EP0386444B1 - Fuel distribution pipe for injection systems of internal combustion engines - Google Patents

Fuel distribution pipe for injection systems of internal combustion engines Download PDF

Info

Publication number
EP0386444B1
EP0386444B1 EP90101709A EP90101709A EP0386444B1 EP 0386444 B1 EP0386444 B1 EP 0386444B1 EP 90101709 A EP90101709 A EP 90101709A EP 90101709 A EP90101709 A EP 90101709A EP 0386444 B1 EP0386444 B1 EP 0386444B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection valve
bayonet
recesses
catch
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
EP90101709A
Other languages
German (de)
French (fr)
Other versions
EP0386444A1 (en
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/en
Application granted granted Critical
Publication of EP0386444B1 publication Critical patent/EP0386444B1/en
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
    • 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, such as e.g. shown in EP-A-O 261855.
  • 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 engages over the part of the fuel injection valve protruding from the receiving bore and hooks 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 are in their predetermined position even before the contact hood is in place 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)

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Kraftstoffverteiler für Kraftstoffeinspritzanlagen von Brennkraftmaschinen der im Oberbegriff des Anspruchs 1 definierten Gattung, wie z.B. in der EP-A-O 261855 gezeigt.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, such as e.g. shown in EP-A-O 261855.

Bei einem bekannten Kraftstoffverteiler dieser Art (DE 37 30 571 Al) werden die in Aufnahmebohrungen axial eingesetzten elektromagnetisch betätigten Kraftstoffeinspritzventile mittels einer Kontaktleiste an dem Ventilträger fixiert, die haubenförmig den aus der Aufnahmebohrung vorstehenden Teil der Kraftstoffeinspritzventile übergreift und mit Rastnasen in entsprechenden Rastausnehmungen im Ventilträger einhakt. Durch diese gleichzeitig der elektrischen Kontaktierung der Kraftstoffeinspritzventile dienende Kontaktleiste sind die Kraftstoffeinspritzventile in axialer und radialer Richtung lagefixiert.In a known fuel distributor of this type (DE 37 30 571 A1), 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 engages over the part of the fuel injection valve protruding from the receiving bore and hooks into place in corresponding locking recesses in the valve carrier . By means of 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.

Toleranzprobleme zwischen elektrischen Steckstiften am Kraftstoffeinspritzventil und elektrischen Steckstiftaufnahmen in der Kontaktleiste können jedoch gewisse Verdrehungen der Kraftstoffeinspritzventile bei der Montage bewirken, wodurch die Kraftstoffeinspritzventile ihre vorgegebene Ausrichtung in der Aufnahmebohrung nicht einhalten und somit ihre Strahlgeometrie unerwünscht verändert wird.Tolerance problems between electrical pins on the fuel injection valve and electrical pin receptacles in the contact strip can, however, cause certain rotations of the fuel injection valves during assembly, as a result of which the fuel injection valves do not adhere to their predetermined orientation in the receiving bore and thus their jet geometry is undesirably changed.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Kraftstoffverteiler mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, daß die Kraftstoffeinspritzventile bereits vor Aufsetzen der Kontakthaube ihre vorbestimmte Lage einnehmen und sowohl in Axial- als auch in Drehrichtung zuverlässig fixiert sind. Damit ist z.B. bei Kundendienstarbeiten ein Überprüfen der Kraftstoffeinspritzventile im eingebauten Zustand möglich, ohne dabei den Hydraulikkreis zu unterbrechen.The fuel distributor according to the invention with the characterizing features of claim 1 has the advantage that the fuel injection valves are in their predetermined position even before the contact hood is in place 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.

Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Kraftstoffverteilers möglich.Advantageous further developments and improvements of the fuel distributor specified in claim 1 are possible through the measures listed in the further claims.

Wird gemäß einer bevorzugten Ausführungsform der Erfindung der üblicherweise bei einem Bajonettverschluß vorhandene Endanschlag für die Drehbewegung des Bajonettriegels so gelegt, daß das in der Aufnahmebohrung durch den Bajonettverschluß verriegelte Kraftstoffeinspritzventil eine bestimmte Drehstellung einnimmt, so wird die im Einbauzustand gewünschte Strahlgeometrie, die allein von der Drehstellung des Kraftstoffeinspritzventils in der Aufnahmebohrung abhängig ist, bei jedem Montagevorgang zuverlässig realisiert.If, according to a preferred embodiment of the invention, 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.

Gemäß einer weiteren Ausführungsform der Erfindung wird die Kontakthaube als Verriegelungsmittel eingesetzt. Die formschlüssig in die Ausnehmungen im Bajonettschloß eingreifenden Sperrnasen an der Haube verhindern eine Drehung des Bajonettriegels im Bajonettschloß, so daß das Kraftstoffeinspritzventil sowohl in seiner axialen als auch in seiner Verdrehlage zuverlässig fixiert ist. Der Kraftstoffverteiler ist damit auch für rauhe Betriebsbedingungen geeignet.According to a further embodiment of the invention, 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.

Zeichnungdrawing

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels in der nachfolgenden Beschreibung näher erläutert. Es zeigen:

  • Fig. 1 ausschnittweise einen Schnitt längs der Linie I-I in Fig. 3 eines Kraftstoffverteilers,
  • Fig. 2 einen Schnitt längs der Linie II-II in Fig. 3,
  • Fig. 3 einen Querschnitt längs der Schnittlinie III-III in Fig. 1.
The invention is explained in more detail in the following description with reference to an embodiment shown in the drawing. Show it:
  • 1 a section along the line II in Fig. 3 of a fuel rail,
  • 2 shows a section along the line II-II in FIG. 3,
  • 3 shows a cross section along the section line III-III in FIG. 1.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Der in Fig. 1 nur ausschnittweise dargestellte Kraftstoffverteiler für Kraftstoffeinspritzlagen von Brennkraftmaschinen dient der Halterung, Kraftstoffversorgung und elektrischen Kontaktierung von elektromagnetisch betätigbaren Kraftstoffeinspritzventilen. Er weist einen Ventilträger 11 mit mehreren abgestuften Aufnahmebohrungen 12 auf, die beiderseits offen sind und in die jeweils ein Kraftstoffeinspritzventil 10 eingesetzt ist. Das Kraftstoffeinspritzventil 10 ragt mit seinem Einspritzmundstück 13 durch eine Mündungsöffnung 14 der Aufnahmebohrung 12 hindurch und steht mit einer Kraftstoffversorgungsleitung 15 und einer nicht zu sehenden Rückströmleitung, die im Ventilträger 11 geführt sind, in Verbindung. Der über die Kraftstoffversorgungsleitung 15 zugeführte Kraftstoff gelangt über Öffnungen ins Innere des Kraftstoffeinspritzventils 10 und kann von dort zum Teil über das Einspritzmündstück 13 abgespritzt werden und zum anderen Teil nach oben strömen und über weitere Öffnungen in den Bereich der Aufnahmebohrungen 12 austreten, der von der Rückströmleitung berührt wird. In einer vereinfachten Ausführungsform kann die getrennte Rückströmleitung entfallen. Die Abdichtung des Kraftstoffeinspritzventils 10 in der Aufnahmebohrung 12 erfolgt über zwei dicke O-Ringe 31,32.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. In a simplified embodiment, 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.

Zur Befestigung des Kraftstoffeinspritzventils 10 am Ventilträger 11 ist an diesem ein die Aufnahmebohrung 12 umgebendes Bajonettschloß 16 und am Ventilgehäuse des Kraftstoffeinspritzventils 10 ein mit dem Bajonettschloß 16 einen Bajonettverschluß 30 bildender Bajonetriegel 17 vorgesehen, der aus zwei am Ventilgehäuse diametral gegenüberliegenden Riegellappen 171,172 besteht. Das Bajonettschloß 16 trägt in bekannter Weise zwei Aussparungen 18,19 zum axialen Einführen der Riegellappen 171,172 in das Bajonettschloß 16 und zwei sich daran anschließende Übergreifungsabschnitte 20,21, die nach Drehung des mit seinen Riegellappen 171,172 in die Aussparungen 18,19 eingesetzten Bajonettriegels 17 die Riegellappen 171,172 übergreifen. Am Ende der Übergreifungsabschnitte 20,21 befindet sich jeweils ein Anschlag 22 bzw. 23 für die Riegellappen 171 bzw. 172. Die Anschläge 22,23 legen die Drehstellung des Kraftstoffeinspritzventils 10 in der Aufnahmebohrung 12 und damit die Einspritzgeometrie des Kraftstoffeinspritzventils 10 fest und nehmen eine entsprechende Lage ein. Die in Umfangsrichtung gemessene Breite der Riegellappen 171,172 ist im Hinblick auf die Lage der Anschläge 22,23 so bemessen, daß beim Anliegen der Riegellappen 171,172 an den Anschlägen 22,23 die Riegellappen 171,172 vollständig von den Übergreifungsabschnitten 20,21 überdeckt werden und zu den Aussparungen 18,19 hin bündig mit den Übergreifungsabschnitten 20,21 sind.To fasten the fuel injection valve 10 to the valve carrier 11, 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. At the end of the overlapping sections 20, 21 there is 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.

Zur Kontaktierung des elektromagnetisch betätigbaren Kraftstoffeinspritzventils 10 dient eine Steckerhaube 24, die den aus der Aufnahmebohrung 12 vorstehenden Teil des Kraftstoffeinspritzventils 10 überdeckt und die Aufnahmebohrung 12 abschließt. Dabei kann auf jedes Kraftstoffeinspritzventil 10 eine Steckerhaube 24 aufgesetzt werden. Die Steckerhauben 24 können aber auch - wie dies in der DE 37 30 571 Al beschrieben ist - zu einer gemeinsamen Kontaktleiste zusammengefaßt sein.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.

Die Steckerhaube 24 enthält Kontaktelemente 25, die sich beim Aufsetzen der Steckerhaube 24 auf das herausragende Ende des Kraftstoffeinspritzventils 10 auf am Kraftstoffeinspritzventil 10 vorstehenden Kontaktstiften 26 aufsetzen. Die Kontaktstifte 26 sind mit der Erregerwicklung des Betätigungsmagneten des Kraftstoffeinspritzventils 10 elektrisch leitend verbunden. Die Kontaktelemente 25 sind elektrisch leitend mit an der Steckerhaube 24 vorstehenden Anschlußsteckern verbunden. Auf ihrer auf den Ventilträger 11 aufsetzbaren Stirnfläche 27 trägt die Steckerhaube 24 zwei axial vorspringende Sperrzapfen 28,29, die beim Aufsetzen der Steckerhaube 24 auf das Kraftstoffeinspritzventil 10 formschlüssig in die Aussparungen 18,19 im Bajonettschloß 16 eingreifen. Diese Sperrzapfen 28,29 verhindern ein Rückdrehen des Bajonettriegels 17 und fixieren damit das in die Aufnahmebohrung 12 eingesetzte Kraftstoffeinspritzventil 10 sowohl in axialer Richtung als auch in Drehrichtung.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. 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.

Claims (5)

1. Fuel distributor for fuel injection systems of internal combustion engines with at least one fuel injection valve (10) and with a valve support (11) which has at least one axially open stepped location hole (12), connected to a fuel supply line, for the fuel injection valve (10) and a front flange which surrounds the location hole (12) and against which the fuel injection valve is supported axially by means of a collar, characterised in that the front flange of the valve support (11) and the collar of the fuel injection valve (10) are designed as mutually corresponding parts (16, 17) of a bayonet fixing (30).
2. Distributor according to Claim 1, characterised in that the part of the fixing which is formed on the collar of the fuel injection valve (10) is the bayonet catch (17) and the part of the fixing which is formed on the front flange of the valve support (11) is the bayonet lock (16).
3. Distributor according to Claim 2, with a cap (24) which covers the location hole (12), of which there is at least one, and the fuel injection valve (10) inserted into the latter and contains contact elements for contacting the electrically actuable fuel injection valve (10), characterised in that, at its front face (27) which can be placed on the valve support (11), the cap (24) bears axially projecting locking lugs (28, 29) which engage positively in recesses (18, 19) in the bayonet lock (16), which serve for the axial introduction and withdrawal of the bayonet catch (17) into or from the bayonet lock (16).
4. Distributor according to Claim 2 or 3, characterised in that at least one stop (22, 23) for the bayonet catch (17) is provided in the bayonet lock (16), which stop is arranged in such a way that, with the bayonet catch (17) resting against it, the fuel injection valve (10) occupies a predetermined position which determines the direction of injection.
5. Distributor according to Claim 4, characterised in that the bayonet lock (16) has at least two recesses (18, 19) and the bayonet catch (17) has at least two catch tabs (171, 172), which correspond to the recesses (18, 19) and the width of which in the circumferential direction is matched to the position of the stop (22, 23) in the bayonet lock (16) in such a way that, when the bayonet catch (17) is resting against the stop (22, 23), the catch tabs (171, 172) expose the recesses (18, 19) and their radial boundary edges which face the recesses (18, 19) are flush with the respectively adjoining boundary edge of the recesses (18, 19).
EP90101709A 1989-03-10 1990-01-29 Fuel distribution pipe for injection systems of internal combustion engines Expired - Lifetime EP0386444B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907764 1989-03-10
DE3907764A DE3907764A1 (en) 1989-03-10 1989-03-10 FUEL DISTRIBUTOR FOR FUEL INJECTION SYSTEMS OF INTERNAL COMBUSTION ENGINES

Publications (2)

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

Family

ID=6376002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101709A Expired - Lifetime EP0386444B1 (en) 1989-03-10 1990-01-29 Fuel distribution pipe for injection systems of internal combustion engines

Country Status (7)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055105A1 (en) 2008-12-22 2010-07-01 Robert Bosch Gmbh Fuel injection device

Families Citing this family (40)

* 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 (en) * 1990-01-27 1991-08-01 Bosch Gmbh Robert FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
DE4013875A1 (en) * 1990-04-30 1991-10-31 Bosch Gmbh Robert CONNECTING A SOLENOID VALVE TO A HOUSING BLOCK
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
US5111794A (en) * 1990-06-29 1992-05-12 Siemens Automotive L.P. Fuel rail for bottom and side fed injectors
US5211149A (en) * 1990-06-29 1993-05-18 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
US5129834A (en) * 1991-03-04 1992-07-14 Siemens Automotive L.P. Multiple function electrical connector for connecting to a fuel-rail-mounted fuel injector
DE4206370A1 (en) * 1991-05-17 1992-11-19 Mann & Hummel Filter CONTROL STRIP IN COMPACT PLASTIC DESIGN
DE4118512A1 (en) * 1991-06-06 1992-12-10 Bosch Gmbh Robert ELECTRICALLY OPERABLE FUEL INJECTION VALVE AND METHOD FOR THEIR ELECTRICAL CONTACT
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 (en) * 1991-08-24 1993-02-25 Bosch Gmbh Robert FUEL DISTRIBUTOR
DE4131537A1 (en) * 1991-09-21 1993-04-01 Bosch Gmbh Robert FUEL DISTRIBUTOR
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
JP2591812Y2 (en) * 1992-04-16 1999-03-10 住友電装株式会社 Non-rotating connector
DE4240130C2 (en) * 1992-11-28 1995-06-08 Daimler Benz Ag Fuel distributor for fuel injection systems of internal combustion engines
DE4329774A1 (en) * 1993-09-03 1995-03-09 Bosch Gmbh Robert Device for the fixing and securing of a valve
JP3301354B2 (en) * 1996-12-24 2002-07-15 トヨタ自動車株式会社 Fuel injection device
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
WO2001018384A1 (en) * 1999-09-10 2001-03-15 International Engine Intellectual Property Company, Llc. Actuating fluid delivery system for a fuel injector
US6422205B2 (en) 2000-01-27 2002-07-23 Siemens Automotive Corporation Twist off pressure regulator connector assembly
DE10038301A1 (en) * 2000-08-05 2002-02-14 Bosch Gmbh Robert Fuel injector
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 (en) 2002-08-30 2004-03-18 Robert Bosch Gmbh Plug connection for media-carrying lines
DE10360335A1 (en) 2003-12-20 2005-07-14 Robert Bosch Gmbh Connector for power systems with variable hose guide
DE10360334A1 (en) * 2003-12-20 2005-07-14 Robert Bosch Gmbh Fuel return system with throttle
EP1859160B1 (en) * 2005-03-03 2010-02-10 Robert Bosch GmbH Fuel injection device
DE602006005796D1 (en) * 2006-06-01 2009-04-30 Continental Automotive Gmbh Connector and composite arrangement
DE102006061952B4 (en) 2006-12-29 2021-03-25 Robert Bosch Gmbh Fuel injector with a connector
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 (en) 2009-08-12 2011-02-17 Robert Bosch Gmbh connector
DE102009046618B4 (en) * 2009-11-11 2023-09-21 Zf Friedrichshafen Ag Device for fastening and contacting actuators
JP5584637B2 (en) * 2011-02-18 2014-09-03 株式会社水道技術開発機構 Gate valve
DE102011087687B4 (en) * 2011-12-05 2021-04-15 Schaeffler Technologies AG & Co. KG Fastening device for a component on a housing block by means of a bayonet
DE102013111456B4 (en) 2013-10-17 2018-09-13 Otto Egelhof Gmbh & Co. Kg shut-off valve
DE102015222190B4 (en) * 2015-11-11 2019-03-28 Itt Manufacturing Enterprises Llc Connector and motor or valve cover member comprising a connector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261855A1 (en) * 1986-09-17 1988-03-30 Ford Motor Company Limited Fuel injection system component

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010783B (en) * 1953-05-05 1957-06-19 Daimler Benz Ag Device for fastening pump or nozzle assemblies to internal combustion engines
DE933002C (en) * 1953-05-08 1955-12-29 Daimler Benz Ag Device for securing the rotation of injection nozzles in internal combustion engines
DE2242824C3 (en) * 1972-08-31 1975-05-15 Dr.-Ing.H.C. F. Porsche Ag, 7000 Stuttgart Fuel injector mounting
US4475516A (en) * 1983-05-02 1984-10-09 General Motors Corporation Fuel rail assembly and clip
JPS6131174A (en) * 1984-07-24 1986-02-13 菊地　眞 Warming apparatus for hyperthermia
US4857003A (en) * 1987-02-06 1989-08-15 Robert Bosch Gmbh Apparatus for electrical connection of electromagnetically actuatable fuel injection valves
DE3730571C2 (en) * 1987-09-11 1998-07-02 Bosch Gmbh Robert Device for mounting, fuel supply and electrical contacting of electromagnetically actuated fuel injection valves
DE8713284U1 (en) * 1987-10-02 1987-12-23 Audi AG, 8070 Ingolstadt Device for connecting an injection nozzle to a connection piece in a fuel injection system for internal combustion engines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261855A1 (en) * 1986-09-17 1988-03-30 Ford Motor Company Limited Fuel injection system component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055105A1 (en) 2008-12-22 2010-07-01 Robert Bosch Gmbh Fuel injection device

Also Published As

Publication number Publication date
DE3907764A1 (en) 1990-09-13
JP2962756B2 (en) 1999-10-12
JPH02271068A (en) 1990-11-06
US5016594A (en) 1991-05-21
KR900014734A (en) 1990-10-24
BR9001128A (en) 1991-03-05
AU614458B2 (en) 1991-08-29
DE59000084D1 (en) 1992-05-21
EP0386444A1 (en) 1990-09-12
KR970009537B1 (en) 1997-06-14
AU4895790A (en) 1990-09-13

Similar Documents

Publication Publication Date Title
EP0386444B1 (en) Fuel distribution pipe for injection systems of internal combustion engines
EP0517004B1 (en) Electrically activated fuel injection valve and method of electrical contact
DE10037824B4 (en) Device for preventing the insertion of a fuel nozzle
EP0426780B1 (en) Fuel distributor for fuel injection systems in internal combustion engines
EP0862689B1 (en) Motor fuel dispenser
DE19624287C2 (en) Ignitor for an internal combustion engine
DE4131537A1 (en) FUEL DISTRIBUTOR
EP0554419B1 (en) Fuel distributor
DE2936853A1 (en) ELECTROMAGNETICALLY ACTUABLE VALVE
DE3010613A1 (en) FUEL INJECTION SYSTEM
DE3730571A1 (en) DEVICE FOR HOLDING, FUEL SUPPLY AND ELECTRICAL CONTACTING OF ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVES
EP0465613A1 (en) Fuel-injection system for internal-combustion engines.
DE9204611U1 (en) Cover for a housing thermostat
EP1448886B1 (en) Securing sleeve for a fuel injection system
DE602004000933T2 (en) Fuel injection device for an internal combustion engine, in particular of a motor vehicle
DE102004010876B4 (en) Cylinder injection type fuel injection valve device
EP0367777B1 (en) Injection valve
DE3907765A1 (en) FUEL DISTRIBUTOR FOR FUEL INJECTION SYSTEMS OF INTERNAL COMBUSTION ENGINES
DE3819344A1 (en) FUEL SPRAYING AND DOSING VALVE FOR A FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE
EP1030968A1 (en) Fuel injector
DE2748374A1 (en) FUEL INJECTOR
EP0068339A1 (en) Fuel injection nozzle for internal-combustion engines
EP0974007B1 (en) Internal combustion engine with inlet and outlet valves
EP3168454B1 (en) Valve for metering a fluid and assembly including such a valve
DE60103240T2 (en) System for assembling an injection valve of an internal combustion engine

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: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19901217

17Q First examination report despatched

Effective date: 19910808

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROBERT BOSCH GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 59000084

Country of ref document: DE

Date of ref document: 19920521

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

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

Ref country code: GB

Payment date: 20010111

Year of fee payment: 12

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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: 20020129

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

Ref country code: DE

Payment date: 20020226

Year of fee payment: 13

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

Effective date: 20020129

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

Ref country code: FR

Payment date: 20030117

Year of fee payment: 14

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: 20030801

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

Ref country code: FR

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

Effective date: 20040930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050129