Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
  • F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M37/0047—Layout or arrangement of systems for feeding fuel
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M37/04—Feeding by means of driven pumps
  • F02M37/08—Feeding by means of driven pumps electrically driven
  • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir

Definitions

• the present invention relates to an apparatus for automatically controlling supply of fuel for a motor vehicle arranged between a liquid fuel tank of the motor vehicle and an engine. More particularly, the present invention relates to an apparatus for automatically controlling supply of fuel for a motor vehicle capable of accomplishing appropriate amount of the fuel supply based on the intake of the fuel into the engine by means of the buffering action at an air layer in an air buffering chamber in the apparatus of the present invention to fuel pressures, such as fuel pump pressure caused by the operation of the fuel pump in the liquid fuel tank, liquid fuel load pressure, the liquid fuel flowing pressure or the like, with the results that there not occur an abnormal condition of the engine, the unnecessarily supplied amount of the fuel is saved, the excessive fuel is fed back into the liquid fuel tank, the perfect combustion in the combustion chamber of the engine is accomplished by virtue of the stabilized supply of the fuel, the discharged gas is decreased, the output of power is increased during the driving of the motor vehicle, the noise is decreased due to the harmonization of the explosion sound, and the expected life span of the engine is extremely increased since the
• An apparatus for supplying fuel of the liquid fuel tank of the motor vehicle is disclosed from Korean Patent No. 273168 (registered on September 1, 2000), the invention of which is made by the inventor of the present application. According to the aforesaid patent, the apparatus for supplying fuel is mounted separately from the liquid fuel tank. The fuel, which passes through a tube for controlling oil pressure in an oil reservoir, is supplied into a combustion chamber of the engine.
• a plurality of disks each of which has a oil inlet hole formed therein and a plurality of spacers are arranged alternately one on another in the tube for controlling oil pressure, so that an oil passage chamber is defined between the upper and lower disks.
• additional air buffering chamber is provided at the lower part of the disks, with a result that a fuel supply chamber is only provided.
• the buffering action of the air layer is insignificant, the fuel is not supplied at the fixed rate, and the automatic control of the fuel supply is not carried out smoothly.
• the fuel pump of the liquid fuel tank is operated to supply constantly the fuel pressure even when the motor vehicle is stopped or driven at the lower speed, the excessive liquid fuel pressure is accumulated in the oil reservoir. As a result, it is not possible to control the fuel pressure smoothly in the tube for controlling oil pressure.
• an apparatus for automatically controlling supply of fuel for a motor vehicle comprising a plurality of fuel passages in the form of multi-layers with small gaps, said fuel passages being defined between a plurality of disks each of which has an oil hole and a plurality of spacers such that the disks and the spacers are disposed alternately one on another in a fuel chamber in an oil reservoir, by which a fuel pump of a liquid fuel tank and a combustion chamber of an engine are connected to each other, characterized in that ring-shaped fixing members are formed one on another at the lowest of the disks to define an air buffering chamber forming an air layer, a flange of a fuel supply unit is mounted at the circumferences thereof to said lower ring-shaped fixing member by means of several threaded bars and nuts, that supporters of the same size as the ring- shaped fixing members are connected to the middle of the lower surface of the lowest disk in the center of a fuel supply chamber of the fuel supply unit such that a fuel inlet pipe is formed
• the liquid fuel in the liquid fuel tank is supplied into the fuel chamber of the oil reservoir via the fuel hose and the fuel supply pipe by operation of the fuel pump mounted in the liquid fuel tank.
• the fuel pump mounted in the liquid fuel tank By virtue of the intake and explosion action of the piston in the engine, when the fuel is supplied into the combustion chamber, the fuel supplied into the fuel chamber of the oil reservoir is passed along the wide and long fuel passages defined by a plurality of the disk, and the ring- shaped spacers mounted alternately with the disk, and through the oil holes formed diagonally in the disks, so that the molecules of the fuel are diffused by means of a plurality of the disks and stabilized.
• the air layer of the air buffering chamber established between the ring-shaped fixing members and the supporters mounted about the fuel inlet pipe relieves the fuel pump pressure, the liquid fuel load pressure and the liquid fuel flowing pressure by the physical buffering action when it is supplied into the fuel supply chamber of the fuel supply unit.
• the fuel can be supplied into the combustion chamber of the engine stably and smoothly.
• the amount of the fuel supplied from the fuel supply chamber of the fuel supply unit to the fuel inlet pipe is supplied only with the amount of the intake by means of the piston action of the combustion chamber of the engine, it is possible to accomplish the prefect combustion in the combustion chamber of the engine of the motor vehicle, to prevent the excessive supply of the fuel, and to carry out the automatic control for the appropriate supply of the fuel. As a result, the unnecessarily supplied amount of the fuel is saved. Besides, when the excessive fuel pressure is generated in the fuel chamber of the oil reservoir, the excessive fuel pressure is fed back into the liquid fuel tank via the fuel pressure feedback pipe, whereby it is possible to control smoothly the amount of the supply of the fuel in the oil reservoir.
• Fig. 1 is a front view partly in section showing a fuel supply path between a liquid fuel tank and an engine according to the present invention
• Fig. 2 is an enlarged longitudinal sectional view of essential parts of the present invention
• Fig. 3 is a cross sectional view taken along line A-A of Fig. 2;
• Fig. 4 is a cross sectional view taken along line B-B of Fig. 2.
• a plurality of disks 3, 3' and 3" Inside a oil reservoir 1, which is closed by means of a top lid 2, is arranged a plurality of disks 3, 3' and 3". Between the disks 3, 3' and 3" are inserted a plurality of ring-shaped spacers 4, 4' and 4" at the circumferences of the disks, such that the disks and the spacers are disposed alternately one on another. Between the upper and lower disks 3, 3' and 3" are formed fuel passages 5 with small gaps. Each of disks 3, 3' and 3" is provided with oil holes 6 and 6' , which are formed diagonally, so that the fuel passages 5 are extended in the width and length thereof.
• 3' and 3" are arranged a plurality of ring-shaped fixing members 7 and 1' of the same size.
• a flange 10' of a fuel supply unit 10 To the lowest ring-shaped fixing member 7 is mounted closely a flange 10' of a fuel supply unit 10. Ant the circumferences of the upper spacer 4 and the flange 10' of the lower fuel supply unit 10 are combined by means of a plurality of threaded bars 11 and 11' and nuts 12, such that a air buffering chamber is defined in the ring-shaped fixing members 7 and 7' .
• supporters 15 and 15' of the same size as the ring-shaped fixing members 7 and 7' are mounted to the lowest disk 3, such that a fuel inlet pipe 16 is formed through the middle portion of the disks 3 and the fuel passages 5 vertically. And they are finally combined by means of upper and lower nuts 12' and 12".
• a bent pipe 17 is connected to the upper end of the fuel inlet pipe 16, which is in turn connected to a fuel discharge pipe 18 for supplying the fuel into a combustion chamber 31 of an engine 30.
• the fuel discharge pipe 18 is connected to a fuel hose 19' .
• a fuel supply pipe 20 which is in turn connected to a fuel pump 22 of a liquid fuel tank 21 via a fuel hose 19.
• a fuel pressure feedback pipe 23 which is connected to the liquid fuel tank 21 via a fuel hose 19a so that the excessive fuel pressure is fed back into the liquid fuel tank 21 during the supply of the fuel.
• the oil reservoir 1 which is the apparatus for automatically controlling the supply of the fuel according to the present invention, is arranged between the fuel pump 22 of the liquid fuel tank 21 and the combustion chamber 31 of the engine 30.
• Each of the fuel hoses 19, 19' and 19" is connected to the fuel supply pipe 20, the fuel discharge pipe 18 and the fuel pressure feedback pipe 23, respectively.
• the liquid fuel in the liquid fuel tank 21 is supplied into the fuel chamber 9 of the oil reservoir 1 via the fuel hose 19 and the fuel supply pipe 20 by operation of the fuel pump 22 mounted in the liquid fuel tank 21.
• the fuel supplied into the fuel chamber 9 of the oil reservoir 1 is passed along the wide and long fuel passages defined by a plurality of the disk 3, 3' and 3", and the ring-shaped spacers 4, 4' and 4" mounted alternately with the disk 3, 3' and 3", and through the oil holes 6 and 6' formed diagonally in the disks 3, 3' and 3", so that the molecules of the fuel are diffused by means of a plurality of the disks 3, 3' and 3" and stabilized.
• the air layer of the air buffering chamber 14 established between the ring-shaped fixing members 7 and 7' and the supporters 15 and 15' mounted about the fuel inlet pipe 16 relieves the fuel pump pressure, the liquid fuel load pressure and the liquid fuel flowing pressure by the physical buffering action when it is supplied into the fuel supply chamber 13 of the fuel supply unit 10. As a result, the fuel can be supplied into the combustion chamber 31 of the engine 30 stably and smoothly.
• the amount of the fuel supplied from the fuel supply chamber 13 of the fuel supply unit 10 to the fuel inlet pipe 16 is supplied only with the amount of the intake by means of the piston action of the combustion chamber 31 of the engine 30, it is possible to accomplish the prefect combustion in the combustion chamber of the engine of the motor vehicle, to prevent the excessive supply of the fuel, and to carry out the automatic control for the appropriate supply of the fuel. As a result, the unnecessarily supplied amount of the fuel is saved. Besides, when the excessive fuel pressure is generated in the fuel chamber 9 of the oil reservoir 1, the excessive fuel pressure is fed back into the liquid fuel tank 21 via the fuel pressure feedback pipe 23, whereby it is possible to control smoothly the amount of the supply of the fuel in the oil reservoir 1.
• the present invention when the motor vehicle is driven at either lower speed or higher speed, there not happen irregular supply of the fuel due to shaking of the body of the motor vehicle and the liquid fuel load pressure and the liquid fuel flowing pressure in the liquid fuel tank 21, and a appropriate amount of the fuel is supplied under the stabilized condition. As a result, the amount of discharge of the exhaust fumes is little due to the prefect combustion in the combustion chamber 31 of the engine 30 of the motor vehicle, and the output of power is increased.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
• Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19696810

Family Applications (1)

Country Status (4)

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Citations (1)

Family Cites Families (2)

• 2000
  • 2000-11-02 KR KR10-2000-0064806A patent/KR100378510B1/ko not_active IP Right Cessation
• 2001
  • 2001-01-16 WO PCT/KR2001/000063 patent/WO2002036957A1/en active Application Filing
  • 2001-01-16 AU AU2001228884A patent/AU2001228884A1/en not_active Abandoned
  • 2001-02-27 CN CNB011083042A patent/CN1157533C/zh not_active Expired - Fee Related

Patent Citations (1)

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