EP0045530A2 - Fuel injector valve for combustion engines - Google Patents

Fuel injector valve for combustion engines Download PDF

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Publication number
EP0045530A2
EP0045530A2 EP81200371A EP81200371A EP0045530A2 EP 0045530 A2 EP0045530 A2 EP 0045530A2 EP 81200371 A EP81200371 A EP 81200371A EP 81200371 A EP81200371 A EP 81200371A EP 0045530 A2 EP0045530 A2 EP 0045530A2
Authority
EP
European Patent Office
Prior art keywords
valve
needle
combustion engines
nozzle body
valve seat
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.)
Granted
Application number
EP81200371A
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German (de)
French (fr)
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EP0045530B1 (en
EP0045530A3 (en
Inventor
Karl Hofmann
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
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Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0045530A2 publication Critical patent/EP0045530A2/en
Publication of EP0045530A3 publication Critical patent/EP0045530A3/en
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Publication of EP0045530B1 publication Critical patent/EP0045530B1/en
Expired legal-status Critical Current

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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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/005—Measuring or detecting injection-valve lift, e.g. to determine injection timing

Definitions

  • the invention relates to a fuel injection valve according to the preamble of the main claim. It has already been discussed to produce the insulating layer between the needle shaft and the guide bore from wear-resistant plastic. However, it should be borne in mind that it should be difficult to comply with the composition of the mixture, the right-to-manufacture application process and the tolerance range of all parameters.
  • the fuel injection valve for internal combustion engines according to the invention with the characterizing feature of the main claim has the advantage over the discussed prior art that the insulating layer referred to as a hard coat layer made of aluminum oxide fulfills all requirements with regard to insulation, hardness and wear with a reasonable manufacturing effort.
  • Advantageous further developments of the invention are described in the subclaims.
  • With the configuration of the fuel injection nozzle according to claim 2, an easy to produce valve needle is created.
  • the method according to claim 3 is expediently proposed as a method for producing the fuel injection nozzle.
  • the fuel injection valve for internal combustion engines is mainly made of electrically conductive materials and is rotationally symmetrical with respect to the valve axis 9. It essentially consists of a nozzle holder 10, an adjoining intermediate plate 11 and a nozzle body 12, all of which are screwed together by a union nut 13.
  • a valve needle 15 has a needle shaft 18 which slides indirectly in a guide bore 14 of the nozzle body 12, a sealing cone 17 which interacts with a valve seat 16 of the nozzle body 12 and a pressure pin 19 which, when the injection valve is inoperative, is in constant contact with a pressure pin 20.
  • a spring space 21 open at the end with a shoulder 22 and a bore 23 made of g e are saved, to which a recess 24 leading to the outside is continued.
  • a helical compression spring 25 is supported on the one hand via a spring adjusting washer 26 on the shoulder 22 and on the other hand via an insulation to be described on the pressure bolt 20.
  • the fuel passes through inlet channels 29-32 and ring channels 33, 34 into a pressure chamber 27 of the nozzle body 12, which has a connection to a spray opening 28 via the valve seat 16.
  • a line element 40 made of electrically conductive materials consists of a contact pin 41 fastened in the bore 23 by means of an insulating sleeve 42, a contact spring 43 clamped onto the end section thereof and a contact cone 44 which is injected therein. This lies in a recess 46 in a pressure bolt 45, so that there is constant electrical contact between the two parts.
  • a guide surface 48 and a bearing surface 49 of the pressure pin 20 are coated with an insulation 47 made of abrasion-resistant material, so that the pressure spring 25 is electrically insulated from the pin 20.
  • a connecting piece 50 is fastened via an insulating sleeve 51, the contact tongue 52 of which is a line (not shown) Receives test device and the end portion of a connecting line 54 is soldered into the sleeve 53; the other end section of this connecting line is also connected to the contact pin 41.
  • a sleeve 60 made of aluminum is fastened on the needle shaft 18 of the valve needle 15, and the outer jacket of the sleeve 60 carries an aluminum oxide layer 61.
  • This layer is produced by anodic oxidation (anodizing) and slides in the guide bore 14 of the nozzle body 12.
  • the injector is screwed into its functional state in the engine block (not shown) and consequently has electrically conductive contact with the ground of the vehicle electrical system.
  • the electrical switch formed by the valve seat 16 and the sealing cone 17 is closed, as a result of which a circuit between the nozzle body 12 and the test device (not shown) is also closed.
  • the electrical switch 16/17 is open - and since the valve needle 15, the pressure pin 20, the contact pin 41 and the connecting piece 50 are electrically insulated from the nozzle body 12 and the nozzle holder 11 - the current path opens and thus interrupts the circuit electrical connection between engine block and test device.

Abstract

Es wird ein Kraftstoff-Einspritzventil für Brennkraftmaschinen vorgeschlagen, dessen Ventilnadel (15) mit dem Ventilsitz (16) des Düsenkörpers (12) einen elektrischen Schalter (16, 17) bilden, der durch Öffnen und Schließen den Spritzbeginn und die Spritzdauer anzeigt. Auf dem stählernen Nadelschaft (18) ist eine Aluminium-Hülse (60) unlösbar befestigt, deren Außenmantel eine Aluminium-Oxidschicht (61) trägt; diese ist mittels anodischer Oxidation hergestellt.

Figure imgaf001
A fuel injection valve for internal combustion engines is proposed, the valve needle (15) of which forms an electrical switch (16, 17) with the valve seat (16) of the nozzle body (12), which indicates the start and duration of the spray by opening and closing. An aluminum sleeve (60) is permanently attached to the steel needle shaft (18), the outer jacket of which carries an aluminum oxide layer (61); this is produced by means of anodic oxidation.
Figure imgaf001

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Kraftstoff-Einspritzventil nach der Gattung des Hauptanspruchs. Es ist bereits diskutiert worden, die Isolierschicht zwischen dem Nadelschaft und der Führungsbohrung aus abriebfestem Kunststoff herzustellen. Dabei ist jedoch zu bedenken, daß es schwierig sein dürfte, die Zusammensetzung der Mischung, das fertigungsrechte Auftragsverfahren und den Toleranzbereich aller Parameter einzuhalten.The invention relates to a fuel injection valve according to the preamble of the main claim. It has already been discussed to produce the insulating layer between the needle shaft and the guide bore from wear-resistant plastic. However, it should be borne in mind that it should be difficult to comply with the composition of the mixture, the right-to-manufacture application process and the tolerance range of all parameters.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Kraftstoff-Einspritzventil für Brennkraftmaschinen mit dem kennzeichnenden Merkmal des Hauptanspruchs hat gegenüber dem erörterten Stand der Technik den Vorteil, daß die als Hartcoat-Schicht bezeichnete Isolierschicht aus Aluminium-Oxid alle Anforderungen bezüglich Isolation, Härte und Verschleiß mit vertretbarem Fertigungsaufwand erfüllt. Vorteilhafte'Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben. Mit der Ausgestaltung der Kraftstoff-Einspritzdüse nach Anspruch 2 wird eine einfach herstellbare Ventilnadel geschaffen. Zweckmäßigerweise wird als Verfahren zum Herstellen der Kraftstoff-Einspritzdüse das Verfahren nach Anspruch 3 vorgeschlagen.The fuel injection valve for internal combustion engines according to the invention with the characterizing feature of the main claim has the advantage over the discussed prior art that the insulating layer referred to as a hard coat layer made of aluminum oxide fulfills all requirements with regard to insulation, hardness and wear with a reasonable manufacturing effort. Advantageous further developments of the invention are described in the subclaims. With the configuration of the fuel injection nozzle according to claim 2, an easy to produce valve needle is created. The method according to claim 3 is expediently proposed as a method for producing the fuel injection nozzle.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in nachstehender Beschreibung näher erläutert. Die einzige Figur zeigt ein Kraftstoff-Einspritzventil in Axialschnitt und vergrößertem Maßstab.An embodiment of the invention is shown in the drawing and explained in more detail in the description below. The single figure shows a fuel injection valve in axial section and on an enlarged scale.

Beschreibung des AusführungsbeispielesDescription of the embodiment

Das Kraftstoff-Einspritzventil für Brennkraftmaschinen ist hautpsächlich aus elektrisch leitenden Materialien hergestellt und bezüglich der Ventilachse 9 rotationssymmetrisch. Es besteht im wesentlichen aus einem Düsenhalter 10, einer sich anschließenden Zwischenplatte 11 und einem Düsenkörper 12, die alle durch eine Überwurfmutter 13 miteinander verschraubt sind.The fuel injection valve for internal combustion engines is mainly made of electrically conductive materials and is rotationally symmetrical with respect to the valve axis 9. It essentially consists of a nozzle holder 10, an adjoining intermediate plate 11 and a nozzle body 12, all of which are screwed together by a union nut 13.

Eine Ventilnadel 15 hat einen in einer Führungsbohrung 14 des Düsenkörpers 12 mittelbar gleitenden Nadelschaft 18, einen mit einem Ventilsitz 16 des Düsenkörpers 12 zuammenwirkenden Dichtkegel 17 und einen Druckzapfen 19, der im funktionslosen Zustand des Einspritzventils an einem Druckbolzen 20 dauernd anliegt.A valve needle 15 has a needle shaft 18 which slides indirectly in a guide bore 14 of the nozzle body 12, a sealing cone 17 which interacts with a valve seat 16 of the nozzle body 12 and a pressure pin 19 which, when the injection valve is inoperative, is in constant contact with a pressure pin 20.

Im Düsenhalter 10 sind ein stirnseitig offener Federraum 21 mit einer Schulter 22 und eine Bohrung 23 ausge-spart, an die sich eine nach außen führende Aussparung 24 fortsetzt. Eine Schraubendruckfeder 25 stützt sich zum einen über eine Federeinstellscheibe 26 an der Schulter 22 und zum andern über eine noch zu beschreibene Isolierung am Druckbolzen 20 ab. Der Kraftstoff gelangt über Zulaufkanäle 29-32 und Ringkanäle 33, 34 in einen Druckraum 27 des Düsenkörpers 12, der über den Ventilsitz 16 Verbindung mit einer Spritzöffnung 28 aufweist.In the nozzle holder 10, a spring space 21 open at the end with a shoulder 22 and a bore 23 made of g e are saved, to which a recess 24 leading to the outside is continued. A helical compression spring 25 is supported on the one hand via a spring adjusting washer 26 on the shoulder 22 and on the other hand via an insulation to be described on the pressure bolt 20. The fuel passes through inlet channels 29-32 and ring channels 33, 34 into a pressure chamber 27 of the nozzle body 12, which has a connection to a spray opening 28 via the valve seat 16.

Ein aus elektrisch leitenden Werkstoffen hergestelltes Leitungselement 40 besteht aus einem mittels einer Isolierhülse 42 in der Bohrung 23 befestigten Kontaktstift 41, einer auf dessen Endabschnitt geklemmen Kontaktfeder 43 und einem in dieser eingesprengten Kontaktkegel 44. Dieser liegt in einer Mulde 46 eines Druckbolzens 45 kraftschlüssig an, so daß zwischen beiden Teilen dauernd elektrischer Kontakt besteht. Eine Führungsfläche 48 und eine Auflagefläche 49 des Druckbolzens 20 sind mit einer Isolierung 47 aus abriebfestem Werkstoff beschichtet, so daß die Druckfeder 25 gegenüber dem Bolzen 20 elektrisch isoliert ist.A line element 40 made of electrically conductive materials consists of a contact pin 41 fastened in the bore 23 by means of an insulating sleeve 42, a contact spring 43 clamped onto the end section thereof and a contact cone 44 which is injected therein. This lies in a recess 46 in a pressure bolt 45, so that there is constant electrical contact between the two parts. A guide surface 48 and a bearing surface 49 of the pressure pin 20 are coated with an insulation 47 made of abrasion-resistant material, so that the pressure spring 25 is electrically insulated from the pin 20.

In der Aussparung 24 des Düsenhalters 10 ist über eine Isolierhülse 51 ein Anschlußstück 50 befestigt, dessen Kontaktzunge 52 eine nichtgezeichnete Leitung eines Testgerätes aufnimmt und in dessen Hülse 53 der Endabschnitt einer Verbindungsleitung 54 eingelötet ist; ebenso ist der andere Endabschnitt dieser Verbindungsleitung mit dem Kontaktstift 41 verbunden.In the recess 24 of the nozzle holder 10, a connecting piece 50 is fastened via an insulating sleeve 51, the contact tongue 52 of which is a line (not shown) Receives test device and the end portion of a connecting line 54 is soldered into the sleeve 53; the other end section of this connecting line is also connected to the contact pin 41.

Eine Hülse 60 aus Aluminium ist auf dem Nadelschaft 18 der Ventilnadel 15 befestigt, und der Außenmantel der Hülse 60 trägt eine Aluminium-Oxydschicht 61. Diese Schicht ist durch anodische Oxidation (anodisieren) hergestellt und gleitet in der Führungsbohrung 14 des Düsenkörpers 12.A sleeve 60 made of aluminum is fastened on the needle shaft 18 of the valve needle 15, and the outer jacket of the sleeve 60 carries an aluminum oxide layer 61. This layer is produced by anodic oxidation (anodizing) and slides in the guide bore 14 of the nozzle body 12.

Das Einspritzventil ist in seinem Funktionszustand im nichtdargestellten Motorblock eingeschraubt und hat folglich elektrisch leitenden Kontakt mit Masse des Bordnetzes. Im gezeichneten Schließzustand ist der vom Ventilsitz 16 und Dichtkegel 17 gebildete elektrische Schalter geschlossen, wodurch ein Stromkreis zwischen dem Düsenkörper 12 und dem nichtgezeichneten Testgerät ebenfalls geschlossen ist. Im Öffnungszustand des Einspritzventils ist der elektrische Schalter 16/17 geöffnet - und da die Ventilnadel 15, der Druckbolzen 20, der Kontaktstift 41 und das Anschlußstück 50 gegenüber dem Düsenkörper 12 und dem Düsenhalter 11 eine elektrische Isolierung aufweisen - öffnet der Strompfad und unterbricht mithin die elektrische Verbindung zwischen Motorblock und Testgerät.The injector is screwed into its functional state in the engine block (not shown) and consequently has electrically conductive contact with the ground of the vehicle electrical system. In the closed state shown, the electrical switch formed by the valve seat 16 and the sealing cone 17 is closed, as a result of which a circuit between the nozzle body 12 and the test device (not shown) is also closed. In the open state of the injection valve, the electrical switch 16/17 is open - and since the valve needle 15, the pressure pin 20, the contact pin 41 and the connecting piece 50 are electrically insulated from the nozzle body 12 and the nozzle holder 11 - the current path opens and thus interrupts the circuit electrical connection between engine block and test device.

Claims (3)

1. Kraftstoffeinspritzventil für Brennkraftmaschinen mit einem Ventilsitz in einem Düsenkörper aus elektrisch leitendem Werkstoff, und mit einer Ventilnadel aus elektrisch leitendem Werkstoff, die durch den Druck des Kraftstoffs gegen die Kraft einer Druckfeder vom Ventilsitz abhebt und die mit dem Ventilsitz einen elektrischen Schalter bildet, und mit einer Isolierschicht auf dem Nadelschaft der Ventilnadel, der in einer Führungsbohrung des Düsenkörpers gleitet, dadurch gekennzeichnet, daß die Isolierschicht (61) aus Aluminium-Oxyd besteht.1.Fuel injection valve for internal combustion engines with a valve seat in a nozzle body made of electrically conductive material, and with a valve needle made of electrically conductive material, which lifts off from the valve seat due to the pressure of the fuel against the force of a compression spring and which forms an electrical switch with the valve seat, and with an insulating layer on the needle shaft of the valve needle, which slides in a guide hole in the nozzle body, characterized in that the insulating layer (61) consists of aluminum oxide. 2. Düse nach Anspruch 1, dadurch gekennzeichnet, daß die Ventilnadel (15) aus Stahl hergestellt ist, daß eine Hülse (60) aus Aluminium auf dem Nadelschaft (18) der Ventilnadel (15) befestigt ist und daE der Außenmantel der Hülse (60) die Aluminium-Oxydschicht (61) trägt.2. Nozzle according to claim 1, characterized in that the valve needle (15) is made of steel, that a sleeve (60) made of aluminum is attached to the needle shaft (18) of the valve needle (15) and that the outer jacket of the sleeve (60 ) carries the aluminum oxide layer (61). 3. Verfahren zum Herstellen der Düse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Isolierschicht (61) mittels anodischer Oxidation hergestellt wird.3. A method for producing the nozzle according to claim 1 or 2, characterized in that the insulating layer (61) is produced by means of anodic oxidation.
EP81200371A 1980-08-06 1981-04-03 Fuel injector valve for combustion engines Expired EP0045530B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3029721A DE3029721A1 (en) 1980-08-06 1980-08-06 FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
DE3029721 1980-08-06

Publications (3)

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EP0045530A2 true EP0045530A2 (en) 1982-02-10
EP0045530A3 EP0045530A3 (en) 1982-06-23
EP0045530B1 EP0045530B1 (en) 1984-09-05

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EP81200371A Expired EP0045530B1 (en) 1980-08-06 1981-04-03 Fuel injector valve for combustion engines

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US (1) US4398670A (en)
EP (1) EP0045530B1 (en)
JP (1) JPS5752672A (en)
DE (2) DE3029721A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526483A1 (en) * 1982-05-06 1983-11-10 Gurtner Sa Oil injection monitor for separately lubricated two-stroke engine - uses sprung ball contact in supply line to passivate timing circuit in gate of semiconductor switch
GB2125894A (en) * 1982-08-26 1984-03-14 Lucas Ind Plc I.C. engine fuel injection nozzle
EP0116168A2 (en) * 1983-01-13 1984-08-22 Robert Bosch Gmbh Fuel injection pump
GB2153907A (en) * 1983-12-14 1985-08-29 Diesel Kiki Co Solenoid valve constituting an on-off switch
GB2154658A (en) * 1984-02-28 1985-09-11 Diesel Kiki Co Valve unit including a switch
WO1992005363A1 (en) * 1990-09-18 1992-04-02 Lucas Industries Public Limited Company Fuel injection nozzles
WO1998007980A1 (en) * 1996-08-17 1998-02-26 Robert Bosch Gmbh Injection valve, particularly for direct injection of fuel into the combustion chamber of an internal combustion engine

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461170A (en) * 1981-11-10 1984-07-24 Nippondenso Co., Ltd. Fuel injection device for Diesel engines
JPS59169210U (en) * 1983-04-28 1984-11-13 本田技研工業株式会社 automotive ventilation system
GB8318635D0 (en) * 1983-07-09 1983-08-10 Lucas Ind Plc Fuel injection nozzles
US4625918A (en) * 1983-07-29 1986-12-02 Diesel Kiki Co., Ltd. Fuel injection valve
JPS6045872U (en) * 1983-09-07 1985-03-30 株式会社ボッシュオートモーティブ　システム fuel injection valve
JPS6085248A (en) * 1983-10-18 1985-05-14 Diesel Kiki Co Ltd Fuel injection valve
JPS60135661A (en) * 1983-12-21 1985-07-19 Ngk Spark Plug Co Ltd Fuel injection device equipped with solenoid for controlling opening and closing of valve
US4662564A (en) * 1984-05-15 1987-05-05 Diesel Kiki Co., Ltd. Fuel injection nozzle with timing sensor
US4573349A (en) * 1984-06-28 1986-03-04 International Harvester Company Needle position indicator for a fuel injection nozzle holder
GB8719372D0 (en) * 1987-08-15 1987-09-23 Lucas Ind Plc Fuel injection nozzle
EP0387179A3 (en) * 1989-03-07 1991-01-02 Karl Holm An atomizing nozzle device and an inhaler
US5333786A (en) * 1993-06-03 1994-08-02 Cummins Engine Company, Inc. Fuel injection device for an internal combustion engine
WO1994029589A1 (en) * 1993-06-15 1994-12-22 Invent Engineering Pty. Limited Fuel injector adapted for position sensing
DE10026286A1 (en) * 2000-05-26 2001-12-13 Orange Gmbh Injection valve for injecting fuel into the combustion chamber of an internal combustion engine
BR0017320B1 (en) * 2000-08-21 2009-01-13 needle position sensing device.
DE10146781B4 (en) * 2001-09-22 2015-02-12 Robert Bosch Gmbh Method and device for monitoring the activation of an actuating element
DE10319329A1 (en) * 2003-04-29 2004-11-25 Siemens Ag Injector with seat contact switch
CN1324233C (en) * 2003-09-08 2007-07-04 金剑 Fuel injector for bearing heavy load
EP1559903B1 (en) * 2004-01-28 2008-12-10 Continental Automotive Italy S.p.A. Fuel injector with deformable needle
CN100489300C (en) * 2007-01-15 2009-05-20 金剑 Double-spring fuel injector
FR3024183B1 (en) * 2014-07-22 2019-07-26 Delphi Technologies Ip Limited FUEL INJECTOR

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SU182356A1 (en) * 1964-06-11 1966-07-13 М. Г. Сандомирский METHOD FOR DETERMINING THE BEGINNING OF OPENING A VALVE
US3942366A (en) * 1973-02-02 1976-03-09 Robert Bosch Gmbh Fuel injection arrangement
DE2748447A1 (en) * 1976-11-08 1978-05-11 Gen Motors Corp IGNITION SYSTEM FOR EXTERNAL-IGNITION INJECTION COMBUSTION MACHINES
GB2024934A (en) * 1978-06-29 1980-01-16 Gen Motors Corp Fuel ignition timing nozzle

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Publication number Priority date Publication date Assignee Title
DE2925187A1 (en) * 1979-06-22 1981-01-08 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
FR2466630B1 (en) * 1979-10-05 1985-06-28 Weber Spa ELECTROMAGNETICALLY ACTUATED INJECTOR FOR INTERNAL COMBUSTION ENGINES

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
SU182356A1 (en) * 1964-06-11 1966-07-13 М. Г. Сандомирский METHOD FOR DETERMINING THE BEGINNING OF OPENING A VALVE
US3942366A (en) * 1973-02-02 1976-03-09 Robert Bosch Gmbh Fuel injection arrangement
DE2748447A1 (en) * 1976-11-08 1978-05-11 Gen Motors Corp IGNITION SYSTEM FOR EXTERNAL-IGNITION INJECTION COMBUSTION MACHINES
GB2024934A (en) * 1978-06-29 1980-01-16 Gen Motors Corp Fuel ignition timing nozzle

Non-Patent Citations (1)

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Title
"Soviet Inventions Illustrated" Januar 1967, Sektion D & SU - A - 182 356 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526483A1 (en) * 1982-05-06 1983-11-10 Gurtner Sa Oil injection monitor for separately lubricated two-stroke engine - uses sprung ball contact in supply line to passivate timing circuit in gate of semiconductor switch
GB2125894A (en) * 1982-08-26 1984-03-14 Lucas Ind Plc I.C. engine fuel injection nozzle
EP0116168A2 (en) * 1983-01-13 1984-08-22 Robert Bosch Gmbh Fuel injection pump
EP0116168B1 (en) * 1983-01-13 1987-06-03 Robert Bosch Gmbh Fuel injection pump
GB2153907A (en) * 1983-12-14 1985-08-29 Diesel Kiki Co Solenoid valve constituting an on-off switch
GB2154658A (en) * 1984-02-28 1985-09-11 Diesel Kiki Co Valve unit including a switch
WO1992005363A1 (en) * 1990-09-18 1992-04-02 Lucas Industries Public Limited Company Fuel injection nozzles
WO1998007980A1 (en) * 1996-08-17 1998-02-26 Robert Bosch Gmbh Injection valve, particularly for direct injection of fuel into the combustion chamber of an internal combustion engine
US6155499A (en) * 1996-08-17 2000-12-05 Robert Bosch Gmbh Injection valve, particularly for direct injection of fuel into the combustion chamber of an internal combustion engine

Also Published As

Publication number Publication date
EP0045530B1 (en) 1984-09-05
JPS5752672A (en) 1982-03-29
US4398670A (en) 1983-08-16
DE3165816D1 (en) 1984-10-11
JPS6358259B2 (en) 1988-11-15
EP0045530A3 (en) 1982-06-23
DE3029721A1 (en) 1982-03-04

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