WO2009065679A1 - Dispositif d'injection de carburant - Google Patents

Dispositif d'injection de carburant Download PDF

Info

Publication number
WO2009065679A1
WO2009065679A1 PCT/EP2008/063963 EP2008063963W WO2009065679A1 WO 2009065679 A1 WO2009065679 A1 WO 2009065679A1 EP 2008063963 W EP2008063963 W EP 2008063963W WO 2009065679 A1 WO2009065679 A1 WO 2009065679A1
Authority
WO
WIPO (PCT)
Prior art keywords
channels
fuel injection
fuel
injection device
channel
Prior art date
Application number
PCT/EP2008/063963
Other languages
German (de)
English (en)
Inventor
Andreas Posselt
Marko Lorenz
Herbert Kolly
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
Priority to RU2010125107/06A priority Critical patent/RU2493426C2/ru
Priority to BRPI0820536-1A priority patent/BRPI0820536A2/pt
Priority to CN200880117349.6A priority patent/CN101868615B/zh
Publication of WO2009065679A1 publication Critical patent/WO2009065679A1/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
    • 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
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
    • F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44

Definitions

  • the invention is based on a fuel injection device for an internal combustion engine having at least two intake valves according to the preamble of claim 1.
  • a known fuel injection device for an internal combustion engine with two each associated with one of two combustion cylinders intake valves (DE 38 08 396 Al) has a fuel injection valve with two spray holes, the hole axes one another with an acute
  • Fuel injection valve is inserted into a pipe wall of the suction pipe opposite the nozzle tube so that the spray hole axes are aligned approximately with the axes of the legs and so the fuel jets are sprayed in the direction of the legs in the air flowing through the suction air volume.
  • the fuel injection valve is inserted into the cylinder head of the cylinder.
  • the latter has an inlet duct connected to a suction pipe, which has two inlet openings through a partition wall extending into the combustion chamber of the combustion cylinder.
  • Each intake port is controlled by one of the intake valves.
  • the fuel injector is plugged into a cylinder head bore whose bore axis makes an acute angle with the channel axis of the intake passage and which opens into the intake passage.
  • the insertion of the fuel injection valve is made so that the injection port of the fuel injection valve is located at a distance in front of the partition wall extending in the inlet channel and the fuel jet with a large
  • Spray widening angle is symmetrically directed to the partition wall.
  • the Fuel injection valve When opening the Fuel injection valve, the fuel is injected into the mixing volume of the intake passage in front of the partition wall, from which a fuel air mixture is sucked off when opening the intake valves.
  • the fuel injection device with the features of claim 1 has the advantage that preceded by the leadership of the two ejected from the fuel injection fuel spray in separate injection channels directly into the separate flow channels into the fuel injection valves while avoiding a pneumatic coupling between the leading to the injection valves flow channels becomes. This ensures, on the one hand, an exact equal distribution of the fuel quantity to both intake valves and both of the intake valves controlled combustion cylinder and on the other hand eliminates the cause, which in the known fuel injectors with a single injection valve for two intake valves to an unequal distribution of air and fuel to the two
  • Combustion cylinder leads, namely an air crosstalk between the flow channels by swinging the air columns in the two flow channels.
  • Each fuel jet injects into a separate, hermetically separated from the other flow channel flow channel, so that flow and injection conditions are present, as they are to be found in the allocation of an injection valve to an intake valve.
  • the two injection channels are combined with their remote from the channel mouths ends in a Einsteckhunt for the fuel injection valve. Insertion chamber and injection channels are in one
  • Adapters are formed with an insertion opening for the fuel injection valve, and the adapter is inserted into the air flow path, that its mouths containing the end face located centrally on the narrow side of the two flow channels separating partition and the receiving chamber is accessible outside of the air flow path.
  • the adapter which is lowered at the installation site to the front edge of the exposed by the installation section portion of the partition wall between the two flow channels, after installation again a complete pneumatic separation of the two flow channels and minimizing the air leakage between the two flow channels ago.
  • the preferably cylindrical adapter is made of plastic or metal and can be used both in a correspondingly held hole in the intake manifold and in a cylinder head bore.
  • FIG. 1 shows a longitudinal section through one of two cylinders of an internal combustion engine with a common cylinder head and fuel injection valve for both cylinders and an adapter for installing the fuel injection valve
  • FIG. 3 is a plan view of the adapter in Fig. 2 with the fuel injection valve removed
  • FIG. 5 is a bottom view of the adapter in the direction of arrow V in Fig. 4,
  • FIG. 6 shows a detail of a longitudinal section of a suction module connected to the cylinder head of an internal combustion engine with a fuel injection valve for two cylinders of the internal combustion engine.
  • FIG. 7 shows a perspective view of the intake module with fuel injection valve in FIG.
  • the example here attracted, multi-cylinder internal combustion engine for a motor vehicle has at least two cylinders 11, one of which is shown in Fig. 1 fragmentary in longitudinal section.
  • Each cylinder 11 comprises a hollow cylindrical cylinder body 12 and a cylinder head 12 which covers the cylinder body 12 on the front side, the cylinder head 13 being two
  • Cylinders 11 is common.
  • a reciprocating piston 14 is axially displaceable - A -
  • an ignition device 16 e.g. a spark plug protrudes.
  • an inlet channel 17 and an outlet channel 18 are formed for each cylinder 11, each opening into the combustion chamber 15 of the respective cylinder 11.
  • Inlet duct 17 and outlet duct 18 are closed off by a controlled inlet valve 19 or controlled outlet valve 20 which, depending on the stroke of their closing member, release a more or less large opening cross-section of the inlet duct 17 or of the outlet duct 18 to the combustion chamber 15.
  • two inlet channels 17 of the two consecutive cylinders 11 are connected to a Saugrohrkrümmer 21, in which an air quantity control member 22, e.g. a throttle valve is arranged, whose position determines the flow of air to the two inlet channels 17.
  • an air quantity control member 22 e.g. a throttle valve is arranged, whose position determines the flow of air to the two inlet channels 17.
  • the two inlet channels 17 form two completely separate flow channels 24 for the combustion air sucked in via the intake manifold elbow 21 from the inlet valves 19 to the attachment point of the intake manifold elbow 21.
  • the exhaust ports 18 of the cylinders 11 are connected to an exhaust manifold 23.
  • a fuel injection device for metering fuel to the internal combustion engine has a common for the fuel injection in two cylinders 11 fuel injection valve 25, which sprays two mutually angularly offset fuel jets 226.
  • fuel injection valves 25 are known and, for example, in DE 38 08 396 Al or
  • the fuel injection valve 25 is inserted directly into the cylinder head 13.
  • the two fuel jets 26 through separate injection channels 27, in each one of
  • Inlet channels 17 open, passed. At their ends facing away from the channel openings 271, the two injection channels 27 are combined in a plug-in chamber 28 for the fuel injection valve 25.
  • the insertion chamber 28 has an outwardly open receiving space 281 for the fuel injection valve 25 and an adjoining Abspritzraum 282, at the bottom 27 congruent openings 272 are provided with the injection channels.
  • the openings 272 are arranged so that the sprayed from the spray holes of the fuel injection valve 25 fuel jet 26 get directly into the injection channels 27.
  • the injection channels 27 flare conically from the openings 272 to the channel mouths 271.
  • the injection channels 27 and the insertion chamber 28 are formed with Aufhahmeraum 281 and Abspritzraum 282 in an adapter 30 which is inserted positively into a cylinder head bore 29 of the cylinder head 13.
  • the cylinder head bore 29 is externally accessible to the cylinder head 13 for insertion of the adapter 30 and ends in both inlet ports 17, wherein through the cylinder head bore 29 a
  • the fuel injection valve 25 of the fuel injection device is arranged not in the cylinder head 13 but in a suction module 32 attached to the cylinder head 13 instead of the intake manifold 21 in Fig. 1, the intake module 32 again opening the ports of both intake ports 17 covered in the cylinder head 13.
  • the suction module 32 shown in perspective in FIG. 6 in longitudinal section and in FIG. 7 as a real embodiment has two separate suction channels 33. After attaching and attaching the suction module 32 to the cylinder head 13, which takes place by means of an integrally formed on the downstream end of the intake module 32 mounting flange 34, each suction channel 33 is aligned with one of the two inlet channels 17 in the cylinder head 13.
  • the two fuel jets 26 emanating from the fuel injection valve 25 are again guided in separate injection channels 27, the channel mouths 271 in the flow channels 24, now in the channel wall of each Suction channel 33, lie.
  • the suction channels 33 are brought together in the same manner as in the previously described embodiment in a plug-in chamber 28, wherein the injection channels 27 and the insertion chamber 28 are integrated in the intake module 32.
  • the operation of the fuel injection device is identical to that of FIG. 1 described fuel injection device.
  • At the upstream end of the intake module 32 may still be connected to a Saugrohrkrümmer in which the two flow channels 24 are combined and an air flow control member 22 is arranged.
  • the integrated insertion chamber 28 and the integrated injection channels 27 to provide a wall bore in the suction module 32, in which the as shown in Fig. 3 to 5 formed adapter 30 is used.
  • the bore is then similar to the cylinder bore 29 in the cylinder head 13 of FIGS. 1 and 2 executed and the adapter 30 is used in the same way to the stop on a the two suction channels 33 separating partition 31, so that in each case one of the channel mouths 271 in a suction channel 33rd lies.

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

La présente invention concerne un dispositif d'injection de carburant pour un moteur à combustion interne comprenant au moins deux soupapes d'admission (19), lequel moteur comprend une voie de circulation d'air destinée à amener l'air de combustion aux soupapes d'admission (19) par l'intermédiaire de deux canaux de circulation (24) séparés l'un de l'autre et menant à chaque soupape d'admission (19) et une soupape d'injection de carburant (25), qui éjecte deux jets de carburant (26) présentant un décalage angulaire l'un par rapport à l'autre et étant orientés en direction de chaque soupape d'admission (19). Afin d'obtenir une répartition homogène du mélange de carburant et d'air sur les deux soupapes d'admission (19) associées à chaque cylindre (11) du moteur à combustion interne à cylindres multiples, les deux jets de carburant (26) éjectés de la soupape d'injection sont guidés dans des canaux d'injection séparés (27), qui comprennent une embouchure (271) située dans chacun des canaux d'écoulement, bien qu'utiliser une seule soupape d'injection pour les deux soupapes d'admission (19) soit plus économique.
PCT/EP2008/063963 2007-11-23 2008-10-16 Dispositif d'injection de carburant WO2009065679A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2010125107/06A RU2493426C2 (ru) 2007-11-23 2008-10-16 Устройство впрыскивания топлива
BRPI0820536-1A BRPI0820536A2 (pt) 2007-11-23 2008-10-16 Dispositivo de injeção de combustível
CN200880117349.6A CN101868615B (zh) 2007-11-23 2008-10-16 燃料喷射装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710056555 DE102007056555A1 (de) 2007-11-23 2007-11-23 Kraftstoffeinspritzvorrichtung
DE102007056555.2 2007-11-23

Publications (1)

Publication Number Publication Date
WO2009065679A1 true WO2009065679A1 (fr) 2009-05-28

Family

ID=40225316

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/063963 WO2009065679A1 (fr) 2007-11-23 2008-10-16 Dispositif d'injection de carburant

Country Status (6)

Country Link
CN (2) CN102966477B (fr)
BR (1) BRPI0820536A2 (fr)
DE (1) DE102007056555A1 (fr)
RU (1) RU2493426C2 (fr)
TW (1) TWI485319B (fr)
WO (1) WO2009065679A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008044056A1 (de) * 2008-11-25 2010-05-27 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
CN102465806B (zh) * 2010-11-08 2013-07-24 胡建华 内燃机
CN105041538A (zh) * 2015-06-26 2015-11-11 中国北车集团大连机车车辆有限公司 多点喷射气体发动机用燃气分配器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150691A (en) * 1991-01-25 1992-09-29 Nissan Motor Co., Ltd. Engine fuel injector
GB2316448A (en) * 1996-08-20 1998-02-25 Hitachi Ltd An intake manifold with single point fuel injection
DE10108541A1 (de) * 2000-02-22 2001-09-06 Hitachi Ltd Verfahren und Vorrichtung zur Kraftstoffeinspritzung für Brennkraftmaschinen
WO2003062624A1 (fr) * 2002-01-23 2003-07-31 Yamaha Hatsudoki Kabushiki Kaisha Dispositif d'alimentation en combustible pour moteurs a combustible gazeux

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU922302A1 (ru) * 1978-12-28 1982-04-23 Московский Трижды Ордена Ленина,Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Автомобильный Завод Им.И.А.Лихачева (Производственное Объединение "Зил") Дизельный двигатель
US4982716A (en) * 1988-02-19 1991-01-08 Toyota Jidosha Kabushiki Kaisha Fuel injection valve with an air assist adapter for an internal combustion engine
DE3808396C2 (de) 1988-03-12 1995-05-04 Bosch Gmbh Robert Kraftstoffeinspritzventil
US5220900A (en) * 1991-02-07 1993-06-22 Siemens Automotive L.P. Air assist atomizer for fuel injector
DE4218896B4 (de) * 1991-06-11 2006-01-19 Denso Corp., Kariya Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine
RU2081342C1 (ru) * 1993-04-22 1997-06-10 Московский государственный автомобильно-дорожный институт Быстроходный дизель
DE4420063A1 (de) 1994-06-08 1995-12-14 Bayerische Motoren Werke Ag Kraftstoff-Einspritzventil mit mehreren Abspritzöffnungen, für eine gemischverdichtende Brennkraftmaschine
DE19624368A1 (de) * 1996-06-19 1998-01-02 Bosch Gmbh Robert Mehrzylindrige fremdgezündete Brennkraftmaschine
JPH10299537A (ja) * 1997-04-28 1998-11-10 Mazda Motor Corp 筒内噴射型火花点火式エンジン
RU2135790C1 (ru) * 1997-05-06 1999-08-27 Московский государственный автомобильно-дорожный институт (Технический университет) Автотракторный дизель
JP4070306B2 (ja) * 1998-06-29 2008-04-02 株式会社辰巳菱機 自動車エンジンへの燃料供給装置
ATE325949T1 (de) * 1999-10-18 2006-06-15 Orbital Eng Pty Brennstoffdirekteinspritzung in einer brennkraftmaschine
ITMI20011625A1 (it) * 2001-07-26 2003-01-26 Piaggio & C Spa Motore due tempi a combustione interna ad iniezione diretta assistitapneumaticamente
TW577958B (en) * 2001-08-16 2004-03-01 Ecogin Systems Inc Internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150691A (en) * 1991-01-25 1992-09-29 Nissan Motor Co., Ltd. Engine fuel injector
GB2316448A (en) * 1996-08-20 1998-02-25 Hitachi Ltd An intake manifold with single point fuel injection
DE10108541A1 (de) * 2000-02-22 2001-09-06 Hitachi Ltd Verfahren und Vorrichtung zur Kraftstoffeinspritzung für Brennkraftmaschinen
WO2003062624A1 (fr) * 2002-01-23 2003-07-31 Yamaha Hatsudoki Kabushiki Kaisha Dispositif d'alimentation en combustible pour moteurs a combustible gazeux

Also Published As

Publication number Publication date
RU2493426C2 (ru) 2013-09-20
CN102966477B (zh) 2015-02-25
DE102007056555A1 (de) 2009-05-28
CN101868615B (zh) 2013-01-23
TWI485319B (zh) 2015-05-21
BRPI0820536A2 (pt) 2015-06-16
RU2010125107A (ru) 2011-12-27
CN101868615A (zh) 2010-10-20
TW200930891A (en) 2009-07-16
CN102966477A (zh) 2013-03-13

Similar Documents

Publication Publication Date Title
DE2807052C2 (fr)
DE2725135C2 (de) Elektromagnetisches Kraftstoff- Einspritzventil für Brennkraftmaschinen
DE69011153T2 (de) Brennkraftmaschine mit Kraftstoffeinspritzeinheit.
DE69328185T2 (de) Vorrichtung zum mischen einer flüssigkeit mit einem gas
DE102008044244A1 (de) Brennkraftmaschine
DE3116954A1 (de) Verfahren zur aufbereitung von kraftstoff und einspritzventil zur durchfuehrung des verfahrens
DE60013730T2 (de) Brennstoffversorgungssystem für Brennkraftmaschine
DE4341545A1 (de) Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
DE2038646A1 (de) Elektromagnetisch betaetigbares Einspritzventil fuer Saugrohreinspritzanlagen
DE102015223601A1 (de) Einlasskanaleinrichtung
WO2009065679A1 (fr) Dispositif d'injection de carburant
EP2370688B1 (fr) Dispositif d'injection de carburant
EP0474623B1 (fr) Moteur à combustion interne à allumage commandé avec balayage du carter de vilebrequin
DE19831063A1 (de) Kraftstoffeinspritzer mit Hilfsluft
DE4103918B4 (de) Mehrloch-Einspritzdüseneinrichtung
DE102008019157B4 (de) Verbrennungsmotor und Verfahren zu dessen Betrieb
DE10326054A1 (de) Vorrichtung zum Betreiben einer Hubkolben-Brennkraftmaschine
DE10023924A1 (de) Kraftstoff-Einspritzeinrichtung
DE2136529B2 (de) Ansaugrohr fuer mehrzylindrige, gemischverdichtende brennkraftmaschinen
DE19918226B4 (de) Kraftstoff/Luft-Einblasvorrichtung
DE835672C (de) Brennstoffeinspritzvorrichtung fuer Brennkraftmaschinen
WO2016169712A1 (fr) Système de canal d'admission d'une machine
DE102007042782A1 (de) Motor, insbesondere für Kraftfahrzeuge
WO1991014093A1 (fr) Dispositif d'injection d'un melange carburant/gaz
DE102008044243A1 (de) Brennkraftmaschine

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880117349.6

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08852673

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2996/CHENP/2010

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2010125107

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 08852673

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: PI0820536

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20100517