EP0821200A1 - Flame glow plug - Google Patents

Flame glow plug Download PDF

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Publication number
EP0821200A1
EP0821200A1 EP97108899A EP97108899A EP0821200A1 EP 0821200 A1 EP0821200 A1 EP 0821200A1 EP 97108899 A EP97108899 A EP 97108899A EP 97108899 A EP97108899 A EP 97108899A EP 0821200 A1 EP0821200 A1 EP 0821200A1
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EP
European Patent Office
Prior art keywords
glow
spiral
tube
glow plug
glow tube
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
EP97108899A
Other languages
German (de)
French (fr)
Other versions
EP0821200B1 (en
Inventor
Martin Eller
Ulrich Stephan
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.)
BorgWarner Ludwigsburg GmbH
Original Assignee
BERU Ruprecht GmbH and Co KG
Beru AG
Beru Werk Albert Ruprecht GmbH and Co KG
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 BERU Ruprecht GmbH and Co KG, Beru AG, Beru Werk Albert Ruprecht GmbH and Co KG filed Critical BERU Ruprecht GmbH and Co KG
Publication of EP0821200A1 publication Critical patent/EP0821200A1/en
Application granted granted Critical
Publication of EP0821200B1 publication Critical patent/EP0821200B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
    • F02N19/06—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of combustion-air by flame generating means, e.g. flame glow-plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines

Definitions

  • the free end of the ignition coil 3.2 is in the range Welding lens 8 welded to the glow pencil tip.
  • the larger range is Combination of three coils in one tubular Component 1 arranged; the outer surfaces are preferably located here of the coils on the inner surfaces of the tubular Component 1, while the outer diameter of this component corresponds to the inner diameter of the glow tube 5, so that a uniform distance from the outer area of the filaments to Inner wall of the glow tube 5 and thus its uniform Heating is guaranteed.
  • the tubular component 1 is made from a heat-resistant, electrically insulating Material prefers ceramic material and in particular essentially made of MgO, AlN and similar suitable materials.
  • the glow tube 5 is known per se Insulating material 2 filled.

Abstract

The ignition spiral (3.2) is arranged in the point of the incandescent tube (5) and in contact with it. The spiral combination is located in a tubular component part (1) of heat-resistant material on its inner surface, whereby the outer surface of the component part locates on the inner surface of the incandescent tube (5). The spiral combination comprises a pre-heat spiral (3.1) connected with the inner pole (7), with which a regulating spiral (4) is connected, and an ignition spiral (3.2) connected with the regulating spiral and the incandescent tube point (8). The tubular component part (1) comprises MgO, AlN or another ceramic material, which is electrically insulating.

Description

Die Erfindung betrifft eine Stabflammglühkerze zum Vorwärmen der Ansaugluft einer Brennkraftmaschine, insbesondere eines Dieselmotors gemäß Oberbegriff des Anspruchs 1.The invention relates to a rod flame glow plug Preheating the intake air of an internal combustion engine, in particular a diesel engine according to the preamble of claim 1.

Derartige Stabflammglühkerzen sind beispielsweise aus DE 43 01 252.3 bekannt. Nachteilig an einer solchen Stabflammglühkerze ist die Schwierigkeit, die Wendeln exakt konzentrisch in dem Glührohr anzuordnen, so daß der Abstand von Wendelaußenrändern zu der Innenwand des Glührohrs gleich ist; dieses wiederum ist Voraussetzung dafür, daß die Erwärmung gleichmäßig erfolgt, so daß keine Verkokung im Verdampferbereich durch ungleichförmige Hitzeausbildung auf der benachbarten Glührohrwand auftritt. Darüber hinaus können Kurzschlüsse auftreten, die durch am Glührohr anliegende Wendelbereiche entstehen. Kurzschlüsse können ebenfalls durch Zerstörung der herkömmlichen Heizstababdichtungen im Eintrittsbereich des Innenpols in das Glührohr der Kerze auftreten.Such rod flame glow plugs are made, for example DE 43 01 252.3 known. A disadvantage of such a rod flame glow plug is the difficulty, the coils exactly to be arranged concentrically in the glow tube so that the distance from the outer helix edges to the inner wall of the glow tube is; this in turn is a prerequisite for the warming takes place evenly, so that no coking in the evaporator area due to uneven heat formation on the neighboring glow tube wall occurs. In addition, you can Short circuits occur due to the glow tube Spiral areas arise. Short circuits can also by destroying the conventional heating rod seals in the Entry area of the inner pole into the glow tube of the candle occur.

Die Gefahr nicht konzentrischer Anordnung der Wendel(n) tritt besonders leicht im Bereich der Glührohrspitze auf, in dem das Ende der Glühwendel mit dem Glührohr verschweißt wird; aber auch bei dem Befüllen des Glührohrs, in das die Wendel oder Wendelkombination eingeführt ist, mit Isoliermaterial, wie beispielsweise MgO bzw. AlN, werden die Wendeln, und hierbei insbesondere die 24 Volt-Wendeln, insbesondere im Regelwendelbereich, entsprechend dem Kraftstoffvorwärm- und Verdampferbereich, leicht verschoben; die Verbiegung der Wendeln kann aber auch bei dem üblichen Verstemmvorgang des Wendelendes im Innenpolanschluß auftreten. Hierbei ist zu erwähnen, daß 24-Volt-Wendeln im Vergleich zu 12-Volt-Wendeln wesentlich dünneren Querschnitt aufweisen, was zu einer sehr weichen Federrate der ersteren führt; so besitzen Regelwendeln 12 V/24 V Durchmesser von etwa 0,6 mm/0,35 mm und Heizwendeln 12 V/24 V von etwa 1,00/0,55 mm.The danger of not concentric arrangement of the Helix (s) occurs particularly easily in the area of the glow tube tip on where the end of the filament with the glow tube is welded; but also when filling the glow tube, into which the coil or coil combination is inserted with insulating material, such as MgO or AlN, the coils, and in particular the 24 volt coils, especially in the control spiral area the fuel preheating and evaporator area, slightly shifted; the bending of the spirals can also be done with the usual caulking process of the spiral end in the inner pole connection occur. It should be mentioned that 24 volt coils in Compared to 12 volt filaments, the cross section is much thinner have, resulting in a very soft spring rate of the former leads; control coils have a 12 V / 24 V diameter of about 0.6 mm / 0.35 mm and 12 V / 24 V heating coils of about 1.00 / 0.55 mm.

Schließlich tritt mit den gleichen geschilderten Nachteilen bei der Fertigung der Wendelkombinationen Unrundheit auf; dieses gilt insbesondere bei den sogenannten 24 Volt-Wendeln. Nicht unbeachtlich ist auch der Anteil Wendeln, die durch unvorsichtigen Transport verbogen werden.Finally occurs with the same disadvantages described out-of-roundness in the manufacture of the spiral combinations on; this applies in particular to the so-called 24 volt coils. The proportion of coils that are not negligible be bent by careless transport.

Aufgabe der vorliegenden Erfindung ist es, eine Stabflammglühkerze der genannten Art zur Verfügung zu stellen, bei der die zuvor geschilderten Nachteile überwunden werden, und die darüber hinaus schneller und wirkungsvoller arbeiten, so daß im Endergebnis die Startzeit des Motors verringert wird.The object of the present invention is a rod flame glow plug of the type mentioned, in which the disadvantages described above are overcome, and who also work faster and more effectively, so that in the end the engine start time is reduced becomes.

Die erfindungsgemäße Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst; weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den nachfolgenden Ansprüchen 2 - 5.The object of the invention is characterized by the Features of claim 1 solved; more beneficial Refinements of the invention result from the following Claims 2-5.

Die Erfindung wird anhand der beiliegenden Figuren 1 und 2 näher erläutert.

  • Figur 1 ist ein schematischer Längsschnitt durch den Heizstab einer Ausführungsform der erfindungsgemäßen Stabflammglühkerze;
  • Figur 2 ist ein teilweiser Längsschnitt durch eine Ausführungsform der erfindungsgemäßen Stabflammglühkerze mit dem Heizstab gemäß Figur 1.
    • The invention is explained in more detail with reference to the attached FIGS. 1 and 2.
  • Figure 1 is a schematic longitudinal section through the heating element of an embodiment of the rod flame glow plug according to the invention;
  • FIG. 2 is a partial longitudinal section through an embodiment of the rod flame glow plug according to the invention with the heating rod according to FIG. 1.

    • Gemäß Figur 1 besteht der Heizstab dieser Ausführungsform der erfindungsgemäßen Stabflammglühkerze aus einem Glührohr 5, in dem eine Vorwärmwendel 3.1, eine Regelwendel 4 und eine Zündwendel 3.2 in Reihe hintereinander angeordnet sind; das freie Ende der Vorwärmwendel 3.1 ist mit dem Innenpol 7 leitend verbunden, beispielsweise durch Verstemmen.According to Figure 1, the heating element of this embodiment the rod flame glow plug according to the invention from one Glow tube 5, in which a preheating coil 3.1, a control coil 4 and an ignition coil 3.2 arranged in series one behind the other are; the free end of the preheating coil 3.1 is with the inner pole 7 conductively connected, for example by caulking.

    Im Eintrittsbereich des Innenpols 7 in das Glührohr 5 ist letzteres durch einen Dichtring aus Silikon verschlossen. Das freie Ende der Zündwendel 3.2 ist im Bereich der Schweißlinse 8 mit der Glühstiftspitze verschweißt. Bei der vorliegenden Ausführungsform ist der größere Bereich der Wendelkombination aus drei Wendeln in einem rohrförmigen Bauteil 1 angeordnet; hierbei liegen bevorzugt die Außenflächen der Wendeln an den Innenflächen des rohrförmigen Bauteils 1 an, während der Außendurchmesser dieses Bauteils dem Innendurchmesser des Glührohr 5 entspricht, so daß ein gleichförmiger Abstand des Außenbereichs der Glühwendeln zur Innenwand des Glührohrs 5 und damit dessen gleichförmige Erwärmung gewährleistet ist. Das rohrförmige Bauteil 1 besteht aus einem hitzebeständigen, elektrisch isolierenden Material bevorzugt Keramikmaterial und insbesondere im wesentlichen aus MgO, AlN und ähnlichen geeigneten Materialien. Das Glührohr 5 ist im übrigen mit an sich bekanntem Isoliermaterial 2 gefüllt.In the entry area of the inner pole 7 into the glow tube 5 the latter is closed by a silicone sealing ring. The free end of the ignition coil 3.2 is in the range Welding lens 8 welded to the glow pencil tip. In the present embodiment, the larger range is Combination of three coils in one tubular Component 1 arranged; the outer surfaces are preferably located here of the coils on the inner surfaces of the tubular Component 1, while the outer diameter of this component corresponds to the inner diameter of the glow tube 5, so that a uniform distance from the outer area of the filaments to Inner wall of the glow tube 5 and thus its uniform Heating is guaranteed. The tubular component 1 is made from a heat-resistant, electrically insulating Material prefers ceramic material and in particular essentially made of MgO, AlN and similar suitable materials. Incidentally, the glow tube 5 is known per se Insulating material 2 filled.

    Die in Figur 2 in einem teilweise Längsschnitt wiedergegebene Ausführungsform der erfindungsgemäßen Stabflammglühkerze weist den beschriebenen Heizstab gemäß Figur 1 auf; entsprechend haben die Bezugszeichen die zuvor gegebene Bedeutung. In Abhängigkeit von der Dimensionierung der Wendein der Wendelkombination sind die Vorwärmzone 15, die Verdampferzone 16 und die Zündzone 17 ausgebildet. Der Kraftstoff (hier: Diesel) tritt über den Kraftstoffanschluß 13 in die Kerze ein, wobei die Dosierung über die Drosselblende 14 erfolgt. Der Zwischenraum zwischen Verdampferrohr 12 und Heizstab ist mit Verdampfersiebgewebe gefüllt, in dem der Hitzetransfer zur Verdampfung des Brennstoffes stattfindet. Schutzrohr 9.2 und Flammberuhigungshülse 9.1 vervollständigen die erfindungsgemäße Stabflammglühkerze.The reproduced in Figure 2 in a partial longitudinal section Embodiment of the rod flame glow plug according to the invention has the described heating element according to FIG. 1 on; the reference numerals accordingly have the one given above Meaning. Depending on the dimensioning of the Wendein the coil combination are the preheating zone 15 which Evaporator zone 16 and the ignition zone 17 are formed. Of the Fuel (here: diesel) comes through the fuel connection 13 into the candle, the dosage via the throttle 14 takes place. The space between the evaporator tube 12 and heating element is filled with evaporator screen fabric, in which the heat transfer to evaporate the fuel takes place. Complete the protective tube 9.2 and the flame soothing sleeve 9.1 the rod flame glow plug according to the invention.

    Die erfindungsgemäße Flammstabglühkerze kann dadurch hergestellt werden, daß die Wendelkombination 3.1/4/3.2 mit dem Innenpol verstemmt und dann mit dem Glührohr 5 bei 8 verschweißt wird; um den gleichen Abstand der Außenflächen der Wendeln zum Glührohr 5 zu gewährleisten, wird das Keramikrohr 1 vor dem Schweißen zwischen Glührohr und Wendelkombination eingeschoben. Anschließend wird das Isoliermaterial 2 eingefüllt und das Glührohr 5 im Eintrittsbereich des Innenpols 7 mit einem Dichtring aus Silikon verschlossen.The flame rod glow plug according to the invention can thereby be made that the spiral combination 3.1 / 4 / 3.2 with caulked the inner pole and then with the glow tube 5 at 8 is welded; by the same distance from the outer surfaces to ensure the coils to the glow tube 5, the ceramic tube 1 before welding between glow tube and coil combination inserted. Then the insulation material 2 filled and the glow tube 5 in the entrance area of the Inner pole 7 closed with a silicone sealing ring.

    Ein Zündvorgang mit einer erfindungsgemäßen Stabflammglühkerze läuft derart ab, daß nach Ablauf einer Vorglühzeit und Vorwärmzeit, bei der der Heizstab 10 an der Spitze auf Zündtemperatur gebracht und der Vorwärmbereich 15 erhitzt wird, ein Magnetventil den Kraftstoff über den Kraftstoffanschluß 13 freischaltet. Dieser fließt dann durch den Dosiereinsatz 14 über den Vorwärmbereich 15 und Verdampferbereich 16, in dem er gleichmäßig erwärmt wird, zum Zündbereich 17, in dem der Kraftstoff dann durch Luftzumischung über 9.1 und 9.2 gezündet wird.An ignition process with a rod flame glow plug according to the invention runs in such a way that after a preheating time and preheat time at which the heating element 10 is on at the top Bring ignition temperature and the preheating area 15 heated , a solenoid valve supplies the fuel through the fuel port 13 unlocks. This then flows through the dosing insert 14 over the preheating area 15 and evaporator area 16, in which it is heated uniformly, to the ignition area 17, in which the fuel is then added by air is ignited via 9.1 and 9.2.

    Neben den Vorteilen, die die Lösung der erfindungsgemäßen Aufgabe ergibt, kann die Ausschußrate (bis zu 20 %) bei der der Produktion der Heizstäbe soweit reduziert werden, daß Kontrolle der produzierten Heizstäbe durch Röntgen entfallen kann.In addition to the advantages that the solution of the invention Task results, the reject rate (up to 20%) in which the production of the heating rods is reduced so far that control of the produced heating rods by X-ray can be omitted.

    Claims (5)

    Stabflammglühkerze, mit einem Glührohr (5) mit Innenpol (7), wobei eine Wendelkombination von mindestens einer Regel- und Glühwendel in Reihe in dem Glührohr (5) angeordnet ist, wobei die Zündwendel (3.2) in der Spitze des Glührohrs (5), dieses kontaktierend, angeordnet ist, dadurch gekennzeichnet, daß die Wendelkombination im wesentlichen in einem rohrförmigen Bauteil (1) aus hitzebeständigem Material angeordnet ist und an dessen Innenfläche anliegt, wobei die Außenfläche des Bauteils (1) an der Innenfläche des Glührohrs (5) anliegt.Pole flame glow plug, with a glow tube (5) with Inner pole (7), with a spiral combination of at least a control and incandescent filament in series in the glow tube (5) is arranged, the ignition coil (3.2) in the tip of the Glow tube (5), contacting this, is arranged, thereby characterized in that the spiral combination essentially in a tubular component (1) made of heat-resistant material is arranged and rests on the inner surface, the Outer surface of the component (1) on the inner surface of the glow tube (5) is present. Stabflammglühkerze nach Anspruch 1, dadurch gekennzeichnet, daß die Wendelkombination aus einer, mit dem Innenpol (7) verbundenen Vorwärmwendel (3.1) einer mit dieser verbundenen Regelwendel (4) und einer mit dieser und der Glührohrspitze (8) verbundenen Zündwendel (3.2) besteht.Rod flame glow plug according to claim 1, characterized in that the spiral combination of one, with the inner pole (7) connected preheating coil (3.1) one with this connected control coil (4) and one with this and the Glow tube tip (8) connected ignition coil (3.2). Stabflammglühkerze nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß das rohrförmige Bauteil (1) aus MgO, AlN oder einem anderen Keramikmaterial besteht, welches elektrisch isolierend ist.Rod flame glow plug according to claim 1 and / or 2, characterized in that the tubular component (1) MgO, AlN or another ceramic material, which is electrically insulating. Stabflammglühkerze nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Abdichtung (6) des Glührohrs (5) im Bereich des Eintritts des Innenpols (7) durch Silikon erfolgt.Pole flame glow plug according to at least one of the preceding Claims, characterized in that the seal (6) of the glow tube (5) in the region of the entry of the Inner pole (7) is made of silicone. Stabflammglühkerze nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der freie Raum im Glührohr 5 mit elektrisch isolierendem Material gefüllt ist.Pole flame glow plug according to at least one of the preceding Claims, characterized in that the free Space in the glow tube 5 with electrically insulating material is filled.
    EP97108899A 1996-07-26 1997-06-03 Flame glow plug Expired - Lifetime EP0821200B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19630402 1996-07-26
    DE19630402A DE19630402C2 (en) 1996-07-26 1996-07-26 Pole flame glow plug

    Publications (2)

    Publication Number Publication Date
    EP0821200A1 true EP0821200A1 (en) 1998-01-28
    EP0821200B1 EP0821200B1 (en) 2003-03-19

    Family

    ID=7801062

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97108899A Expired - Lifetime EP0821200B1 (en) 1996-07-26 1997-06-03 Flame glow plug

    Country Status (5)

    Country Link
    US (1) US5880433A (en)
    EP (1) EP0821200B1 (en)
    AT (1) ATE235026T1 (en)
    DE (2) DE19630402C2 (en)
    ES (1) ES2195052T3 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP2886960A1 (en) * 2013-12-23 2015-06-24 SIEVA d.o.o., PE Spodnja Idrija Heating rod comprising a ceramic internal sleeve, glow plug and method for manufacturing the same

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPH10169982A (en) * 1996-12-11 1998-06-26 Isuzu Ceramics Kenkyusho:Kk Ceramic heater and its manufacture
    DE19914619A1 (en) * 1999-03-31 2000-10-12 Beru Ag Method for sealing the connection-side end region of the glow tube of a glow plug and glow plugs with a closure according to the method
    DE10041289B4 (en) * 2000-08-22 2005-05-04 Beru Ag glow plug
    DE60225618T3 (en) * 2001-04-27 2014-04-30 Ngk Spark Plug Co., Ltd. Heating, glow plug and water heater
    DE10314218A1 (en) 2003-03-28 2004-10-14 Vacuumschmelze Gmbh & Co. Kg Electric heating element
    DE102005034888A1 (en) * 2005-07-26 2007-02-01 Beru Ag Fluid e.g. diesel fuel, vaporizer for e.g. internal combustion engine of motor vehicle, has vaporizer chamber with outlet opening, and fluid supply device arranged outside of heating rod for supplying fluid to be vaporized to chamber
    MX2010003164A (en) * 2007-09-23 2010-07-01 Saint Gobain Ceramics Heating element systems.
    DE102008015402B3 (en) * 2008-03-22 2009-10-22 Beru Ag Glow plug for diesel engine, has regulating coil and heating coil adjacent to regulating coil, where regulating coil has two sections between which third section is provided
    DE102008043228A1 (en) * 2008-10-28 2010-04-29 Hilti Aktiengesellschaft Internal combustion setting device
    US10670276B2 (en) * 2013-05-02 2020-06-02 Original Pellet Grill Company Llc Double-sealed high-temperature resistant DC ignitor for use with wood pellet burner assemblies
    JP6279925B2 (en) * 2014-02-14 2018-02-14 日本特殊陶業株式会社 Glow plug

    Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2506768A (en) * 1948-07-19 1950-05-09 Caterpillar Tractor Co Glow plug for internal-combustion engines
    US3065436A (en) * 1960-07-12 1962-11-20 Mc Graw Edison Co Sheathed heating element
    FR2433251A1 (en) * 1978-08-08 1980-03-07 Lack Rene Glow plug for rapid starting of diesel engines - contains resistance heater filament made of tungsten in tantalum alloy and surrounded by heat resistant alloy sheath
    DE8809396U1 (en) * 1988-07-22 1989-11-16 Beru Ruprecht Gmbh & Co Kg, 7140 Ludwigsburg, De
    WO1991018244A1 (en) * 1990-05-17 1991-11-28 Caterpillar Inc. Encapsulated heating filament for glow plug
    EP0648978A2 (en) * 1993-10-04 1995-04-19 Isuzu Ceramics Research Institute Co., Ltd. Ceramic glow plug

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE1065538B (en) * 1954-12-20
    DE3825013A1 (en) * 1988-07-22 1990-01-25 Beru Werk Ruprecht Gmbh Co A Heater plug
    DE4010479A1 (en) * 1990-03-31 1991-10-02 Bosch Gmbh Robert GLOW PLUG FOR INTERNAL COMBUSTION ENGINES
    DE4133338A1 (en) * 1991-10-08 1993-04-15 Beru Werk Ruprecht Gmbh Co A GLOW PLUG
    DE4301252A1 (en) * 1993-01-19 1994-07-21 Beru Werk Ruprecht Gmbh Co A Pole flame glow plug
    DE4334771C2 (en) * 1993-10-12 1996-03-28 Beru Werk Ruprecht Gmbh Co A Glow plug
    DE19506711C1 (en) * 1995-02-25 1996-05-09 Beru Werk Ruprecht Gmbh Co A Flame glow plug for Diesel engines

    Patent Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2506768A (en) * 1948-07-19 1950-05-09 Caterpillar Tractor Co Glow plug for internal-combustion engines
    US3065436A (en) * 1960-07-12 1962-11-20 Mc Graw Edison Co Sheathed heating element
    FR2433251A1 (en) * 1978-08-08 1980-03-07 Lack Rene Glow plug for rapid starting of diesel engines - contains resistance heater filament made of tungsten in tantalum alloy and surrounded by heat resistant alloy sheath
    DE8809396U1 (en) * 1988-07-22 1989-11-16 Beru Ruprecht Gmbh & Co Kg, 7140 Ludwigsburg, De
    WO1991018244A1 (en) * 1990-05-17 1991-11-28 Caterpillar Inc. Encapsulated heating filament for glow plug
    EP0648978A2 (en) * 1993-10-04 1995-04-19 Isuzu Ceramics Research Institute Co., Ltd. Ceramic glow plug

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP2886960A1 (en) * 2013-12-23 2015-06-24 SIEVA d.o.o., PE Spodnja Idrija Heating rod comprising a ceramic internal sleeve, glow plug and method for manufacturing the same
    WO2015097044A1 (en) * 2013-12-23 2015-07-02 Sieva D.O.O.,Pe Spodnja Idrija Heating rod comprising a ceramic internal sleeve, glow plug and method for manufacturing the same

    Also Published As

    Publication number Publication date
    DE19630402C2 (en) 2000-12-28
    ES2195052T3 (en) 2003-12-01
    US5880433A (en) 1999-03-09
    ATE235026T1 (en) 2003-04-15
    DE59709544D1 (en) 2003-04-24
    EP0821200B1 (en) 2003-03-19
    DE19630402A1 (en) 1998-01-29

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