EP0648977B2 - Bougie à incandescence - Google Patents

Bougie à incandescence Download PDF

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Publication number
EP0648977B2
EP0648977B2 EP94114747A EP94114747A EP0648977B2 EP 0648977 B2 EP0648977 B2 EP 0648977B2 EP 94114747 A EP94114747 A EP 94114747A EP 94114747 A EP94114747 A EP 94114747A EP 0648977 B2 EP0648977 B2 EP 0648977B2
Authority
EP
European Patent Office
Prior art keywords
contact
heating element
hollow body
glow plug
ceramic
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
EP94114747A
Other languages
German (de)
English (en)
Other versions
EP0648977B1 (fr
EP0648977A3 (fr
EP0648977A2 (fr
Inventor
Helmut Müller
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.)
BERU Ruprecht GmbH and Co KG
Beru Werk Albert Ruprecht GmbH and Co KG
Original Assignee
BERU Ruprecht GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6500295&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0648977(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BERU Ruprecht GmbH and Co KG, Beru Werk Albert Ruprecht GmbH and Co KG filed Critical BERU Ruprecht GmbH and Co KG
Priority to DE59402135.9T priority Critical patent/DE59402135C5/de
Publication of EP0648977A2 publication Critical patent/EP0648977A2/fr
Publication of EP0648977A3 publication Critical patent/EP0648977A3/fr
Publication of EP0648977B1 publication Critical patent/EP0648977B1/fr
Application granted granted Critical
Publication of EP0648977B2 publication Critical patent/EP0648977B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 glow plug with a Hollow body in which a ceramic heating element with sintered ceramic heating element is arranged, the protrudes axially on one side of the hollow body and its Heating element with power supply connections is connected and has a heating area.
  • Such glow plugs with a ceramic conductor and a metal resistance coil as a heating element are from DE 42 03 183 A1 and DE 41 33 046 A1 known.
  • Glow plugs are commonly used as a jump start in diesel engines and alcohol engines, for the ignition of additional heaters, to ignite gas burners etc. related.
  • the ceramic conductor consists of a U-shaped curved conductor piece that at the front end of the protruding Part of the heating element is arranged and forms a first heating element.
  • This first heating element is via a second heating element in the form of a coil Made of a metallic material with the power supply connections connected.
  • the object underlying the invention is in contrast, the glow plug at the beginning mentioned type so that it can be done with a simple Manufacturing process that a smaller number of manufacturing steps, from fewer parts is producible and with a thermal overload is avoided at the contact points.
  • the invention Because of the training according to the invention, it is moreover, it is possible to measure the candle give, which corresponds geometrically to metal glow plugs, i.e. a compact ceramic glow plug to carry out, moreover, with the already existing ones and known manufacturing processes in Large series, i.e. is inexpensive to manufacture.
  • the invention Glow plug has a heating element, thermally and mechanically even at temperatures stable above 1200 ° C.
  • the glow plug shown in Fig. 1 consists essentially from a metallic hollow body 1, in the Cavity a ceramic heating element 2 is arranged is at one end, i.e. at the motor end of the Hollow body 1 protrudes axially from this.
  • the heating element 2 is essentially made of a ceramic insulator 7, for example made of AIN, in which a ceramic Conductor 6, for example made of SiC or SiAlON, is sintered.
  • the ceramic leader 6 is designed so that in the engine-side heating rod tip, i.e. in the heating area 5, a zone 15 with a higher one electrical resistance is formed.
  • This zone 15 forms the actual heating resistor, which is preferably U-shaped in the manner shown in Fig. 1 is.
  • This training can be done by an appropriate Doping of the ceramic conductor 6 in the zone 15 or achieved by reducing the cross-section become.
  • Zone 15 has a low-resistance area 14 on the two ends of the heating resistor electrically with the connection area, i.e. the Power supply connections that connects at the In Fig. 1 illustrated embodiment of the metallic Hollow body 1 as a ground connection and a Screw or plug connection 3 are the same in the hollow body 1 on the opposite of the heating area 5 Side is arranged.
  • the ceramic Head 6 according to the usual manufacturing processes in the ceramic Insulator 7 sintered and by a mechanical Processing before or after the sintering process with contact surfaces 8 and 9 for ground contact and provide the plug contact.
  • the arrangement of the ceramic Head 6 and the formation of the contact areas 8 and 9 are such that the ceramic conductor 6 electrically on the one hand in the area of its end section with the metallic hollow body 1 to form the Ground contact and on the other hand at the other end section electrically connected to the connector 3 is.
  • the ground contact surface 9 can simultaneously as Serve sealing seat.
  • the contact surface 8 is with the Connector 3 in connection, for example can be designed as a round plug.
  • the contacting of the ceramic conductor 6 with the power supply connections, i.e. 1 with the metallic hollow body 1 and with the plug connector 3 is a pressure contact. That means that the contact at the contact surfaces 8 and 9 is pressurized. This can be achieved be that the heating element 2 pressure-tight over a Insulating ring 4 is installed in the hollow body 1, on the the edge 12 of the hollow body 1 is crimped, the preload achieved a pressure on the contact surfaces 8 and 9 results.
  • the preload can also by heating and axial Compression of the hollow body 1 achieved in the central region 13 or be increased.
  • the contacts additionally soldered or with a conductive adhesive or glued to a conductive putty.
  • Fig. 1 In the glow plug shown in Fig. 1 are for Improvement of the contact on the contact surfaces 8 and 9 contact parts in the form of metallic contact rings 10 and 11 provided with the ceramic Conductor 6 on the contact surfaces 8 and 9 mechanically and are electrically connected, for example by soldering.
  • These contact rings 10 and 11 can be made on the prefabricated Heating rod 2 are applied or with the ceramic Conductor 6 are connected before the ceramic Conductor with the contact rings 10, 11 completely in the ceramic insulator 7 is sintered.
  • the ceramic conductor 6 and the contact rings 10, 11 in the insulator 7 ensures that the ceramic conductor 6 on the the contacts diametrically opposite points against hollow bodies 1 or the connector 3 is isolated.
  • Fig. 2 shows an embodiment of the invention Glow plug, which is different from that shown in Fig. 1 Embodiment differs in that that it is a bipolar version compared to that in Fig. 1 shown single-pole version has.
  • contact parts as contact rings 10, 11 were formed in the one shown in FIG Exemplary embodiment individual contact pieces 17, 18 provided, each for contact with the corresponding arranged and formed first or second pole are.
  • the hollow body 1 is opposite the heating elements installed electrically insulated, the surface 21, which is located at the point in FIG. 1 the ground contact surface 9 is designed as pure Sealing surface serves.
  • the conductive ceramic of the ceramic conductor 6 therefor be ensured that the ceramic conductor 6 in some areas different resistance temperature coefficients has, i.e. that an area with positive resistance temperature coefficient arises so that the glow plug is self-regulating.
  • This self-regulating property can cover the whole area of the ceramic conductor 6 or only be provided over a partial area. Preferably this property is over area 14 available.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Spark Plugs (AREA)

Claims (8)

  1. Bougie à incandescence présentant un corps creux dans lequel est disposé un solide barreau céramique chauffant avec un élément céramique chauffant qui y est fritté, barreau qui dépasse axialement d'un côté du corps creux et dont l'élément chauffant est relié avec des bornes (1, 3) d'alimentation en courant et présente une zone chauffante (5), caractérisé par le fait que ce sont des parties de l'élément chauffant (6) elles-mêmes qui sont prévues comme surfaces de contact (8, 9) par l'intermédiaire desquelles l'élément chauffant (6) est en contact avec les bornes (1, 3) d'alimentation en courant, que les contacts de l'élément chauffant sont situés à l'extérieur de la zone chauffante (5) et que les contacts de l'élément chauffant sont obtenus sous contrainte de pression de ses surfaces de contact (8, 9) avec les bornes (1, 3) d'alimentation en courant.
  2. Bougie à incandescence selon la revendication 1, caractérisée par une bague d'isolation et d'étanchéité (4) qui est disposée, de l'autre côté, dans le corps creux (1) et au moyen de laquelle le bord (12) du corps creux (1) est serti de façon qu'apparaisse, selon la direction axiale, une précontrainte qui contraint en pression les surfaces de contact (8, 9).
  3. Bougie à incandescence selon la revendication 1, caractérisée par le fait qu'une précontrainte axiale qui met sous pression les surfaces de contact (8, 9) est produite par chauffage et rétreint axial du corps creux (1).
  4. Bougie à incandescence selon l'une des revendications précédentes, caractérisée par des pièces métalliques de contact (10, 11, 17, 18), qui sont prévues aux endroits de contact entre les surfaces de contact (8, 9) de l'élément chauffant (6) et les bornes d'alimentation en courant.
  5. Bougie à incandescence selon l'une des revendications précédentes, caractérisée par le fait que la surface de contact (8) pour la borne enfichable (3) est formée sur une portion d'extrémité du conducteur et que les surfaces de contact (9) pour la borne de masse sont formées en un endroit d'une zone de l'autre portion d'extrémité du conducteur qui se trouve dans le corps creux (1) constitué d'un matériau métallique, l'élément chauffant (6) étant disposé de façon telle, et la surface de contact (9) pour la borne de masse étant conçue de façon telle, qu'à cet endroit le contact de masse se fait avec le corps creux métallique (1).
  6. Bougie à incandescence selon l'une des revendications 1 à 5, caractérisée par le fait que le corps creux (1) est isolé par rapport à l'élément chauffant (6) et que la surface de contact pour la borne de masse est formée à l'autre extrémité de l'élément chauffant (6) et est reliée avec le pôle de masse (20) d'une fiche de borne bipolaire (3, 20).
  7. Bougie à incandescence selon l'une des revendications précédentes, caractérisée par le fait que l'élément chauffant (6) est un conducteur céramique.
  8. Bougie à incandescence selon la revendication 7, caractérisée par le fait que le conducteur céramique (6) est dopé, au moins partiellement, avec des différences de façon que se forment des zones à coefficient de température positif de la résistance et à coefficient de température négatif de la résistance.
EP94114747A 1993-10-15 1994-09-19 Bougie à incandescence Expired - Lifetime EP0648977B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE59402135.9T DE59402135C5 (de) 1993-10-15 1994-09-19 Glühkerze

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4335292A DE4335292A1 (de) 1993-10-15 1993-10-15 Glühkerze
DE4335292 1993-10-15

Publications (4)

Publication Number Publication Date
EP0648977A2 EP0648977A2 (fr) 1995-04-19
EP0648977A3 EP0648977A3 (fr) 1995-08-16
EP0648977B1 EP0648977B1 (fr) 1997-03-19
EP0648977B2 true EP0648977B2 (fr) 2001-11-21

Family

ID=6500295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114747A Expired - Lifetime EP0648977B2 (fr) 1993-10-15 1994-09-19 Bougie à incandescence

Country Status (6)

Country Link
US (1) US5589091A (fr)
EP (1) EP0648977B2 (fr)
JP (1) JP3712134B2 (fr)
AT (1) ATE150537T1 (fr)
DE (2) DE4335292A1 (fr)
ES (1) ES2101416T5 (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506950C2 (de) * 1995-02-28 1998-07-23 Bosch Gmbh Robert Glühstiftkerze für Dieselmotoren
US5676100A (en) * 1996-08-30 1997-10-14 Caterpillar Inc. Glow plug assembly
US5880432A (en) * 1996-12-23 1999-03-09 Le-Mark International Ltd. Electric heating device with ceramic heater wedgingly received within a metalic body
US6144015A (en) * 1998-09-25 2000-11-07 General Motors Corporation Glow sensor--ceramic flat plate
DE19914619A1 (de) * 1999-03-31 2000-10-12 Beru Ag Verfahren zum abdichtenden Verschließen des anschlußseitigen Endbereichs des Glührohres einer Glühkerze und Glühkerzen mit verfahrensgemäßem Verschluß
US6184497B1 (en) * 1999-06-16 2001-02-06 Le-Mark International Ltd. Multi-layer ceramic heater element and method of making same
US6084212A (en) * 1999-06-16 2000-07-04 Le-Mark International Ltd Multi-layer ceramic heater element and method of making same
DE19930334C2 (de) * 1999-07-02 2003-07-31 Beru Ag Keramischer Heizstab und diesen enthaltende Glühkerze und Verfahren zu dessen Herstellung
PL195123B1 (pl) * 1999-08-27 2007-08-31 Bosch Gmbh Robert Ceramiczna trzpieniowa świeca żarowa
ATE265023T1 (de) 1999-08-27 2004-05-15 Bosch Gmbh Robert Keramische glühstiftkerze
US6285008B1 (en) * 2000-01-11 2001-09-04 Federal-Mogul World Wide, Inc. Ignition plug and method of manufacture
DE10041282B4 (de) * 2000-08-22 2005-02-10 Beru Ag Verfahren zur Verbindung eines Heizstabes einer Glühkerze mit ihrem Glühkerzenkörper und eine entsprechende Glühkerze
US6346688B1 (en) * 2000-10-24 2002-02-12 O'donnell Steven B. Glow plug with crimp-secured washer and method
DE10053327C2 (de) * 2000-10-27 2003-04-10 Bosch Gmbh Robert Stiftheizer
US6342690B1 (en) * 2000-12-01 2002-01-29 O'donnell Steven B. Glow plug assembly method and construction
JP2002359060A (ja) * 2001-05-31 2002-12-13 Ngk Spark Plug Co Ltd ヒータ、及びヒータの製造方法
US6539905B1 (en) 2001-10-25 2003-04-01 International Engine Intellectual Property Company, L.L.C. Glow plug connection apparatus
DE10228077A1 (de) * 2002-06-20 2004-01-08 Friedrich-Schiller-Universität Jena Verfahren zur Herstellung einer mechanisch stabilen und elektrisch leitfähigen Verbindung zwischen einem metallischen Aufnahmeelement und einem vorzugsweise stiftförmigen keramischen Element, insbesondere bei Glühkerzen für Dieselmotoren
DE10339641A1 (de) * 2003-08-28 2005-03-24 Robert Bosch Gmbh Glühstiftkerze mit besonders eingebettetem Kontaktelement
US7115836B2 (en) * 2004-06-29 2006-10-03 Ngk Spark Plug Co., Ltd. Glow plug
DE102006016566B4 (de) * 2005-09-22 2008-06-12 Beru Ag Zusammengesetzter Leiter, insbesondere für Glühkerzen für Dieselmotoren
US8378273B2 (en) * 2008-02-20 2013-02-19 Ngk Spark Plug Co., Ltd. Ceramic heater and glow plug
DE102008035036B3 (de) * 2008-07-26 2010-04-15 Beru Ag Keramische Glühkerze
CN102224381B (zh) 2008-11-27 2013-10-16 博格华纳贝鲁系统有限责任公司 电热塞及其生产方法
KR101525634B1 (ko) * 2009-03-30 2015-06-03 엔지케이 인슐레이터 엘티디 세라믹 히터 및 그 제조 방법
EP2623866B1 (fr) * 2010-09-27 2018-06-13 Kyocera Corporation Élément chauffant et bougie de préchauffage le comportant
EP2626631B1 (fr) * 2010-10-05 2019-05-08 NGK Spark Plug Co., Ltd. Borne de bougie de préchauffage et bougie de préchauffage
DE102010062438A1 (de) * 2010-12-06 2012-06-06 Robert Bosch Gmbh Glühkerze und Verfahren zu deren Herstellung
JP5973222B2 (ja) * 2012-05-07 2016-08-23 日本特殊陶業株式会社 グロープラグ及びその製造方法
JP6088897B2 (ja) * 2013-04-19 2017-03-01 日本特殊陶業株式会社 グロープラグ
US9644532B2 (en) * 2015-04-14 2017-05-09 Sheldon J. Demmons Autonomous glow driver for radio controlled engines
CN105072718B (zh) 2015-08-21 2017-06-16 重庆利迈陶瓷技术有限公司 一种陶瓷电热体

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146653C2 (de) † 1981-02-07 1986-09-04 Robert Bosch Gmbh, 7000 Stuttgart Glühkerze für Brennkraftmaschinen

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FR2398969A1 (fr) * 1977-07-29 1979-02-23 Eyquem Bougie de chauffe pour demarrage de moteurs a allumage par compression
US4312120A (en) * 1980-05-22 1982-01-26 Bendix Autolite Corporation Glow plug manufacture
US4418661A (en) * 1981-02-07 1983-12-06 Robert Bosch Gmbh Glow plug, particularly for diesel engine
JPS5872821A (ja) * 1981-10-26 1983-04-30 Ngk Spark Plug Co Ltd グロ−プラグとその製法
US4582981A (en) * 1983-06-23 1986-04-15 Allied Corporation Glow plug having a resistive surface film heater
EP0194535A3 (fr) * 1985-03-15 1988-01-07 Allied Corporation Bougie à incandescence comprenant une résistance chauffante stratiforme d'une siliciure métallique
DE3701929A1 (de) * 1986-01-22 1987-08-13 Jidosha Kiki Co Gluehkerze fuer eine dieselmaschine
JPS62148869U (fr) * 1986-03-11 1987-09-19
DE3802233A1 (de) * 1987-01-22 1988-08-04 Jidosha Kiki Co Gluehkerze fuer einen dieselmotor
US5084607A (en) * 1989-07-28 1992-01-28 Caterpillar Inc. Interference connection between a heating element and body of a glow plug
DE4014356A1 (de) * 1990-05-04 1991-11-07 Beru Werk Ruprecht Gmbh Co A Gluehkerze
JPH04143518A (ja) * 1990-10-04 1992-05-18 Ngk Spark Plug Co Ltd 自己制御型セラミックグロープラグ
JP3044630B2 (ja) * 1991-02-06 2000-05-22 ボッシュ ブレーキ システム株式会社 セラミックヒータ型グロープラグ

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3146653C2 (de) † 1981-02-07 1986-09-04 Robert Bosch Gmbh, 7000 Stuttgart Glühkerze für Brennkraftmaschinen

Also Published As

Publication number Publication date
DE4335292A1 (de) 1995-04-20
ES2101416T5 (es) 2002-02-16
US5589091A (en) 1996-12-31
EP0648977B1 (fr) 1997-03-19
EP0648977A3 (fr) 1995-08-16
DE59402135C5 (de) 2014-07-24
ES2101416T3 (es) 1997-07-01
JPH07217880A (ja) 1995-08-18
DE59402135D1 (de) 1997-04-24
EP0648977A2 (fr) 1995-04-19
ATE150537T1 (de) 1997-04-15
JP3712134B2 (ja) 2005-11-02

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