WO2003040625A1 - Elektrisch beheizbare glühkerze und verfahren zur herstellung einer elektrisch beheizbaren glühkerze - Google Patents
Elektrisch beheizbare glühkerze und verfahren zur herstellung einer elektrisch beheizbaren glühkerze Download PDFInfo
- Publication number
- WO2003040625A1 WO2003040625A1 PCT/DE2002/004096 DE0204096W WO03040625A1 WO 2003040625 A1 WO2003040625 A1 WO 2003040625A1 DE 0204096 W DE0204096 W DE 0204096W WO 03040625 A1 WO03040625 A1 WO 03040625A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating coil
- closure means
- glow tube
- combustion chamber
- glow
- 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
-
- 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
- F23Q2007/004—Manufacturing or assembling methods
Definitions
- the invention is based on an electrically heated glow plug and on a method for producing an electrically heated glow plug according to the type of the independent claims.
- an electrically heatable glow plug for internal combustion engines which comprises a glow plug which consists of a corrosion-resistant closed metal jacket, of a fill contained therein, of an electrically non-conductive, compressed powder and of an embedded in the fill, there is an electrically conductive heating coil and control coil. One end of the heating coil is welded in an electrically conductive manner to the tip of the metal jacket.
- the heating coil with several centering turns on the combustion chamber side. These are then inserted into a corresponding hole in the combustion chamber end of the glow tube. The heating coil is then welded directly to the glow tube at the end of the glow tube on the combustion chamber side, thus sealing the glow tube.
- a TIG welding process tungsten inert gas
- the disadvantage of this technique is that the number of turns of the heating coil welded to the glow tube is not defined. As a result, the resistance of the heating coil varies and thus both the heating characteristics and the temperature of the glow plug. If the heating coil and the glow tube are formed from different materials, there is a further disadvantage that two different materials are welded together at the end of the glow tube on the combustion chamber side. As a result, the glow tube and the heating coil lose their original properties due to the mixing of the two materials in the welding area. The glow tube can tear at this point during continuous operation of the glow plug. Then air gets into the glow tube. This leads to the oxidation of the heating coil material and the
- a rod glow plug which comprises a glow tube, an internal heating coil and optionally a control coil and a connecting pole leading into the glow tube.
- the coils are connected to the connection pole and the glow tube tip.
- a stabilizer bar is provided which extends in an assembly stage from the connection pole to the glow tube tip, optionally into an opening in the glow tube tip or through it.
- the stabilizer bar is arranged essentially centrally through the coils.
- the electrically heatable glow plug according to the invention and the method according to the invention for producing an electrically heatable glow plug with the features of the independent claims have the advantage that a closure means is provided which on the one hand closes the glow tube on the combustion chamber side and on the other hand carries the heating coil and only in the event that Heating coil protrudes by fastening the heating coil with the closure means over an inside of the heating coil, for which purpose the closure means in this case lies essentially over the entire length of its protrusion into the heating coil on the inside of the heating coil. In this way, the heating coil is not connected directly to the glow tube, but indirectly via the closure means. The process of closing the glow tube and the electrically conductive connection of the heating coil to the glow tube can thus be separated from one another.
- the glow tube is then closed independently of the heating coil by the closing means, so that the closing process of the glow tube has no influence on the resistance of the heating coil.
- This can be set much more precisely by a defined connection of the heating coil with the closure means, i.e. before the heating coil is inserted into the glow tube, but when connecting the heating coil to the closure means it is only dependent on the electrical contact between the heating coil and the closure means, but not depends on a sealing function.
- Another advantage is that a stabilizer bar is not required, so that material and assembly effort can be saved.
- a particularly precisely set resistance of the heating coil is obtained if the heating coil with the Closure means is connected by at least one defined welding point.
- a somewhat more stable connection between the heating coil and the closure means, with likewise high precision of the resistance of the heating spiral, is obtained if the heating coil is connected to the closure means by a continuous weld seam.
- a defined resistance of the heating coil can also be set by caulking the heating coil with the closure means, this connection technique being particularly inexpensive and at the same time saving material and energy.
- closure means is metallic, in particular made of the same material as the glow tube, is particularly advantageous. If the closure means is formed from the same material as the glow tube, different materials are not welded when the glow tube is closed, so that the glow tube is much more tear-resistant at this point during continuous operation of the glow plug. This has a positive effect on the
- the glow plug according to the invention thus has a significantly increased durability.
- the closure means is designed as a cap, which covers the glow tube on the combustion chamber side and which includes a highlight on the glow tube side, which receives the heating coil.
- the heating coil can be placed as far forward as possible in the area of the tip of the glow tube on the combustion chamber side, so that the point of highest heating reaches as close as possible to the tip of the glow tube.
- the closure means has a pin on the combustion chamber side which projects into an opening of the glow tube on the combustion chamber side and closes it, and if the closure means comprises a base on the glow tube side which receives the heating coil.
- the glow tube can be closed particularly easily, stably and permanently on the combustion chamber side.
- the base comprises a first projection on the glow tube side, which protrudes into the heating coil and rests against the inside of the heating coil on the end of the combustion chamber. In this way, the position of the heating coil is precisely defined.
- the base itself projects into the heating coil and rests against the inside of the heating coil at the end of the combustion chamber. In this way, the material for a glow tube-side projection on the base can be saved.
- FIG. 1 shows a first exemplary embodiment of a glow plug according to the invention
- FIG. 2 shows a second exemplary embodiment of a glow plug according to the invention
- FIG. 3 shows a third exemplary embodiment of a glow plug according to the invention
- Figure 4 shows a fourth embodiment of a glow plug according to the invention
- Figure 5 shows a fifth embodiment of a glow plug according to the invention.
- FIG. 1, 1 denotes a glow plug, which is designed as a glow plug and includes a plug body 85.
- the plug body 85 comprises a thread 90 for screwing into a cylinder head of an internal combustion engine.
- a glow tube 10 is pressed into the plug body 85 on the combustion chamber side.
- the glow tube 10 comprises a combustion chamber side
- the glow tube 10 projects into the combustion chamber 5 in the area of the heating coil 15 into a combustion chamber 5 of the cylinder head.
- the control coil 95 contacts a connecting bolt 100 which protrudes from the plug body 85 at the end remote from the combustion chamber and can be connected to a positive pole of the vehicle battery.
- the connecting bolt 100 and the glow tube 10 are sealed in the plug body 85 by a sealing ring 105 against environmental influences.
- the plug body 85 has a hexagon 110, with the aid of which the glow plug can be screwed into the cylinder head or unscrewed from the cylinder head using a twisting tool.
- a double seal 115 seals the inside of the candle body 85 at the end of the candle body 85 remote from the combustion chamber from environmental influences and a subsequent insulating washer 116 electrically isolates the candle body 85 from the connecting bolt 100.
- the sealing ring 105 also electrically isolates the connecting bolt 100 from the candle body 85.
- the sealing ring 105 and double seal 115 and the insulating washer 116 are formed, for example, from a plastic or elastomer.
- the double seal 115 and the insulating washer 116 are fixed via a round nut 117, alternatively a round plug.
- the round nut 117 or the round plug can be screwed and caulked or only caulked.
- Insulating powder filling for example made of magnesium oxide, is filled into the glow tube 10 and electrically insulates the heating coil 15 and the control coil 95 from the glow tube 10.
- the end side of the glow tube 10 on the combustion chamber side is identified in FIG. 1 by the reference number 20.
- the glow tube 10 is tubular and is closed off from the combustion chamber by the connecting bolt 100 and the sealing ring 105.
- the glow tube 10 is on the combustion chamber side
- the closure means 25 carries the heating coil 15.
- the glow tube 10 is made of metal.
- the closure means 25 is also metallic.
- the closure means 25 and the glow tube 10 can be formed from the same material.
- the connection between the closure means 25 and the glow tube 10 can be realized, for example, by a welded connection.
- the plug body 85 is also metallic. In this way, the closure means 25, the glow tube 10 and the
- Plug body 85 electrically a reference potential, for example the vehicle mass. If the connecting pin 100 is connected to the positive pole of the vehicle battery, a current flows through the connecting pin 100 through the control coil 95 and the heating coil 15 to the vehicle ground. As a result, the heating coil 15 is heated up and heats the glow tube 10 in the combustion chamber 5 in order to initiate the combustion process.
- the material of the control coil 95 is formed from a material with a resistance which has a positive temperature coefficient, for example from a cobalt-iron alloy.
- the heating coil 15 is formed from a material which comprises an electrical resistance that is as temperature-independent as possible.
- the heating coil 15 can be formed, for example, from an iron-chromium-aluminum alloy.
- Closure means 25 is an electrically conductive connection guaranteed between the heating coil 15 and the closure means 25.
- the heating coil 15 can be connected to the closure means 25 by one or more welding spots. Alternatively, the heating coil 15 can be connected to the closure means 25 by a continuous weld. Again alternatively, the heating coil 15 can be connected to the closure means 25 by caulking. In all three cases it is possible to have a precisely defined number of
- the heating coil 15 is not connected directly to the glow tube 10 but indirectly via the closure means 25. In the welded connection between the closure means 25 and the glow tube 10, there are therefore no portions of the heating coil 15.
- the glow plug 1 Since the welded connection between the closure means 25 and the glow tube 10 does not contain any parts of the heating coil 15, it is less susceptible to nitridation and corrosion, so that no cracks can occur in the area of this welded connection, which in turn lead to the penetration of air and gas into the interior of the Glow tube 10 and thus also lead to the heating coil 15 and the control coil 95. Thus, the glow plug 1 is considerably more durable and has a precisely defined resistance of the heating coil 15.
- the closure means 25 can of course also consist of a different material than the glow tube 10. However, it should not include the material of the heating coil 15 in order to prevent the described susceptibility to corrosion and nitridation in the welded connection between the closure means 25 and the glow tube 10.
- the weld connection between the closure means 25 and the glow tube 10 can be realized, for example, by a TIG welding process (tungsten inert gas).
- TIG welding process tungsten inert gas
- the closure means 25 is designed as a cap which completely covers the glow tube 10 on the combustion chamber side.
- the closure means 25 comprises a highlight 30, for example in the form of one or more pins or a continuous ring. With its outer side 35, the highlight 30 bears against an inner wall 40 of the glow tube 10. On its inside 45, the highlight 30 receives the heating coil 15. For this purpose, it is already sufficient if the heating coil 15 with its last winding facing the combustion chamber 5 into the
- Highlight 30 is pinched, which is particularly well possible when using an annular highlight.
- this winding of the heating coil 15 can also be highlighted 30 by means of a continuous weld seam or individual, small, defined weld spots, for example under
- the heating coil 15 is connected in the manner described on the combustion chamber side to the closure means 25 and then inserted into the glow tube 10 in the direction of the arrow from the end of the glow tube 10 on the combustion chamber side together with the closure means 25 and the control coil 95 attached to the end of the heating coil 15 remote from the combustion chamber until that Closure means 25 comes to rest on the combustion chamber end of the glow tube 10. Subsequently, the closure means 25 is connected to the glow tube 10, for example by welding.
- the heating coil 15 and the regulating turn 95 at the end of the glow tube 10 remote from the combustion chamber can be held centrally with respect to the glow tube 10 by a suitable holding device. In this way, contacting of the heating coil 15 and the control coil 95 with the glow tube 10 is avoided and a central connection of the connecting bolt 100 to the control coil 95 is made possible.
- these two parts can be rotated through 360 degrees in order to achieve a uniform weld seam.
- the glow plug 1 of the invention is shown in a longitudinal section.
- the closure means 25 and the glow tube 10 can be designed to be rotationally symmetrical.
- FIG. 2 shows a second exemplary embodiment of the glow plug 1 according to the invention, the same reference numerals identifying the same elements as in FIG. 1.
- FIG. 2 shows only a section of the glow tube 10 on the combustion chamber side again shown as a longitudinal section.
- the second exemplary embodiment according to FIG. 1 the second
- the glow tube 10 on its combustion chamber end 20 not completely open, but only has a comparatively small opening
- the bore is approximately at the tip of the combustion chamber
- the closure means 25 is designed as a plug which has a pin 50 on the combustion chamber side.
- the pin 50 protrudes into the combustion chamber opening 55 of the glow tube 10 and closes it completely.
- the closure means 25 comprises a base 60, the diameter of which is larger than the diameter of the opening 55 and which receives the heating coil 15.
- the heating coil 15 is first connected to the control coil 95 on the one hand and to the closure means 25 on the other hand.
- the control coil 95 is also remote from the combustion chamber and, as shown in FIG. 1, caulked with the connecting bolt 100.
- the arrangement thus formed is then introduced into the glow tube 10 via the opening of the glow tube 10 remote from the combustion chamber in the direction of the arrow in FIG. 2, with the closure means 25, until the pin 50 of the closure means 25 protrudes into the opening 55 of the glow tube 10. Then the pin 50 of the
- the glow tube can be rotated 360 degrees with the pin 50 of the closure means 25 inserted into the opening 55 during the welding process.
- the TIG welding process can be used again.
- This principle of fastening the closure means 25 with the glow tube 10 is also based on further exemplary embodiments which are described below. They differ only in the way in which the heating coil 15 is accommodated by the base 60.
- the base 60 comprises a first projection 65 which projects into the heating coil 15 and rests on the inside 70 of the heating coil 15 at the end of the combustion chamber , 2, again only the last turn of the heating coil 15 with the first projection 65 on the combustion chamber side connected.
- the base 60 has a larger one
- Closure means 25 and the glow tube 10 a portion of the heating coil material is included. A direct connection between the heating coil 15 and the glow tube 10 is avoided in this way, so that there are the associated advantages already mentioned.
- the material for the closure means 25 can be selected in accordance with the first exemplary embodiment according to FIG. 1.
- the heating coil 15 can be connected to the closure means 25 by one or more welding points, by a continuous weld seam or by crimping the end of the heating coil 15 on the combustion chamber side with the first projection 65.
- connection for example only the last turn of the heating coil 15 on the combustion chamber side with the closure means 25, and thus a precisely defined resistance of the heating coil 15 can be realized.
- connection can also comprise more than one turn of the heating coil 15, but in any case a precisely defined number of turns, which can be precisely specified and implemented.
- a thread can be provided on the first projection for screwing on the heating coil 15.
- FIG. 3 shows a third exemplary embodiment, in which the same reference numerals designate the same elements as in the previous exemplary embodiments.
- the connection of the closure means 25 to the glow tube 10 in the third exemplary embodiment is the same as in the second exemplary embodiment according to FIG. 2.
- the only difference is the inclusion of the heating coil 15 by the base 60.
- the base 60 comprises one on the glow tube side second projection 75, which surrounds the heating coil 15 at its combustion chamber end on its outside 80 on a defined number of turns. In this way, the heating coil 15 can be accommodated in the same way as in the first exemplary embodiment according to FIG.
- Closure means 25 the diameter of which is greater than the diameter of the heating coil 15 and which surrounds the heating coil 15 through the second projection 75.
- the second projection 75 can be designed in a manner corresponding to the highlight 30 of the first exemplary embodiment according to FIG. 1.
- FIG. 4 shows a fourth exemplary embodiment of the invention, in which again the same reference numerals identify the same elements as in the previous figures.
- the connection between the closure means 25 and the glow tube 10 is realized in the same way as in the second exemplary embodiment according to FIG. 2.
- the only difference is that the heating coil 15 is received by the base 60.
- the diameter of the base 60 is the same as in the case of the base 60 second and third exemplary embodiment larger than the diameter of the pin 50, so that the base 60 completely extends beyond the pin 50 on the glow tube side.
- the base 60 itself protrudes into the heating coil 15 and rests against the inside 70 of the heating coil 15 at the end of the combustion chamber.
- the base 60 in the fourth exemplary embodiment thus takes over the function of the first projection 65 in the second exemplary embodiment, so that a projection for accommodating the heating coil 15 can be saved.
- the last turn of the heating coil 15 on the combustion chamber side comes to lie on the glow tube 10, but outside of the opening 55 with the pin 50, so that when the pin 50 is welded to the glow tube 10 in the opening 55, no material of the heating coil 15 comes into the welded joint incoming and the heating coil 15 in this way by the
- the heating coil 15 can be arranged as far as possible in the region of the tip of the glow tube 10, so that the point of greatest heating of the glow tube 10 projects as far as possible into the combustion chamber 5.
- FIG. 5 shows a fifth exemplary embodiment, in which the same reference numerals again designate the same elements as in the previous exemplary embodiments.
- the connection between the closure means 25 and the glow tube 10 is the same as in the second exemplary embodiment according to FIG. 2 and only the accommodation of the heating coil 15 by the base 60 is solved differently.
- the heating coil 15 rests only on the base 60 on the glow tube side, and is therefore separated from the connection between the pin 50 and the glow tube 10 by the base 60, which is larger in cross section than the pin 50, so that when connecting of the pin 50 with the glow tube 10 by welding no portion of the heating coil material can get into this connection.
- connection between the heating coil 15 and the base 60 now takes place on the last turn of the heating coil 15 on the combustion chamber side again by means of one or more welding points or a continuous weld seam.
- the resistance of the heating coil 15 can be set to a defined, predetermined value.
- the closure means 25 protrudes just in case
- Heating coil 15 into which the heating coil is attached 15 with the closure means 25 takes place over the inside 70 of the heating coil 15, for which purpose the closing means 25 in this case rests against the inside 70 of the heating coil 15 essentially over the entire length of its protrusion into the heating coil 15.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02782761A EP1444464A1 (de) | 2001-11-07 | 2002-11-05 | Elektrisch beheizbare glühkerze und verfahren zur herstellung einer elektrisch beheizbaren glühkerze |
HU0302215A HUP0302215A2 (hu) | 2001-11-07 | 2002-11-05 | Elektromosan fűthető izzítógyertya, és eljárás annak előállítására |
JP2003542840A JP2005509124A (ja) | 2001-11-07 | 2002-11-05 | 電気加熱式のグロープラグ並びに電気加熱式のグロープラグを製造する方法 |
US10/250,757 US20040084435A1 (en) | 2001-11-07 | 2002-11-05 | Electrically-heated glowplug and method for production of an electrically-heated glowplug |
KR10-2004-7006844A KR20040060972A (ko) | 2001-11-07 | 2002-11-05 | 전기로 가열될 수 있는 글로 플러그 및 그 제조방법 |
US11/120,566 US20050194369A1 (en) | 2001-07-11 | 2005-05-02 | Electrically heatable glow plug and method for manufacturing an electrically heatable glow plug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10154641.6 | 2001-11-07 | ||
DE10154641A DE10154641A1 (de) | 2001-11-07 | 2001-11-07 | Elektronisch beheizbare Glühkerze und Verfahren zur Herstellung einer elektrisch beheizbaren Glühkerze |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/120,566 Continuation US20050194369A1 (en) | 2001-07-11 | 2005-05-02 | Electrically heatable glow plug and method for manufacturing an electrically heatable glow plug |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003040625A1 true WO2003040625A1 (de) | 2003-05-15 |
Family
ID=7704888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/004096 WO2003040625A1 (de) | 2001-07-11 | 2002-11-05 | Elektrisch beheizbare glühkerze und verfahren zur herstellung einer elektrisch beheizbaren glühkerze |
Country Status (9)
Country | Link |
---|---|
US (2) | US20040084435A1 (de) |
EP (1) | EP1444464A1 (de) |
JP (1) | JP2005509124A (de) |
KR (1) | KR20040060972A (de) |
DE (1) | DE10154641A1 (de) |
HU (1) | HUP0302215A2 (de) |
PL (1) | PL368868A1 (de) |
TW (1) | TW200301341A (de) |
WO (1) | WO2003040625A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010003727A1 (de) * | 2008-07-11 | 2010-01-14 | Robert Bosch Gmbh | Glührohr, insbesondere für eine glühstiftkerze |
WO2019048195A1 (de) * | 2017-09-11 | 2019-03-14 | Robert Bosch Gmbh | Verfahren zur herstellung einer glühstiftkerze |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080160470A1 (en) * | 2006-12-01 | 2008-07-03 | Mark Holtan | Igniter for furnace |
KR200446448Y1 (ko) * | 2007-12-20 | 2009-10-30 | 고수영 | 히팅코일단부 고정부재 |
KR101316879B1 (ko) * | 2012-04-09 | 2013-10-08 | 현대자동차주식회사 | 전자식 서모스탯 |
WO2013157223A1 (ja) * | 2012-04-16 | 2013-10-24 | 日本特殊陶業株式会社 | グロープラグ |
DE102014220036A1 (de) * | 2014-10-02 | 2016-04-07 | Robert Bosch Gmbh | Glühstiftkerze |
JP6795886B2 (ja) * | 2015-02-10 | 2020-12-02 | 日本特殊陶業株式会社 | グロープラグ及びその製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB859659A (en) * | 1958-06-07 | 1961-01-25 | Bosch Gmbh Robert | Improvements in glow plugs for internal combustion engines |
US3158787A (en) * | 1960-06-28 | 1964-11-24 | Magneti Marelli Spa | Glow plugs equipped with armoured resistances |
JPS5821A (ja) * | 1981-06-24 | 1983-01-05 | Ngk Spark Plug Co Ltd | シ−ズ型グロ−プラグのシ−ズチユ−ブ先端部の溶接方法 |
DE19756988C1 (de) | 1997-12-20 | 1999-09-02 | Daimler Benz Ag | Elektrisch beheizbare Glühkerze oder Glühstab für Verbrennungsmotoren |
EP1030111A1 (de) | 1999-02-19 | 2000-08-23 | Beru AG | Stabglühkerze |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4288850B2 (ja) * | 2000-03-17 | 2009-07-01 | 株式会社デンソー | グロープラグの製造方法 |
DE10041289B4 (de) * | 2000-08-22 | 2005-05-04 | Beru Ag | Glühkerze |
-
2001
- 2001-11-07 DE DE10154641A patent/DE10154641A1/de not_active Ceased
-
2002
- 2002-11-05 KR KR10-2004-7006844A patent/KR20040060972A/ko not_active Application Discontinuation
- 2002-11-05 HU HU0302215A patent/HUP0302215A2/hu unknown
- 2002-11-05 JP JP2003542840A patent/JP2005509124A/ja not_active Abandoned
- 2002-11-05 PL PL02368868A patent/PL368868A1/xx not_active Application Discontinuation
- 2002-11-05 TW TW091132563A patent/TW200301341A/zh unknown
- 2002-11-05 US US10/250,757 patent/US20040084435A1/en not_active Abandoned
- 2002-11-05 WO PCT/DE2002/004096 patent/WO2003040625A1/de not_active Application Discontinuation
- 2002-11-05 EP EP02782761A patent/EP1444464A1/de not_active Withdrawn
-
2005
- 2005-05-02 US US11/120,566 patent/US20050194369A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB859659A (en) * | 1958-06-07 | 1961-01-25 | Bosch Gmbh Robert | Improvements in glow plugs for internal combustion engines |
US3158787A (en) * | 1960-06-28 | 1964-11-24 | Magneti Marelli Spa | Glow plugs equipped with armoured resistances |
JPS5821A (ja) * | 1981-06-24 | 1983-01-05 | Ngk Spark Plug Co Ltd | シ−ズ型グロ−プラグのシ−ズチユ−ブ先端部の溶接方法 |
DE19756988C1 (de) | 1997-12-20 | 1999-09-02 | Daimler Benz Ag | Elektrisch beheizbare Glühkerze oder Glühstab für Verbrennungsmotoren |
EP1030111A1 (de) | 1999-02-19 | 2000-08-23 | Beru AG | Stabglühkerze |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 071 (M - 202) 24 March 1983 (1983-03-24) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010003727A1 (de) * | 2008-07-11 | 2010-01-14 | Robert Bosch Gmbh | Glührohr, insbesondere für eine glühstiftkerze |
WO2019048195A1 (de) * | 2017-09-11 | 2019-03-14 | Robert Bosch Gmbh | Verfahren zur herstellung einer glühstiftkerze |
Also Published As
Publication number | Publication date |
---|---|
DE10154641A1 (de) | 2003-05-22 |
US20050194369A1 (en) | 2005-09-08 |
TW200301341A (en) | 2003-07-01 |
HUP0302215A2 (hu) | 2005-11-28 |
US20040084435A1 (en) | 2004-05-06 |
KR20040060972A (ko) | 2004-07-06 |
EP1444464A1 (de) | 2004-08-11 |
JP2005509124A (ja) | 2005-04-07 |
PL368868A1 (en) | 2005-04-04 |
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