlling tank having multi stages in an oil supply tank and also via a fuel suction tube in a fuel supply chamber. In addition, circular plates in the oil pressure controlling tank have a plane with a smooth surface, and surrounding spacers are provided between the circular plates for forming a fuel passage. However, since there is no circular part for supporting the center of the circular disks in a ring space, the circular plates are pressed by and come near to upper and lower circular disks due to a fuel pressure applied thereto, thereby disturbing easy pass of the fuel. In addition, the above apparatus does not make sufficient fuel particulates that give an increased contact with an air since the liquid fuel flows fast. Moreover, since the fuel is directly discharged from the fuel absorption tube to the fuel discharge tube, an excessive amount of fuel is supplied, which increases an amount of returning fuel, not suitably for combustion in the combustion chamber of the engine. Korean Patent Filing No. 2005-12218 is designed to solve such problems. In this document, uneven protruded lines and uneven surfaces are formed on spacing plates, which keep a gap between plural oil flowing plates in the oil supply tank. Also, a toothed surface is formed in a middle spacing plate, and a groove line is formed in the fuel absorption tube. In this connection, it is attempted to increase a sprayed state of the fuel while the liquid fuel is flowing, but the above apparatus does not show a satisfactory result. Thus, the present invention is designed to solve drawbacks and defects of the conventional apparatus, mentioned above, and also improved to promote better spraying and supplying of a liquid fuel.

Disclosure

Technical Problem

The present invention is improved for supplying a sprayed fuel so as to increase contact with an air in a combustion chamber of an engine in the following way. A multi-stage oil pressure controlling tank having a spacing plate, an oil flowing plate and a middle spacing plate is provided in an oil supply tank. A multi-stage fuel friction shaft is installed between a fuel discharge tube and an upper combustion chamber installed to an uppermost portion in the oil supply tank, and a fuel friction shaft passing through a fuel suction tube is installed to a center of a lower fuel container so that a liquid fuel flowing along a protruded line formed in the fuel discharge tube and the fuel suction tube undergoes a friction with the multi-stage fuel friction shaft to make the fuel be sprayed such as a bubble to the maximum. In addition, a protruded line is formed in the fuel introduction tube so as to make the liquid fuel introduced into the oil supply tank into particulates. In addition, the spacing plate and the middle spacing plate installed in the oil supply tank with uneven protruded lines and protruded surface also have a toothed surface, and the fuel suction tube has only a groove line. Thus, when the liquid fuel is supplied to the combustion chamber of the engine, the liquid fuel becomes into a sprayed state to the maximum. In addition, since an air layer is formed in the oil supply tank, a required amount of fuel may be supplied according to a piston suction force, not using a forced supplying method using a fuel pump.

Advantageous Effects

Using the present invention as mentioned above, a liquid fuel is made into particulates due to a contact friction by a fuel pressure obtained by the uneven protruded line 10 formed in the oil flowing plates 2, 2', 2" of the oil pressure controlling tank 17 installed in the oil supply tank 1 , the uneven surface 12 of the spacing plates 3, 3', 3", and the toothed surface 12 of the middle spacing plates 4, 4', 4". In addition, the liquid fuel of the fuel supply chamber 15 in the fuel container 14 is firstly sprayed and secondarily sprayed due to the protruded lines

20, 20" and the fuel friction shafts 30, 30' with passing and discharging through the fuel suction tube 18 and the fuel discharge tube 22, so the liquid fuel supplied to the combustion chamber 27 is supplied in a sprayed state to the maximum such as bubbles. In addition, since an air layer is formed in the oil supply tank 1 to give an air pressure in an upper portion of the fuel container 14, a required amount of fuel is just supplied and combusted based on a piston suction force in the combustion chamber 27 of the engine. Thus, the combustion chamber 27 ensures perfect combustion, an output of a vehicle is improved, a noise is reduced, no exhaust gas is generated from the starting, and a suitable amount of fuel is supplied without waste to reduce consumption of fuel.

Description of Drawings

FIG. 1 is a sectional view showing an apparatus of the present invention installed between an fuel tank and a fuel chamber of an engine; and

FIG. 2 is an enlarged sectional view showing the apparatus of the present invention;

FIG. 3 is a developed sectional view showing a fuel friction shaft and a fuel suction tube installed to the fuel container according to the present invention; FIG. 4 is a sectional view showing a fuel friction shaft, a fuel discharge tube and a fuel introduction tube installed to the fuel chamber according to the present invention;

FIG. 5 is a perspective view showing an oil flowing plate according to the present invention; FIG. 6 is a perspective view showing a spacing plate according to the present invention;

FIG. 7 is a perspective view showing a middle spacing plate according to the present invention;

FIG. 8 is a sectional view taken along the line A-A of FIG. 2; FIG. 9 is a sectional view taken along the line B-B of FIG. 2; and

FIG. 10 is a sectional view taken along the line C-C of FIG. 2.

Best Mode

A plurality of oil flowing plates 2, 2', 2" are inserted into a sealed oil supply tank 1 , and a plurality of spacing plates 3, 3', 3" are inserted around each oil flowing plate 2, 2', 2" so as to configure a plate laminate. In addition, middle spacing plates 4. 4', 4" are inserted and fixed between the oil flowing plates 2, 2', 2" together with the surrounding spacing plates 3, 3', 3" so as to configure a multi-layered plate. In addition, uneven protruded lines 10 are formed on the surfaces of the oil flowing plates 2, 2', 2" in a radial direction so as to broaden flows of a liquid fuel so that oil may flow in a wider range. The surrounding spacing plates 3, 3', 3" have uneven surfaces 11 , 11' formed therein to have multi angles so that a contact surface of the liquid fuel is widened to delay flow of the liquid fuel. In addition, teeth 12 having a gear shape are formed in the middle spacing plates 4, 4', 4" so that the liquid fuel generates particulates due to mutual contact and friction when flowing along fuel flowing paths 13, 13'.

In addition, fuel holes 5, 5' are formed in the oil flowing plates 2, 2', 2" at opposite positions so that the liquid fuel flows in a wider surface to delay fuel supply. In addition, ring-shaped spacers 6, 6', 6" and adhering plates 7, T are inserted and laminated in a lower portion of the multi-layered plate having the oil flowing plates 2, 2', 2" so as to configure a fuel passage 28. An adhering plate 9 having an oil injection hole 8 and a fuel container 14 having the fuel supply chamber 15 are closely attached to a lower portion thereof, and rivet nails 16, 16' are screwed thereto to configure an oil pressure controlling tank 17. In addition, a fuel suction tube 18 passing through a support plate 29 is provided to a center portion of the oil pressure controlling tank 17 and screwed by upper and lower nuts 19, 19' to configure a passage 28. A fuel chamber 21 is installed near an upper portion of the fuel suction tube 18 to connect the fuel discharge tube 22 through the fuel chamber 21 so that the fuel chamber 21 is connected to a combustion chamber 27 of a cylinder of the engine 26. In addition, a fuel introduction tube 23 is installed in connection with a fuel pump 25 of a liquid fuel tank 24 so that a liquid fuel is introduced into the oil supply tank 1. In the present invention, protruded

lines 20, 20', 20" are protruded on the inner surface of the fuel suction tube 18, the fuel discharge tube 22 and the fuel introduction tube 23. In addition, multi-stage corn-shaped fuel friction shafts 30, 30' are fixed to the fuel container 14 and the fuel chamber 21 in its upper portion so that the fuel friction shaft 30 is inserted into the fuel suction tube 18 and the fuel friction shaft 30' is inserted into the fuel discharge tube 22 respectively. Thus, when a fuel flows in a zigzag pattern among the fuel friction shafts 30, 30', the fuel suction tube 18 and the fuel discharge tube 22, the fuel is better sprayed due to mutual contact and collision with the protruded lines 20, 20' in the inner surfaces and the protrusions of the multi-stage corn-shaped fuel friction shafts 30, 30'.

In the present invention as mentioned above, when a liquid fuel of the fuel tank 24 is supplied to the oil supply tank 1 through the fuel introduction tube 23 by means of the operation of the fuel pump 25, the liquid fuel is made into particulates due to frictional introduction caused by the protruded line 20" formed in the inner surface of the fuel introduction tube 23. In addition, when a liquid fuel is introduced into the oil injection hole 8 and then introduced to the fuel supply chamber 15 in the fuel container 14 via the fuel passing paths 13, 13' and the passage 28 through the fuel holes 5, 5', the liquid fuel is made into particulates as a sprayed state in the oil pressure controlling tank 17 due to mutual contact and frictional action by means of a fuel pressure caused by the uneven protruded line 10 formed in the oil flowing plates 2, 2', 2", the uneven surfaces 11 , 11' formed in the inner surfaces of the spacing plates 3, 3', 3" and the teeth 12 having a gear shape formed on the outer surfaces of the middle spacing plates 4, 4', 4".

In addition, since an air layer gives an air pressure in an upper portion of the oil supply tank 1 and an upper portion of the fuel container 14, only a required amount of the liquid fuel of the fuel supply chamber 15 in the fuel container 14 is automatically supplied by means of a piston suction force of the combustion chamber 27 in the engine 26.

In addition, when the liquid fuel of the fuel supply chamber 15 in the fuel container 14 is discharged to the fuel discharge tube 22 through the fuel chamber 21 along the fuel suction tube 18 by means of the piston suction force, the liquid

fuel flows through the multi-stage corn-shaped fuel friction shaft 30 stood in the center of the fuel container 14 and inserted into the fuel suction tube 18 and the protruded line 20 formed in the inner surface of the fuel suction tube 18, thereby conducting a first spraying process for increasing a contact with an air due to mutual contact and friction. In addition, when the liquid fuel flows through the fuel discharge tube 22 in the fuel chamber 21 , the firstly sprayed liquid fuel is secondly sprayed due to mutual contact and friction caused by the multi-stage corn-shaped fuel friction shaft 30' inserted into the fuel discharge tube 22 and the protruded line 20' formed in the inner surface of the fuel discharge tube 22. Thus, the liquid fuel supplied by the piston suction force of the combustion chamber 27 is sprayed to the maximum and then supplied.