EP0154209A1 - Injection valve for injection into the intake pipe of combustion engines - Google Patents

Injection valve for injection into the intake pipe of combustion engines Download PDF

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Publication number
EP0154209A1
EP0154209A1 EP85101463A EP85101463A EP0154209A1 EP 0154209 A1 EP0154209 A1 EP 0154209A1 EP 85101463 A EP85101463 A EP 85101463A EP 85101463 A EP85101463 A EP 85101463A EP 0154209 A1 EP0154209 A1 EP 0154209A1
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EP
European Patent Office
Prior art keywords
mouthpiece
injection valve
ring
protective cap
injection
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Granted
Application number
EP85101463A
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German (de)
French (fr)
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EP0154209B1 (en
Inventor
Jurij Gartner
Wolfgang Dipl.-Ing. Kaindl
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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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
    • 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

Definitions

  • the invention relates to an injection valve of the type according to the preamble of the main claim.
  • the 0-ring arranged on the mouthpiece of the injection valve is pressed radially when inserted into the receiving bore in the intake manifold wall.
  • the receiving bore has a chamfer on the insertion side, by means of which the pressing of the 0-ring is initiated when it is inserted into the receiving bore.
  • this chamfer is generally relatively low in the area around the receiving bore in the insertion direction and is formed at a relatively large cone angle. At the transition from the receiving bore into the chamfer, this results in a relatively sharp edge, which can lead to damage to the O-ring in the case of a mouthpiece of the injection nozzle which is positioned eccentrically to the receiving bore.
  • each injection valve can be moved to a certain extent relative to the fuel rail, so that when the injection valves are installed at the same time, eccentric positions of some injection valves can be expected in relation to their receiving bores.
  • the invention has for its object to show a configuration for an injection valve of the type described above, by which damage to the sealing ring is avoided when the injection valve is inserted into the receiving bore of the suction line.
  • An injection valve 1 for a mixture-compressing internal combustion engine (not shown) carries an O-ring 3 on a mouthpiece 2.
  • the 0-ring 3 is arranged on the mouthpiece 2 between a shoulder 4 of the injection valve 1 and a protective cap 5 in the free end region of the mouthpiece 2.
  • the injection valve 1 is inserted with its mouthpiece 2 into a wall opening 7 in the intake manifold 6, the position of the injection valve 1 essentially being achieved by the pressed O-ring 3 between the wall opening 7 and the mouthpiece 2 becomes.
  • the wall opening or receiving bore 7 has a. Bevel 8 on the insertion side.
  • a centering device 9 on the protective cap 5 ensures that the injection valve 1 is centered in the receiving bore 7 at the beginning of the insertion process and is guided centrally during the further insertion until the 0-ring 3 rests on the chamfer 8.
  • the centering device 9 comprises on the protective cap 5 made of plastic tongues 10, which are elastically flexible transversely to the insertion direction arrow "A" of the injection valve 1 and have an outer contour lying in the outer surface of a hemisphere. Furthermore, the edge regions of the non-deformed tongues 10 lie on a diameter which is at least the outer diameter of the unpressed 0-ring 3 corresponds. This configuration of the centering device 9 avoids an eccentric position of the mouthpiece 2 of the injection valve 1 when it is inserted and thus prevents possible damage to the rubber-elastic 0-ring 3 on the machining edges 11 and 12.
  • a centering device 13 comprises webs 15 arranged on the outer circumference of a protective cap 14, which webs have an outer contour lying in the lateral surface of a cone. With increasing diameter, these webs 15 each change from a rectangular cross section to a crescent cross section.
  • the protective cap 14 made of elastic material, the free ends of the crescent-shaped cross sections form elastically flexible lips 16 in the circumferential direction.
  • the undeformed lips 16 on the webs 15 are inscribed with a diameter which corresponds to the outer diameter of the unpressed O-ring 3.
  • the webs 15 with their ramps 17 lying on the lateral surface of a relatively slender cone substantially facilitate the threading of the injection valve 1 into the receiving bore 7, which additionally improves the self-centering of the injection valve 1.
  • the lips 16 rest on the webs 15 due to the crescent-shaped cross section on the wall of the receiving bore 7.
  • the degree of flexibility of the lips 16 and thus their flexibility transverse to the direction of insertion arrow "A" can be determined.
  • With a coordinated crescent-shaped cross-section and the material of the webs 15 and the protective cap 14 secure centering can be achieved when the injection valve 1 is inserted into the receiving bore 7 with the least possible lateral offset. The smaller the lateral offset permitted by the centering device 13 through the lips 16, the lower the risk of one

Abstract

Ein Einspritzventil für Einzelsaugrohr-Einspritzung bei gemischverdichtenden Brennkraftmaschinen ist abspritzseitig durch eine Steckverbindung mittels eines Mundstückes in einer Wanddurchbrechung des Saugrohres unter Zwischenschaltung eines gummielastischen O-Ringes gehalten.An injection valve for single intake manifold injection in mixture-compressing internal combustion engines is held on the spray side by a plug connection by means of a mouthpiece in a wall opening in the intake manifold with the interposition of a rubber-elastic O-ring.

Um eine Beschädigung des O-Ringes beim Einstecken des Einspritzventiles an Bearbeitungskanten der Wanddurchbrechung zu vermeiden, ist im freien Endbereich des Mundstückes eine Zentriervorrichtung angeordnet. Vorzugsweise ist die Zentriervorrichtung an einer im freien Endbereich des Mundstückes anordbaren Schutzkappe ausgebildet.

Figure imgaf001
A centering device is arranged in the free end region of the mouthpiece in order to avoid damage to the O-ring when the injection valve is inserted into the machining edges of the wall opening. The centering device is preferably formed on a protective cap which can be arranged in the free end region of the mouthpiece.
Figure imgaf001

Description

Die Erfindung betrifft ein Einspritzventil gemäß der Bauart nach dem Oberbegriff des Hauptanspruches.The invention relates to an injection valve of the type according to the preamble of the main claim.

Bei dieser bekannten Bauart wird der auf dem Mundstück des Einspritzventiles angeordnete 0-Ring beim Einstecken in die Aufnahmebohrung in der Saugrohrwand radial gepreßt. Die Aufnahmebohrung weist einsteckseitig eine Fase auf, mittels der die Pressung des 0-Ringes beim Einführen in die Aufnahmebohrung eingeleitet wird. Diese Fase ist aus baulichen Gründen im Bereich um die Aufnahmebohrung in der Regel in Einsteckrichtung relativ niedrig und unter einem relativ großen Kegelwinkel gebildet. Dies ergibt am Übergang von der Aufnahmebohrung in die Fase eine relativ scharfe Kante, die bei einem zur Aufnahmebohrung außermittig angesetzten Mundstück der Einspritzdüse zu einer Beschädigung des 0-Ringes führen kann.In this known design, the 0-ring arranged on the mouthpiece of the injection valve is pressed radially when inserted into the receiving bore in the intake manifold wall. The receiving bore has a chamfer on the insertion side, by means of which the pressing of the 0-ring is initiated when it is inserted into the receiving bore. For structural reasons, this chamfer is generally relatively low in the area around the receiving bore in the insertion direction and is formed at a relatively large cone angle. At the transition from the receiving bore into the chamfer, this results in a relatively sharp edge, which can lead to damage to the O-ring in the case of a mouthpiece of the injection nozzle which is positioned eccentrically to the receiving bore.

Diese Gefahr ist besonders groß bei der gleichzeitigen Montage mehrerer Einspritzventile an den Einzelsaugrohren einer Sauganlage für in Reihe angeordnete Zylinder einer Brennkraftmaschine, wenn die Einspritzventile kraftstoffversorgungsseitig an einer gemeinsamen Kraftstoffverteilerleitung angeordnet sind (DE-OS 29 26 490). Hierbei ist zur Geräuschentkoppelung zwischen den Einspritzventilen und der Kraftstoffverteilerleitung jeweils eine Steckanordnung mit zwischengeschaltetem Dichtring vorgesehen, ähnlich der vorbeschriebenen saugrohrseitigen Steckanordnung. Durch diese Steckanordnung ist jedes Einspritzventil in gewissem Ausmaß relativ zur Kraftstoffverteilerleitung beweglich, so daß bei der gleichzeitigen Montage der Einspritzventile mit außermittigen Positionen einiger Einspritzventile zu ihren Aufnahmebohrungen zu rechnen ist.This risk is particularly great when mounting several injection valves on the individual intake pipes of a suction system for cylinders of an internal combustion engine arranged in series if the injection valves are arranged on the fuel supply side on a common fuel rail (DE-OS 29 26 490). There is a plug in each case for noise decoupling between the injection valves and the fuel rail order provided with an intermediate sealing ring, similar to the above-described intake manifold-side plug arrangement. By means of this plug-in arrangement, each injection valve can be moved to a certain extent relative to the fuel rail, so that when the injection valves are installed at the same time, eccentric positions of some injection valves can be expected in relation to their receiving bores.

Der Erfindung liegt die Aufgabe zugrunde, für ein Einspritzventil der eingangs beschriebenen Bauart eine Ausgestaltung aufzuzeigen, durch die beim Einstecken des Einspritzventils in die Aufnahmebohrung der Saugleitung eine Beschädigung des Dichtringes vermieden wird.The invention has for its object to show a configuration for an injection valve of the type described above, by which damage to the sealing ring is avoided when the injection valve is inserted into the receiving bore of the suction line.

Gelöst wird diese Aufgabe durch das kennzeichnende Merkmal des Hauptanspruches mit einer im freien Endbereich des Mundstückes angeordneten Zentriervorrichtung. Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 und 3 beschrieben. In beiden Ausgestaltungen wird die Erfindung jeweils an einer im Stand der Technik bekannten Schutzkappe für das Mundstück des Einspritzventiles verwirklicht. Die erfinderische Ausgestaltung der vorzugsweise aus Kunststoff gebildeten Schutzkappen ist in der durch zusätzliche Anordnungen geschaffenen, elastisch nachgiebigen Außenkontur zu sehen. Damit wird die Selbstzentrierung der Einspritzdüse vorteilhaft unterstützt. Weiter verbindet diese durch elastisch nachgiebige Zungen oder nachgiebige Lippen an Stegen geschaffene Außenkontur mit ihren Abmessungen gegenüber der Aufnahmebohrung ein selbsttätiges Vordringen des Mundstückes des Einspritzventiles in die Aufnahmebohrung mit der Vermeidung Beschädigung des Dichtringes an Bearbeitungskanten.This object is achieved by the characterizing feature of the main claim with a centering device arranged in the free end region of the mouthpiece. Advantageous embodiments of the invention are described in claims 2 and 3. In both embodiments, the invention is implemented in each case on a protective cap known from the prior art for the mouthpiece of the injection valve. The inventive design of the protective caps, which are preferably made of plastic, can be seen in the elastically flexible outer contour created by additional arrangements. This advantageously supports the self-centering of the injection nozzle. Furthermore, this outer contour created by elastically resilient tongues or resilient lips on webs, with its dimensions compared to the receiving bore, automatically pushes the mouthpiece of the injection valve into the receiving bore with avoiding damage to the sealing ring on the machining edges.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt. Es zeigen

  • rig. 1 ein teilweise dargestelltes Einspritzventil mit einer Schutzkappe, die eine durch nachgiebige Zungen gebildete, etwa halbkugelförmige, elastische Außenkontur aufweist,
  • Fig. 2 ein teilweise dargestelltes Einspritzventil mit einer Schutzkappe, die am Außenumfang verteilt angeordnete Stege aufweist, die jeweils im Bereich des großen Außendurchmessers in in Umfangsrichtung elastisch nachgiebige Lippen auslaufen.
Embodiments of the invention are shown in the drawing. Show it
  • rig. 1 shows a partially illustrated injection valve with a protective cap which has an approximately hemispherical, elastic outer contour formed by flexible tongues,
  • Fig. 2 is a partially illustrated injection valve with a protective cap which has webs distributed around the outer circumference, each of which runs out in the region of the large outer diameter in lips which are elastically flexible in the circumferential direction.

Ein Einspritzventil 1 für eine nicht dargestellte, gemischverdichtende Brennkraftmaschine trägt auf einem Mundstück 2 einen 0-Ring 3. Der 0-Ring 3 ist auf dem Mundstück 2 zwischen einer Schulter 4 des Einspritzventiles 1 und einer Schutzkappe 5 im freien Endbereich des Mundstückes 2 angeordnet. Zur Halterung des Einspritzventiles 1 in einem Saugrohr 6 wird das Einspritzventil 1 mit seinem Mundstück 2 in eine Wanddurchbrechung 7 des Saugrohres 6 eingesteckt, wobei die Haltung des Einspritzventiles 1 im wesentlichen durch den gepreßten O-Ring 3 zwischen der Wanddurchbrechung 7 und dem Mundstück 2 erreicht wird. Die Wanddurchbrechung bzw. Aufnahmebohrung 7 weist einsteckseitig eine .fase 8 auf.An injection valve 1 for a mixture-compressing internal combustion engine (not shown) carries an O-ring 3 on a mouthpiece 2. The 0-ring 3 is arranged on the mouthpiece 2 between a shoulder 4 of the injection valve 1 and a protective cap 5 in the free end region of the mouthpiece 2. To hold the injection valve 1 in an intake manifold 6, the injection valve 1 is inserted with its mouthpiece 2 into a wall opening 7 in the intake manifold 6, the position of the injection valve 1 essentially being achieved by the pressed O-ring 3 between the wall opening 7 and the mouthpiece 2 becomes. The wall opening or receiving bore 7 has a. Bevel 8 on the insertion side.

Durch eine Zentriervorrichtung 9 an der Schutzkappe 5 ist sichergestellt, daß das Einspritzventil 1 zu Anfang des Einsteckvorganges in der Aufnahmebohrung 7 zentriert und beim weiteren Einstecken bis zur Anlage des 0-Ringes 3 an der Fase 8 zentrisch geführt wird. Die Zentriervorrichtung 9 umfaßt an der aus Kunststoff gefertigten Schutzkappe 5 angeformte Zungen 10, die quer zur Steckrichtung Pfeil "A" des Einspritzventiles 1 elastisch nachgiebig sind und eine in der Mantelfläche einer Halbkugel liegende Außenkontur aufweisen. Weiter liegen die Randbereiche der nichtverformten Zungen 10 auf einem Durchmesser, der mindestens dem Außendurchmesser des ungepreßten 0-Ringes 3 entspricht. Durch diese Ausgestaltung der Zentriervorrichtung 9 wird eine außermittige Position des Mundstückes 2 des Einspritzventiles 1 beim Einstecken vermieden und eine damit mögliche Beschädigung des gummielastischen 0-Ringes 3 an den Bearbeitungskanten 11 und 12 verhindert.A centering device 9 on the protective cap 5 ensures that the injection valve 1 is centered in the receiving bore 7 at the beginning of the insertion process and is guided centrally during the further insertion until the 0-ring 3 rests on the chamfer 8. The centering device 9 comprises on the protective cap 5 made of plastic tongues 10, which are elastically flexible transversely to the insertion direction arrow "A" of the injection valve 1 and have an outer contour lying in the outer surface of a hemisphere. Furthermore, the edge regions of the non-deformed tongues 10 lie on a diameter which is at least the outer diameter of the unpressed 0-ring 3 corresponds. This configuration of the centering device 9 avoids an eccentric position of the mouthpiece 2 of the injection valve 1 when it is inserted and thus prevents possible damage to the rubber-elastic 0-ring 3 on the machining edges 11 and 12.

Beim Ausführungsbeispiel nach Fig. 2 sind gleiche Teile mit denselben Bezugsziffern wie in Fig. 1 belegt. Eine Zentriervorrichtung 13 umfaßt am Außenumfang einer Schutzkappe 14 angeordnete Stege 15, die eine in der Mantelfläche eines Kegels liegende Außenkontur aufweisen. Diese Stege 15 gehen mit zunehmendem Durchmesser jeweils von einem rechteckigen Querschnitt in einen sichelförmigen Querschnitt über. An der Schutzkappe 14 aus elastischem Werkstoff bilden die freien Enden der sichelförmigen Querschnitte in Umfangsrichtung elastisch nachgiebige Lippen 16. Die unverformten Lippen 16 an den Stegen 15 sind einem Durchmesser einbeschrieben, der dem Außendurchmesser des ungepreßten O-Ringes 3 entspricht. Die Stege 15 mit ihren auf der Mantelfläche eines relativ schlanken Kegels liegenden Rampen 17 erleichtern wesentlich das Einfädeln des Einspritzventils 1 in die Aufnahmebohrung 7, womit die Selbstzentrierung des Einspritzventiles 1 zusätzlich verbessert ist. Beim Einstecken des Einspritzventiles 1 in die Aufnahmebohrung 7 des Saugrohres 6 legen sich die Lippen 16 an den Stegen 15 durch den sichelförmigen Querschnitt an die Wandung der Aufnahmebohrung 7 an. Durch Abstimmen des Verlaufes des sichelförmigen Querschnittes kann das Maß der Nachgiebigkeit der Lippen 16 und damit deren Nachgiebigkeit quer zur Einsteckrichtung Pfeil "A" bestimmt werden. Bei abgestimmtem sichelförmigem Querschnitt und Werkstoff der Stege 15 bzw. der Schutzkappe 14 ist eine sichere Zentrierung beim Einstecken des Einspritzventiles 1 in die Aufnahmebohrung 7 mit geringstmöglichem seitlichen-Versatz erzielbar. Je kleiner der von der Zentriervorrichtung 13 durch die Lippen 16 zugelassene seitliche Versatz ist, umso geringer ist die Gefahr einerIn the exemplary embodiment according to FIG. 2, the same parts are given the same reference numbers as in FIG. 1. A centering device 13 comprises webs 15 arranged on the outer circumference of a protective cap 14, which webs have an outer contour lying in the lateral surface of a cone. With increasing diameter, these webs 15 each change from a rectangular cross section to a crescent cross section. On the protective cap 14 made of elastic material, the free ends of the crescent-shaped cross sections form elastically flexible lips 16 in the circumferential direction. The undeformed lips 16 on the webs 15 are inscribed with a diameter which corresponds to the outer diameter of the unpressed O-ring 3. The webs 15 with their ramps 17 lying on the lateral surface of a relatively slender cone substantially facilitate the threading of the injection valve 1 into the receiving bore 7, which additionally improves the self-centering of the injection valve 1. When the injection valve 1 is inserted into the receiving bore 7 of the suction pipe 6, the lips 16 rest on the webs 15 due to the crescent-shaped cross section on the wall of the receiving bore 7. By adjusting the course of the crescent-shaped cross section, the degree of flexibility of the lips 16 and thus their flexibility transverse to the direction of insertion arrow "A" can be determined. With a coordinated crescent-shaped cross-section and the material of the webs 15 and the protective cap 14, secure centering can be achieved when the injection valve 1 is inserted into the receiving bore 7 with the least possible lateral offset. The smaller the lateral offset permitted by the centering device 13 through the lips 16, the lower the risk of one

Beschädigung des 0-Ringes 3 an den Bearbeitungskanten 12 und 11 bei der Montage des Einspritzventiles 1 in der Aufnahmebohrung 7 des Saugrohres 6.Damage to the 0-ring 3 on the machining edges 12 and 11 when installing the injection valve 1 in the receiving bore 7 of the intake manifold 6.

Claims (3)

1. Einspritzventil für gemischverdichtende Brennkraftmaschinen, insbesondere für Einzelsaugrohr-Einspritzung, - das abspritzseitig durch eine Steckverbindung mittels eines Mundstückes (2) in einer Wanddurchbrechung (7) des Saugrohres (6) unter Zwischenschaltung eines gummielastischen Dichtringes (0-Ring 3) gehalten ist, dadurch gekennzeichnet, - daß eine Zentriervorrichtung (9, 13) im freien Endbereich des Mundstückes (2) angeordnet ist. 1. injection valve for mixture-compressing internal combustion engines, in particular for single intake manifold injection, which is held on the spray side by a plug-in connection by means of a mouthpiece (2) in a wall opening (7) in the suction pipe (6) with the interposition of a rubber-elastic sealing ring (0-ring 3), characterized in that - That a centering device (9, 13) is arranged in the free end region of the mouthpiece (2). 2. Einspritzventil nach Anspruch 1, - mit einer Schutzkappe (5) im freien Endbereich des Mundstückes (2), dadurch gekennzeichnet, - daß Zungen (10) an der Schutzkappe (5) angeordnet sind, - die quer zur Steckrichtung (Pfeil "A") des Einspritzventiles (1) elastisch nachgiebig sind und - eine in der Mantelfläche einer Halbkugel oder eines Kegels liegende Außenkontur aufweisen, - wobei die freien Randbereiche der Zungen auf einem Durchmesser liegen, der mindestens dem Außendurchmesser des ungepreßten 0-Ringes (3) entspricht. 2. Injector according to claim 1, with a protective cap (5) in the free end region of the mouthpiece (2), characterized in that - That tongues (10) are arranged on the protective cap (5), - The transversely to the direction of insertion (arrow "A") of the injection valve (1) are resilient and have an outer contour lying in the lateral surface of a hemisphere or a cone, - The free edge regions of the tongues lie on a diameter which corresponds at least to the outer diameter of the unpressed 0-ring (3). 3. Einspritzventil nach Anspruch 1, - mit einer Schutzkappe (14) im freien Endbenich des Mundstückes (2), dadurch gekennzeichnet, - daß Stege (15) am Außenumfang der Schutzkappe (14) angeordnet sind, - die eine in der Mantelfläche eines Kegels oder einer Halbkugel liegende Außenkontur aufweisen und - mit zunehmendem Durchmesser jeweils in einen sichelförmigen Querschnitt übergehen, - wobei die freien Enden der sichelförmigen Querschnitte in Umfangsrichtung elastisch nachgiebige Lippen (16) bilden, - die einem dem Außendurchmesser des ungepreßten 0-Ringes (3) mindestens entsprechenden Durchmesser einbeschrieben sind. 3. Injector according to claim 1, with a protective cap (14) in the free end area of the mouthpiece (2), characterized in that - That webs (15) are arranged on the outer circumference of the protective cap (14), - Which have an outer contour lying in the lateral surface of a cone or a hemisphere and - merge into a crescent-shaped cross-section with increasing diameter, - The free ends of the crescent-shaped cross sections form elastically flexible lips (16) in the circumferential direction, - The one of the outer diameter of the unpressed 0-ring (3) at least corresponding diameter are inscribed.
EP85101463A 1984-02-23 1985-02-12 Injection valve for injection into the intake pipe of combustion engines Expired EP0154209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843406487 DE3406487A1 (en) 1984-02-23 1984-02-23 INJECTION VALVE FOR MIX-COMPRESSIVE COMBUSTION ENGINES, ESPECIALLY FOR SINGLE SUCTION PIPE INJECTION
DE3406487 1984-02-23

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EP0154209A1 true EP0154209A1 (en) 1985-09-11
EP0154209B1 EP0154209B1 (en) 1987-04-29

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EP85101463A Expired EP0154209B1 (en) 1984-02-23 1985-02-12 Injection valve for injection into the intake pipe of combustion engines

Country Status (4)

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US (1) US4829965A (en)
EP (1) EP0154209B1 (en)
DE (2) DE3406487A1 (en)
WO (1) WO1986005845A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189863A2 (en) * 1985-01-29 1986-08-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Injection valve for mixture compression internal combustion engines
WO1986005845A1 (en) * 1984-02-23 1986-10-09 Bayerische Motoren Werke Aktiengesellschaft Mounting device for an injection valve for mix-compressing internal combustion engines
FR2598465A1 (en) * 1986-05-09 1987-11-13 Bosch Gmbh Robert Fuel injector for internal combustion engines with a preheat device in which the lagging ring protects the injector body
DE10065225B4 (en) * 2000-12-27 2005-09-22 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG joint assembly
EP3198133B1 (en) * 2014-09-22 2020-01-08 Volkswagen Aktiengesellschaft Intake pipe for an internal combustion engine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919231C2 (en) * 1989-06-13 1997-03-06 Bosch Gmbh Robert Fuel injection device for internal combustion engines
GB8926363D0 (en) * 1989-11-22 1990-01-10 Lucas Ind Plc Fuel injection system
DE19621221A1 (en) * 1996-05-25 1997-11-27 Bosch Gmbh Robert Unit and snap device for one unit
DE19908154B4 (en) * 1999-02-25 2006-11-09 Schaeffler Kg clamping element
EP1223337B1 (en) * 2001-01-12 2006-06-14 Ford Global Technologies, LLC Noise-reducing arrangement of washers under an injection nozzle
DE10108467A1 (en) * 2001-02-22 2002-09-05 Bosch Gmbh Robert fastening device
DE10109408A1 (en) * 2001-02-28 2002-09-05 Bosch Gmbh Robert fastening device
DE10338715B4 (en) * 2003-08-22 2014-07-17 Robert Bosch Gmbh Compensation element for a fuel injection valve
DE102005006818A1 (en) * 2005-02-15 2006-08-17 Volkswagen Mechatronic Gmbh & Co. Kg Sealing device for a fuel injector and method for sealing
JP4592012B2 (en) * 2005-06-03 2010-12-01 株式会社小糸製作所 Cleaning device for vehicle lamp and nozzle cover for cleaning device for vehicle lamp
WO2017027741A1 (en) * 2015-08-12 2017-02-16 Cummins Inc. Nozzle combustion shield and sealing member with improved heat transfer capabilities
DE102015223605A1 (en) * 2015-11-27 2017-06-01 Robert Bosch Gmbh Injector arrangement with thermal protection sleeve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208646A1 (en) * 1972-02-24 1973-08-30 Bosch Gmbh Robert MIXED COMPRESSING COMBUSTION MACHINE
GB2022727A (en) * 1978-06-03 1979-12-19 Bayerische Motoren Werke Ag Fuel injection nozzle fastening

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149817B2 (en) * 1971-10-06 1975-08-21 Daimler-Benz Ag, 7000 Stuttgart Arrangement of a fuel injection valve for electronically controlled fuel injection into the intake duct of an internal combustion engine
DE7232185U (en) * 1972-08-31 1975-06-12 Porsche F Ag Device for holding a fuel injection nozzle
DE3000061C2 (en) * 1980-01-03 1993-10-14 Bosch Gmbh Robert Fuel injection nozzle for internal combustion engines
DE3406487A1 (en) * 1984-02-23 1985-08-29 Bayerische Motoren Werke AG, 8000 München INJECTION VALVE FOR MIX-COMPRESSIVE COMBUSTION ENGINES, ESPECIALLY FOR SINGLE SUCTION PIPE INJECTION
DE3502919A1 (en) * 1985-01-29 1986-07-31 Bayerische Motoren Werke AG, 8000 München INJECTION VALVE FOR MIX-COMPRESSIVE INTERNAL COMBUSTION ENGINES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208646A1 (en) * 1972-02-24 1973-08-30 Bosch Gmbh Robert MIXED COMPRESSING COMBUSTION MACHINE
GB2022727A (en) * 1978-06-03 1979-12-19 Bayerische Motoren Werke Ag Fuel injection nozzle fastening

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005845A1 (en) * 1984-02-23 1986-10-09 Bayerische Motoren Werke Aktiengesellschaft Mounting device for an injection valve for mix-compressing internal combustion engines
EP0189863A2 (en) * 1985-01-29 1986-08-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Injection valve for mixture compression internal combustion engines
EP0189863A3 (en) * 1985-01-29 1988-04-27 Bayerische Motoren Werke Aktiengesellschaft Injection valve for mixture compression internal combustion engines
FR2598465A1 (en) * 1986-05-09 1987-11-13 Bosch Gmbh Robert Fuel injector for internal combustion engines with a preheat device in which the lagging ring protects the injector body
DE10065225B4 (en) * 2000-12-27 2005-09-22 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG joint assembly
EP3198133B1 (en) * 2014-09-22 2020-01-08 Volkswagen Aktiengesellschaft Intake pipe for an internal combustion engine

Also Published As

Publication number Publication date
EP0154209B1 (en) 1987-04-29
WO1986005845A1 (en) 1986-10-09
US4829965A (en) 1989-05-16
DE3560150D1 (en) 1987-06-04
DE3406487A1 (en) 1985-08-29

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