EP1295067B1 - Glühstiftkerze - Google Patents
Glühstiftkerze Download PDFInfo
- Publication number
- EP1295067B1 EP1295067B1 EP01943162A EP01943162A EP1295067B1 EP 1295067 B1 EP1295067 B1 EP 1295067B1 EP 01943162 A EP01943162 A EP 01943162A EP 01943162 A EP01943162 A EP 01943162A EP 1295067 B1 EP1295067 B1 EP 1295067B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- layer
- heating element
- carrying layer
- glow plug
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 64
- 238000002485 combustion reaction Methods 0.000 claims description 42
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 20
- 229910016006 MoSi Inorganic materials 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229940125898 compound 5 Drugs 0.000 description 3
- 239000012777 electrically insulating material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polysiloxanes Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000548 poly(silane) polymer Polymers 0.000 description 1
- 229920001709 polysilazane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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 glow plug according to the invention with the features of independent claim has the advantage that at the end of the heating element remote from the combustion chamber There is a risk of short circuit. Another advantage is consider that the contact area between the first current-carrying layer and the contact element, which on end of the heating element remote from the combustion chamber is arranged, is enlarged. This reduces the Contact resistance, resulting in less heating of the Contact point leads. The risk of thermal destruction of the contact material between the heating element and the contact element is thus reduced. It is also advantageous that for Removal of one located on the rod-shaped heating element insulating layer in the area in which the Contact should be made to the power supply, an alignment of the rod-shaped heating element does not have to take place.
- the first is current-carrying layer 11 in the first section 21 as strong widened that the cross section of the first current-carrying Layer 11 in this section is the cross section of the Heating element corresponds.
- the design of this An exemplary embodiment can also be seen in FIG. 1.
- the cross section of the first current-carrying layer 11 ensures that the Contact area of the first current-carrying layer 11 to Contact element 31, which at the end remote from the combustion chamber Heating element is arranged, is enlarged. This increase the contact area leads to a reduction in Contact resistance and therefore not as strong Warming up this area.
- the lateral surface is a insulating layer 16 arranged, which preferably as Glass cover is formed.
- this insulating Layer 16 is interrupted or it is a contact layer 17 trained the contact between the second current-carrying layer 12 and the sealing compound 5 improved.
- This contact layer 17 can preferably be metallic Layer be formed.
- the insulating layer 18 made of the material from which the insulation layer 15 is made. So is one Manufacturing process that involves the manufacture of a Laminate between electrically insulating and contains electrically conductive ceramic layers, possible especially inexpensively, since all layers under Use of the same equipment and facilities can be produced. A process step that a Application of a chemically different layer, is saved.
- FIG. 4 is another embodiment of a Heating element of a glow plug according to the invention shown schematically.
- the heating element now points to a stepped pin 11 'on the end remote from the combustion chamber, which connects to the first current-carrying layer 11 and from the material of the first current-carrying layer 11 consists.
- This stepped pin is used for precise Placement of the contacting element 31 and the first Clamping sleeve 33, as also shown in FIG. 1 is.
- FIG. 5 is another embodiment Glow plug according to the invention schematically in longitudinal section shown. This focused on the combustion chamber end the glow plug is limited. It should be based on this Drawing are shown again that the Insulation layer 18 or the third section 23 from am End of the heating element adjacent to the combustion chamber to the edge of the housing 3 on the combustion chamber side extends. As already described with reference to FIG. 1, close at the end of the heating element away from the combustion chamber first clamping sleeve 33 and a contact element 31. In one preferred embodiment can be from the combustion chamber facing end face of the pin 11 'of the second Insulation layer 11 provided with a contact layer 17 be the contact between the first insulation layer 11 and contact element 31 improved.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Description
Claims (9)
- Glühstiftkerze zur Anordnung in einem Brennraum mit einem Gehäuse (3) und mit einem in einer konzentrischen Bohrung des Gehäuses angeordneten stabförmigen Heizelement, wobei das Heizelement eine erste stromführende Schicht (11) und eine zweite stromführende Schicht (12) aufweist, wobei die erste stromführende Schicht (11) und die zweite stromführende Schicht (12) am brennraumseitigen Ende des Heizelements über einen Leitschichtsteg (13) verbunden sind, wobei die erste stromführende Schicht (11) und die zweite stromführende Schicht (12) durch eine erste Isolationsschicht (15) getrennt sind, wobei die erste stromführende Schicht (11) und die zweite stromführende Schicht (12) unterschiedliche Längen aufweisen, dadurch gekennzeichnet, dass die erste stromführende Schicht (11) in einem ersten Abschnitt (21) am brennraumfernen Ende des Heizelements einen, bezogen auf ihre sonstige Länge, größeren Querschnitt aufweist und dass die zweite stromführende Schicht (12) in den ersten Abschnitt (21) nicht hineinragt.
- Glühstiftkerze nach Anspruch 1, dadurch gekennzeichnet, dass die erste stromführende Schicht (11) in dem ersten Abschnitt (21) einen Querschnitt aufweist, der dem Querschnitt des Heizelements entspricht.
- Glühstiftkerze nach Anspruch 2 dadurch gekennzeichnet, dass die erste Isolationsschicht (15) in einem zweiten Abschnitt (22) des Heizelements einen größeren Querschnitt aufweist als auf ihrer sonstigen Länge, wobei der zweite Abschnitt (22) sich in Richtung Brennraum an den ersten Abschnitt (21) anschließt und die zweite stromführende Schicht (12) in den zweiten Abschnitt (22) nicht hineinragt.
- Glühstiftkerze nach Anspruch 3, dadurch gekennzeichnet, dass das brennraumseitige Ende des zweiten Abschnitts (22) des Heizelements nicht am Übergang (19) zwischen einem Heizelement-Bund und einem Heizelement-Schaft angeordnet ist.
- Glühstiftkerze nach Anspruch 1, dadurch gekennzeichnet, dass die erste stromführende Schicht (11) auf der Länge eines dritten Abschnitts (23) des Heizelements von einer außen aufgebrachten zweiten Isolationsschicht (18) umgeben ist.
- Glühstiftkerze nach Anspruch 5, dadurch gekennzeichnet, dass sich der dritte Abschnitt (23) des Heizelements vom brennraumfernen Ende des Heizelements bis über das brennraumferne Ende des Gehäuses (3) hinaus erstreckt.
- Glühstiftkerze nach Anspruch 1, dadurch gekennzeichnet, dass die erste stromführende Schicht (11) am brennraumfernen Ende des ersten Abschnitts (21) des Heizelements einen stufenförmigen Zapfen (11') aufweist.
- Glühstiftkerze nach Anspruch 1, dadurch gekennzeichnet, dass die erste stromführende Schicht (11), die zweite stromführende Schicht (12) und der Leitschichtsteg (13) aus elektrisch leitendem keramischen Material und die erste Isolationsschicht (15) und die zweite Isolationsschicht (18) aus elektrisch isolierendem keramischen Material bestehen.
- Glühstiftkerze nach Anspruch 8, dadurch gekennzeichnet, dass die erste Isolationsschicht (15) und die zweite Isolationsschicht (18) aus dem gleichen elektrisch isolierenden keramischen Material bestehen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10030924A DE10030924A1 (de) | 2000-06-24 | 2000-06-24 | Glühstiftkerze |
DE10030924 | 2000-06-24 | ||
PCT/DE2001/002032 WO2002001112A1 (de) | 2000-06-24 | 2001-05-26 | Glühstiftkerze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1295067A1 EP1295067A1 (de) | 2003-03-26 |
EP1295067B1 true EP1295067B1 (de) | 2004-11-24 |
Family
ID=7646734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01943162A Expired - Lifetime EP1295067B1 (de) | 2000-06-24 | 2001-05-26 | Glühstiftkerze |
Country Status (10)
Country | Link |
---|---|
US (1) | US6727472B2 (de) |
EP (1) | EP1295067B1 (de) |
JP (1) | JP5038575B2 (de) |
CZ (1) | CZ2002546A3 (de) |
DE (2) | DE10030924A1 (de) |
ES (1) | ES2231507T3 (de) |
HU (1) | HU224593B1 (de) |
PL (1) | PL352576A1 (de) |
SK (1) | SK2342002A3 (de) |
WO (1) | WO2002001112A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005029837A1 (de) * | 2005-06-27 | 2007-01-04 | Robert Bosch Gmbh | Glühstiftkerze |
DE102006062309A1 (de) | 2006-12-27 | 2008-07-03 | Robert Bosch Gmbh | Glühstiftkerze |
US20100078421A1 (en) * | 2008-10-01 | 2010-04-01 | Federal-Mogul Italy Sr1 | Glow plug adn heater assembly therefor with an improved connection between a central electrode and a heater probe of the heater assembly |
DE102013215269A1 (de) | 2013-08-02 | 2015-02-05 | Robert Bosch Gmbh | Glühstiftkerze mit einem Heizelement mit innen liegender Kontaktierung, und Herstellungsverfahren derselben |
FR3025153B1 (fr) * | 2014-09-01 | 2016-12-09 | Bosch Gmbh Robert | Bougie de prechauffage |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE142714C (de) * | ||||
US4486651A (en) * | 1982-01-27 | 1984-12-04 | Nippon Soken, Inc. | Ceramic heater |
US4475029A (en) | 1982-03-02 | 1984-10-02 | Nippondenso Co., Ltd. | Ceramic heater |
JPS62141423A (ja) * | 1985-12-13 | 1987-06-24 | Jidosha Kiki Co Ltd | デイ−ゼルエンジン用グロ−プラグ |
DE3701929A1 (de) * | 1986-01-22 | 1987-08-13 | Jidosha Kiki Co | Gluehkerze fuer eine dieselmaschine |
JPS62148869U (de) * | 1986-03-11 | 1987-09-19 | ||
DE3924777A1 (de) * | 1988-07-26 | 1990-02-08 | Ngk Spark Plug Co | Keramische heizvorrichtung und verfahren zu deren herstellung |
DE3843863A1 (de) * | 1988-12-24 | 1990-06-28 | Bosch Gmbh Robert | Hochtemperatur-heizelement, verfahren zu seiner herstellung und verwendung desselben |
CH681186A5 (de) * | 1989-11-09 | 1993-01-29 | Battelle Memorial Institute | |
US5304778A (en) * | 1992-11-23 | 1994-04-19 | Electrofuel Manufacturing Co. | Glow plug with improved composite sintered silicon nitride ceramic heater |
US5750958A (en) * | 1993-09-20 | 1998-05-12 | Kyocera Corporation | Ceramic glow plug |
DE19506950C2 (de) * | 1995-02-28 | 1998-07-23 | Bosch Gmbh Robert | Glühstiftkerze für Dieselmotoren |
JP3801756B2 (ja) * | 1996-11-19 | 2006-07-26 | 日本特殊陶業株式会社 | セラミックグロープラグ |
JPH10208853A (ja) * | 1996-11-19 | 1998-08-07 | Ngk Spark Plug Co Ltd | セラミックヒータ、およびその製造方法 |
DE19930334C2 (de) * | 1999-07-02 | 2003-07-31 | Beru Ag | Keramischer Heizstab und diesen enthaltende Glühkerze und Verfahren zu dessen Herstellung |
-
2000
- 2000-06-24 DE DE10030924A patent/DE10030924A1/de not_active Withdrawn
-
2001
- 2001-05-26 DE DE50104622T patent/DE50104622D1/de not_active Expired - Lifetime
- 2001-05-26 SK SK234-2002A patent/SK2342002A3/sk unknown
- 2001-05-26 JP JP2002506004A patent/JP5038575B2/ja not_active Expired - Fee Related
- 2001-05-26 CZ CZ2002546A patent/CZ2002546A3/cs unknown
- 2001-05-26 HU HU0202427A patent/HU224593B1/hu not_active IP Right Cessation
- 2001-05-26 ES ES01943162T patent/ES2231507T3/es not_active Expired - Lifetime
- 2001-05-26 EP EP01943162A patent/EP1295067B1/de not_active Expired - Lifetime
- 2001-05-26 US US10/069,212 patent/US6727472B2/en not_active Expired - Fee Related
- 2001-05-26 PL PL01352576A patent/PL352576A1/xx unknown
- 2001-05-26 WO PCT/DE2001/002032 patent/WO2002001112A1/de not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US20030116553A1 (en) | 2003-06-26 |
PL352576A1 (en) | 2003-08-25 |
ES2231507T3 (es) | 2005-05-16 |
EP1295067A1 (de) | 2003-03-26 |
HUP0202427A2 (en) | 2002-12-28 |
HU224593B1 (hu) | 2005-11-28 |
CZ2002546A3 (cs) | 2002-10-16 |
DE50104622D1 (de) | 2004-12-30 |
JP5038575B2 (ja) | 2012-10-03 |
DE10030924A1 (de) | 2002-01-03 |
WO2002001112A1 (de) | 2002-01-03 |
SK2342002A3 (en) | 2002-10-08 |
JP2004502120A (ja) | 2004-01-22 |
US6727472B2 (en) | 2004-04-27 |
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Inventor name: DRESSLER, WOLFGANG Inventor name: MONDAL, PIA Inventor name: KERN, CHRISTOPH Inventor name: HOFFMANN, RUTH Inventor name: REISSNER, ANDREAS Inventor name: ENGEL, CHRISTINE Inventor name: SCHOTT, STEFFEN Inventor name: BOEDER, HORST |
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Inventor name: SCHOTT, STEFFEN Inventor name: MONDAL, PIA Inventor name: HOFFMANN, RUTH Inventor name: ENGEL, CHRISTINE Inventor name: KERN, CHRISTOPH Inventor name: REISSNER, ANDREAS Inventor name: DRESSLER, WOLFGANG Inventor name: BOEDER, HORST |
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