WO2000019148A1 - Keramische glühstiftkerze - Google Patents
Keramische glühstiftkerze Download PDFInfo
- Publication number
- WO2000019148A1 WO2000019148A1 PCT/DE1999/002877 DE9902877W WO0019148A1 WO 2000019148 A1 WO2000019148 A1 WO 2000019148A1 DE 9902877 W DE9902877 W DE 9902877W WO 0019148 A1 WO0019148 A1 WO 0019148A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ceramic
- glow plug
- ring
- heating device
- combustion chamber
- Prior art date
Links
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
-
- 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 ceramic glow plug for diesel engines according to the preamble of the main claim.
- a glow plug is already known from DE-OS 3 837 128, in which a ceramic heating device is held by the tip of a cylindrical holder. The ceramic heater is electrically isolated from the holder.
- a ceramic heating device is held by the tip of a cylindrical holder.
- the ceramic heater is electrically isolated from the holder.
- connection device which is contacted with the supply voltage.
- the ceramic heating device consists of a U-shaped heating section, the two ends of the U-shaped heating section being contacted with the connection device via wires or sintered connections.
- a voltage is applied to the ceramic heating device, so that a current flows from one end of the U-shaped heating section over the combustion chamber-side tip of the heating section to the other end of the U-shaped heating section.
- the current causes the heating section to heat up due to the resistance of the ceramic, so that it glows and the fuel-air mixture is heated for ignition.
- the ceramic glow plug according to the invention with the features of the main claim has the advantage that by inserting a ceramic sleeve and a ring in the candle housing, this is filled and thus more stable, and that a sealant that is located between the distant end of the candle housing and when mounting the glow plug the ceramic heater is well compressed.
- the pressure applied from the opening remote from the combustion chamber is well transmitted to the ceramic heating device via the ring and the ceramic sleeve, so that the desired seating of the ceramic heating device in the metal housing is well ensured.
- production becomes easier and therefore cheaper.
- a ceramic sleeve is arranged in the candle housing. At the same time, this provides good insulation of the inner conductor arrangement, which is guided centrally through the ceramic sleeve. Otherwise, the ceramic sleeve can rest directly on the ceramic heating device.
- a shock-insensitive ring for example a metal ring, has the advantage that when the glow plug is assembled, a selective pressure applied to the metal ring is distributed well over the metal ring over the entire surface of the ceramic sleeve and onto the end surface of the ceramic heater remote from the combustion chamber. Due to the flat distribution of the applied compression pressure, the stress on the ceramic is minimized.
- the figure shows a longitudinal section through a ceramic glow plug.
- the glow plug consists of a cylindrical tubular metal housing, which the
- the candle housing 10 Represents candle housing 10. At its end 11 on the combustion chamber side, the candle housing 10 comprises a ceramic heating device 12.
- This ceramic heating device 12 is a glow plug embodied as a ceramic layer composite, which consists of an insulating composite ceramic layer 13 which is between two electrically conductive
- Composite ceramic layers 14 is there. At the tip of the ceramic heating device, the two electrically conductive composite ceramic layers 14 are connected by a thin web made of electrically conductive composite ceramic, so that the electrically conductive composite ceramic layers 14 are arranged essentially in a U-shape.
- the ceramic heater 12 also referred to as a glow plug, points in its cylindrical candle housing
- the glow pencil or the Ceramic heater 12 is mounted in the cylindrical candle housing 10 so that a cavity 17 is formed between the inner wall of the tubular metal housing 11 and the outer wall of the ceramic heater 12 in the region of the smaller diameter, which is filled with an electrically conductive, compressible material 18.
- This electrically conductive material 18 can be, for example, graphite, a metal powder, a powder mixture of ceramic and conductive particles or a hollow cylinder wound from graphite foil.
- the glow pencil is covered at least in the area in which it is surrounded by the candle housing 10 with an insulating layer 20, this insulating layer being produced by means of glazing.
- the area in which this insulating layer 20 is applied is hatched in the figure for better identification.
- a first and a second cutout 21 and 22 are made in the insulating layer 20 for the contacting of the electrically conductive composite ceramic layers.
- the first recess 21 is located on the front end of the glow plug, in such a way that the connecting bolt is contacted with one leg of the U-shaped electrically conductive ceramic.
- the second electrical contact takes place on the lateral outer wall of the second leg of the U-shaped, electrically conductive ceramic.
- This second recess 22 contacts the candle housing via the sealing compound 18, as can be seen in the figure.
- the cutouts are indicated in the figure with a dark area.
- the electrically conductive sealing material 18 is first introduced into the candle housing 10 in the form of a preform from the combustion chamber opening. Then the ceramic Heater 12 used. A ceramic sleeve 19 and a metal ring 20 are connected to the ceramic heating device 12 in the candle housing 10, far from the combustion chamber. After these individual elements have been inserted into the tubular metal housing, the glow plug is pressed into the end 11 of the candle housing on the combustion chamber side by means of force and the sealing material 18 is compressed in the process. The volume 17 of the cavity 17 is reduced during the compression process. The housing is then closed by means of a sealing ring 23. The connecting bolt of the inner conductor arrangement is guided through a central opening of the sealing ring. After a definite setting of a defined pressing force, the ring can be connected by a material, non-positive or positive connection
- Caulking, welding, press connection, screwing, soldering or gluing can be fixed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000572618A JP2002525555A (ja) | 1998-09-28 | 1999-09-10 | シース形セラミックグロープラグ |
KR1020007005693A KR20010032452A (ko) | 1998-09-28 | 1999-09-10 | 세라믹 외장형 글로 플러그 |
EP99969782A EP1046013A1 (de) | 1998-09-28 | 1999-09-10 | Keramische glühstiftkerze |
US09/555,333 US6437492B1 (en) | 1998-09-28 | 1999-09-10 | Ceramic sheathed-type glow plug |
SK778-2000A SK7782000A3 (en) | 1998-09-28 | 1999-09-10 | Ceramic sheathed-type glow plug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19852785.3 | 1998-09-28 | ||
DE19852785A DE19852785A1 (de) | 1998-09-28 | 1998-09-28 | Keramische Glühstiftkerze |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000019148A1 true WO2000019148A1 (de) | 2000-04-06 |
Family
ID=7887952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/002877 WO2000019148A1 (de) | 1998-09-28 | 1999-09-10 | Keramische glühstiftkerze |
Country Status (7)
Country | Link |
---|---|
US (1) | US6437492B1 (de) |
EP (1) | EP1046013A1 (de) |
JP (1) | JP2002525555A (de) |
KR (1) | KR20010032452A (de) |
DE (1) | DE19852785A1 (de) |
SK (1) | SK7782000A3 (de) |
WO (1) | WO2000019148A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19844347A1 (de) * | 1998-09-28 | 2000-03-30 | Bosch Gmbh Robert | Keramische Glühstiftkerze |
DE19959768A1 (de) * | 1999-12-11 | 2001-06-13 | Bosch Gmbh Robert | Glühstiftkerze |
JP4068309B2 (ja) * | 2001-03-02 | 2008-03-26 | 日本特殊陶業株式会社 | ヒータ及びその製造方法 |
JP2003059624A (ja) * | 2001-08-10 | 2003-02-28 | Ngk Spark Plug Co Ltd | ヒータ |
DE10243017B4 (de) * | 2002-01-30 | 2013-08-22 | Robert Bosch Gmbh | Keramischer Verbundwerkstoff und Glühstiftkerze mit einem solchen Verbundwerkstoff |
DE10343521A1 (de) * | 2003-09-19 | 2005-04-21 | Beru Ag | Druckmessglühkerze für einen Dieselmotor |
DE102005017802A1 (de) * | 2005-04-18 | 2006-10-19 | Robert Bosch Gmbh | Glühstiftkerze mit Brennraumdrucksensor und Dichtelement |
DE102005061879A1 (de) * | 2005-12-23 | 2007-07-05 | Robert Bosch Gmbh | Glühstiftkerze |
US20090184101A1 (en) * | 2007-12-17 | 2009-07-23 | John Hoffman | Sheathed glow plug |
US8164241B2 (en) * | 2008-08-15 | 2012-04-24 | Federal Mogul Ignition Company | Extension-type spark plug |
DE102009028948A1 (de) * | 2009-08-27 | 2011-03-03 | Robert Bosch Gmbh | Glühkerze zum Einsatz in einem Verbrennungsmotor |
US9236700B2 (en) * | 2010-10-05 | 2016-01-12 | Ngk Spark Plug Co., Ltd. | Method for producing glow plug terminals, and method for producing glow plugs |
US9644532B2 (en) * | 2015-04-14 | 2017-05-09 | Sheldon J. Demmons | Autonomous glow driver for radio controlled engines |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3146653A1 (de) * | 1981-02-07 | 1982-10-14 | Robert Bosch Gmbh, 7000 Stuttgart | Gluehkerze fuer brennkraftmaschinen |
DE3817843A1 (de) * | 1987-05-29 | 1988-12-08 | Jidosha Kiki Co | Gluehkerze fuer dieselmotoren |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4418661A (en) * | 1981-02-07 | 1983-12-06 | Robert Bosch Gmbh | Glow plug, particularly for diesel engine |
DE3837128C2 (de) | 1987-11-05 | 1993-11-18 | Hitachi Metals Ltd | Glühkerze für Dieselmotoren |
US5304778A (en) * | 1992-11-23 | 1994-04-19 | Electrofuel Manufacturing Co. | Glow plug with improved composite sintered silicon nitride ceramic heater |
US6248980B1 (en) * | 1999-08-19 | 2001-06-19 | Delphi Technologies, Inc. | Ion sensor glow plug assembly |
-
1998
- 1998-09-28 DE DE19852785A patent/DE19852785A1/de not_active Withdrawn
-
1999
- 1999-09-10 US US09/555,333 patent/US6437492B1/en not_active Expired - Fee Related
- 1999-09-10 EP EP99969782A patent/EP1046013A1/de not_active Ceased
- 1999-09-10 SK SK778-2000A patent/SK7782000A3/sk unknown
- 1999-09-10 WO PCT/DE1999/002877 patent/WO2000019148A1/de not_active Application Discontinuation
- 1999-09-10 KR KR1020007005693A patent/KR20010032452A/ko not_active Application Discontinuation
- 1999-09-10 JP JP2000572618A patent/JP2002525555A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3146653A1 (de) * | 1981-02-07 | 1982-10-14 | Robert Bosch Gmbh, 7000 Stuttgart | Gluehkerze fuer brennkraftmaschinen |
DE3817843A1 (de) * | 1987-05-29 | 1988-12-08 | Jidosha Kiki Co | Gluehkerze fuer dieselmotoren |
Also Published As
Publication number | Publication date |
---|---|
DE19852785A1 (de) | 2000-03-30 |
KR20010032452A (ko) | 2001-04-25 |
EP1046013A1 (de) | 2000-10-25 |
JP2002525555A (ja) | 2002-08-13 |
SK7782000A3 (en) | 2000-10-09 |
US6437492B1 (en) | 2002-08-20 |
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