EP0666417A1 - Anordnung eines Kraftstoffeinspritzmotors mit belüfteten Einspritzdüsen - Google Patents

Anordnung eines Kraftstoffeinspritzmotors mit belüfteten Einspritzdüsen Download PDF

Info

Publication number
EP0666417A1
EP0666417A1 EP94403012A EP94403012A EP0666417A1 EP 0666417 A1 EP0666417 A1 EP 0666417A1 EP 94403012 A EP94403012 A EP 94403012A EP 94403012 A EP94403012 A EP 94403012A EP 0666417 A1 EP0666417 A1 EP 0666417A1
Authority
EP
European Patent Office
Prior art keywords
housing
injectors
air
distribution channel
arrangement 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
EP94403012A
Other languages
English (en)
French (fr)
Other versions
EP0666417B1 (de
Inventor
Martial Dore
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0666417A1 publication Critical patent/EP0666417A1/de
Application granted granted Critical
Publication of EP0666417B1 publication Critical patent/EP0666417B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • F02M69/047—Injectors peculiar thereto injectors with air chambers, e.g. communicating with atmosphere for aerating the nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • 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
    • F02M69/08—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by the fuel being carried by compressed air into main stream of combustion-air
    • 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
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails

Definitions

  • the present invention relates to a petrol injection engine arrangement comprising ventilated injectors usually called air mantle injectors.
  • a petrol injection engine of the type comprising petrol injectors associated with combustion chambers of the engine cylinders, a rigid housing connected to the ends of the petrol supply. injectors, delimiting a fuel distribution channel in the injectors, and a circuit for ventilating the injector noses comprising an air distribution channel, provided with orifices opening out in the vicinity of the injector noses, and connection means from this air distribution channel to the rest of the ventilation circuit.
  • the air ventilated at the level of the injectors' noses improves the spraying of the petrol by increasing the relative speed between the air and the petrol.
  • the gasoline engine is supplied with air by means of a circuit comprising an air filter connected by an intermediate connection member to an air throttle unit itself connected to a gas intake manifold of the motor.
  • the air distribution channel of the ventilation circuit of the injector noses is connected to the air filter by a flexible pipe connected to the intermediate connection member.
  • the object of the invention is to remedy these problems and minimize the length of the flexible pipe in order to reduce the pressure losses of the air circulating in this pipe.
  • the subject of the invention is an arrangement of a petrol injection engine, of the aforementioned type, characterized in that the means for connecting the air distribution channel to the rest of the ventilation circuit comprise an air supply duct integrated into the housing.
  • FIG. 1 shows a front part 10 of a motor vehicle, provided with a cover 12 for access, in which a motor 14 with petrol injection is arranged transversely.
  • This front part 10 includes an engine arrangement according to the invention, designated by the general reference 16.
  • FIG. 1 also recognizes conventional means for supplying air to the engine comprising an air filter 18 connected to an air butterfly housing 22 by an intermediate connection member 20 disposed between this filter 18 and this housing 22, this last being itself connected to a gas intake manifold 24 which is shown in more detail in FIG. 2.
  • the engine 14 comprises a cylinder block not shown in the figures, in which four aligned cylinders are provided, and a cylinder head 26, shown in FIG. 3, attached to the cylinder block along a joint plane 28.
  • each intake duct 32 opening into the combustion chamber 30 has an orifice closed by a valve 38 shown in phantom in FIG. 3.
  • FIG. 3 also recognizes a spark plug 40 and a fuel injector 42 associated with each combustion chamber 30, these elements being known per se.
  • the engine 14 comprises a row of four injectors 42.
  • the latter are carried for example by the intake manifold 24 by sealingly fitting their noses 44 into sockets 46 made integrally with the manifold.
  • the noses 44 of the injectors are arranged in the intake pipes 34 according to an arrangement known per se which will not be described in more detail.
  • the arrangement 16 also includes a circuit for ventilating the noses 44 of the injectors comprising an air distribution channel 52, of known type, formed for example in the manifold 24 as shown in more detail in FIG. 6, provided with orifices 54 opening in the vicinity of the noses 44 of the injectors.
  • a circuit for ventilating the noses 44 of the injectors comprising an air distribution channel 52, of known type, formed for example in the manifold 24 as shown in more detail in FIG. 6, provided with orifices 54 opening in the vicinity of the noses 44 of the injectors.
  • This channel 52 is supplied with air coming from the filter 18 via the intermediate connection member 20, a flexible pipe 56 and the housing 50 connected in series (see FIG. 1).
  • the housing 50 has a generally rectilinear shape parallel to the direction of alignment of the injectors 42 and comprises a longitudinal partition 57 delimiting two compartments, one forming a channel 58 for distributing petrol in the injectors and the other a duct 60 for supplying air to the air distribution channel 52.
  • the fuel distribution channel 58 has a general chicane shape, known per se, so that orifices 59A, 59B for the fuel inlet and for the delivery of fuel not consumed by the injectors are arranged at the same end. of the housing 50.
  • conventional means 62 are recognized for connecting these orifices 59A, 59B to the rest of the petrol supply circuit, these means 62 having come integrally with the end of the housing 50.
  • the fuel distribution channel 58 comprises orifices 64 for supplying the injectors 42 extended by end pieces 66 made integrally with the housing 50 in which the supply ends of the injectors are fitted in leaktight manner.
  • the air supply duct 60 extends along the length of the housing 50 and has a first end connected to the flexible duct 56, disposed at the end of the housing opposite the means 62, and a second end connected to the air distribution channel, disposed substantially in the middle of the housing 50.
  • connection orifice 72 opens out substantially in the middle of the length of the air distribution channel 52 in order to allow good distribution of the air in this channel and in the ventilation orifices 54.
  • FIGS. 4 to 6 the directions of circulation of petrol and air have been represented by arrows without reference.
  • the housing 50 is mounted on the injectors 42, after assembly of the latter in the sockets 46, by fitting the end pieces 66 on the supply ends 48 of the injectors.
  • FIG 7 there is shown an alternative embodiment of the connector connecting the air supply duct 60 to the air distribution channel 52, the connector being designated in this case by the reference 70A.
  • the connector 70A has come integrally with the housing 50 and its free end is fitted in a sealed manner in an orifice 72A, machined in the manifold 24, communicating with the air distribution channel 52.
  • This variant embodiment of the connector makes it possible to simplify the means of connection between the air supply duct 60 and the air distribution channel 52 by eliminating the sealing means between the housing and the fitting as well as the positioning means. of this fitting. This variant also saves time during assembly of the housing 50.
  • the invention has many advantages.
  • the flexible pipe connecting the intermediate connection member, disposed between the air filter and the air throttle housing, at one end of the rigid housing covering the injectors is shorter than in conventional arrangements in which the flexible pipe generally extends to the middle of the air distribution channel, which makes it possible to reduce the pressure losses in this pipe.
  • the box in which the ventilation air flows from the injectors' noses and the gasoline supplying these injectors is very easy to assemble.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP19940403012 1994-01-10 1994-12-23 Anordnung eines Kraftstoffeinspritzmotors mit belüfteten Einspritzdüsen Expired - Lifetime EP0666417B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9400176A FR2714934B1 (fr) 1994-01-10 1994-01-10 Agencement de moteur à injection d'essence comportant des injecteurs ventilés.
FR9400176 1994-01-10

Publications (2)

Publication Number Publication Date
EP0666417A1 true EP0666417A1 (de) 1995-08-09
EP0666417B1 EP0666417B1 (de) 1998-05-06

Family

ID=9458884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940403012 Expired - Lifetime EP0666417B1 (de) 1994-01-10 1994-12-23 Anordnung eines Kraftstoffeinspritzmotors mit belüfteten Einspritzdüsen

Country Status (3)

Country Link
EP (1) EP0666417B1 (de)
DE (1) DE69410074T2 (de)
FR (1) FR2714934B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997030282A1 (de) * 1996-02-12 1997-08-21 Filterwerk Mann + Hummel Gmbh Ansaugsystem
FR2779681A1 (fr) * 1998-06-10 1999-12-17 Coutier Moulage Gen Ind Ensemble repartiteur d'admission/rampe d'injection assembles par un dispositif de raccordement rapide
FR2804723A1 (fr) * 2000-01-21 2001-08-10 Bosch Gmbh Robert Element distributeur de carburant pour une installation d'alimentation en carburant d'un moteur a combustion interne

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788287A (en) * 1972-02-18 1974-01-29 Gen Motors Corp Fuel injection system
DE3228508A1 (de) * 1982-07-30 1984-02-02 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffversorgungsleitung
US4475486A (en) * 1982-02-18 1984-10-09 General Motors Corporation Engine induction system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788287A (en) * 1972-02-18 1974-01-29 Gen Motors Corp Fuel injection system
US4475486A (en) * 1982-02-18 1984-10-09 General Motors Corporation Engine induction system
DE3228508A1 (de) * 1982-07-30 1984-02-02 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffversorgungsleitung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997030282A1 (de) * 1996-02-12 1997-08-21 Filterwerk Mann + Hummel Gmbh Ansaugsystem
US6148799A (en) * 1996-02-12 2000-11-21 Filterwerk Mann & Hummel Gmbh Intake system
FR2779681A1 (fr) * 1998-06-10 1999-12-17 Coutier Moulage Gen Ind Ensemble repartiteur d'admission/rampe d'injection assembles par un dispositif de raccordement rapide
FR2804723A1 (fr) * 2000-01-21 2001-08-10 Bosch Gmbh Robert Element distributeur de carburant pour une installation d'alimentation en carburant d'un moteur a combustion interne

Also Published As

Publication number Publication date
DE69410074D1 (de) 1998-06-10
EP0666417B1 (de) 1998-05-06
DE69410074T2 (de) 1999-01-07
FR2714934A1 (fr) 1995-07-13
FR2714934B1 (fr) 1996-03-29

Similar Documents

Publication Publication Date Title
JP4003856B2 (ja) 船外機
EP0210098B1 (de) Zylinderkopf für Brennkraftmaschine mit Kraftstoffeinspritzung
JP2010242618A (ja) 内燃機関の吸気装置
JP4888541B2 (ja) 内燃機関の吸気装置
EP1020632A1 (de) Ansaugkrümmer mit Verbindungsmitteln zu einem Abgasrückführungskreislauf
BE1015284A3 (fr) Collecteur d'admission de moteur hors-bord.
EP1957787B1 (de) Luftzufuhrverteiler für einen verbrennungsmotor
US6971371B2 (en) Air-fuel mixing and delivery apparatus for an internal combustion engine
EP0666417B1 (de) Anordnung eines Kraftstoffeinspritzmotors mit belüfteten Einspritzdüsen
JP2010071111A (ja) 吸気ダクト及び吸気構造
JP4353434B2 (ja) 燃料供給装置、車両、及び燃料供給装置の組立方法
EP0470874B1 (de) Brennkraftmaschine mit Lufteinlasseinrichtung integriert in einem Zylinderkopf
EP0846223B2 (de) Ansaugkrümmer für brennkraftmaschine
JP3154878U (ja) エンジン
EP0480787B1 (de) Brennkraftmaschine mit einer Vorrichtung zum Einblasen von Luft in die Abgasanlage
FR2774130A1 (fr) Moteur a combustion interne comportant un circuit d'admission d'air compact
FR2894296A1 (fr) Repartiteur d'air d'alimentation pour moteur a combustion interne
FR2738035A1 (fr) Collecteur d'admission pour moteur a combustion interne
EP0669455A1 (de) Einlassvorrichtung für Brennkraftmaschine
EP0907827B1 (de) System zur direkt-einspritzung von brennstoff im verbrennungsraum eines zylinders einer brennkraftmaschine
JP3074076B2 (ja) 自動二輪車用エンジンの潤滑油供給装置
EP0518725B1 (de) Auszugvorrichtung für Brennkraftmaschine
FR2843173A1 (fr) Injecteur de carburant gazeux ayant une chambre de compensation et une chambre de distribution reliees par un conduit
FR2778944A1 (fr) Moteur a combustion interne equipe d'un compresseur
JP5039672B2 (ja) 燃料噴射構造及びこれを備える乗物

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19950428

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

17Q First examination report despatched

Effective date: 19970129

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

ITF It: translation for a ep patent filed

Owner name: GUZZI E RAVIZZA S.R.L.

REF Corresponds to:

Ref document number: 69410074

Country of ref document: DE

Date of ref document: 19980610

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980615

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20070115

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20071212

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20071129

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20071129

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20081223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081223