Global Patent Index - EP 3520184 B1

EP 3520184 B1 20200729 - METHOD FOR TESTING A SEMICONDUCTOR SPARK PLUG

Title (en)

METHOD FOR TESTING A SEMICONDUCTOR SPARK PLUG

Title (de)

VERFAHREN ZUM TESTEN EINER HALBLEITERZÜNDKERZE

Title (fr)

PROCEDE DE TEST D'UNE BOUGIE D'ALLUMAGE A SEMI-CONDUCTEUR

Publication

EP 3520184 B1 20200729 (FR)

Application

EP 17783944 A 20170927

Priority

  • FR 1659424 A 20160930
  • FR 2017052596 W 20170927

Abstract (en)

[origin: WO2018060592A1] In order to test a semiconductor spark plug (10), a test method comprises a step consisting of depositing water on the head (16) of the spark plug, between the two electrodes (18, 20) of same, so that the water forms a water meniscus (58) covering the semiconductor element (22) of the head, a step consisting of applying, between the first terminal (12) and the second terminal (14) of the spark plug, a voltage equal to the operating voltage of the spark plug, a step consisting of identifying at least a first characteristic of electric arcs induced between the electrodes during the application of the voltage, and a step consisting of determining the operational or defective character of the spark plug according to the first characteristic of the electric arcs. This test method is particularly reliable and does not require constraining provisions in order to ensure the safety of the operators implementing the method.

IPC 8 full level

H01T 13/58 (2020.01); H01T 13/38 (2006.01); H01T 13/52 (2006.01); H01T 13/60 (2011.01)

CPC (source: EP US)

H01T 13/52 (2013.01 - EP US); H01T 13/58 (2013.01 - EP US); H01T 13/60 (2013.01 - EP US); H01T 13/38 (2013.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2018060592 A1 20180405; EP 3520184 A1 20190807; EP 3520184 B1 20200729; FR 3057113 A1 20180406; FR 3057113 B1 20181207; US 10855058 B2 20201201; US 2019229502 A1 20190725

DOCDB simple family (application)

FR 2017052596 W 20170927; EP 17783944 A 20170927; FR 1659424 A 20160930; US 201716337514 A 20170927