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WO2002036953A1 - Commande de l'alimentation en carburant diesel et en gaz de petrole liquefie d'un moteur a combustion interne a deux carburants - Google Patents

Commande de l'alimentation en carburant diesel et en gaz de petrole liquefie d'un moteur a combustion interne a deux carburants Download PDF

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Publication number
WO2002036953A1
WO2002036953A1 PCT/TR2001/000026 TR0100026W WO0236953A1 WO 2002036953 A1 WO2002036953 A1 WO 2002036953A1 TR 0100026 W TR0100026 W TR 0100026W WO 0236953 A1 WO0236953 A1 WO 0236953A1
Authority
WO
WIPO (PCT)
Prior art keywords
lpg
pressure
diesel
gas
diesel fuel
Prior art date
Application number
PCT/TR2001/000026
Other languages
English (en)
Inventor
Mevlüt AYVACI
Original Assignee
Ayvaci Otomotiv Yedek Parca Tasimacilik San. Ve Tic. Ltd. Sti.
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
Application filed by Ayvaci Otomotiv Yedek Parca Tasimacilik San. Ve Tic. Ltd. Sti. filed Critical Ayvaci Otomotiv Yedek Parca Tasimacilik San. Ve Tic. Ltd. Sti.
Priority to AU2001277836A priority Critical patent/AU2001277836A1/en
Publication of WO2002036953A1 publication Critical patent/WO2002036953A1/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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0239—Pressure or flow regulators therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0626—Measuring or estimating parameters related to the fuel supply system
    • F02D19/0628—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0684—High pressure fuel injection systems; Details on pumps, rails or the arrangement of valves in the fuel supply and return systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0287—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers characterised by the transition from liquid to gaseous phase ; Injection in liquid phase; Cooling and low temperature storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Definitions

  • This invention is related to an economic embodiment that functions with LPG or natural gas in internal-combustion engines called as semi-diesel, full-diesel, turbo, and intercool.
  • This invention is particularly related to an embodiment that provides the transmit of LPG to combustion chambers by the suction manifold at the moment the accelerator is stepped on and that cuts off the LPG and utilizes only diesel when the accelerator is not stepped on and when the vehicle is run down or up on ramps, called as compression, and is stopped by lowering the gear.
  • LPG utilization in internal combustion engines is valid for petrol vehicles only. As for these engines, LPG is consumed as an alternative fuel rather than for economic reasons so that during the starting process gasoline is used and optionally changed to LPG afterwards. Since there is not an ignition mechanism in diesel engines, direct LPG utilization is not possible.lt is known from EP0347192 that an apparatus improved for providing economic fuel consumption for diesel engines.
  • an adjustment nozzle embodied on the air intake mechanism of the engine and connected to a LPG container by means of a solenoid valve. Furthermore a pressure controller regulated in a thermostat mechanism for activating the solenoid valve when the temperature of the engine is raised to a certain degree. In addition to these features, a stop switch for activating the solenoid valve when a predefined value of the vehicle speed is reached.
  • EP0347192 possesses the above-mentioned advantages, it is obvious that the embodiments set forth in the said document fail for the engines working based upon introduction of forced air in the engines for providing combustion. This is indeed the case, since the mechanism does not propose any embodiment to provide an equilibrium between the air pressure and gas pressure for the combustion.
  • the present invention aims to save on fuel by accomplishing LPG combustion in certain conditions (to be explained in the detailed description of invention) for diesel engines.
  • the object of this invention is to allow a vehicle with a diesel engine to consume LPG "especially and merely” depending on the speed during motion, and in other cases, to prevent the consumption of LPG (to prevent LPG from being taken to a cylinder for combustion) as an economical fuel.
  • the present invention is ensured by directing LPG from a tank to the suction manifold at a constant pressure after it is gasified in a regulator.
  • the embodiment provides that the LPG can be given via cylinder one by one in the suction manifold, or optionally LPG can be introduced into the cylinders via a single cavity.
  • This directing process is also realized so that when the accelerator is stepped on, LPG is taken and combusted, and LPG combustion is stopped when no force is exerted on the accelerator. Also when the gear is lowered and when the vehicle is run down or up on ramps, LPG consumption is stopped by the compression the engine performs and diesel fuel is consumed only.
  • the present invention is applicable for all kind of diesel engines (semi-, full-, turbo, intercool).
  • the air that is required for combustion in turbo and intercool engine types is forced-transmitted by a pump to combustion chambers.
  • the pressure of LPG to be used in the embodiment of this invention is kept equivalent with the pressure of the air transmitted to combustion chambers.
  • Figure 1 shows a flow diagram of the economic system with LPG
  • Figure 2 shows how the air to be required for combustion is sucked from the normal setting and applied to diesel engines (semi-, full-diesel engines);
  • Figure 3 shows how the air to be required for combustion is applied to diesel engines (turbo, intercool) where it is forced-directed by a pump.
  • the embodiment according to this invention may be used in diesel engines where the air required for combustion is taken from the outer setting naturally (semi-, full-diesel engines) and also where the air required for combustion is forced transmission by a pump to combustion chambers (turbo, intercool engines).
  • the LPG pressure to be utilized according to an embodiment of the present invention is ensured to be equivalent with the pressure of the air transmitted to combustion chambers.
  • Natural gas can also be utilized as an alternative to LPG.
  • Figure 1 shows a flow diagram of the economic system with LPG.
  • the fuel (1) in the liquid phase is directed by the transmittance means (2) and is converted to the gas phase (3). If it is at a constant pressure, the fuel that is converted to the gas phase (3) is delivered (6) to the suction manifold (12) and there is neither a pressure on the accelerator (4), nor a pressure (5) at the diesel pump (16).
  • the fuel in the gas phase (3) is combusted after it is transmitted to the suction manifold (12) and introduced into each cylinder (7). It can be realized from any part of the manifold channel in one entrance. In order to deliver the fuel to the system within economic reasons, there should neither be a pressure at the diesel fuel pump (16) nor on the accelerator. If these two conditions (4, 5) are not fulfilled, fuel is not delivered to the system (8).
  • Figure 2 shows how the air to be required for combustion is sucked from the normal setting and applied to diesel engines (semi-, full-diesel engines).
  • LPG is present in the tank (9) in its liquid phase (1) and is passed to the regulator (10) by the transmittance means (2).
  • the said regulator (10) allows the LPG gas in the liquid phase (1) to convert to the to the gas phase (3) by circulating the hot water, as used in known status of technical field, it contains. LPG that is converted to the gas phase (3) becomes ready for use.
  • the gas (3) is directed from the regulator (10) by the primary solenoid valve (11). The gas (3) passes when the solenoid valve (11) is open and stops when the solenoid valve is closed.
  • Gas phased LPG (3) that comes with a constant pressure from the regulator (10) is directed to the suction manifold (12) again by the transmittance means (13). This directing process is again controlled by a secondary solenoid valve (14).
  • This solenoid valve (12) receives the control signals (opening/closing) from the gas arm (15) that activates as a result of the pressure on the accelerator (4) as well as the switches (17, 18) that are warned with the pressure in the diesel fuel tank (16).
  • the primary and secondary solenoid valves (11 , 14) prevent the fuel to pass through the transmittance means (2, 13) and in this case, the engine consumes only diesel fuel.
  • One electricity opening/closing switch (19) assembled within the vehicle allows the operation of the solenoid valves (11 , 14) in the system.
  • the electricity charged into the system completes the circuit if the gas arm switch (17) and the diesel fuel pump switch (18) are closed and thus opens the primary and secondary solenoid valves (11 , 14) and allows the gas phased LPG (3) to be delivered to the suction manifold.
  • the LPG (3) that passes through primary and secondary solenoids is divided by a collector (20) in as many paths as the number of cylinders the engine contains.
  • the gas flow can also be adjusted by means of the collector (20).
  • a figure representative of a diesel engine with 4 cylinders is sketched in Figure 2.
  • Figure 3 shows how the air to be required for combustion is applied to diesel engines (turbo, intercool diesel engines) where it is forced-directed by a pump.
  • the pressure of the air (24) that is forced-directed by an air pump (22) is kept equivalent with the pressure of gas phased LPG (3) to be utilized for combustion.
  • a small-piston (23) that exerts pressure on the regulator's (10) diaphragm for this pressurizing process is utilized.
  • An equivalent pressure for both of the gas phased LPG (3) to be combusted and the forced-directed air (24) required for combustion is provided by this said pressure balancing line (21).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

L'invention concerne un moteur à deux carburants à aspiration naturelle ou suralimenté, qui fonctionne respectivement avec du carburant diesel et du gaz de pétrole liquéfié (GPL). L'alimentation en carburant GPL est commandée par un capteur/commutateur de position de la pédale d'accélérateur et un commutateur activé par la pression de carburant diesel. L'alimentation de GPL peut être arrêtée durant le ralenti et durant des opérations transitoires du moteur par fermeture de deux valves à solénoïde dans le système d'alimentation de carburant gazeux de manière à diminuer la consommation totale de carburant.
PCT/TR2001/000026 2000-11-03 2001-06-29 Commande de l'alimentation en carburant diesel et en gaz de petrole liquefie d'un moteur a combustion interne a deux carburants WO2002036953A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001277836A AU2001277836A1 (en) 2000-11-03 2001-06-29 Control of the supply of diesel and liquefied petroleum gas to a dual fuel internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR00/03215 2000-11-03
TR200003215 2000-11-03

Publications (1)

Publication Number Publication Date
WO2002036953A1 true WO2002036953A1 (fr) 2002-05-10

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ID=21622772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2001/000026 WO2002036953A1 (fr) 2000-11-03 2001-06-29 Commande de l'alimentation en carburant diesel et en gaz de petrole liquefie d'un moteur a combustion interne a deux carburants

Country Status (2)

Country Link
AU (1) AU2001277836A1 (fr)
WO (1) WO2002036953A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388403A (en) * 2002-04-08 2003-11-12 Autogas Diesel Ltd Electronically controlled dual fuel diesel/LPG fuel system for an i.c. engine
DE102007017561A1 (de) 2007-04-12 2008-10-16 Cornelis Hendrik Heim Verfahren und Vorrichtung zur gemeinsamen Verbrennung von Dieselkraftstoff und brennbarem Gas
DE102007022230A1 (de) 2007-05-09 2008-11-13 Ecomotec Gmbh Vorrichtung zum Steuern eines Selbstzünder-Verbrennungsmotors im Zweistoffbetrieb sowie Verfahren zum Betreiben desselben

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122681A (en) * 1982-06-28 1984-01-18 Maxwell Charles Washbourne Operating compression ignition engines on both gaseous and liquid fuels
US4499885A (en) * 1982-11-02 1985-02-19 Weissenbach Joseph Supplemental system for fuel agency
GB2166267A (en) * 1984-10-10 1986-04-30 Gaspower Int Fuel control system on duel fuel compression ingnition engine
US4614168A (en) * 1984-02-02 1986-09-30 Propane Carburetion Systems, Inc. Control valve for dual fuel operation of an internal combustion engine
EP0347192A1 (fr) 1988-06-17 1989-12-20 Nihon Kankyo Denso Co. Ltd. Dispositif d'injection de gaz de pétrole liquéfié dans un moteur diesel
US5370097A (en) * 1993-03-22 1994-12-06 Davis Family Trust Combined diesel and natural gas engine fuel control system and method of using such
US5553575A (en) * 1995-06-16 1996-09-10 Servojet Products International Lambda control by skip fire of unthrottled gas fueled engines
US6003478A (en) * 1999-07-14 1999-12-21 Itg Innovative Technology Group Corporation Dual-fuel control/monitoring system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122681A (en) * 1982-06-28 1984-01-18 Maxwell Charles Washbourne Operating compression ignition engines on both gaseous and liquid fuels
US4499885A (en) * 1982-11-02 1985-02-19 Weissenbach Joseph Supplemental system for fuel agency
US4614168A (en) * 1984-02-02 1986-09-30 Propane Carburetion Systems, Inc. Control valve for dual fuel operation of an internal combustion engine
GB2166267A (en) * 1984-10-10 1986-04-30 Gaspower Int Fuel control system on duel fuel compression ingnition engine
EP0347192A1 (fr) 1988-06-17 1989-12-20 Nihon Kankyo Denso Co. Ltd. Dispositif d'injection de gaz de pétrole liquéfié dans un moteur diesel
US5370097A (en) * 1993-03-22 1994-12-06 Davis Family Trust Combined diesel and natural gas engine fuel control system and method of using such
US5553575A (en) * 1995-06-16 1996-09-10 Servojet Products International Lambda control by skip fire of unthrottled gas fueled engines
US6003478A (en) * 1999-07-14 1999-12-21 Itg Innovative Technology Group Corporation Dual-fuel control/monitoring system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388403A (en) * 2002-04-08 2003-11-12 Autogas Diesel Ltd Electronically controlled dual fuel diesel/LPG fuel system for an i.c. engine
DE102007017561A1 (de) 2007-04-12 2008-10-16 Cornelis Hendrik Heim Verfahren und Vorrichtung zur gemeinsamen Verbrennung von Dieselkraftstoff und brennbarem Gas
DE102007022230A1 (de) 2007-05-09 2008-11-13 Ecomotec Gmbh Vorrichtung zum Steuern eines Selbstzünder-Verbrennungsmotors im Zweistoffbetrieb sowie Verfahren zum Betreiben desselben

Also Published As

Publication number Publication date
AU2001277836A1 (en) 2002-05-15

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