EP1266179B1 - Glühstiftkerze für eine brennkraftmaschine - Google Patents
Glühstiftkerze für eine brennkraftmaschine Download PDFInfo
- Publication number
- EP1266179B1 EP1266179B1 EP01911365A EP01911365A EP1266179B1 EP 1266179 B1 EP1266179 B1 EP 1266179B1 EP 01911365 A EP01911365 A EP 01911365A EP 01911365 A EP01911365 A EP 01911365A EP 1266179 B1 EP1266179 B1 EP 1266179B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing element
- sealing
- pencil
- type heater
- longitudinal axis
- 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
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
-
- 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 is based on a glow plug after the Genus of the independent claim. It is already one Glow plug for an internal combustion engine with a metallic housing and a coaxially extending Connecting bolt known, the interior of the metallic Housing from the outside by means of a sealing element is sealed. Such a sealing element is after the State of the art as an O-ring or as a hose ring formed (for example, JP-A-09045464).
- the glow plug according to the invention with the features of independent claim has the advantage that when, due to high temperatures, a reduction of Preload in the area of the sealing element occurs, a additional security is achieved.
- the sealing element for the formation of two Sealing edges in cross-section circular areas has, which are arranged in pairs one above the other.
- One Such sealing element allows a linear Seal and a good adaptation of the shape of the sealing element to the space between the connecting bolt and the housing Glow plug.
- Another advantage is the cross section make the sealing element so that there are two superimposed having arranged rectangular areas.
- a Such seal ensures a flat seal by means of two superimposed sealing edges. It is it advantageous the corners of the rectangular areas To round off, since so the material of the seal can be saved can. Another material saving and a simpler Production can be achieved advantageously in that the cross section of the sealing element of two superimposed arranged second circular regions formed is.
- FIG. 1 shows a glow plug according to the invention shown schematically in longitudinal section.
- the glow plug has a metallic housing 3, which is radially symmetrical is and has a longitudinal axis 2.
- the metallic housing 3 is coaxial at the combustion chamber remote end
- Connection bolt 5 is arranged, the combustion chamber side with a Glow pin 7 is connected.
- This glow plug 7 is also arranged coaxially in the metallic housing 3.
- Such Shunt plug is such in an internal combustion engine arranged that the combustion chamber-side end of the glow plug. 7 protrudes into the combustion chamber.
- the connection pin 5 to the glow plug. 7 reaches, the combustion chamber end of the glow pin 7 heated so that the necessary temperature in the combustion chamber Ignition of a fuel mixture is achieved.
- glow plug further comprises an insulating 9th on, wherein the connecting pin 5 through the insulating 9th passed through.
- the insulating 9 is on Brennraumfernen end of the metallic housing 3 so between the metallic housing 3 and the connecting bolt. 5 arranged that the metallic housing 3 and the Connecting bolts 5 are electrically isolated from each other.
- the Insulating washer 9 is replaced by a via the connecting bolt guided round nut 11 fixed in position.
- a sealing element 13 which is annular and is formed extends over the entire circumference of the connecting bolt.
- the Sealing element 13 seals the interior of the metallic Housing 3 from the outside from.
- the sealing element 13 has two in the direction of the longitudinal axis 2 arranged one above the other Sealing edges on the outer surface 6 of the Abut the connecting bolt. Furthermore, the sealing element 13 at least two in the direction of the longitudinal axis 2 above the other arranged sealing edges, which on the inner surface. 4 of the housing. The at least two towards the Longitudinal axis 2 superimposed sealing edges of the Sealing element 13 ensure that at high Temperatures at which the bias of the components, at where the sealing element 13 is applied, decreases, a additional security is achieved.
- FIG. 2 An embodiment of a sealing element of a Glow plug according to the invention is shown in Figure 2 in Cross section shown schematically.
- the cross section of the Sealing element 13 has four circular areas 18th on, which are arranged in pairs next to each other.
- the couple the circular areas 18 are also in Direction longitudinal axis 2 arranged one above the other.
- Each circular region 18 has a sealing edge formed on the pair of circular Areas 18, which is at the top of the drawing, each a first sealing edge 15, 15 'and on the pair, the is in the drawing below, each a second Sealing edge 16, 16 '.
- FIG 3 is another embodiment of a Sealing element 13 of a glow plug according to the invention in Cross section shown schematically.
- the cross section of the Sealing element 13 is designed here such that two rectangular areas 20 in the direction of the longitudinal axis are arranged one above the other. In a preferred Embodiment, while the corners of the be rounded off rectangular areas.
- the sealing element 13 is a rather flat seal with each sealing edge 15 and 16 reached. The arrangement of the rectangular regions 20 one above the other makes sure that two sealing edges exist, the temperature-related reduction of Preload provide additional security.
- the sealing element 13 as in Figure 4 can be realized represented.
- FIG. 4 in turn, the Cross section of a sealing element of a device according to the invention Shunt plug shown schematically in cross section.
- the corners of the rectangular portion 20 rounded. So can be a combination of a linear and a flat seal can be achieved.
- the sealing element 13 can also be designed such that the two circular areas 18 above the rectangular Area 20 are arranged.
- FIG 5 is another embodiment of a Sealing element 13 of a glow plug according to the invention in Cross section shown schematically.
- Each circular area 23 has laterally inside (provided with the reference numerals 15 'and 16') and outside (provided with the reference numerals 15 and 16) sealing edges, which seal the Interior of the metallic housing 3 with respect to the Outdoor space.
- That as in Figure 5 shown trained sealing element 13 has in Particularly simple embodiment two in the direction of Longitudinal axis 2 superimposed sealing edges on the Inside and outside on that at Temperature-induced reduction of the bias voltage provide additional security.
- the Sealing element 13 should also be designed so that it more as two superimposed in the direction of the longitudinal axis Sealing edges, each on the inner surface 4 of the metallic housing 3 and on the outer surface 6 of the Abut connection pin 5, have.
- Such a thing Sealing element may, in addition to those with reference to Figure 2 to 5 described cross-sectional areas more pairs circular areas 18 and rectangular areas 20 or circular areas 23, which in Direction of the longitudinal axis 2 above or below in the Figures 2 to 5 illustrated cross-sectional areas are arranged.
- the Sealing element 13 also be designed such that the at least 2 superimposed sealing edges 15, 16 and 15 ', 16', as shown in Figure 6, in perpendicular to the Direction of the longitudinal axis 2 are shifted from each other.
- Analog is the sealing edge 15 'inwards shifted to the sealing edge 16 '.
- the sealing edges 15 and 16 or 15 'and 16' are still one above the other arranged.
- the rectangular area 20 the sealing edges 15 and 15 ' forms a greater extent in the direction perpendicular to the longitudinal axis than the rectangular area, the the sealing edges 16 and 16 'forms.
- the rectangular area 20, the sealing edges 15 and 15 ' forms a larger area than the rectangular one Area 20, which forms the sealing edges 16 and 16 '.
- Analogous can training from each other perpendicular to the longitudinal axis shifted sealing edges 15 and 16 or 15 'and 16' also with first and second circular areas or one Combination of rectangular areas and can be achieved in circular areas.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Gasket Seals (AREA)
- Spark Plugs (AREA)
Description
Claims (6)
- Glühstiftkerze für eine Brennkraftmaschine, mit einem Glühstift (7), einem zu diesem koaxial verlaufenden Anschlußbolzen (5) und mit einem ringförmigen Dichtelement (13), das mit wenigstens zwei Dichtkanten (15, 15', 16, 16')an einer äußeren Oberfläche (6) des Anschlußbolzens (5) anliegt, dadurch gekennzeichnet, dass die Glühstiftkerze ein metallisches Gehäuse (3) zur Fixierung der Glühstiftkerze an der Brennkraftmaschine aufweist, wobei in dem Gehäuse (3) an einem brennraumfernen Ende der Glühstiftkerze der Anschlußbolzen (5) angeordnet ist und das einerseits an dem Anschlußbolzen (5) anliegende Dichtelement (13) andererseits mit mindestens zwei Dichtkanten (15, 15', 16, 16') an einer inneren Oberfläche (4) des Gehäuses (3) anliegt.
- Glühstiftkerze nach Anspruch 1 dadurch gekennzeichnet, dass das Dichtelement (13) zur Ausbildung der mindestens zwei Dichtkanten (15,16 und 15'16') im Querschnitt mindestens vier kreisförmige Bereiche (18), paarweise übereinander in Richtung einer Längsachse (2) des metallischen Gehäuses angeordnet, aufweist.
- Glühstiftkerze nach Anspruch 1 dadurch gekennzeichnet, dass das Dichtelement (13) zur Ausbildung der mindestens zwei Dichtkanten (15,16 und 15'16') im Querschnitt mindestens zwei rechteckförmige Bereiche (20), übereinander in Richtung einer Längsachse (2) des metallischen Gehäuses angeordnet, aufweist.
- Glühstiftkerze nach Anspruch 1 dadurch gekennzeichnet, dass das Dichtelement (13) zur Ausbildung der mindestens zwei Dichtkanten (15,16 und 15'16') im Querschnitt mindestens zwei kreisförmige Bereiche (18), paarweise nebeneinander angeordnet, und mindestens einen rechteckförmigen Bereich (20) aufweist, wobei die mindestens zwei paarweise nebeneinander angeordneten kreisförmigen Bereiche (18) und der mindestens eine rechteckförmige Bereich (20) in Richtung einer Längsachse (2) des metallischen Gehäuses übereinander angeordnet sind.
- Glühstiftkerze nach Anspruch 3 oder 4 dadurch gekennzeichnet, dass die rechteckförmigen Bereiche (20) abgerundete Ecken aufweisen.
- Glühstiftkerze nach Anspruch 1 dadurch gekennzeichnet, dass das Dichtelement (13) zur Ausbildung der mindestens zwei Dichtkanten (15,16 und 15 '16') im Querschnitt mindestens zwei kreisförmige Bereiche (23), übereinander in Richtung einer Längsachse (2) des metallischen Gehäuses angeordnet, aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10012266A DE10012266A1 (de) | 2000-03-14 | 2000-03-14 | Glühstiftkerze für eine Brennkraftmaschine |
DE10012266 | 2000-03-14 | ||
PCT/DE2001/000198 WO2001069135A1 (de) | 2000-03-14 | 2001-01-18 | Glühstiftkerze für eine brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1266179A1 EP1266179A1 (de) | 2002-12-18 |
EP1266179B1 true EP1266179B1 (de) | 2005-03-09 |
Family
ID=7634597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01911365A Expired - Lifetime EP1266179B1 (de) | 2000-03-14 | 2001-01-18 | Glühstiftkerze für eine brennkraftmaschine |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1266179B1 (de) |
JP (1) | JP2003527557A (de) |
KR (1) | KR20020077534A (de) |
BR (1) | BR0109234A (de) |
CZ (1) | CZ20023021A3 (de) |
DE (2) | DE10012266A1 (de) |
ES (1) | ES2238427T3 (de) |
HU (1) | HU225190B1 (de) |
PL (1) | PL357593A1 (de) |
WO (1) | WO2001069135A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101342501B (zh) * | 2008-07-25 | 2011-11-16 | 宁波伊尔卡密封件有限公司 | 密封塞 |
JP5806211B2 (ja) * | 2011-01-25 | 2015-11-10 | 日本特殊陶業株式会社 | グロープラグ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8427789U1 (de) * | 1984-09-21 | 1986-01-23 | Robert Bosch Gmbh, 7000 Stuttgart | Glühstiftkerze für Brennkraftmaschinen |
IT235871Y1 (it) * | 1995-05-31 | 2000-07-18 | Cooper Ind Inc | Guarnizione oscillante e autopulente per una resistenza corazzata diuna candela di pre-riscaldo per motori diesel |
JP3207335B2 (ja) * | 1995-07-31 | 2001-09-10 | 日本特殊陶業株式会社 | グロープラグ |
-
2000
- 2000-03-14 DE DE10012266A patent/DE10012266A1/de not_active Withdrawn
-
2001
- 2001-01-18 KR KR1020027012000A patent/KR20020077534A/ko active IP Right Grant
- 2001-01-18 BR BR0109234-0A patent/BR0109234A/pt not_active IP Right Cessation
- 2001-01-18 WO PCT/DE2001/000198 patent/WO2001069135A1/de active IP Right Grant
- 2001-01-18 ES ES01911365T patent/ES2238427T3/es not_active Expired - Lifetime
- 2001-01-18 HU HU0204408A patent/HU225190B1/hu not_active IP Right Cessation
- 2001-01-18 JP JP2001567980A patent/JP2003527557A/ja active Pending
- 2001-01-18 DE DE50105537T patent/DE50105537D1/de not_active Expired - Lifetime
- 2001-01-18 CZ CZ20023021A patent/CZ20023021A3/cs unknown
- 2001-01-18 PL PL01357593A patent/PL357593A1/xx not_active IP Right Cessation
- 2001-01-18 EP EP01911365A patent/EP1266179B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2003527557A (ja) | 2003-09-16 |
KR20020077534A (ko) | 2002-10-11 |
CZ20023021A3 (cs) | 2003-05-14 |
HU225190B1 (en) | 2006-08-28 |
ES2238427T3 (es) | 2005-09-01 |
WO2001069135A1 (de) | 2001-09-20 |
DE50105537D1 (de) | 2005-04-14 |
PL357593A1 (en) | 2004-07-26 |
BR0109234A (pt) | 2003-06-03 |
DE10012266A1 (de) | 2001-09-20 |
EP1266179A1 (de) | 2002-12-18 |
HUP0204408A2 (en) | 2003-04-28 |
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