EP0238882A2 - Dispositif de commande pour une pompe d'injection de carburant - Google Patents
Dispositif de commande pour une pompe d'injection de carburant Download PDFInfo
- 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
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
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- 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
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- 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
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- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863609995 DE3609995A1 (de) | 1986-03-25 | 1986-03-25 | Stellvorrichtung fuer eine kraftstoffeinspritzpumpe |
DE3609995 | 1986-03-25 |
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)
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)
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)
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 |
-
1986
- 1986-03-25 DE DE19863609995 patent/DE3609995A1/de not_active Withdrawn
-
1987
- 1987-01-21 US US07/005,797 patent/US4732546A/en not_active Expired - Lifetime
- 1987-02-26 EP EP87102774A patent/EP0238882A3/fr not_active Ceased
- 1987-03-19 JP JP62062788A patent/JPS62225758A/ja active Pending
Patent Citations (5)
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 |
US4732546A (en) | 1988-03-22 |
JPS62225758A (ja) | 1987-10-03 |
DE3609995A1 (de) | 1987-10-01 |
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Legal Events
Date | Code | Title | Description |
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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 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT |
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PUAL | Search report despatched |
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AK | Designated contracting states |
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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 |