EP0448830B1 - Flame glowplug for an injected air compressing combustion engine - Google Patents

Flame glowplug for an injected air compressing combustion engine Download PDF

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Publication number
EP0448830B1
EP0448830B1 EP90125167A EP90125167A EP0448830B1 EP 0448830 B1 EP0448830 B1 EP 0448830B1 EP 90125167 A EP90125167 A EP 90125167A EP 90125167 A EP90125167 A EP 90125167A EP 0448830 B1 EP0448830 B1 EP 0448830B1
Authority
EP
European Patent Office
Prior art keywords
flame
tube
type heater
air
plug according
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
EP90125167A
Other languages
German (de)
French (fr)
Other versions
EP0448830A3 (en
EP0448830A2 (en
Inventor
Roland Klak
Friedrich Schmid
Peter Joppig
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz AG
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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of EP0448830A2 publication Critical patent/EP0448830A2/en
Publication of EP0448830A3 publication Critical patent/EP0448830A3/en
Application granted granted Critical
Publication of EP0448830B1 publication Critical patent/EP0448830B1/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 invention relates to a flame glow plug for an air-compressing internal combustion engine according to the features specified in the preamble of claim 1.
  • the injection internal combustion engines operating on the compression-ignition principle require starting aids in order to raise the compression end temperatures to values above the compression-ignition temperature.
  • a flame glow plug is known as a starting aid during the starting process, which essentially consists of the candle housing with flame tube, the dosing insert, the heating element and the evaporator tube surrounding it.
  • the fuel supplied via the dosing insert gets into an annular space between the heating element and the evaporator tube and flows out there quickly.
  • the residence time of the outflowing fuel in the area of the heating element is short, so that the fuel does not evaporate fully and the ignition of the fuel is thus impaired.
  • a complex flame glow plug is known from FR-A-2 159 085, in which a helical swirl channel, which extends from the metering insert along the heating rod and is formed by a heating wire, is arranged. At a Such a build-up of soot and thus malfunctions of the combustion process cannot be avoided.
  • the invention has for its object to provide a flame glow plug by simple structural measures, through which fuel is processed so that it evaporates optimally and forms an ignitable mixture with the air entering the flame tube.
  • the flame glow plug 1 shown in FIG. 1 for an internal combustion engine with air compression and auto-ignition essentially consists of a candle housing 2 with a metering insert 3, a heating element 4 and an evaporator tube 6 surrounding it, forming an annular space 5.
  • the upper end of this evaporator tube 6 is arranged at a distance from the dosing insert 3, the candle housing 2 being drawn in in this area in such a way that it is sealingly connected to the heating element 4.
  • a screw-shaped swirl channel 7 is provided on the heating element 4 for the adhesive connection from the metering insert 3 to the annular space 5, through which the fuel enters the annular space 5 in a swirling manner.
  • the free end of the heating element 4 protrudes from the evaporator tube 6 and is shielded by a cylindrical flame tube 8 connected to the candle housing 2 and provided with through openings 9 for the inflow air.
  • annular air deflector 10 is arranged between the flame tube 8 and the heating element 4 at the level of the passage openings 9, as shown in FIGS. 2 to 5, which is connected by webs 11 fastened to the flame tube 8 below the passage openings 9 (Fig. 2 and 5) is supported.
  • the air flowing into the interior of the flame glow plug 1 is thus deflected upwards and downwards.
  • the flame tube 8 is not cylindrical, but star-shaped.
  • the air deflector 10 is firmly connected to the indentations 8a, while the projections 8b have the passage openings 9. Due to the special design of the flame tube 8, the air in the interior of the flame glow plug 1 is strongly swirled and an improvement in the fuel-air mixture is achieved outside this plug 1.
  • the free end of the flame tube 8 is drawn in in an arc shape in order to redirect the air or the fuel-air mixture there to the hot heating element 4, whereby the mixture formation is further improved and a higher burnout is achieved.
  • gills 12 are provided on the flame tube 8 above the passage openings 9 and direct the inflowing air between the flame tube 8 and the evaporator tube 6 and finally between the air deflector 10 and the heating element 4 in order to ventilate the interior there.
  • the air deflector 10 has a larger diameter than the evaporator tube 6.
  • the special designs with regard to the air inlets and the air deflector mean that the risk of soot or coke deposits between the heating element and the evaporator tube is eliminated due to the good ventilation.
  • the part of the heating rod 4 protruding from the evaporator tube 6 can be grooved, in the form of superimposed annular grooves 13 according to FIG. 6 or a helical annular groove 14 according to FIGS. 2, 3, 5, which results in an increase in surface area on the heating rod 4 resulting in an improvement in ignition.
  • FIG. 6 and 7 show air deflectors 10 which are each formed in the flame tube 8 by two superimposed slots 10a, 10b, which delimit an indented wall section 10c.
  • the air deflectors can be arranged in one or two rows.

Description

Die Erfindung betrifft eine Flammglühkerze für eine luftverdichtende Einspritzbrennkraftmaschine nach den im Oberbegriff des Patentanspruchs 1 angegebenen Merkmalen.The invention relates to a flame glow plug for an air-compressing internal combustion engine according to the features specified in the preamble of claim 1.

Die nach dem Selbstzünderprinzip arbeitenden Einspritzbrennkraftmaschinen benötigen unter bestimmten Bedingungen beim Starten Anlaßhilfen, um die Verdichtungsendtemperaturen auf Werte oberhalb der Selbstzündungstemperatur anzuheben.Under certain conditions, the injection internal combustion engines operating on the compression-ignition principle require starting aids in order to raise the compression end temperatures to values above the compression-ignition temperature.

Aus der DE-A-33 09 133 ist eine Flammglühkerze als Anlaßhilfe beim Startvorgang bekannt, die im wesentlichen aus dem Kerzengehäuse mit Flammrohr, aus dem Dosiereinsatz, dem Heizstab und dem diesen umgebenden Verdampferrohr besteht. Der über den Dosiereinsatz zugeführte Kraftstoff gelangt in einen Ringzwischenraum zwischen Heizstab und Verdampferrohr und fließt dort schnell ab. Die Verweilzeit des abströmenden Kraftstoffes im Bereich des Heizstabes ist von kurzer Dauer, so daß der Kraftstoff nicht voll verdampft und somit die Zündung des Kraftstoffes beeinträchtigt ist.From DE-A-33 09 133 a flame glow plug is known as a starting aid during the starting process, which essentially consists of the candle housing with flame tube, the dosing insert, the heating element and the evaporator tube surrounding it. The fuel supplied via the dosing insert gets into an annular space between the heating element and the evaporator tube and flows out there quickly. The residence time of the outflowing fuel in the area of the heating element is short, so that the fuel does not evaporate fully and the ignition of the fuel is thus impaired.

Ferner ist eine aufwendige Flammglühkerze aus der FR-A-2 159 085 bekannt, bei der ein vom Dosiereinsatz entlang des Heizstabes sich erstreckender schraubenförmiger und von einem Heizdraht gebildeter Drallkanal angeordnet ist. Bei einer derartigen Ausführung sind Rußansammlung und damit Störungen des Brennablaufs nicht zu vermeiden.Furthermore, a complex flame glow plug is known from FR-A-2 159 085, in which a helical swirl channel, which extends from the metering insert along the heating rod and is formed by a heating wire, is arranged. At a Such a build-up of soot and thus malfunctions of the combustion process cannot be avoided.

Der Erfindung liegt die Aufgabe zugrunde, durch einfache bauliche Maßnahmen eine Flammglühkerze zu schaffen, durch die Kraftstoff so aufbereitet wird, daß er optimal verdampft und mit der in das Flammrohr eindringenden Luft ein zündfähiges Gemisch bildet.The invention has for its object to provide a flame glow plug by simple structural measures, through which fuel is processed so that it evaporates optimally and forms an ignitable mixture with the air entering the flame tube.

Zur Lösung dieser Aufgabe dienen die im Kennzeichen des Patentanspruchs 1 angegebenen Merkmale.The features specified in the characterizing part of patent claim 1 serve to solve this problem.

Durch die besondere Kraftstoffverbindung zwischen Dosiereinsatz und Verdampferrohr ergibt sich infolge der Oberflächenvergrößerung eine wesentlich bessere Verdampfung des Kraftstoffes in dem engen schraubenförmig verlaufenden Drallkanal, aus dem der Kraftstoff drallförmig austritt und beschleunigt durch den Ringzwischenraum in das Flammrohr gelangt und sich dort mit der einströmenden Luft zu einem optimalen Kraftstoff-Luftgemisch vermischt. Die Zündwilligkeit wird wesentlich erhöht.The special fuel connection between the dosing insert and the evaporator tube results in a much better evaporation of the fuel in the narrow helical swirl channel, from which the fuel emerges in a swirling manner and accelerates through the gap between the rings and into the flame tube, where it becomes one with the inflowing air optimal fuel-air mixture mixed. Ignitability is increased significantly.

In den Unteransprüchen sind förderliche Weiterbildungen der Erfindung angegeben.Advantageous further developments of the invention are specified in the subclaims.

In der Zeichnung sind Ausführungsbeispiele der Erfindung gezeigt und im folgenden näher beschrieben. Es zeigen:

Fig.1
eine Flammglühkerze,
Fig.2
den unteren Teil der Flammglühkerze mit ringförmigem Luftabweiser im zylindrisch ausgebildeten Flammrohr,
Fig.3
ein sternförmig ausgebildetes Flammrohr mit Luftabweiser,
Fig.4
das Flammrohr nach der Linie V - V in Fig. 4,
Fig.5
das Flammrohr mit Eindrückungen für den zusätzlichen Lufteintritt und
Fig.6
das Flammrohr mit anders gestaltetem Luftabweiser,
Fig.7
das Flammrohr um 90° gedreht,
Fig.8
eine bekannte Flammglühkerze mit bis zum Dosiereinsatz heranreichendem Verdampferrohr.
Exemplary embodiments of the invention are shown in the drawing and described in more detail below. Show it:
Fig. 1
a flame glow plug,
Fig. 2
the lower part of the flame glow plug with a ring-shaped air deflector in the cylindrical flame tube,
Fig. 3
a star-shaped flame tube with air deflector,
Fig. 4
the flame tube along the line V - V in Fig. 4,
Fig. 5
the flame tube with indentations for the additional air inlet and
Fig. 6
the flame tube with a differently designed air deflector,
Fig. 7
the flame tube rotated by 90 °,
Fig. 8
a known flame glow plug with evaporator tube reaching up to the dosing insert.

Die in Fig. 1 gezeigte Flammglühkerze 1 für eine Brennkraftmaschine mit Luftverdichtung und Selbstzündung besteht im wesentlichen aus einem Kerzengehäuse 2 mit einem Dosiereinsatz 3, aus einem Heizstab 4 und einem diesen unter Bildung eines Ringzwischenraumes 5 umgebenden Verdampferrohr 6. Das obenliegende Ende dieses Verdampferrohres 6 ist von dem Dosiereinsatz 3 mit Abstand angeordnet, wobei das Kerzengehäuse 2 in diesem Bereich derart eingezogen ausgebildet ist, daß es mit dem Heizstab 4 abdichtend verbunden ist. Für die Kaftstoffverbindung vom Dosiereinsatz 3 bis zum Ringzwischenraum 5 ist ein schraubenförmiger Drallkanal 7 am Heizstab 4 vorgesehen, durch den der Kraftstoff drallförmig in den Ringzwischenraum 5 gelangt.The flame glow plug 1 shown in FIG. 1 for an internal combustion engine with air compression and auto-ignition essentially consists of a candle housing 2 with a metering insert 3, a heating element 4 and an evaporator tube 6 surrounding it, forming an annular space 5. The upper end of this evaporator tube 6 is arranged at a distance from the dosing insert 3, the candle housing 2 being drawn in in this area in such a way that it is sealingly connected to the heating element 4. A screw-shaped swirl channel 7 is provided on the heating element 4 for the adhesive connection from the metering insert 3 to the annular space 5, through which the fuel enters the annular space 5 in a swirling manner.

Das freie Ende des Heizstabes 4 ragt aus dem Verdampferrohr 6 heraus und ist durch ein mit dem Kerzengehäuse 2 verbundenes zylindrisch ausgebildetes Flammrohr 8 abgeschirmt, das mit Durchtrittsöffnungen 9 für die Einströmluft versehen ist.The free end of the heating element 4 protrudes from the evaporator tube 6 and is shielded by a cylindrical flame tube 8 connected to the candle housing 2 and provided with through openings 9 for the inflow air.

Damit der Heizstab 4 der eindringenden Luft nicht direkt ausgesetzt ist, ist gemäß Fig. 2 bis 5 zwischen dem Flammrohr 8 und dem Heizstab 4 in Höhe der Durchtrittsöffnungen 9 ein ringförmiger Luftabweiser 10 angeordnet, der durch am Flammrohr 8 unterhalb der Durchtrittsöffnungen 9 befestigte Stege 11 (Fig.2 und 5) gehaltert ist.So that the heating element 4 is not directly exposed to the penetrating air, an annular air deflector 10 is arranged between the flame tube 8 and the heating element 4 at the level of the passage openings 9, as shown in FIGS. 2 to 5, which is connected by webs 11 fastened to the flame tube 8 below the passage openings 9 (Fig. 2 and 5) is supported.

Die einströmende Luft in den Innenraum der Flammglühkerze 1 wird somit nach oben und unten abgelenkt.The air flowing into the interior of the flame glow plug 1 is thus deflected upwards and downwards.

In Fig. 3 und 4 ist ein Ausführungsbeispiel gezeigt, bei den das Flammrohr 8 nicht zylindrisch, sondern sternförmig ausgebildet ist. Der Luftabweiser 10 ist mit den Eindrückungen 8a fest verbunden, während die Vorsprünge 8b die Durchtrittsöffnungen 9 aufweisen. Durch die besondere Ausbildung des Flammrohres 8 wird die Luft im Innenraum der Flammglühkerze 1 stark verwirbelt und außerhalb dieser Kerze 1 eine Verbesserung des Kraftstoff-Luftgemisches erreicht.3 and 4, an embodiment is shown in which the flame tube 8 is not cylindrical, but star-shaped. The air deflector 10 is firmly connected to the indentations 8a, while the projections 8b have the passage openings 9. Due to the special design of the flame tube 8, the air in the interior of the flame glow plug 1 is strongly swirled and an improvement in the fuel-air mixture is achieved outside this plug 1.

Nach Fig. 2 ist das freie Ende des Flammrohres 8 nach innen bogenförmig eingezogen, um dort die eingeströmte Luft bzw. das Kraftstoff-Luftgemisch auf den heißen Heizstab 4 umzulenken, wodurch die Gemischbildung weiter verbessert und ein höherer Ausbrand erreicht wird.2, the free end of the flame tube 8 is drawn in in an arc shape in order to redirect the air or the fuel-air mixture there to the hot heating element 4, whereby the mixture formation is further improved and a higher burnout is achieved.

Nach Fig. 5 sind oberhalb der Durchtrittsöffnungen 9 Kiemen 12 am Flammrohr 8 vorgesehen, die die einströmende Luft zwischen Flammrohr 8 und Verdampferrohr 6 und schließlich zwischen Luftabweiser 10 und Heizstab 4 lenken, um dort den Innenraum zu belüften. Der Luftabweiser 10 weist zu diesem Zweck gegenüber dem Verdampferrohr 6 einen größeren Durchmesser auf.According to FIG. 5, gills 12 are provided on the flame tube 8 above the passage openings 9 and direct the inflowing air between the flame tube 8 and the evaporator tube 6 and finally between the air deflector 10 and the heating element 4 in order to ventilate the interior there. For this purpose, the air deflector 10 has a larger diameter than the evaporator tube 6.

Die besonderen Ausgestaltungen bezüglich der Lufteintritte und des Luftabweisers führen dazu, daß die Gefahr des Rußens oder der Koksablagerung zwischen Heizstab und Verdampferrohr aufgrund der guten Belüftung beseitigt ist.The special designs with regard to the air inlets and the air deflector mean that the risk of soot or coke deposits between the heating element and the evaporator tube is eliminated due to the good ventilation.

Der aus dem Verdampferrohr 6 herausragende Teil des Heizstabes 4 kann gerillt ausgeführt sein, und zwar in Form von übereinanderliegenden Ringnuten 13 gemäß Fig. 6 oder einer schraubenförmig verlaufenden Ringnut 14 gemäß Fig. 2, 3, 5, wodurch sich eine Oberflächenvergrößerung auf dem Heizstab 4 mit der Folge einer Zündverbesserung ergibt.The part of the heating rod 4 protruding from the evaporator tube 6 can be grooved, in the form of superimposed annular grooves 13 according to FIG. 6 or a helical annular groove 14 according to FIGS. 2, 3, 5, which results in an increase in surface area on the heating rod 4 resulting in an improvement in ignition.

In Fig. 6 und 7 sind Luftabweiser 10 gezeigt, die dem Flammrohr 8 jeweils durch zwei übereinanderliegende in Umfangsrichtung verlaufende Einschlitzungen 10a, 10b, die einen eingedrückten Wandabschnitt 10c begrenzen, gebildet sind. Die Luftabweiser können ein- oder zweireihig angeordnet sein.6 and 7 show air deflectors 10 which are each formed in the flame tube 8 by two superimposed slots 10a, 10b, which delimit an indented wall section 10c. The air deflectors can be arranged in one or two rows.

In Fig. 8 ist eine bekannte Flammglühkerze gezeigt, bei der das Verdampferrohr 6 bis zum Dosiereinsatz 3 hochgezogen ist. Hier fließt der aus dem Dosiereinsatz kommende Kraftstoff zwischen Heizstab 4 und Verdampferrohr 6 in das Flammrohr 8. Der Kraftstoff hat nur über einen geringen Teil Berührung mit dem heißen Heizstab. Es sammelt sich Ruß an, der mit zunehmender Dicke verkokt und schlimmstenfalls zum Ausfall der Flammglühkerze führt.8 shows a known flame glow plug in which the evaporator tube 6 is pulled up to the metering insert 3. Here, the fuel coming from the metering insert flows between the heating element 4 and the evaporator tube 6 into the flame tube 8. The fuel has only a small part of contact with the hot heating element. Soot accumulates, which cokes with increasing thickness and, in the worst case, leads to failure of the flame glow plug.

Claims (8)

  1. Flame-type heater plug for an air-compression fuel-injection internal-combustion engine, with a proportioning insert provided for the fuel supply and located on the plug housing, in which an evaporator tube arranged at a distance from the proportioning insert surrounds the heating bar to form an annular interspace, the free bar end projecting from the evaporator tube and being shielded by a flame tube which is connected to the plug housing and which is located in the flow path of the intake air flowing in the suction tube of the internal-combustion engine and is equipped with passage orifices, and with a fuel connection between the proportioning insert and the evaporator tube, characterized in that the fuel connection is designed as a swirl channel (7) opening into the annular interspace (5) and running helically on the heating bar (4).
  2. Flame-type heater plug according to Claim 1, characterized in that the heating bar (4) is pressed into the part of the plug housing (2) located above the evaporator tube (6).
  3. Flame-type heater plug according to claim 1 or 2, characterized in that at least one air deflector (10) is arranged between the heating bar (4) and flame tube (8) level with the passage orifices (9).
  4. Flame-type heater plug according to Claim 3, characterized in that the air deflector (10) is fastened via webs to the part of the flame tube (8) located below the passage orifices (9).
  5. Flame-type heater plug according to Claim 3, characterized in that the air deflector (10) is formed by wall portions (10) which are pressed inwards out of the flame tube and the upper and lower limitations of which have orifices.
  6. Flame-type heater plug according to one of the preceding claims, characterized in that the bar part of the heating bar (4) projecting from the evaporator tube (6) has mutually superposed annular grooves (13) or a helical annular groove (14).
  7. Flame-type heater plug according to one of the preceding claims, characterized in that the free end of the flame tube is drawn arcuately inwards for deflecting the fuel/air mixture onto the heating bar (4).
  8. Flame-type heater plug according to one of the preceding claims, characterized in that the flame tube (8) is equipped above its passage orifices (9) with gills (12) guiding the air into the space formed by the flame tube and evaporator tube.
EP90125167A 1990-03-29 1990-12-21 Flame glowplug for an injected air compressing combustion engine Expired - Lifetime EP0448830B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4010093 1990-03-29
DE4010093A DE4010093C1 (en) 1990-03-29 1990-03-29 Flame plug for IC-engine - has fuel metering insert and spaced evaporator tube to enclose heating bar

Publications (3)

Publication Number Publication Date
EP0448830A2 EP0448830A2 (en) 1991-10-02
EP0448830A3 EP0448830A3 (en) 1992-01-22
EP0448830B1 true EP0448830B1 (en) 1994-03-02

Family

ID=6403331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125167A Expired - Lifetime EP0448830B1 (en) 1990-03-29 1990-12-21 Flame glowplug for an injected air compressing combustion engine

Country Status (4)

Country Link
US (1) US5182437A (en)
EP (1) EP0448830B1 (en)
DE (1) DE4010093C1 (en)
RU (1) RU1838663C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4142195C2 (en) * 1991-12-20 1993-10-14 Daimler Benz Ag Flame glow plug for a diesel internal combustion engine
DE4243965A1 (en) * 1992-12-23 1994-06-30 Beru Werk Ruprecht Gmbh Co A Flame annealing plant
DE4308543A1 (en) * 1993-03-17 1994-09-22 Man Nutzfahrzeuge Ag Flame starting system for diesel engines
DE19506711C1 (en) * 1995-02-25 1996-05-09 Beru Werk Ruprecht Gmbh Co A Flame glow plug for Diesel engines
DE19629928A1 (en) * 1996-07-24 1998-01-29 Beru Werk Ruprecht Gmbh Co A Method for operating a flame start system for an internal combustion engine and flame start system for an internal combustion engine
US5860804A (en) * 1997-10-30 1999-01-19 Societe En Commandite Gaz Metropolitain Baffle ignitor assembly
US6076493A (en) * 1998-10-26 2000-06-20 Caterpillar Inc. Glow plug shield with thermal barrier coating and ignition catalyst
US8022337B2 (en) * 2008-06-10 2011-09-20 Locust, Usa, Inc. Ignitor plug assembly
BRPI1012683A2 (en) * 2009-06-26 2016-03-29 Orbital Australia Pty Ltd combustion of low vapor pressure fuels in spark ignition engines
US20110129393A1 (en) * 2009-12-02 2011-06-02 Lecea Oscar A Electrically-Heated Contact Fuel Vaporizer for a Hydrocarbon Reformer
DE102010027468A1 (en) * 2010-07-17 2012-01-19 Borgwarner Beru Systems Gmbh Glow plug for diesel engine, has glow pin that protrudes from housing, where glow plug comprises sequence of elevations and depressions on surface at outer side of housing, where glow pin comprises thick and thin portions

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE7133650U (en) * 1973-02-15 Bosch R Gmbh Flame glow plug for diesel and multi-fuel engines
FR1577731A (en) * 1967-10-18 1969-08-08
GB1247299A (en) * 1968-11-19 1971-09-22 Ise Electronics Corp Improvements in or relating to electric discharge display tubes
DE1903999C3 (en) * 1969-01-28 1975-01-09 Robert Bosch Gmbh, 7000 Stuttgart Flame glow plug as a starting aid for diesel and multi-fuel engines
DE2031607A1 (en) * 1970-06-26 1971-12-30 Robert Bosch Gmbh, 7000 Stuttgart Flame glow plug as a starting aid for diesel and multi-fuel engines
DE2112815A1 (en) * 1971-03-17 1972-10-05 Bosch Gmbh Robert Flame candle as starting aid for diesel and multi-fuel engines
JPS5137085Y2 (en) * 1971-04-20 1976-09-10
DE2201441A1 (en) * 1972-01-13 1973-07-19 Bosch Gmbh Robert GLOW PLUG AS A STARTING AID FOR DIESEL AND PETROL ENGINES
DE3136852A1 (en) * 1980-10-30 1982-06-16 Beru-Werk Albert Ruprecht Gmbh & Co Kg, 7140 Ludwigsburg FLAME GLOW CANDLE FOR INTERNAL COMBUSTION ENGINES
DE3301559C2 (en) * 1983-01-19 1986-06-12 Daimler-Benz Ag, 7000 Stuttgart Stick glow plug for an air-compressing internal combustion engine
DE3309133A1 (en) * 1983-03-15 1984-09-20 Robert Bosch Gmbh, 7000 Stuttgart FLAME GLOW PEN CANDLE FOR PREHEATING THE INTAKE AIR OF COMBUSTION ENGINES

Also Published As

Publication number Publication date
DE4010093C1 (en) 1991-08-14
RU1838663C (en) 1993-08-30
US5182437A (en) 1993-01-26
EP0448830A3 (en) 1992-01-22
EP0448830A2 (en) 1991-10-02

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