EP0530337B1 - Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch betätigbarer brennstoffeinspritzventile - Google Patents

Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch betätigbarer brennstoffeinspritzventile Download PDF

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Publication number
EP0530337B1
EP0530337B1 EP92905557A EP92905557A EP0530337B1 EP 0530337 B1 EP0530337 B1 EP 0530337B1 EP 92905557 A EP92905557 A EP 92905557A EP 92905557 A EP92905557 A EP 92905557A EP 0530337 B1 EP0530337 B1 EP 0530337B1
Authority
EP
European Patent Office
Prior art keywords
multipoint
plug
fuel injection
housing
carrier part
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.)
Expired - Lifetime
Application number
EP92905557A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0530337A1 (de
Inventor
Karl Gmelin
Thomas Gregorius
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 EP0530337A1 publication Critical patent/EP0530337A1/de
Application granted granted Critical
Publication of EP0530337B1 publication Critical patent/EP0530337B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3005—Details not otherwise provided for
    • 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
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/21—Engine cover with integrated cabling
    • 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
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails

Definitions

  • the invention is based on a contact strip according to the type of the main claim.
  • a contact strip for the common electrical contacting of a plurality of electrically actuable fuel injection valves is already known, which has a contact strip housing with line channels in which the electrical lines contacting the electrically actuable fuel injection valves are arranged.
  • the contact strip housing has a number of plugs corresponding to the number of fuel injectors, which partially surround the fuel injectors at their ends facing away from the spraying ends and have the connector plugs in the direction of the respective valve longitudinal axis and make electrical contact with the connector plugs.
  • This contact strip is only suitable for side-feed and bottom-feed fuel injectors, that is to say for fuel injectors to which the fuel is supplied on its circumference and whose electrical connection takes place at its end facing away from the spray end.
  • EP-A-0 302 608 is a contact strip with a contact strip housing, in which electrical connection lines run and lead to plugs arranged on the contact strip housing. These plugs arranged on the contact strip housing are rigidly connected to one plug of a fuel injector.
  • the result is between e.g. Rigidly mounted on an intake pipe of the internal combustion engine contacting strip and the fuel injection valves to relative movements that can lead to high wear on the contact elements of the plug of the contacting strip and the connector plugs of the fuel injection valves.
  • the contact strip according to the invention with the characterizing features of the main claim has the advantage, in contrast, to ensure simple and safe contacting of a plurality of electrically actuable fuel injectors, which can be of any type.
  • the carrier part which is connected to the contact strip housing and has at least one conductor channel, can be produced in a very simple and inexpensive manner and permits a very compact construction of the contact strip according to the invention.
  • the electrical contact lines protruding from the contact strip can be provided with various electrical plug-in elements, so that the contact strip can be used variably for contacting various fuel injection valves.
  • the separate contacting of the individual fuel injection valves enables the fuel injection valves to move freely to compensate for tolerances during assembly and for temperature-related expansions during operation of the internal combustion engine. Also find Despite the vibration stress during operation of the internal combustion engine, there are almost no relative movements between the fuel injection valves and the respective electrical plug-in elements.
  • the contact strip according to the invention allows the formation of an assembly and service-friendly, from the contact strip and e.g. an existing overall fuel system. Checking a single fuel injector is easy.
  • the attachment of the fuel distributor, for example on an intake pipe of the internal combustion engine, is independent of the attachment of the contact strip, so that the contact strip can also be removed individually.
  • the contact strip itself can be produced in a simple and inexpensive manner.
  • the side faces of the at least one groove-shaped conductor channel of the carrier part are each formed by two adjacent webs formed on the carrier part, so that the groove-shaped conductor channels can be formed particularly easily.
  • the carrier part is connected to the contact strip housing by means of a snap-in connection.
  • the contact strip housing is formed by at least partially plastic encapsulation of the carrier part.
  • the carrier part is part of the contact strip housing.
  • a contact strip designed in this way can be produced particularly easily and inexpensively.
  • the at least one electrical connecting line is held in the respective conductor channel of the carrier part by thermal deformation of the carrier part consisting of plastic.
  • the contacting strip can be connected to a fuel distributor by means of a latching connection and thus in a simple manner.
  • an electrical connector plug serving for the electrical connection of the contact strip is also molded onto the contact strip housing.
  • FIG. 1 and FIG. 2 show a contact strip designed according to the invention in accordance with a first, a second or a third exemplary embodiment
  • FIG. 3 shows a section along the line III-III in FIG. 1 in accordance with the first exemplary embodiment with a fuel injector
  • FIG. 4 shows a section partially shown the line IV-IV in Figure 1 according to the first embodiment
  • Figure 5 is a partially shown section along the line VV in Figure 1 according to the second embodiment
  • Figure 6 is a partially shown section along the Line VI-VI in Figure 1 according to the third embodiment
  • Figure 7 shows a contact strip according to the invention according to a fourth embodiment.
  • the contacting strip for example shown in the drawing according to FIGS. 1, 2 and 7, for the common electrical contacting of a plurality of electrically actuable fuel injection valves, for example for fuel injection systems of mixed-compression spark-ignition internal combustion engines, is designated by 1.
  • the contact strip 1 has a contact strip housing 3 and is connected to it, for example, with a fuel distributor 5 by means of a snap connection 4.
  • the fuel distributor 5 is used to supply fuel to fuel injection valves and has, for example, a central inflow cross section 6 and a number of connecting pieces 7 which is connected to the central inflow cross section 6 and corresponds to the number of cylinders in the internal combustion engine.
  • the connecting pieces 7 each have a longitudinal opening 9, which serves to receive an inlet end 17 of a fuel injector 11 of the top feed type shown for example in FIG.
  • the fuel injection valve 11 has at one end an injection end 13 and at its end remote from the injection end 13 the inlet end 17, which runs concentrically to a longitudinal axis 15 of the valve.
  • the fuel injection valves 11 are arranged with their inlet ends 17, for example, in the longitudinal openings 9 of the connecting pieces 7 of the fuel distributor 5 in such a way that the longitudinal openings 9 closely surround the inlet ends 17 of the fuel injection valves 11 with the interposition of a sealing ring 18 and tightly.
  • the fuel injection valves 11 On their circumference, the fuel injection valves 11 have connecting plugs 19 which are inclined towards the spray end 13 and which are used to make electrical contact with the respective fuel injection valve 11 relative to the respective valve longitudinal axis 15.
  • the contact strip 1 consists of e.g. an approximately U-shaped cross-section of the contact strip housing 3 and, for example, a plate-shaped carrier part 21 made of a plastic and extending in the direction of a longitudinal axis 23.
  • the contact strip housing 3 has a central cover part 25 extending in the direction of the longitudinal axis 23 the cover part 25 on a first leg 27 and a second leg 29 which run at right angles and parallel to one another with respect to the cover part 25 and which, like the cover part 25, extend in the direction of the longitudinal axis 23 of the contact strip 1.
  • the plate-shaped carrier part 21 is arranged in the contact strip housing 3 such that it is partially surrounded by the contact strip housing 3, extends between the legs 27, 29 and extends parallel to the cover part 25.
  • the carrier part 21 it is also possible for the carrier part 21 to have a square, circular or oval cross section rather than a plate-shaped one.
  • the legs 27, 29 of the contacting strip housing 3, facing away from the cover part 25, have a plurality of first housing openings 31, into which locking lugs 33 formed on the circumference of the fuel distributor 5 protrude in the assembled state and thus form the locking connection 4 between the contacting strip 1 and the fuel distributor 5.
  • recesses can also be formed on the circumference of the fuel distributor 5 and the detents 33 on the legs 27, 29 of the contact strip housing 3, so that the recesses and the detents 33 form the detent connection 4.
  • the contact strip 1 and the fuel distributor 5 can be connected to one another, for example by a screw connection, an adhesive connection, a clamp connection or some other connection.
  • the plate-shaped carrier part 21 has, for example, on its upper end face 35 facing away from the fuel distributor 5, facing the cover part 23 of the contact strip housing 3, at least two, in the illustrated exemplary embodiments e.g. seven webs 37 on.
  • the webs 37 run, for example, parallel to the longitudinal axis 23 of the contact strip 1.
  • Groove-shaped conductor channels 39 are formed between each two adjacent webs 37.
  • the groove-shaped conductor channels 39 have a bottom 41 which is formed by the upper end face 35 of the carrier part 21 and side surfaces 43 which are formed by the two adjacent webs 37. In the direction of the cover part 25 of the contact strip housing 3, the groove-shaped conductor channels 39 are open.
  • each of the six groove-shaped conductor channels 39 for example, at least one, in the exemplary embodiments shown exactly one electrical connecting line 45 is arranged.
  • the electrical connection lines 45 can be held in the groove-shaped conductor channels 39 by deformation of the webs 37 of the carrier part 21 consisting of a plastic, as in the first exemplary embodiment according to the invention his.
  • Thermal deformation can e.g. can be achieved by caulking the material of the webs 37 of the carrier part 21 towards one another by means of ultrasonic welding.
  • the connecting lines 45 arranged in conductor channels 39 can be provided with plastic insulation, as shown in the exemplary embodiments. But it can be on plastic insulation can be dispensed with if, for example, the carrier part 21 with its webs 37 is made of an electrically insulating plastic, as in the exemplary embodiments.
  • the connecting lines 45 protrude, for example, with their one ends from one end 47 of the contact strip 1 in the form of an electrical connecting cable 49 (FIG. 1) and are electrically connected to a connecting plug 51. Electrical control signals for the electrically actuable fuel injection valves can be input via the connector 51 from an electronic control device of known type, not shown.
  • the fourth exemplary embodiment according to the invention shown in FIG. 7 shows, to connect the electrical connector 51 used for the electrical connection of the contact strip 1 directly to the contact strip housing 3 of the contact strip 1, e.g. molded in the area of the end 47 of the contact strip 1.
  • the electrical connection lines 45 run in the conductor channels 39 of the carrier part 21 and branch inside the contact strip 1 into electrical contact lines 55 (FIG. 3), which are used for direct electrical contacting of the individual electrically actuable fuel injection valves 11 and protrude through openings 56 from the contact strip housing 3.
  • the branching points at which the electrical connecting lines 45 branch into electrical contact lines 55 are electrically insulated in a manner not shown, for example by casting, gluing or by sealing using an elastomer.
  • the at least two contact lines 55 protrude from the contact strip 1 with their one ends.
  • two contact lines 55 are provided for each fuel injection valve 11 and protrude from the contact strip 1 in the area of the respective connecting piece 7 of the fuel distributor 5.
  • the two contacting lines 55 used to contact a fuel injection valve 11 are, for example, as shown in FIG. 3, electrically connected to an electrical plug element 57.
  • plug elements 57 can in turn be connected to the connecting plugs 19 of the fuel injection valves 11, so that the electrically actuable fuel injection valves can be contacted easily and reliably in this way.
  • the carrier part 21 and the contact strip housing 3 are connected to one another by means of a snap-in connection.
  • the contact strip housing 3 has on its legs 27, 29 between the first housing openings 31 and the cover part 23, second housing openings 61.
  • the carrier part 21 has on its sides facing the legs 27, 29 a plurality of locking lugs 63 running parallel to the longitudinal axis 23, which protrude into the housing openings 61 of the legs 27, 29 of the contact strip housing 1, so that a firm and reliable locking connection between the carrier part 21 and the contact strip housing 3 is formed.
  • the contact strip housing 3 is formed by at least partially plastic encapsulation of the carrier part 21.
  • the carrier part 21 with the connecting lines 45 in the region of its upper end face 35 is surrounded by the plastic encapsulation forming the contact strip housing 3 together with the legs 27, 29.
  • the contact strip 1 according to the invention can be produced particularly simply and inexpensively.
  • a particularly secure and reliable hold of the connecting lines 45 in the groove-shaped conductor channels 39 of the carrier part 21 is ensured.
  • FIG. 6 shows a third exemplary embodiment of a contact strip 1 according to the invention, in which a separate carrier part, as in the previous exemplary embodiments, is missing.
  • webs 37 are formed on the lower end face 40 of the cover part 25 of the contact strip housing 3, facing the fuel distributor 5, between the legs 27, 29, which run parallel to the longitudinal axis 23 of the contact strip 1 and together with the cover part 25 take over the function of the previous support part 21 .
  • Groove-shaped conductor channels 39 are formed between each two adjacent webs 37 and are open in the direction of the fuel distributor 5.
  • An electrical connection line 45 is arranged in the conductor channels 39, for example, which are held in the groove-shaped conductor channels 39, for example, by thermal deformation of the webs 37 of the contact strip housing 3 consisting of a plastic.
  • the previous separate Carrier part 21 is thus integrated in the contact strip housing 3, which has an approximately U-shaped cross section.
  • the contact lines 55 with the plug elements 57 correspond to the exemplary embodiments described so far in this exemplary embodiment.
  • Such a contact strip 1 is particularly simple and inexpensive to manufacture.
  • the contacting strip 1 makes it easy and safe to contact a plurality of electrically actuable fuel injection valves, which can be of any design.
  • the contact strip 1 can be produced in a simple and inexpensive manner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP92905557A 1991-03-23 1992-02-20 Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch betätigbarer brennstoffeinspritzventile Expired - Lifetime EP0530337B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4109653A DE4109653A1 (de) 1991-03-23 1991-03-23 Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch betaetigbarer brennstoffeinspritzventile
DE4109653 1991-03-23
PCT/DE1992/000120 WO1992016736A1 (de) 1991-03-23 1992-02-20 Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch betätigbarer brennstoffeinspritzventile

Publications (2)

Publication Number Publication Date
EP0530337A1 EP0530337A1 (de) 1993-03-10
EP0530337B1 true EP0530337B1 (de) 1995-09-13

Family

ID=6428088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92905557A Expired - Lifetime EP0530337B1 (de) 1991-03-23 1992-02-20 Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch betätigbarer brennstoffeinspritzventile

Country Status (6)

Country Link
US (1) US5347969A (ko)
EP (1) EP0530337B1 (ko)
JP (1) JPH05507782A (ko)
KR (1) KR100244358B1 (ko)
DE (2) DE4109653A1 (ko)
WO (1) WO1992016736A1 (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998013600A1 (de) 1996-09-26 1998-04-02 Robert Bosch Gmbh Brennstoffverteiler
FR2767873A1 (fr) * 1997-09-02 1999-03-05 Peugeot Dispositif de connexion des injecteurs d'un moteur a combustion interne
US6012418A (en) * 1996-11-18 2000-01-11 Robert Bosch Gmbh Distributor device for fuel injection systems

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DE4325980C2 (de) * 1993-08-03 2003-06-26 Bosch Gmbh Robert Vorrichtung zur gemeinsamen elektrischen Kontaktierung mehrerer elektrisch erregbarer Aggregate von Brennkraftmaschinen
JP2853541B2 (ja) * 1993-11-17 1999-02-03 住友電装株式会社 金属部材の樹脂インサート成形方法と、内燃機関のインジェクタ用コネクタブロック
US5568798A (en) * 1995-06-08 1996-10-29 Siemens Automotive Corporation Plastic fuel rail having integrated electrical wiring
US5718206A (en) * 1995-10-12 1998-02-17 Nippondenso Co., Ltd. Fuel supply system having fuel rail
DE19734970A1 (de) * 1997-08-13 1999-02-18 Volkswagen Ag Bauteil für ein Kraftfahrzeug, vorzugsweise ein Zylinderkopf einer Brennkraftmaschine
DE19734971A1 (de) * 1997-08-13 1999-02-18 Volkswagen Ag Verkabelungsmodul
JPH11178174A (ja) 1997-12-10 1999-07-02 Yazaki Corp 電線保持具
US5937412A (en) * 1997-12-29 1999-08-10 Alcatel Usa Sourcing, L.P. Method and system for packaging service logic programs in an advanced intelligent network
US6186106B1 (en) 1997-12-29 2001-02-13 Visteon Global Technologies, Inc. Apparatus for routing electrical signals in an engine
US6053148A (en) * 1998-02-21 2000-04-25 Ford Motor Company Intake manifold for an internal combustion engine
GB9914790D0 (en) * 1999-06-25 1999-08-25 Lucas Ind Plc Fuel supply system
DE10103825A1 (de) * 2001-01-29 2002-08-08 Bosch Gmbh Robert Einspritzventil mit aufgesetzter Kraftstoffversorgung
US6769407B2 (en) 2002-07-31 2004-08-03 Caterpillar Inc Fuel injector having multiple electrical actuators and a method for installing the fuel injector in an engine
US6843217B2 (en) * 2002-09-04 2005-01-18 Federal-Mogul World Wide, Inc. Integrated electrical connectors for fuel injectors
JP2006161764A (ja) * 2004-12-10 2006-06-22 Keihin Corp 燃料分配管におけるワイヤハーネス取付け構造
AT503044B1 (de) * 2006-03-03 2007-07-15 Pollmann Austria Ohg Fixierelement für elektrische leiter, leiterstruktur-bauteil und verfahren zu dessen herstellung
KR200458875Y1 (ko) * 2009-04-10 2012-03-15 이태옥 한복 치마
US9212642B2 (en) * 2012-12-06 2015-12-15 Msd Llc Fuel rail-cooled engine control system
DE102017204692A1 (de) * 2017-03-21 2018-09-27 Robert Bosch Gmbh Kraftstoffinjektor
US11433830B2 (en) * 2020-10-01 2022-09-06 Deere & Company Wire harness tray assembly

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DE4030422A1 (de) * 1990-09-26 1992-04-02 Bosch Gmbh Robert Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch erregbarer aggregate von brennkraftmaschinen
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DE4118512A1 (de) * 1991-06-06 1992-12-10 Bosch Gmbh Robert Elektrisch betaetigbares brennstoffeinspritzventil und verfahren zu dessen elektrischer kontaktierung
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998013600A1 (de) 1996-09-26 1998-04-02 Robert Bosch Gmbh Brennstoffverteiler
US6062200A (en) * 1996-09-26 2000-05-16 Robert Bosch Gmbh Motor fuel dispenser
US6012418A (en) * 1996-11-18 2000-01-11 Robert Bosch Gmbh Distributor device for fuel injection systems
FR2767873A1 (fr) * 1997-09-02 1999-03-05 Peugeot Dispositif de connexion des injecteurs d'un moteur a combustion interne
EP0900933A1 (fr) * 1997-09-02 1999-03-10 Automobiles Peugeot Dispositif de connexion des injecteurs d'un moteur à combustion interne

Also Published As

Publication number Publication date
JPH05507782A (ja) 1993-11-04
EP0530337A1 (de) 1993-03-10
DE59203663D1 (de) 1995-10-19
KR100244358B1 (ko) 2000-03-02
WO1992016736A1 (de) 1992-10-01
US5347969A (en) 1994-09-20
DE4109653A1 (de) 1992-09-24

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