EP0238882A2 - Dispositif de commande pour une pompe d'injection de carburant - Google Patents

Dispositif de commande pour une pompe d'injection de carburant Download PDF

Info

Publication number
EP0238882A2
EP0238882A2 EP87102774A EP87102774A EP0238882A2 EP 0238882 A2 EP0238882 A2 EP 0238882A2 EP 87102774 A EP87102774 A EP 87102774A EP 87102774 A EP87102774 A EP 87102774A EP 0238882 A2 EP0238882 A2 EP 0238882A2
Authority
EP
European Patent Office
Prior art keywords
cover
carrier
adjusting device
free end
plug connection
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.)
Ceased
Application number
EP87102774A
Other languages
German (de)
English (en)
Other versions
EP0238882A3 (fr
Inventor
Wolfgang Fehlmann
Dieter Dipl.-Ing. Junger
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 EP0238882A2 publication Critical patent/EP0238882A2/fr
Publication of EP0238882A3 publication Critical patent/EP0238882A3/fr
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
    • F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
    • F02M41/123—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor characterised by means for varying fuel delivery or injection timing
    • F02M41/125—Variably-timed valves controlling fuel passages
    • F02M41/126—Variably-timed valves controlling fuel passages valves being mechanically or electrically adjustable sleeves slidably mounted on rotary piston
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/48—Assembling; Disassembling; Replacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator
    • 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
    • F02D2400/18—Packaging of the electronic circuit in a casing
    • 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
    • F02D2400/22—Connectors or cables specially adapted for engine management applications
    • 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
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/406—Electrically controlling a diesel injection pump
    • F02D41/408—Electrically controlling a diesel injection pump of the distributing type

Definitions

  • the invention relates to an actuator for a fuel injection pump according to the preamble of the main claim.
  • DE-OS 30 04 035 and DE-OS 31 48 596 electrical actuators of this type in which the connector for the control current line is attached to the lid and resilient contact elements are provided on the carrier, which with the connector leading leaders are contacted. With these devices, contacting during assembly of the housing is difficult and time-consuming. Furthermore, the sealing of the fuel-containing housing in the region of the plug connection is problematic.
  • the actuator with the characterizing features of the main claim has the advantage that a subsequent contact of the conductor between the connector on the cover and the carrier in the lower part of the housing there is also no insulation of the bridges and the contact points. Furthermore, the housing is sealed dirt-tight even when the mating connector is removed. In addition, the fixed connection of the plug connection to the carrier results in less assembly effort with a secure conductor connection.
  • FIG. 1 shows an adjusting device on a fuel injection pump in longitudinal section in different planes
  • FIG. 2 shows the adjusting device according to FIG. 1 in a top view with the cover removed.
  • FIG. 1 shows part of a fuel injection pump 1 of the distributor type, to the pump housing 2 of which an adjusting device 3 for quantity adjustment is attached.
  • the pump housing 2 comprises a suction chamber 4, in which a cam disk 5, which is driven by means not shown in more detail, sets a pump piston 6 in a reciprocating and rotating movement, in order to thereby effect fuel delivery to injection valves of an internal combustion engine.
  • the pump piston 6 has a control bore 7, which can be covered by a ring slide 8, so that there is relative movement of the ring slide 8 to the pump piston 6 results in a known quantity control of the injection pump.
  • the ring slide 8 is adjustable as a function of the rotary movement of a shaft 9 of a rotary magnet signaling unit 10 of the actuating device 3 via a driver crank 11, as is also known per se.
  • the rotary magnetic interlocking 10 is seated in a housing consisting of a lower part 15 and a cover 16, the lower part 15 of which is tightly attached to the pump housing 2, its shaft 9 and a bearing eye 17 guiding it projecting from the lower part 15 through an opening 18 in the pump housing 2 into the suction chamber 4 .
  • a housing consisting of a lower part 15 and a cover 16, the lower part 15 of which is tightly attached to the pump housing 2, its shaft 9 and a bearing eye 17 guiding it projecting from the lower part 15 through an opening 18 in the pump housing 2 into the suction chamber 4 .
  • Through an opening 19 in the lower part 15 and the opening 18, the interior of the housing of the actuating device 3 is connected to the suction chamber 4, so that it is also filled with fuel and the same pressure as in the suction chamber 4 prevails in it.
  • the cover 16 is sealed by a sealing ring 21 on the upper opening edge of the lower part 15 and is fastened to the lower part 15 with four screws 22.
  • the rotary magnet signal box 10 is screwed into the lower part 15 with several, for example four stud bolts 24, which also carry a carrier plate 25 which extends above the rotary magnet signal box 10 in the transition area of the lower part 15 to the cover 16.
  • a potentiometer angle transmitter 26 and connecting terminals 27 are arranged on the carrier plate 25.
  • the resistance layer and the contact path of the potentiometer angle transmitter 26 and the connecting terminals 27 are connected to conductors 28 which extend embedded in the carrier plate 25 and of which only one is shown in FIG. 1.
  • the ends of the conductors 28, which are remote from the connecting terminals 27 and from the angle transmitter 26, end evenly distributed on a circle and one of them in the center of the circle. With you the lower end 31 of contact pins 30 is welded or riveted.
  • the contact pins 30 protrude upward from the top of the carrier plate 25. Its lower end 31 is anchored in the carrier plate 25, which is made thickened in this area. Like the ends of the conductors 28, the contact pins 30 are evenly distributed on a circle and one of them is arranged in the center thereof. The free ends 32 of the contact pins 30 are surrounded by a bush 34 with an annular cross section, which is designed as a one-piece extension on the carrier plate 25.
  • the carrier plate 25 with the socket 34 consists of an electrically insulating plastic, for example polyamide, and is manufactured by injection molding. The lower ends 31 of the contact pins 30 connected to the conductors 28 are surrounded by the material during the injection molding of the carrier plate 25 and are then held in the correct position by the latter.
  • the bushing 34 projecting upward from the carrier plate 25 passes through an opening 35 in the cover 16 with a close fit. Because of this tight fit, the bushing 34 determines the position of the cover 16 on the lower part 15.
  • an axial annular groove 36 is incorporated, in which a sealing ring 37 is inserted.
  • a mating connector 40 on a connecting line 41 originating from the control unit 38 is used to electrically connect the rotary magnetic interlocking system 10 to the control device 38 via the plug connection consisting of the contact pins 30 and the socket 34 on the carrier plate 25.
  • the mating connector 40 has an inner insulating body 39 with contact sleeves 42 , which are arranged in mirror image of the contact pins 30 of the plug connection, and a sleeve 43, the lower end of which has an annular cross section which corresponds to that of the annular groove 36 in the cover 16. Im up inserted state, the lower end of the sleeve 43 engages around the end of the socket projecting above the top of the cover 16, the end face of which encloses the sealing ring 37 in the annular groove 36.
  • the sleeve 43 has a collar 44, the underside of which rests on the upper side of the cover 16 and is held by a coupling ring 45 which is fastened to the cover 16 by screws 46.
  • the free end of the sleeve 43 penetrates into the annular groove 36 of the cover and comes into contact with the sealing ring 37.
  • the end face of the sleeve 43 presses the sealing ring 37, which is also radial deformed and under tension on the outer circumference of the bush 34 and on the inner circumference of the annular groove 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
EP87102774A 1986-03-25 1987-02-26 Dispositif de commande pour une pompe d'injection de carburant Ceased EP0238882A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3609995 1986-03-25
DE19863609995 DE3609995A1 (de) 1986-03-25 1986-03-25 Stellvorrichtung fuer eine kraftstoffeinspritzpumpe

Publications (2)

Publication Number Publication Date
EP0238882A2 true EP0238882A2 (fr) 1987-09-30
EP0238882A3 EP0238882A3 (fr) 1989-05-24

Family

ID=6297204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102774A Ceased EP0238882A3 (fr) 1986-03-25 1987-02-26 Dispositif de commande pour une pompe d'injection de carburant

Country Status (4)

Country Link
US (1) US4732546A (fr)
EP (1) EP0238882A3 (fr)
JP (1) JPS62225758A (fr)
DE (1) DE3609995A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703073A1 (de) * 1987-02-03 1988-08-11 Bosch Gmbh Robert Kraftstoffeinspritzpumpe
DE3739198C1 (de) * 1987-11-19 1989-05-03 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer Brennkraftmaschinen
DE3740195A1 (de) * 1987-11-27 1989-06-08 Webasto Ag Fahrzeugtechnik Elektrische verbindungseinrichtung fuer komponenten von heizgeraeten
US4959027A (en) * 1990-02-20 1990-09-25 Itt Corporation Fuel injector adaptor
DE19713869A1 (de) * 1997-04-04 1998-10-08 Bosch Gmbh Robert Kraftstoffeinspritzpumpe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938421A1 (de) * 1969-07-29 1971-02-11 Wilhelm Ruppert Verfahren zur Herstellung von Traegerkoerpern mit zwischen Isoliermaterial eingebetteten Bandleitern
DE1910112B2 (de) * 1969-02-28 1973-12-20 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung für die Fordermenge einer Einspritzpumpe für Brennkraftma schinen
DE3004035A1 (de) * 1980-02-05 1981-08-13 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung fuer eine kraftstoffeinspritzpumpe
EP0059462A2 (fr) * 1981-03-02 1982-09-08 Thaler, Hartmuth F., Ing. grad. Broche à connexion pressée
DE3216984A1 (de) * 1982-05-06 1983-11-10 Robert Bosch Gmbh, 7000 Stuttgart Elektrischer steckverbinder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711815A (en) * 1971-06-24 1973-01-16 Gen Connector Tight angle multi-contact electrical connector
US3736548A (en) * 1971-07-28 1973-05-29 R Double Electrical coupler
JPS5648104A (en) * 1979-09-28 1981-05-01 Hitachi Ltd Superconductive apparatus
JPS57135232A (en) * 1981-02-13 1982-08-20 Nissan Motor Co Ltd Electronic controlling device for fuel injection of internal combustion engine
DE3148596A1 (de) * 1981-12-09 1983-07-21 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum erzeugen eines kraftstoffmengensignales
JPS59110896A (ja) * 1982-12-15 1984-06-26 Ebara Corp 水中モ−タポンプ
DE3507525C1 (de) * 1985-03-04 1986-09-25 Schulte-Elektrotechnik GmbH & Co KG, 5880 Lüdenscheid Elektrischer Geraetestecker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910112B2 (de) * 1969-02-28 1973-12-20 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung für die Fordermenge einer Einspritzpumpe für Brennkraftma schinen
DE1938421A1 (de) * 1969-07-29 1971-02-11 Wilhelm Ruppert Verfahren zur Herstellung von Traegerkoerpern mit zwischen Isoliermaterial eingebetteten Bandleitern
DE3004035A1 (de) * 1980-02-05 1981-08-13 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung fuer eine kraftstoffeinspritzpumpe
EP0059462A2 (fr) * 1981-03-02 1982-09-08 Thaler, Hartmuth F., Ing. grad. Broche à connexion pressée
DE3216984A1 (de) * 1982-05-06 1983-11-10 Robert Bosch Gmbh, 7000 Stuttgart Elektrischer steckverbinder

Also Published As

Publication number Publication date
EP0238882A3 (fr) 1989-05-24
DE3609995A1 (de) 1987-10-01
US4732546A (en) 1988-03-22
JPS62225758A (ja) 1987-10-03

Similar Documents

Publication Publication Date Title
DE3736198C2 (fr)
DE4105349A1 (de) Elektromotor mit angesetzter pumpe
DE10038300A1 (de) Brennstoffeinspritzventil
EP0513597B1 (fr) Procédé de fabrication d'un bloc de connexion
DE3143848C2 (fr)
EP2132432B1 (fr) Tête magnétique pour électrovanne
DE10115322A1 (de) Kraftstoff-Einspritzvorrichtung für Brennkraftmaschinen, insbesondere Common-Rail-Injektor
DE10213585A1 (de) Kraftstoffzufuhrvorrichtung mit einem Herausrutschverhinderungselement
EP1797313B1 (fr) Soupape d'injection de carburant
EP0906632B1 (fr) Bobine magnetique
EP0238882A2 (fr) Dispositif de commande pour une pompe d'injection de carburant
EP1216904B1 (fr) Dispositif connecteur et solénoide
EP0068339B1 (fr) Buse d'injection de carburant pour moteurs à combustion interne
EP0446201B1 (fr) Injecteur pour moteurs a combustion interne
EP1030968A1 (fr) Injecteur de carburant
WO2007014887A1 (fr) Soupape d'injection de carburant
DE3705587C2 (de) Elektromagnetisch betätigtes Ventil, insbesondere Kraftstoffeinspritzventil
DE3408135A1 (de) Kupplungsteil zum druckdichten befestigen einer druckmittelleitung an einem druckmittelanschluss
EP3446011B1 (fr) Dispositif pneumatique à plusieurs soupapes ainsi que procédé de fabrication
DE102004063293B4 (de) Kraftstoffinjektor für eine Brennkraftmaschine
EP2914843B1 (fr) Ensemble électroaimant pour une électrovanne
DE102004047040A1 (de) Brennstoffeinspritzventil und Verfahren zur Montage eines Brennstoffeinspritzventils
EP1831538B1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
DE102004047041A1 (de) Brennstoffeinspritzventil
DE102017200975A1 (de) Verbindungs- und Isolationselement

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19891020

17Q First examination report despatched

Effective date: 19900206

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19900722

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JUNGER, DIETER, DIPL.-ING.

Inventor name: FEHLMANN, WOLFGANG