EP0859437B1 - Verfahren zum Anbringen einer Masseelektrode am Zündkerzenkörper einer Zündkerze - Google Patents
Verfahren zum Anbringen einer Masseelektrode am Zündkerzenkörper einer Zündkerze Download PDFInfo
- Publication number
- EP0859437B1 EP0859437B1 EP98101913A EP98101913A EP0859437B1 EP 0859437 B1 EP0859437 B1 EP 0859437B1 EP 98101913 A EP98101913 A EP 98101913A EP 98101913 A EP98101913 A EP 98101913A EP 0859437 B1 EP0859437 B1 EP 0859437B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spark plug
- electrode
- ground electrode
- plug body
- earth electrode
- 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
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 3
- 230000005405 multipole Effects 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
Definitions
- the invention relates to a method for attaching a In the form of a ring electrode or in the form of multi-pole side electrodes trained ground electrode on the metallic spark plug body a spark plug with axially arranged in the spark plug body Center electrode.
- a method according to the preamble of the claim is from US-A-5,408,961 known.
- Spark plugs with axial in a metallic spark plug body arranged center electrode and a ground electrode, between them an ignition gap for the formation of an ignition spark form, are known per se and available on the market.
- ground electrode is centric, i.e. concentric is attached to the axis of the spark plug body, otherwise the electrode spacing is uneven along the circumference of the ground electrode would.
- the ground electrode by punching out a metallic Tape and prefabricated by appropriate shaping and then welded to the metallic spark plug body.
- the ground electrode must be inside and be deburred on the outside, while still having problems with the centric Punch out and centrically weld on the ground electrode occur on the spark plug body.
- These problems cause the ground electrode, especially at least the Drilling a ring electrode after attaching it to the spark plug body must be punched out to ensure the concentricity of the ground electrode especially the ring of the ring electrode to the axis of the spark plug body and thus a uniform electrode spacing ensure.
- the object underlying the invention is therefore in developing the method of the type mentioned at the beginning, that there is a re-punching of the ground electrode after it has been attached on the spark plug body.
- centering is designed as an open groove in the axial direction becomes, Welding cams on the prefabricated ground electrode and the ground electrode with the molded welding cams in the centering groove inserted in the spark plug body and welded to it.
- the method according to the invention is suitable for spark plugs with ring electrode or multiple ground electrodes, in particular for two-, three- and four-pole spark plugs.
- FIG. 1 is a partial sectional view of the electrode configuration a spark plug with a metallic spark plug body 1, in the center of a ceramic insulator 2 is arranged.
- the insulator 2 is above the front edge of the spark plug body 1 into the combustion chamber of the internal combustion engine in front.
- a center electrode 3 is provided, which together with a Ring electrode formed ground electrode 4 an ignition gap ZS for the formation of an ignition spark.
- the ground electrode 4 is electrically connected to and encloses the spark plug body 1 the entire circumference of the center electrode 3.
- ground electrode 4 formed as a ring electrode and the to ensure opposite end of the center electrode 3 it is necessary that the ground electrode 4 is exactly concentric to the axis of the spark plug or the spark plug body 1 on this is appropriate.
- spark plug body 1 to the axis of the spark plug body 1 and thus centering groove concentric with the axis of the center electrode 3 11 trained.
- the ground electrode 4 is, for example prefabricated by punching out of a metal band and attached their feet with sweat cams that are molded onto them become. The ground electrode 4 is then in with the welding cams the centering groove 11 provided in the spark plug body 1 is used and welded to it.
- centering groove 11 Due to the formation of the centering groove 11 is a precise and simple centering of the ground electrode 4 on the spark plug body 1 ensures that the ground electrode is complete can be prefabricated and re-punched after they have been attached on the spark plug body 1 is omitted.
- the welds on the prefabricated ground electrode 4 still do not have to be deburred, because welding cams on it are provided, the material of which is welded into the centering groove 11 flows.
- the above procedure involves fewer operations and leads due to the central assembly of the ground electrode 4 into one uniform electrode spacing and for uniform heat dissipation.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Spark Plugs (AREA)
Description
Claims (1)
- Verfahren zum Anbringen einer in Form einer Ringelektrode oder in Form von mehrpoligen Seitenelektroden ausgebildeten Masseelektrode an einem metallischen Zündkerzenkörper einer Zündkerze mit axial im Zündkerzenkörper angeordneter Mittelelektrode,
wobei im Zündkerzenkörper (1) eine zur Achse des Zündkerzenkörpers (1) konzentrische Zentrierung für die Masseelektrode (4) vorgesehen wird, dadurch gekennzeichnet, daßdie Zentrierung als in Axialrichtung offene Rille (11) ausgebildet wird,Schweißnocken an der vorgefertigten Masseelektrode angeformt werden unddie Masseelektrode mit den angeformten Schweißnocken in die Zentrierungsrille im Zündkerzenkörper eingesetzt und mit diesem verschweißt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19705373A DE19705373C2 (de) | 1997-02-12 | 1997-02-12 | Verfahren zum Anbringen einer Masseelektrode am Zündkerzenkörper einer Zündkerze |
DE19705373 | 1997-02-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0859437A1 EP0859437A1 (de) | 1998-08-19 |
EP0859437B1 true EP0859437B1 (de) | 2001-05-16 |
Family
ID=7820039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98101913A Expired - Lifetime EP0859437B1 (de) | 1997-02-12 | 1998-02-04 | Verfahren zum Anbringen einer Masseelektrode am Zündkerzenkörper einer Zündkerze |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0859437B1 (de) |
AT (1) | ATE201289T1 (de) |
DE (2) | DE19705373C2 (de) |
ES (1) | ES2157098T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6326719B1 (en) * | 1999-06-16 | 2001-12-04 | Alliedsignal Inc. | Spark plug shell having a bimetallic ground electrode spark plug incorporating the shell, and method of making same |
US6080029A (en) | 1999-08-05 | 2000-06-27 | Halo, Inc. | Method of manufacturing a spark plug with ground electrode concentrically disposed to a central electrode |
DE102006033578A1 (de) * | 2006-07-20 | 2008-01-31 | Beru Ag | Zündeinrichtung, insbesondere Zündkerze für eine Verbrennungskraftmaschine und Verfahren zur Positionierung von wenigstens einer Masseelektrode in der Zündeinrichtung |
DE102006041161A1 (de) * | 2006-09-01 | 2008-03-06 | Bayerische Motoren Werke Ag | Zündkerze für einen Wasserstoff-Verbrennungsmotor |
US10826279B1 (en) | 2019-08-28 | 2020-11-03 | Federal-Mogul Ignition Llc | Spark plug ground electrode configuration |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2360279A (en) * | 1942-04-22 | 1944-10-10 | Gen Motors Corp | Method of making spark plugs |
US2377481A (en) * | 1943-03-23 | 1945-06-05 | Robert K Christie | Method of gapping spark plugs |
US5408961A (en) * | 1993-08-09 | 1995-04-25 | Innovative Automative Technologies Int. Ltd. | Ignition plug |
-
1997
- 1997-02-12 DE DE19705373A patent/DE19705373C2/de not_active Expired - Fee Related
-
1998
- 1998-02-04 ES ES98101913T patent/ES2157098T3/es not_active Expired - Lifetime
- 1998-02-04 AT AT98101913T patent/ATE201289T1/de not_active IP Right Cessation
- 1998-02-04 EP EP98101913A patent/EP0859437B1/de not_active Expired - Lifetime
- 1998-02-04 DE DE59800707T patent/DE59800707D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19705373C2 (de) | 2000-02-03 |
EP0859437A1 (de) | 1998-08-19 |
DE59800707D1 (de) | 2001-06-21 |
ATE201289T1 (de) | 2001-06-15 |
ES2157098T3 (es) | 2001-08-01 |
DE19705373A1 (de) | 1998-08-20 |
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