WO2006116795A1 - Procede et dispositif pour la purge de systeme d'alimentation de carburant - Google Patents

Procede et dispositif pour la purge de systeme d'alimentation de carburant Download PDF

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Publication number
WO2006116795A1
WO2006116795A1 PCT/AU2006/000537 AU2006000537W WO2006116795A1 WO 2006116795 A1 WO2006116795 A1 WO 2006116795A1 AU 2006000537 W AU2006000537 W AU 2006000537W WO 2006116795 A1 WO2006116795 A1 WO 2006116795A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
engine
reservoir
line
purge
Prior art date
Application number
PCT/AU2006/000537
Other languages
English (en)
Inventor
Ramli Bin Isnin
Francis John Collier
Original Assignee
Firepower Technology Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2005902193A external-priority patent/AU2005902193A0/en
Application filed by Firepower Technology Limited filed Critical Firepower Technology Limited
Publication of WO2006116795A1 publication Critical patent/WO2006116795A1/fr

Links

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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition

Definitions

  • the present invention relates to a fuel system purge method and apparatus. More particularly, the method and apparatus of the present invention are intended for use in respect of fuel systems diesel engines.
  • a known problem associated with the operation of engines running on fossil fuels are the deposits of gums, lacquers, varnishes, waxes and carbon which are deposited in the fuel lines, fuel pump, fuel rail, fuel injectors, valves, pistons and cylinder walls of those engines.
  • diesel fuel is prone to the formation of water through condensation whilst in storage as it is hygroscopic.
  • the resulting combination of water and diesel provides an environment that is ideal for the growth of fungal and bacterial populations. This can result in contamination of the fuel and the clogging of filters, injectors and resulting poor performance and production of black smoke during combustion.
  • engines running on diesel contaminated with water and fungus are typified by poor performance, poor fuel economy, difficulties in starting, rough idling and the production of excessive smoke.
  • a fuel system purge method for a diesel engine the method characterised by the method steps of:
  • the ratio of purge fluid to fuel is increased in step (c) to a ratio of about 1 :1.
  • a fuel system purge apparatus comprising at least three reservoirs, each reservoir being provided with a valve by which the content of the reservoir may be fed to a common outlet line.
  • one of the reservoirs is provided with an inlet or return line feeding thereinto.
  • the return line may have provided therein a filter means.
  • the outlet line is provided with a pump means.
  • a first reservoir has provided therein diesel fuel
  • a second reservoir has provided therein a purge fluid
  • a third reservoir is arranged to receive return fuel or fuel/purge fluid mixture from an engine to which the apparatus may be connected.
  • the outlet line of the fuel system purge apparatus is connected to the fuel line of the engine to be purged between the fuel filter and fuel pump.
  • the return line is preferably connected to the fuel line before the fuel tank. Still preferably, the return line is connected to the fuel line on the end of the injector rail.
  • Figure 1 is a diagrammatic representation of the fuel system purge method and apparatus of the present invention.
  • FIG. 1 there is shown a fuel system purge apparatus 10 connected to a fuel system 12.
  • the fuel system purge apparatus 10 comprises a first reservoir 14, a second reservoir 16 and a third reservoir 18.
  • Each reservoir 14, 16 and 18 feeds by way of a respective feed line 20, 22 and 24, into an outlet line 26.
  • the outlet line 26 has provided therein a pump means, for example a diaphragm pump 28.
  • the fuel system purge apparatus 10 further comprises an inlet or return line 30.
  • the return line 30 has provided therein a filter means 32.
  • the return line 30 feeds into the third reservoir 18.
  • Each of the feed lines 20, 22 and 24 are provided with respective valves 34, 36 and 38.
  • the presence of the valves allows the flow of fluid from the reservoirs 14, 16 and 18 to be controlled into the outlet line 26 by an operator.
  • the outlet line 26 is connected to the fuel line 40 of the fuel system 12 after a fuel tank 42, it's associated fuel filter (not shown) and before a fuel injection pump 44, as can be seen in Figure 1.
  • the fuel line 40, from the fuel injection pump 44 passes to injection nozzles 46. From the injection nozzles 46
  • the outlet line 26 and return line 30 are connected, as described above with reference to Figure 1 , to that fuel system 12.
  • the first reservoir 14 is filled with diesel fuel whilst the second reservoir 16 is filled with a purge fluid.
  • An appropriate purge fluid is that sold under the trade name Firepower Purge Fluid. This product is a blend of hydrocarbon based fluids that act to remove harmful deposits from fuel delivery systems.
  • the third reservoir 18 is arranged to receive return fuel or return fuel/purge fluid mix from the fuel system 12 by way of return line 30.
  • the mechanically experienced operator will typically observe the third reservoir 18 and determine when it is approximately half full of clean fuel that has been passed through the fuel system 12 and at that point shut the valve 34 feeding fuel from the first reservoir 14 into the outlet line 26, and open valve 36 feeding purge fluid from the second reservoir 16 into the outlet line 26.
  • the engine is then started and once at operating temperature, typically after about 10 minutes operation, purge fluid from the second reservoir 16 is gradually introduced to the outlet line 26 through operation of the valve 36 in feed line 22.
  • the ratio of purge fluid to fuel is gradually increased to a ratio of about 1 :1.
  • the operator listen to the tone of the engine so that the highest ratio of purge fluid to fuel may be utilised as possible as this will maximise the cleaning effect but ensure that the engine does not stop.
  • Prior art fuel system purge methods and apparatus typically utilise a single reservoir into which a predetermined mixture of purged fluid and fuel is introduced. Such an arrangement does not allow the monitoring of the fuel system purge and the maximising of the ratio of purge fluid to fuel so as to allow the potentiation or maximising of the cleaning operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Procédé et dispositif (10) pour la purge du système d'alimentation de carburant (44, 46) de moteur diesel. Le démarrage du moteur se fait essentiellement au carburant diesel, puis le fluide de purge est introduit dans la conduite d'alimentation (40) par le biais d'un système de stockage (16) et le moteur peut alors entrer en fonctionnement. On augmente le rapport fluide de purge/carburant tandis que le moteur fonctionne, pour optimiser l'effet de nettoyage du fluide de purge.
PCT/AU2006/000537 2005-05-02 2006-04-21 Procede et dispositif pour la purge de systeme d'alimentation de carburant WO2006116795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2005902193 2005-05-02
AU2005902193A AU2005902193A0 (en) 2005-05-02 Fuel System Purge Method and Apparatus

Publications (1)

Publication Number Publication Date
WO2006116795A1 true WO2006116795A1 (fr) 2006-11-09

Family

ID=37307512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2006/000537 WO2006116795A1 (fr) 2005-05-02 2006-04-21 Procede et dispositif pour la purge de systeme d'alimentation de carburant

Country Status (1)

Country Link
WO (1) WO2006116795A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790705A (zh) * 2014-03-05 2014-05-14 刘新羽 一种定期向汽车油箱中的汽油加入添加剂的装置及方法
FR3008143A1 (fr) * 2013-07-03 2015-01-09 Renault Sa Procede et installation d'amorcage d'un circuit de carburant sur un vehicule automobile.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671230A (en) * 1983-09-19 1987-06-09 Turnipseed Marion R Method and means for cleaning fuel injection engines
WO1991014518A1 (fr) * 1990-03-23 1991-10-03 Parker Automotive Corporation Appareil de decalaminage des moteurs diesel
US5257604A (en) * 1991-05-06 1993-11-02 Wynn Oil Company Multi-mode engine cleaning fluid application apparatus and method
US5271361A (en) * 1992-03-16 1993-12-21 Flynn Robert E Engine conditioning apparatus and method
US5287834A (en) * 1991-03-08 1994-02-22 Flynn Robert E Method and apparatus for cleaning deposits and residue from internal combustion engines
US5503683A (en) * 1994-06-27 1996-04-02 Ad/Vantage Inc. Fuel system cleaning apparatus
JP2002317648A (ja) * 2001-04-20 2002-10-31 Central Automotive Products Ltd 燃料噴射式エンジンの洗浄方法及び洗浄装置
US6715502B1 (en) * 2001-05-25 2004-04-06 Motorvac Technologies, Inc. Automatic fuel system cleaner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671230A (en) * 1983-09-19 1987-06-09 Turnipseed Marion R Method and means for cleaning fuel injection engines
WO1991014518A1 (fr) * 1990-03-23 1991-10-03 Parker Automotive Corporation Appareil de decalaminage des moteurs diesel
US5287834A (en) * 1991-03-08 1994-02-22 Flynn Robert E Method and apparatus for cleaning deposits and residue from internal combustion engines
US5257604A (en) * 1991-05-06 1993-11-02 Wynn Oil Company Multi-mode engine cleaning fluid application apparatus and method
US5271361A (en) * 1992-03-16 1993-12-21 Flynn Robert E Engine conditioning apparatus and method
US5503683A (en) * 1994-06-27 1996-04-02 Ad/Vantage Inc. Fuel system cleaning apparatus
JP2002317648A (ja) * 2001-04-20 2002-10-31 Central Automotive Products Ltd 燃料噴射式エンジンの洗浄方法及び洗浄装置
US6715502B1 (en) * 2001-05-25 2004-04-06 Motorvac Technologies, Inc. Automatic fuel system cleaner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3008143A1 (fr) * 2013-07-03 2015-01-09 Renault Sa Procede et installation d'amorcage d'un circuit de carburant sur un vehicule automobile.
CN103790705A (zh) * 2014-03-05 2014-05-14 刘新羽 一种定期向汽车油箱中的汽油加入添加剂的装置及方法
CN103790705B (zh) * 2014-03-05 2016-03-02 刘新羽 一种定期向汽车油箱中的汽油加入添加剂的装置及方法

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