FR868622A - spark plug middle electrode - Google Patents

spark plug middle electrode

Info

Publication number
FR868622A
FR868622A FR868622DA FR868622A FR 868622 A FR868622 A FR 868622A FR 868622D A FR868622D A FR 868622DA FR 868622 A FR868622 A FR 868622A
Authority
FR
France
Prior art keywords
spark plug
middle electrode
plug middle
electrode
spark
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of FR868622A publication Critical patent/FR868622A/en
Expired legal-status Critical Current

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
    • H01T13/00—Sparking plugs
    • H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
    • H01T13/39—Selection of materials for electrodes
FR868622D 1939-02-17 1940-12-30 spark plug middle electrode Expired FR868622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE868622X 1939-02-17

Publications (1)

Publication Number Publication Date
FR868622A true FR868622A (en) 1942-01-09

Family

ID=6802509

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868622D Expired FR868622A (en) 1939-02-17 1940-12-30 spark plug middle electrode

Country Status (1)

Country Link
FR (1) FR868622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0637863B1 (en) * 1993-08-02 1999-01-20 Cooper Industries, Inc. Spark plug electrodes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0637863B1 (en) * 1993-08-02 1999-01-20 Cooper Industries, Inc. Spark plug electrodes

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