EP0560966B1 - Glühkerze - Google Patents
Glühkerze Download PDFInfo
- Publication number
- EP0560966B1 EP0560966B1 EP92921112A EP92921112A EP0560966B1 EP 0560966 B1 EP0560966 B1 EP 0560966B1 EP 92921112 A EP92921112 A EP 92921112A EP 92921112 A EP92921112 A EP 92921112A EP 0560966 B1 EP0560966 B1 EP 0560966B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- regulating
- heater plug
- coil
- plug according
- regulating coil
- 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 abstract description 18
- 239000000463 material Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- 239000010941 cobalt Substances 0.000 claims 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 1
- 229910000531 Co alloy Inorganic materials 0.000 claims 1
- 229910000640 Fe alloy Inorganic materials 0.000 claims 1
- 229910017052 cobalt Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229940056345 tums Drugs 0.000 claims 1
- 230000007704 transition Effects 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000011144 upstream manufacturing 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 invention relates to a glow plug according to the preamble of Claim 1.
- Such a glow plug is described, for example, in DE-A-39 11 831.
- This glow plug has a glow tube, in which a filament is arranged, which with one in one Candle housing arranged connecting bolt is connected.
- This Connection is made through a central hole in the glow tube side End of the connecting bolt, this bore is an internal thread has, in which the filament, which is on its connection side End section with a smaller than the rest of the coil Diameter is provided, screwed in a form-fitting manner can be.
- DE-A-3825 013 discloses a glow plug in the control coil is formed in two or more pieces, the one section from known helical material and the other Section is made of a material that has a certain resistance ratio, based on a temperature ratio, and a sudden change in resistance in a certain temperature range having. This will significantly shorten the heating-up time with sufficient glow plug service life enables.
- the glow plugs known from the prior art Genus have the disadvantage that in the case of continuous annealing or prolonged glow in the running engine, which leads to more environmentally friendly Exhaust gas leads to low stability to the usual requirements for the stability of glow plugs are enough.
- the object of the invention is to circumvent the in the state the disadvantages shown in the art, a glow plug is available to provide the high stability even after prolonged afterglow having; at the same time, the preheat time that can be achieved so far are practically adhered to, as well as mass production can be done in the usual way and economically as before.
- This object is achieved by the glow plug according to claim 1 solved. Further advantageous embodiments of the invention result result from the following claims 2 to 11.
- the present invention provides a glow plug a glow tube is available, in which a heating element in the tip is arranged upstream of which a control element is, which is also arranged in the glow tube, the Control element made of a conductive material with positive Temperature resistance coefficient exists, and where the Inner pole of the glow plug with the control element, the control element with the heating element and the heating element with the glow tube tip are connected in series, characterized in that that to minimize heat transfer between the control element and the inner pole of the helical region has a winding diameter has less than half the diameter of the turns is the rule spiral.
- the wire length of area 3 preferably corresponds to about 1/10 to about 1/20 of the total wire length of the variable resistor at room temperature.
- the length of this part is preferably greater than approximately 2.5 to 4 mm, particularly preferably it has at least four Turns up.
- the winding diameter in area 3 should be the lower one Limit approximately four times the standard wire size.
- the slope of this part 3 is equal to or greater than that double wire thickness.
- control spiral area 2 (with a larger one Diameter) in one piece.
- it can or be formed in several pieces, the sub-areas in each case made of different alloys with different temperature resistance coefficients can exist.
- the solution according to the invention is particularly advantageous in the case where control coils with high temperature-resistance coefficients are used, for example where Resistance ratio of resistance greater at 20 ° C / 1,000 ° C than about 7.5 (at> 12 it becomes extremely critical); especially This also applies to control coils made of materials that are not a continuous but a sudden increase in the Have resistance, such as in the applications DE-A-38 25 013 and 39 23 582 is described. Under these Circumstances of the glow plugs according to the invention are permanent or longer glow in the running engine is particularly suitable.
- the embodiment according to FIG. 1 has a conventional inner pole 4 on.
- This inner pole 4 is particularly preferably made of a material that conducts electricity and has poor thermal conductivity produced.
- An example is a steel with a higher Cr-Ni content called, which, like others, the average specialist on the Alloy area is easily accessible. Since he's additionally through its composition is protected against rust, the cable connection needs (M5, M4 thread) not, as often required, with Rust protection.
- the invention which is not shown, is therefore the Inner pole from a current conducting and the heat bad conductive material.
- the intermediate area 3 can be dispensed with (or with an intermediate area 3 together, heat dissipation can be reduced even further).
- Fig. 2 shows a glow plug design according to the invention, in which the glow plug pin according to FIG. 1 is installed.
- the transition region 3 and the inner pole 4 by one per se known "plug connection" 8 with additional caulking together connected.
- control coil (s) 2 are practically the same temperature over their entire length can heat up, and that neither the axially refluxing heat from the area of the heating coil 7 still radially from the / Control coil (s) of heat spreading to the glow tube non-uniformly deducted and sufficient heat dissipation to the inner pole is severely disabled.
- the transition area 3 is in the standard version Invention in one piece and made of the same material like the adjacent control spiral area 2. According to the inventive However, this area 3 can also be designed from another Material than that of the adjoining area of the Control coil 2, the material of this area 3 then Current conductivity, but have low thermal conductivity should; such material and alloys are known per se and can also be, for example, the materials that were previously with regard to the inner pole, if this is small Has thermal conductivity.
- the Glow tube diameter about 6 mm; the diameter of the control coil 2 is approximately 3.8 mm and the diameter of the transition region 3 about 1.8 mm with a control wire thickness of about 0.35 mm.
- the Overall length of the control wire is 200 to 220 mm, whereby the length of the control wire in area 3 is approximately 12 mm.
- the solution according to the invention leads to the surprising Result that the maximum temperature of the glow pencil tip or Heating coil itself, in which the regulation begins, is lowered is so that on the one hand the preheating time is practically not reduced, the service life under afterglow conditions, however, is clear is increased.
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
- 1
- Heizwendel
- 2
- Regelwendel(n)
- 3
- Übergangsteil
- 4
- Innenpol
- 5
- O-Ring
- 6
- Isoliermaterial
- 7
- Glührohr
- 8
- Steckanschluß (Verbindung Innenpol-Regelwendel)
Claims (11)
- Glühkerze mit einem Glührohr (7), in dem in der Spitze ein Heizelement (1) angeordnet ist, dem ein Regelelement (2) vorgeschaltet ist, das ebenfalls in dem Glührohr (7) angeordnet ist, wobei das Regelelement (2) aus einem stromleitenden Material mit positivem Temperatur-Widerstandskoeffizienten besteht, und wobei der Innenpol (4) der Glühkerze mit dem Regelelement (2), das Regelelement (2) mit dem Heizelement (1) und das Heizelement (1) mit der Glührohrspitze in Reihe verbunden sind, dadurch gekennzeichnet, daß
zur Minimierung des Wärmeübergangs zwischen Regelelement (2) und Innenpol (4) der Wendelbereich (3) einen Windungsdurchmesser aufweist, der kleiner als der halbe Durchmesser der Windungen des Regelelements (2) ist. - Glühkerze nach Anspruch 1, dadurch gekennzeichnet, daß die Drahtlänge des Bereichs (3) etwa 1/10 bis 1/20 der gesamten Drahtlänge des Regelwiderstandes bei Raumtemperatur entspricht.
- Glühkerze nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß der gewickelte Bereich (3) länger als 2,5 bis 4 mm ist.
- Glühkerze nach einem der vorherigen Ansprüche dadurch gekennzeichnet, daß der Windungsdurchmesser des Bereichs (3) gleich oder größer als die vierfache Drahtstärke der Regelwendel (2) ist.
- Glühkerze nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Innenpol (4) aus einem stromleitenden und die Wärme schlecht leitenden Material besteht.
- Glühkerze nach nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß zwischen Innenpol (4) und Regelwendel (2) ein stromleitendes, die Wärme schlecht leitendes Material in Draht- oder Stabform angeordnet ist.
- Glühkerze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Regelwendel (2) und Regelwendelbereich (3) einstückig ausgebildet sind.
- Glühkerze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Regelwendel (2) mindestens zweiteilig ausgebildet ist, wobei die einzelnen Teile der Regelwendel (2) aus verschiedenen Legierungen mit unterschiedlichen Temperatur-Widerstands-Koeffizienten bestehen.
- Glühkerze nach Anspruch 8, dadurch gekennzeichnet, daß für die Regelwendel (2) oder einen Teil der Regelwendel (2) ein Material verwendet wird, bei dem das Widerstandsverhältnis des Widerstandes bei 20°C/1.000°C größer als etwa 7,5 ist.
- Glühkerze nach Anspruch 9, dadurch gekennzeichnet, daß für die Regelwendel (2) oder einem Teil der Regelwendel (2) ein Material verwendet wird, bei dem das Widerstandsverhältnis des Widerstandes bei 20°C/1.000°C = 12 ist.
- Glühkerze nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß die Regelwendel (2) aus einer Kobalt/Eisenlegierung mit einem Eisengehalt von 20 bis 35 Gew.%, Rest Kobalt und wahlweise Nickel besteht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4133338 | 1991-10-08 | ||
DE4133338A DE4133338A1 (de) | 1991-10-08 | 1991-10-08 | Gluehkerze |
PCT/EP1992/002318 WO1993007423A1 (de) | 1991-10-08 | 1992-10-08 | Glühkerze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0560966A1 EP0560966A1 (de) | 1993-09-22 |
EP0560966B1 true EP0560966B1 (de) | 1998-07-08 |
Family
ID=6442278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92921112A Expired - Lifetime EP0560966B1 (de) | 1991-10-08 | 1992-10-08 | Glühkerze |
Country Status (6)
Country | Link |
---|---|
US (1) | US5521356A (de) |
EP (1) | EP0560966B1 (de) |
JP (1) | JP3243253B2 (de) |
DE (2) | DE4133338A1 (de) |
ES (1) | ES2118830T3 (de) |
WO (1) | WO1993007423A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4334771C2 (de) * | 1993-10-12 | 1996-03-28 | Beru Werk Ruprecht Gmbh Co A | Glühkerze |
US6037568A (en) * | 1996-01-18 | 2000-03-14 | Jidosha Kiki Co., Ltd. | Glow plug for diesel engine with ptc control element disposed in small-diameter sheath section and connected to the distal end thereof |
DE19630402C2 (de) * | 1996-07-26 | 2000-12-28 | Beru Ag | Stabflammglühkerze |
DE19755822A1 (de) * | 1997-12-16 | 1999-06-24 | Bosch Gmbh Robert | Glühstiftkerze |
DE19833862A1 (de) * | 1998-07-28 | 2000-02-03 | Bosch Gmbh Robert | Heizelement für Lambda-Sonden |
DE10041289B4 (de) * | 2000-08-22 | 2005-05-04 | Beru Ag | Glühkerze |
DE10117641C2 (de) * | 2001-04-09 | 2003-02-27 | Beru Ag | Stabglühkerze |
JP2002367760A (ja) * | 2001-06-11 | 2002-12-20 | Ngk Spark Plug Co Ltd | ヒータ及びグロープラグ |
DE10248802A1 (de) * | 2002-10-19 | 2004-04-29 | Robert Bosch Gmbh | Glühstiftkerze mit stark verkürzter Regelwendel |
US6878903B2 (en) * | 2003-04-16 | 2005-04-12 | Fleming Circle Associates, Llc | Glow plug |
US7332690B2 (en) * | 2003-09-05 | 2008-02-19 | Channel Products, Inc. | Hot wire igniter |
JP4510588B2 (ja) * | 2004-10-29 | 2010-07-28 | 日本特殊陶業株式会社 | グロープラグ |
GB0428297D0 (en) * | 2004-12-24 | 2005-01-26 | Heat Trace Ltd | Control of heating cable |
DE102008015402B3 (de) * | 2008-03-22 | 2009-10-22 | Beru Ag | Glühkerze |
US8022337B2 (en) * | 2008-06-10 | 2011-09-20 | Locust, Usa, Inc. | Ignitor plug assembly |
US9702556B2 (en) * | 2012-04-16 | 2017-07-11 | Ngk Spark Plug Co., Ltd. | Glow plug |
JP6279925B2 (ja) * | 2014-02-14 | 2018-02-14 | 日本特殊陶業株式会社 | グロープラグ |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2802625C3 (de) * | 1978-01-21 | 1985-07-18 | BERU Ruprecht GmbH & Co KG, 7140 Ludwigsburg | Glühkerze |
IT1175444B (it) * | 1984-03-09 | 1987-07-01 | Magneti Marelli Spa | Candela ad incandescenza per motori diesel per autoveicoli |
DE3502525C2 (de) * | 1985-01-25 | 1993-11-11 | Beru Werk Ruprecht Gmbh Co A | Glühelement |
JPS6217520A (ja) * | 1985-07-15 | 1987-01-26 | Ngk Spark Plug Co Ltd | 自己制御型グロ−プラグ |
GB2220446B (en) * | 1988-04-06 | 1992-05-27 | Champion Spark Plug Europ | Glow plug for internal combustion engine |
DE3825013A1 (de) * | 1988-07-22 | 1990-01-25 | Beru Werk Ruprecht Gmbh Co A | Gluehkerze |
JP2745225B2 (ja) * | 1989-02-15 | 1998-04-28 | 自動車機器株式会社 | デイーゼルエンジン用グロープラグ |
DE3911831A1 (de) * | 1989-04-11 | 1990-10-18 | Bosch Gmbh Robert | Starthilfevorrichtung fuer dieselmotoren, insbesondere gluehstiftkerze oder flammkerze |
JPH0814376B2 (ja) * | 1989-09-11 | 1996-02-14 | 自動車機器株式会社 | 自己温度制御型グロープラグ |
JPH03175210A (ja) * | 1989-09-11 | 1991-07-30 | Jidosha Kiki Co Ltd | セラミツクヒータ型グロープラグ |
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 |
DE9112507U1 (de) * | 1991-10-08 | 1992-03-26 | BERU Ruprecht GmbH & Co KG, 7140 Ludwigsburg | Glühkerze |
-
1991
- 1991-10-08 DE DE4133338A patent/DE4133338A1/de not_active Withdrawn
-
1992
- 1992-10-08 ES ES92921112T patent/ES2118830T3/es not_active Expired - Lifetime
- 1992-10-08 EP EP92921112A patent/EP0560966B1/de not_active Expired - Lifetime
- 1992-10-08 DE DE59209406T patent/DE59209406D1/de not_active Expired - Lifetime
- 1992-10-08 US US08/070,380 patent/US5521356A/en not_active Expired - Lifetime
- 1992-10-08 JP JP50662793A patent/JP3243253B2/ja not_active Expired - Lifetime
- 1992-10-08 WO PCT/EP1992/002318 patent/WO1993007423A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
JPH06503411A (ja) | 1994-04-14 |
DE4133338A1 (de) | 1993-04-15 |
WO1993007423A1 (de) | 1993-04-15 |
EP0560966A1 (de) | 1993-09-22 |
JP3243253B2 (ja) | 2002-01-07 |
US5521356A (en) | 1996-05-28 |
DE59209406D1 (de) | 1998-08-13 |
ES2118830T3 (es) | 1998-10-01 |
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