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WO2012157001A1 - Injecteur de carburant double pourvu d'une buse d'étanchéité double et de deux raccords d'entrée destinés à deux lignes d'alimentation distinctes - Google Patents

Injecteur de carburant double pourvu d'une buse d'étanchéité double et de deux raccords d'entrée destinés à deux lignes d'alimentation distinctes Download PDF

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Publication number
WO2012157001A1
WO2012157001A1 PCT/IT2011/000148 IT2011000148W WO2012157001A1 WO 2012157001 A1 WO2012157001 A1 WO 2012157001A1 IT 2011000148 W IT2011000148 W IT 2011000148W WO 2012157001 A1 WO2012157001 A1 WO 2012157001A1
Authority
WO
WIPO (PCT)
Prior art keywords
feeding
fuel
injector
sprayer
injection
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IT2011/000148
Other languages
English (en)
Inventor
Sisto Luigi De Matthaeis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAD 3 Srl
Original Assignee
KAD 3 Srl
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 KAD 3 Srl filed Critical KAD 3 Srl
Priority to PCT/IT2011/000148 priority Critical patent/WO2012157001A1/fr
Publication of WO2012157001A1 publication Critical patent/WO2012157001A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F02D19/0673—Valves; Pressure or flow regulators; Mixers
    • F02D19/0676—Multi-way valves; Switch-over valves
    • 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
    • F02D19/0686—Injectors
    • F02D19/0694—Injectors operating with a plurality of fuels
    • 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
    • F02D19/105—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 operating in a special mode, e.g. in a liquid fuel only mode for starting
    • 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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/04—Injectors peculiar thereto
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1866—Valve seats or member ends having multiple cones
    • 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
    • F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
    • F02D19/0652—Biofuels, e.g. plant oils
    • 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

  • Bi-fuel Injector with a double sealing Nozzle and two inlet Fittings for two separate feeding Lines .
  • the present invention relates to a particular kind of injector characterized by a sprayer with cylindrical conical double seal and two inlet connectors for two separated feeding lines able to allow the alternative injection of gas oil or gas, regarding two separated systems but converging in only one injection system.
  • alternative fuels generally the gaseous ones as for example methane or LPG or alternative fuels as biogas, syngas, and discharge gas, which are advantageous both from an economic point of view and from the one concerning the environmental sustainability .
  • the need to implement powering systems where a gas feeding and a traditional feeding system are to be put together, such that the advantageous profiles deriving from them both are combined, thus eliminating the respective problems in the same way, has first lead to the introduction of bifuel systems where, considering the affinity of the injection system, an alternative petrol and gas powering system was used.
  • HCCI homogeneous charge
  • the advantage of the present invention lies just in the configuration of the possibility to allow two different systems to converge in a sole injector.
  • the most fuel feeding systems are provided with direct injection wherein the fuel, arrived between nozzle and pin, under the effect of the pressure forces exerted on the pin causing its opening, goes out from the injection holes according to different modes depending on the kind of the fuel used (which in fact can be in the liquid or gaseous state) directly in the combustion chamber.
  • the different passages concerning the injection procedure are, in most cases, subject to an electronic control as well.
  • the present invention is made up of two different feeding systems, on the one hand the gas oil rail, on the other one the gas cylinder, intended to converge in only one injection system.
  • the nozzle is provided with two series of outflow holes, different in that they are gas oil or gas outflow holes; the switch for the feeding switching to the sprayer from the rail or cylinder occurs by means of an outer valve of the "two way - two positions" type, electronically controlled, which is arranged upstream of the feeding line of the sprayer.
  • Such system is possible by using a peculiar kind of cylindrical conical double seal sprayer, able to allow the alternative injection of gas oil as well as gas.
  • the injector is made up of two inlet connectors for two separated feeding lines, the one needed for feeding the sprayer and the other one for feeding control volume (pilot valve and actuator) .
  • FIG. 1 shows a schematic representation of a side section of the sprayer
  • Figure 2 represents an example map of the functioning scheme of the invention.
  • the fuel injector object of the present invention comprises an approximately cylindrically shaped body; a sprayer comprising a nozzle and a pin; fuel feeding and discharging elements; an electromagnet piloted by the control unit for controlling an actuator assembly; an actuator assembly comprising a valve and a pressure bar able to unbalance the pressure forces acting on the pin of the sprayer.
  • the peculiarity of the injection device 1 object of the present invention is first the usage of a cylindrical conical double seal sprayer 5 able to allow the injection of gas oil and gas by means of a sole injection system.
  • the switch between the two feeding systems is carried out by means of a outer valve 7 of the "two way - two positions" kind with electronic control 12, arranged upstream of the feeding line of the sprayer 5, which determines the feeding switching to the sprayer 5 alternatively from the rail of the gas oil 9 or gas cylinder 8 (figure 2) .
  • a pump 13 of HPP type determines the passage of the gas oil from a tank 14 to the rail 9 and from this one to the injector 1.
  • an electronic control system determines the shifting of ' the switching valve 7 thus making possible the feeding to the sprayer 5 from the gas cylinder 8.
  • the injector and the respective injection system can use any type of liquid or gaseous fuel.
  • the liquid fuel can be gas oil, biodiesel, fuel oil, refined and unrefined vegetal oil, bioethanol whil the gaseous ⁇ fuel can be LPG, methane, biogas syngas, discharge gas.

Landscapes

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

Abstract

L'invention concerne un injecteur de carburant double (1) se caractérisant en ce qu'il comprend un pulvérisateur de joint cylindrique conique double (5) permettant l'injection alternée de gazole et de gaz au moyen d'un seul système d'injection, la commutation d'alimentation vers le pulvérisateur alternativement à partir du rail (9) ou du cylindre (8) et inversement se produisant au moyen d'un clapet externe (7) de type "à deux directions - deux positions" avec une commande électronique (12) disposée en amont de la ligne d'alimentation du volume d'accumulation (10) et donc du pulvérisateur (5), et en ce qu'il comprend deux raccords d'entrée (15) pour deux lignes d'alimentation distinctes, une ligne alimentant le volume de commande (11), l'autre alimentant le volume d'accumulation (10) et le pulvérisateur (5).
PCT/IT2011/000148 2011-05-13 2011-05-13 Injecteur de carburant double pourvu d'une buse d'étanchéité double et de deux raccords d'entrée destinés à deux lignes d'alimentation distinctes Ceased WO2012157001A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000148 WO2012157001A1 (fr) 2011-05-13 2011-05-13 Injecteur de carburant double pourvu d'une buse d'étanchéité double et de deux raccords d'entrée destinés à deux lignes d'alimentation distinctes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000148 WO2012157001A1 (fr) 2011-05-13 2011-05-13 Injecteur de carburant double pourvu d'une buse d'étanchéité double et de deux raccords d'entrée destinés à deux lignes d'alimentation distinctes

Publications (1)

Publication Number Publication Date
WO2012157001A1 true WO2012157001A1 (fr) 2012-11-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2011/000148 Ceased WO2012157001A1 (fr) 2011-05-13 2011-05-13 Injecteur de carburant double pourvu d'une buse d'étanchéité double et de deux raccords d'entrée destinés à deux lignes d'alimentation distinctes

Country Status (1)

Country Link
WO (1) WO2012157001A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015005700A1 (de) 2014-05-05 2015-11-05 Electro-Motive Diesel, Inc. Dichtungskörper zum Isolieren von Schwingungen von einem Zylinderkörper auf eine Düse
CN107701346A (zh) * 2017-07-21 2018-02-16 浙江吉利控股集团有限公司 一种燃料切换阀系统
CN109715918A (zh) * 2016-09-21 2019-05-03 德尔福知识产权有限公司 双燃料喷射器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996558A (en) * 1997-05-09 1999-12-07 Westport Research Inc. Hydraulically actuated gaseous or dual fuel injector
DE10245161A1 (de) * 2002-09-26 2004-04-08 Winkelmann, Karlheinrich, Dipl.-Ing. (TH) Kraftstoffeinspritzanlage für eine Brennkraftmaschine
US20070199539A1 (en) * 2006-01-31 2007-08-30 Tim Lennox Method And Apparatus For Delivering Two Fuels To A Direct Injection Internal Combustion Engine
WO2008000095A1 (fr) * 2006-06-29 2008-01-03 The University Of British Columbia Injection simultanée de combustibles liquide et gazeux dans un moteur
US20090150050A1 (en) * 2007-12-05 2009-06-11 Denso Corporation Fuel injector and fuel injection device having same
JP2009228609A (ja) * 2008-03-25 2009-10-08 Toyota Central R&D Labs Inc インジェクタ及び改質ガスエンジンシステム
WO2010139572A1 (fr) 2009-06-03 2010-12-09 Landi Renzo S.P.A. Procédé et dispositif pour fournir deux carburants à un moteur diesel
WO2011002351A1 (fr) 2009-07-03 2011-01-06 Volvo Technology Corporation Procédé permettant de sélectionner entre deux modes de fonctionnement dans un moteur à combustion interne à deux combustibles du type diesel et moteur à combustion interne à deux combustibles du type diesel fonctionnant selon celui-ci

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996558A (en) * 1997-05-09 1999-12-07 Westport Research Inc. Hydraulically actuated gaseous or dual fuel injector
DE10245161A1 (de) * 2002-09-26 2004-04-08 Winkelmann, Karlheinrich, Dipl.-Ing. (TH) Kraftstoffeinspritzanlage für eine Brennkraftmaschine
US20070199539A1 (en) * 2006-01-31 2007-08-30 Tim Lennox Method And Apparatus For Delivering Two Fuels To A Direct Injection Internal Combustion Engine
WO2008000095A1 (fr) * 2006-06-29 2008-01-03 The University Of British Columbia Injection simultanée de combustibles liquide et gazeux dans un moteur
US20090150050A1 (en) * 2007-12-05 2009-06-11 Denso Corporation Fuel injector and fuel injection device having same
JP2009228609A (ja) * 2008-03-25 2009-10-08 Toyota Central R&D Labs Inc インジェクタ及び改質ガスエンジンシステム
WO2010139572A1 (fr) 2009-06-03 2010-12-09 Landi Renzo S.P.A. Procédé et dispositif pour fournir deux carburants à un moteur diesel
WO2011002351A1 (fr) 2009-07-03 2011-01-06 Volvo Technology Corporation Procédé permettant de sélectionner entre deux modes de fonctionnement dans un moteur à combustion interne à deux combustibles du type diesel et moteur à combustion interne à deux combustibles du type diesel fonctionnant selon celui-ci

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015005700A1 (de) 2014-05-05 2015-11-05 Electro-Motive Diesel, Inc. Dichtungskörper zum Isolieren von Schwingungen von einem Zylinderkörper auf eine Düse
CN109715918A (zh) * 2016-09-21 2019-05-03 德尔福知识产权有限公司 双燃料喷射器
CN107701346A (zh) * 2017-07-21 2018-02-16 浙江吉利控股集团有限公司 一种燃料切换阀系统

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