ATE50090T1 - PROCESS FOR MANUFACTURING A SPARK PLUG FOR COMBUSTION ENGINES. - Google Patents

PROCESS FOR MANUFACTURING A SPARK PLUG FOR COMBUSTION ENGINES.

Info

Publication number
ATE50090T1
ATE50090T1 AT85112350T AT85112350T ATE50090T1 AT E50090 T1 ATE50090 T1 AT E50090T1 AT 85112350 T AT85112350 T AT 85112350T AT 85112350 T AT85112350 T AT 85112350T AT E50090 T1 ATE50090 T1 AT E50090T1
Authority
AT
Austria
Prior art keywords
spark plug
combustion engines
manufacturing
collar
spark
Prior art date
Application number
AT85112350T
Other languages
German (de)
Inventor
Eliseo Longhi
Original Assignee
Magneti Marelli Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Magneti Marelli Spa filed Critical Magneti Marelli Spa
Application granted granted Critical
Publication of ATE50090T1 publication Critical patent/ATE50090T1/en

Links

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
    • 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
    • H01T13/00—Sparking plugs
    • H01T13/56—Sparking plugs characterised by having component parts which are easily assembled or disassembled

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spark Plugs (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

The spark plug is of a type in which the assembly of metal body (20) and ceramic insulation (10) is achieved by means of rimming the body. According to the invention, the finished body of the spark plug, including collar (24) of reduced thickness (s) is obtained by a pressing operation. Application : spark plugs for internal combustion engines, especially for motor vehicle engines. Advantages : the stamped body provided with a collar does not require any successive turning operation, hence production costs are reduced due to savings in labor and material.
AT85112350T 1984-11-07 1985-09-29 PROCESS FOR MANUFACTURING A SPARK PLUG FOR COMBUSTION ENGINES. ATE50090T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT23482/84A IT1178625B (en) 1984-11-07 1984-11-07 IGNITION SPARK PLUG FOR INTERNAL COMBUSTION ENGINES, PARTICULARLY OF MOTOR VEHICLES
EP85112350A EP0181476B1 (en) 1984-11-07 1985-09-29 Method and manufacturing a spark plug for internal combustion engines

Publications (1)

Publication Number Publication Date
ATE50090T1 true ATE50090T1 (en) 1990-02-15

Family

ID=11207486

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85112350T ATE50090T1 (en) 1984-11-07 1985-09-29 PROCESS FOR MANUFACTURING A SPARK PLUG FOR COMBUSTION ENGINES.

Country Status (6)

Country Link
EP (1) EP0181476B1 (en)
JP (1) JPS61118990A (en)
AT (1) ATE50090T1 (en)
DE (1) DE3575822D1 (en)
ES (1) ES8609834A1 (en)
IT (1) IT1178625B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5837858B2 (en) * 2012-06-06 2015-12-24 日本特殊陶業株式会社 Spark plug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570320A (en) * 1919-10-27 1926-01-19 Albert E Serewicz Spark plug and method of making same
DE433840C (en) * 1924-05-31 1926-09-07 Allg Elek Citaets Ges Fa Spark plug
US1662878A (en) * 1927-06-20 1928-03-20 George N Barcus Spark plug
CH317554A (en) * 1952-09-30 1956-11-30 Bosch Gmbh Robert Process for extrusion of hollow bodies
EP0071577A1 (en) * 1981-07-30 1983-02-09 ESPADA ANSTALT, Universal Marketing Spark plug

Also Published As

Publication number Publication date
EP0181476B1 (en) 1990-01-31
IT8423482A1 (en) 1986-05-07
IT8423482A0 (en) 1984-11-07
ES8609834A1 (en) 1986-09-01
EP0181476A1 (en) 1986-05-21
ES547590A0 (en) 1986-09-01
IT1178625B (en) 1987-09-09
JPS61118990A (en) 1986-06-06
DE3575822D1 (en) 1990-03-08

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee