EP1312789A2 - Injecteur de carburant à double source - Google Patents

Injecteur de carburant à double source Download PDF

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Publication number
EP1312789A2
EP1312789A2 EP02025290A EP02025290A EP1312789A2 EP 1312789 A2 EP1312789 A2 EP 1312789A2 EP 02025290 A EP02025290 A EP 02025290A EP 02025290 A EP02025290 A EP 02025290A EP 1312789 A2 EP1312789 A2 EP 1312789A2
Authority
EP
European Patent Office
Prior art keywords
liquid
feed channel
nozzle outlet
bores
injector according
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.)
Granted
Application number
EP02025290A
Other languages
German (de)
English (en)
Other versions
EP1312789B1 (fr
EP1312789A3 (fr
Inventor
Ferdinand Reiter
Markus Gesk
Ulrich Fischer
Hartmut Albrodt
Ralf Bruenemann
Simon Godwin
Eberhard Holder
Roland Kemmler
Martin Matt
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1312789A2 publication Critical patent/EP1312789A2/fr
Publication of EP1312789A3 publication Critical patent/EP1312789A3/fr
Application granted granted Critical
Publication of EP1312789B1 publication Critical patent/EP1312789B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the fuel flow
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/008—Arrangement of fuel passages inside of injectors

Definitions

  • the invention relates to a two-component injector, in particular for internal combustion engines, with a nozzle body, which has a nozzle outlet, according to the one in the preamble Art defined by claim 1.
  • Such two-substance injectors are, for example used in internal combustion engines in the starting phase inject another fuel into the combustion chambers than in normal operation.
  • a low-boiling Injected fuel which makes it possible to significantly stricter exhaust gas limit values than usual Adhere to the injection process.
  • the principle advantage the dual-fuel injectors used are the very minor changes that come with the internal combustion engine itself must be made as well as the fact that the wiring and the Control of the internal combustion engine completely taken over can be.
  • DE 39 09 750 C2 describes a similar procedure in the form of a starting aid for an internal combustion engine.
  • a generic two-substance injector is from DE 199 59 851 A1 known. Here is in a chamber of Nozzle body arranged a slide, which is dependent from its position either the first feed channel or the second feed channel to the nozzle outlet couples.
  • a disadvantage of this injector is the fact that the starting fuel and that for normal operation Mix the fuel used very easily can and in particular that after turning off the internal combustion engine and thus before the next one Start the same normal fuel in the area of the nozzle outlet, which is inevitable leads to this normal fuel during the first Injection process injected into the combustion chamber becomes.
  • the second Feed channel with the liquid space or the first Connect the feed channel and are arranged so that the second liquid in the liquid space or the generates a swirl flow in the first feed channel for example when using the invention
  • Two-fuel injector in an internal combustion engine the starting fuel due to the swirl flow which may still be in the liquid room or the normal normal feed channel
  • the two-substance injector according to the invention also used in other applications come, such as in air conditioning systems, humidifiers or reformers of fuel cells.
  • Fig. 1 shows a section through a two-component injector 1, for example for injecting Fuel into a combustion chamber, not shown internal combustion engine, also not shown can serve.
  • the use of the Two-substance injector 1 described in an internal combustion engine it is also possible to add the same Air conditioning systems, humidifiers, reformers from To use fuel cells or the like.
  • the two-substance injector 1 has a nozzle body 2 on the front end with a nozzle outlet 3 is provided. In the operation of the dual-fuel injector 1 becomes fuel through the nozzle outlet 3 in the respective combustion chamber of the internal combustion engine injected.
  • a valve needle is in the nozzle body 2 4 movably mounted, which is intended to open the nozzle outlet 3 in a manner known per se or close to perform an injection.
  • a liquid space 6 is formed in which the Liquid before it emerges from the two-substance injector 1 collects through the nozzle outlet 3.
  • a first feed channel runs inside the nozzle body 2 7, several towards the liquid chamber 6 Has slots 8 and a plurality of openings 9. Through the Slots 8 and the openings 9 can be a first liquid, in the present case that for normal operation fuel provided to the internal combustion engine, enter the liquid space 6.
  • the valve needle 4 has an interior 4a which is part of the first Feed channel 7 forms and by the in operation first liquid is passed.
  • the two-substance injector 1 also has one second feed channel 10 on the nozzle body 2 is attached and for the supply of a second liquid serves for the nozzle outlet 3.
  • a second liquid serves for the nozzle outlet 3.
  • the first feed channel 7 and the second feed channel 10 be arranged in any way to one another To reach the flow to the nozzle outlet 3.
  • the second liquid is one Starting fuel used in the starting phase, the has a relatively low boiling point.
  • the respective Liquid comes out of not shown Containers into the two feed channels 7 and 10.
  • the swirl flow thus generated displaces the first Liquid that is present at the time of initiation of the second liquid are still in the liquid space 6 can, against the direction of injection upwards away, and without mixing with it.
  • the second liquid over the second Feed channel 10 introduced into the liquid space 6 is prevented that the first liquid the Leave the two-substance injector 1 through the nozzle outlet 3 can. Rather it ensures that already with this first opening only the second one Liquid leaves the nozzle outlet 3 and on this Only the one specifically intended for this purpose Starting fuel in the combustion chamber of the internal combustion engine is injected.
  • a partially ring-shaped trained room 12 located on the second feed channel 10 connects and from which the holes 11 going out.
  • a switchable valve 13 for example a 2/2-way valve arranged.
  • the valve 13 ensures the further ensure that the starting fuel is not in the Supply line 7a can reach, the above described Flushing the liquid space 6 through a corresponding switching position of the valve 13 allows becomes.
  • a check valve is located in the second feed channel 10 14, the flow of the second liquid in the direction of the nozzle outlet 3 and the entry of the first liquid into the second Feed channel 10 prevented.
  • the check valve 14 has a spring element 16, whose spring constant corresponds to the boiling behavior of the second Fluid is adjusted, thereby preventing that in the warm condition of the internal combustion engine and at corresponding vapor pressure of the second liquid the same penetrate into the liquid space 6 in an uncontrolled manner can.
  • the internal combustion engine After the internal combustion engine has been switched off, it remains the first liquid in the area of the nozzle outlet 3, being by the fact that the first liquid at the same temperature compared to the second Liquid has a significantly lower vapor pressure, the leakage in the area of the nozzle outlet 3 is significantly less than if the second liquid were there would queue. As described above a new start of the internal combustion engine first liquid through the second liquid from that Nozzle outlet displaced.
  • the liquid space 6 provided that for a better Uniform distribution of the fuel before injection provides. If necessary, however, could also on the Liquid space 6 can be dispensed with. In this case would the second feed channel 10 directly into the first Feed channel 7 open and the holes 11 would be immediate arranged between the two feed channels 7 and 10 and would connect them together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP02025290A 2001-11-17 2002-11-13 Injecteur de carburant à double source Expired - Lifetime EP1312789B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10156657A DE10156657C2 (de) 2001-11-17 2001-11-17 Zweistoff-Injektor
DE10156657 2001-11-17

Publications (3)

Publication Number Publication Date
EP1312789A2 true EP1312789A2 (fr) 2003-05-21
EP1312789A3 EP1312789A3 (fr) 2004-12-15
EP1312789B1 EP1312789B1 (fr) 2009-06-24

Family

ID=7706184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025290A Expired - Lifetime EP1312789B1 (fr) 2001-11-17 2002-11-13 Injecteur de carburant à double source

Country Status (4)

Country Link
US (1) US6976642B2 (fr)
EP (1) EP1312789B1 (fr)
JP (1) JP4308503B2 (fr)
DE (2) DE10156657C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7695275B2 (en) 2004-06-02 2010-04-13 Fuel Management, Inc. Air:fluid distribution system and method
US7827929B2 (en) * 2007-02-23 2010-11-09 Frito-Lay North America, Inc. Pneumatic seasoning system
CN103061938B (zh) * 2013-01-18 2015-09-30 浙江吉利汽车研究院有限公司杭州分公司 一种新型双燃料油轨喷油器总成
CN103133205B (zh) * 2013-03-14 2014-11-26 天津大学 双通道压电喷油器
KR101695092B1 (ko) * 2015-06-04 2017-01-10 주식회사 현대케피코 니들 흔들림 방지구조를 가지는 인젝터
US10274201B2 (en) 2016-01-05 2019-04-30 Solar Turbines Incorporated Fuel injector with dual main fuel injection
CN105756832B (zh) * 2016-04-21 2018-01-19 哈尔滨工程大学 组合式机械喷油‑电磁喷气混合燃料喷射装置
DE102017131242B4 (de) 2017-12-22 2023-10-05 Rolls-Royce Solutions GmbH Doppelinjektor, Verfahren zum Betrieb eines Doppelinjektors, Einrichtung zum Steuern und/oder Regeln eines Doppelinjektors und Brennkraftmaschine
US10948188B2 (en) 2018-12-12 2021-03-16 Solar Turbines Incorporated Fuel injector with perforated plate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909750C2 (fr) 1989-03-23 1991-11-28 Elsbett, Ludwig, Ing.(Grad.)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE849325C (de) * 1940-09-19 1952-09-15 Bosch Gmbh Robert Einspritzventil fuer Brennkraftmaschinen
DE1863046U (de) * 1960-03-18 1962-11-29 Kugelfischer G Schaefer & Co Einspritzduese.
DE1934704C3 (de) * 1969-07-09 1978-09-14 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung für eine Kraftstoffeinspritzdüse für fremdgezündete Brennkraftmaschinen
DE3243176A1 (de) * 1982-11-23 1984-05-24 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln Einspritzeinrichtung fuer alkoholkraftstoffe, insbesondere bei direkteinspritzenden dieselmotoren
US4676216A (en) * 1984-10-05 1987-06-30 Kabushiki Kaisha Toyota Chuo Kenkyusho Injection nozzle
US4782794A (en) * 1986-08-18 1988-11-08 General Electric Company Fuel injector system
US4736712A (en) * 1986-12-01 1988-04-12 General Electric Company Self purging dual fuel injector
US5035358A (en) * 1989-03-22 1991-07-30 Toyota Jidosha Kabushiki Kaisha Fuel injector for use in an engine
US5299919A (en) * 1991-11-01 1994-04-05 Paul Marius A Fuel injector system
DE4203144A1 (de) * 1992-02-05 1993-08-12 Bosch Gmbh Robert Kraftstoffeinspritzduese fuer diesel-brennkraftmaschinen zum einspritzen von zuendunwilligem hauptkraftstoff und zuendkraftstoff
PL172842B1 (pl) * 1992-05-15 1997-12-31 Orbital Eng Australia Urzadzenie do dostarczania paliwa do silnika PL PL
DE4230641A1 (de) * 1992-09-12 1994-03-17 Bosch Gmbh Robert Kraftstoff-Einspritzdüse mit Additiveinspritzung für Dieselmotoren
DE4337048C2 (de) * 1993-10-29 1996-01-11 Daimler Benz Ag Kraftstoffeinspritzanlage für eine Brennkraftmaschine
DE4422552C1 (de) * 1994-06-28 1995-11-30 Daimler Benz Ag Verfahren zum Einspritzen von Kraftstoff in den Brennraum einer Brennkraftmaschine
DE19650559C1 (de) * 1996-12-05 1998-03-26 Mtu Friedrichshafen Gmbh Anschlußelement zum Einleiten von Brennstoff und einem zweiten Fluid in ein Einspritzventil
US6209806B1 (en) * 1999-01-11 2001-04-03 Siemens Automotive Corporation Pulsed air assist fuel injector
CA2279149C (fr) * 1999-07-30 2003-04-22 James Mancuso Adaptateur d'injecteur de carburant pour convertir des moteurs monocarburant en moteurs hybrides

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909750C2 (fr) 1989-03-23 1991-11-28 Elsbett, Ludwig, Ing.(Grad.)

Also Published As

Publication number Publication date
US20030213858A1 (en) 2003-11-20
DE10156657C2 (de) 2003-12-04
JP2003166450A (ja) 2003-06-13
EP1312789B1 (fr) 2009-06-24
DE10156657A1 (de) 2003-08-21
JP4308503B2 (ja) 2009-08-05
EP1312789A3 (fr) 2004-12-15
DE50213630D1 (de) 2009-08-06
US6976642B2 (en) 2005-12-20

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