EP0386444A1 - Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne - Google Patents

Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne Download PDF

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Publication number
EP0386444A1
EP0386444A1 EP19900101709 EP90101709A EP0386444A1 EP 0386444 A1 EP0386444 A1 EP 0386444A1 EP 19900101709 EP19900101709 EP 19900101709 EP 90101709 A EP90101709 A EP 90101709A EP 0386444 A1 EP0386444 A1 EP 0386444A1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection valve
bayonet
valve
recesses
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
EP19900101709
Other languages
German (de)
English (en)
Other versions
EP0386444B1 (fr
Inventor
Udo Dipl.-Ing. Hafner (Fh)
Heinz-Martin Dipl.-Ing. Krause (Fh)
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 EP0386444A1 publication Critical patent/EP0386444A1/fr
Application granted granted Critical
Publication of EP0386444B1 publication Critical patent/EP0386444B1/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
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • 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
    • 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
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
    • 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
    • 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
    • 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
    • F02M69/50—Arrangement of fuel distributors, e.g. with means for supplying equal portion of metered fuel to injectors

Definitions

  • the invention relates to a fuel distributor for fuel injection systems of internal combustion engines of the type defined in the preamble of claim 1.
  • the electromagnetically actuated fuel injection valves axially inserted in the receiving bores are fixed to the valve carrier by means of a contact strip, which overlaps the part of the fuel injection valves protruding from the receiving bore and hooks them into place in corresponding locking recesses in the valve carrier .
  • this contact strip which simultaneously serves for the electrical contacting of the fuel injection valves, the fuel injection valves are in the axial and radial directions fixed in position.
  • the fuel distributor according to the invention with the characterizing features of claim 1 has the advantage that the fuel injection valves assume their predetermined position even before the contact hood is put on and are reliably fixed both in the axial and in the direction of rotation. This is e.g. during service work, it is possible to check the fuel injection valves in the installed state without interrupting the hydraulic circuit.
  • the end stop for the rotary movement of the bayonet bolt which is usually present in a bayonet fitting, is placed in such a way that the fuel injection valve locked in the receiving bore by the bayonet fitting assumes a certain rotational position, then the jet geometry desired in the installed state will depend solely on the rotational position of the fuel injection valve in the mounting hole depends on each assembly process reliably realized.
  • the contact hood is used as a locking means.
  • the locking lugs on the hood which positively engage in the recesses in the bayonet lock, prevent rotation of the bayonet bolt in the bayonet lock, so that the fuel injection valve is reliably fixed both in its axial and in its rotational position.
  • the fuel rail is therefore also suitable for rough operating conditions.
  • the fuel distributor for fuel injection layers of internal combustion engines which is shown only in part in FIG. 1, serves for the mounting, fuel supply and electrical contacting of electromagnetically actuated fuel injection valves. It has a valve carrier 11 with a plurality of stepped receiving bores 12, which are open on both sides and in each of which a fuel injection valve 10 is inserted is.
  • the fuel injection valve 10 protrudes with its injection nozzle 13 through an orifice 14 of the receiving bore 12 and is connected to a fuel supply line 15 and an invisible return flow line which are guided in the valve carrier 11.
  • the fuel supplied via the fuel supply line 15 enters the interior of the fuel injection valve 10 via openings and can be partially sprayed from there via the injection nozzle 13 and partly flow upwards and emerge via further openings into the region of the receiving bores 12, which is from the return flow line is touched.
  • the separate return flow line can be omitted.
  • the fuel injection valve 10 is sealed in the receiving bore 12 by means of two thick O-rings 31, 32.
  • a bayonet lock 16 surrounding the receiving bore 12 and a bayonet lock 17 which forms a bayonet lock 30 with the bayonet lock 16 and is provided on the valve housing of the fuel injection valve 10 and which consists of two locking tabs 171, 172 diametrically opposed to the valve housing.
  • the bayonet lock 16 carries, in a known manner, two recesses 18, 19 for the axial insertion of the locking tabs 171, 172 into the bayonet lock 16 and two adjoining overlapping sections 20, 21 which, after the bayonet lock 17 inserted into the recesses 18, 19 with the locking tabs 171, 172, rotate Reach over latch flaps 171, 172.
  • a stop 22 and 23 for the locking tabs 171 and 172 respectively.
  • the stops 22, 23 place the rotational position of the fuel injection valve 10 in the receiving bore 12 and thus the injection geometry of the Fuel injection valve 10 fixed and take a corresponding position.
  • the width of the locking tabs 171, 172 measured in the circumferential direction is dimensioned with regard to the position of the stops 22, 23 so that when the locking tabs 171, 172 bear against the stops 22, 23, the locking tabs 171, 172 are completely covered by the overlapping sections 20, 21 and to the cutouts 18,19 are flush with the overlap sections 20,21.
  • a plug hood 24 which covers the part of the fuel injection valve 10 protruding from the receiving bore 12 and closes the receiving bore 12, is used to contact the electromagnetically actuated fuel injection valve 10.
  • a connector hood 24 can be placed on each fuel injection valve 10. The connector hoods 24 can - as described in DE 37 30 571 A1 - be combined into a common contact strip.
  • the connector hood 24 contains contact elements 25 which, when the connector hood 24 is placed on the protruding end of the fuel injection valve 10, sit on contact pins 26 which protrude from the fuel injection valve 10.
  • the contact pins 26 are electrically conductively connected to the excitation winding of the actuating magnet of the fuel injection valve 10.
  • the contact elements 25 are electrically conductively connected to connector plugs protruding from the connector hood 24.
  • the connector hood 24 On its end face 27 which can be placed on the valve carrier 11, the connector hood 24 carries two axially projecting locking pins 28, 29 which engage positively in the recesses 18, 19 in the bayonet lock 16 when the connector hood 24 is placed on the fuel injector 10. These locking pins 28, 29 prevent the bayonet bolt 17 from turning back and thus fix that into the Receiving bore 12 used fuel injector 10 both in the axial direction and in the direction of rotation.

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)
EP90101709A 1989-03-10 1990-01-29 Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne Expired - Lifetime EP0386444B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907764A DE3907764A1 (de) 1989-03-10 1989-03-10 Kraftstoffverteiler fuer kraftstoffeinspritzanlagen von brennkraftmaschinen
DE3907764 1989-03-10

Publications (2)

Publication Number Publication Date
EP0386444A1 true EP0386444A1 (fr) 1990-09-12
EP0386444B1 EP0386444B1 (fr) 1992-04-15

Family

ID=6376002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101709A Expired - Lifetime EP0386444B1 (fr) 1989-03-10 1990-01-29 Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne

Country Status (7)

Country Link
US (1) US5016594A (fr)
EP (1) EP0386444B1 (fr)
JP (1) JP2962756B2 (fr)
KR (1) KR970009537B1 (fr)
AU (1) AU614458B2 (fr)
BR (1) BR9001128A (fr)
DE (2) DE3907764A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015780A1 (fr) * 1991-03-04 1992-09-17 Siemens Aktiengesellschaft Connecteur electrique multifonction destine a etre fixe sur un injecteur monte sur une rampe d'alimentation de carburant
EP0565867A2 (fr) * 1992-04-16 1993-10-20 Sumitomo Wiring Systems, Ltd. Connecteur anti-rotatif
US5479900A (en) * 1993-09-03 1996-01-02 Robert Bosch Gmbh Device for attaching and securing a valve
US8215289B2 (en) 2008-12-22 2012-07-10 Robert Bosch Gmbh Fuel-injection device

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261375A (en) * 1989-11-06 1993-11-16 General Motors Corporation Fuel injection assembly for integrated induction system
DE4002393A1 (de) * 1990-01-27 1991-08-01 Bosch Gmbh Robert Kraftstoffeinspritzsystem fuer brennkraftmaschinen
DE4013875A1 (de) * 1990-04-30 1991-10-31 Bosch Gmbh Robert Verbindung eines magnetventils mit einem gehaeuseblock
US5168625A (en) * 1990-06-29 1992-12-08 Siemens Automotive L.P. Method of making fuel rail for bottom and side fed injectors by extrusion
US5211149A (en) * 1990-06-29 1993-05-18 Siemens Automotive L.P. Fuel rail for bottom and side fed injectors
US5111794A (en) * 1990-06-29 1992-05-12 Siemens Automotive L.P. Fuel rail for bottom and side fed injectors
US5127382A (en) * 1990-09-17 1992-07-07 Siemens Automotive L.P. Electrical connector bar for a fuel injector/fuel rail assembly and method of making
DE4206370A1 (de) * 1991-05-17 1992-11-19 Mann & Hummel Filter Steuerleiste in kunststoffkompaktbauweise
DE4118512A1 (de) * 1991-06-06 1992-12-10 Bosch Gmbh Robert Elektrisch betaetigbares brennstoffeinspritzventil und verfahren zu dessen elektrischer kontaktierung
US5121731A (en) * 1991-06-20 1992-06-16 Siemens Automotive L.P. Means for mounting a fuel injector on a fuel rail
US5140963A (en) * 1991-06-20 1992-08-25 Siemens Automotive Limited Fuel rail mounting for a fuel injector
US5178114A (en) * 1991-08-06 1993-01-12 Siemens Automotive L.P. Fuel rail end closure and electrical connector
DE4128086A1 (de) * 1991-08-24 1993-02-25 Bosch Gmbh Robert Brennstoffverteiler
DE4131537A1 (de) * 1991-09-21 1993-04-01 Bosch Gmbh Robert Brennstoffverteiler
US5176121A (en) * 1992-04-06 1993-01-05 Siemens Automotive Limited Bumpers for protecting an O-ring seal of a fuel injector during the injector's insertion into a socket
DE4240130C2 (de) * 1992-11-28 1995-06-08 Daimler Benz Ag Kraftstoffverteiler für Kraftstoffeinspritzanlagen von Brennkraftmaschinen
JP3301354B2 (ja) * 1996-12-24 2002-07-15 トヨタ自動車株式会社 燃料噴射装置
US6325049B1 (en) * 1999-06-23 2001-12-04 Siemens Automotive Corporation Fuel injector with orientation feature for orienting injector with respect to the manifold or head
EP1224390B1 (fr) * 1999-09-10 2004-06-16 International Engine Intellectual Property Company, LLC. Systeme de distribution de fluide d'actionnement pour injecteur de carburant
US6422205B2 (en) 2000-01-27 2002-07-23 Siemens Automotive Corporation Twist off pressure regulator connector assembly
DE10038301A1 (de) * 2000-08-05 2002-02-14 Bosch Gmbh Robert Brennstoffeinspritzventil
US6418912B1 (en) 2000-12-18 2002-07-16 Siemens Automotive Corporation HPDI injector and packaging
US6619314B2 (en) 2001-08-07 2003-09-16 Siemens Automotive Corporation Apparatus and method for sealing a fuel component in a fuel communication passage
DE10240130A1 (de) 2002-08-30 2004-03-18 Robert Bosch Gmbh Steckverbindung für medienführende Leitungen
DE10360334A1 (de) * 2003-12-20 2005-07-14 Robert Bosch Gmbh Kraftstoffrücklaufsystem mit Drossel
DE10360335A1 (de) 2003-12-20 2005-07-14 Robert Bosch Gmbh Steckverbinder für Leistungssysteme mit variabler Schlauchführung
EP2187035B1 (fr) * 2005-03-03 2013-02-27 Robert Bosch GmbH Dispositif d'injection de carburant
DE602006005796D1 (de) * 2006-06-01 2009-04-30 Continental Automotive Gmbh Verbinder und Verbundanordnung
DE102006061952B4 (de) 2006-12-29 2021-03-25 Robert Bosch Gmbh Kraftstoffinjektor mit einem Steckverbinder
US7775235B2 (en) * 2007-05-31 2010-08-17 Synerject, Llc Apparatus and methods for containing a fuel pressure regulator
US20090084358A1 (en) * 2007-09-28 2009-04-02 Millennium Industries Fuel injector mounting scheme
DE102009028473A1 (de) 2009-08-12 2011-02-17 Robert Bosch Gmbh Steckverbindung
DE102009046618B4 (de) * 2009-11-11 2023-09-21 Zf Friedrichshafen Ag Vorrichtung zur Befestigung und Kontaktierung von Stellgliedern
JP5584637B2 (ja) * 2011-02-18 2014-09-03 株式会社水道技術開発機構 仕切弁
DE102011087687B4 (de) * 2011-12-05 2021-04-15 Schaeffler Technologies AG & Co. KG Befestigungseinrichtung für ein Bauteil an einem Gehäuseblock mittels Bajonett
DE102013111456B4 (de) 2013-10-17 2018-09-13 Otto Egelhof Gmbh & Co. Kg Abschaltventil
DE102015222190B4 (de) * 2015-11-11 2019-03-28 Itt Manufacturing Enterprises Llc Steckverbinder und Motor- oder Ventilabdeckungselement umfassend einen Steckverbinder

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Publication number Priority date Publication date Assignee Title
DE933002C (de) * 1953-05-08 1955-12-29 Daimler Benz Ag Vorrichtung zur Drehsicherung von Einspritzduesen in Brennkraftmaschinen
DE1010783B (de) * 1953-05-05 1957-06-19 Daimler Benz Ag Vorrichtung zur Befestigung von Pumpen- oder Duesenaggregaten an Brennkraftmaschinen
US4475516A (en) * 1983-05-02 1984-10-09 General Motors Corporation Fuel rail assembly and clip
DE8713284U1 (de) * 1987-10-02 1987-12-23 Audi AG, 8070 Ingolstadt Vorrichtung zum Verbinden einer Einspritzdüse mit einem Anschlußstutzen bei einer Kraftstoff-Einspritzanlage für Brennkraftmaschinen
EP0278229A2 (fr) * 1987-02-06 1988-08-17 Robert Bosch Gmbh Dispositif pour le contact électrique d'injecteurs de carburant à commande électromagnétique
DE3730571A1 (de) * 1987-09-11 1989-03-23 Bosch Gmbh Robert Vorrichtung zur halterung, kraftstoffversorgung und elektrischen kontaktierung von elektromagnetisch betaetigbaren kraftstoffeinspritzventilen

Family Cites Families (3)

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DE2242824C3 (de) * 1972-08-31 1975-05-15 Dr.-Ing.H.C. F. Porsche Ag, 7000 Stuttgart Brennstoffeinspritzdüsenbefestigung
JPS6131173A (ja) * 1984-07-24 1986-02-13 菊地　眞 ハイパサ−ミア用加温装置
GB2195394A (en) * 1986-09-17 1988-04-07 Ford Motor Co Fuel injection system component

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010783B (de) * 1953-05-05 1957-06-19 Daimler Benz Ag Vorrichtung zur Befestigung von Pumpen- oder Duesenaggregaten an Brennkraftmaschinen
DE933002C (de) * 1953-05-08 1955-12-29 Daimler Benz Ag Vorrichtung zur Drehsicherung von Einspritzduesen in Brennkraftmaschinen
US4475516A (en) * 1983-05-02 1984-10-09 General Motors Corporation Fuel rail assembly and clip
EP0278229A2 (fr) * 1987-02-06 1988-08-17 Robert Bosch Gmbh Dispositif pour le contact électrique d'injecteurs de carburant à commande électromagnétique
DE3730571A1 (de) * 1987-09-11 1989-03-23 Bosch Gmbh Robert Vorrichtung zur halterung, kraftstoffversorgung und elektrischen kontaktierung von elektromagnetisch betaetigbaren kraftstoffeinspritzventilen
DE8713284U1 (de) * 1987-10-02 1987-12-23 Audi AG, 8070 Ingolstadt Vorrichtung zum Verbinden einer Einspritzdüse mit einem Anschlußstutzen bei einer Kraftstoff-Einspritzanlage für Brennkraftmaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015780A1 (fr) * 1991-03-04 1992-09-17 Siemens Aktiengesellschaft Connecteur electrique multifonction destine a etre fixe sur un injecteur monte sur une rampe d'alimentation de carburant
EP0565867A2 (fr) * 1992-04-16 1993-10-20 Sumitomo Wiring Systems, Ltd. Connecteur anti-rotatif
EP0565867A3 (en) * 1992-04-16 1993-12-01 Sumitomo Wiring Systems Anti-rotation connector
US5479900A (en) * 1993-09-03 1996-01-02 Robert Bosch Gmbh Device for attaching and securing a valve
US8215289B2 (en) 2008-12-22 2012-07-10 Robert Bosch Gmbh Fuel-injection device

Also Published As

Publication number Publication date
JPH02271068A (ja) 1990-11-06
BR9001128A (pt) 1991-03-05
US5016594A (en) 1991-05-21
DE59000084D1 (de) 1992-05-21
KR900014734A (ko) 1990-10-24
AU4895790A (en) 1990-09-13
KR970009537B1 (ko) 1997-06-14
DE3907764A1 (de) 1990-09-13
AU614458B2 (en) 1991-08-29
JP2962756B2 (ja) 1999-10-12
EP0386444B1 (fr) 1992-04-15

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