EP 3235080 B1 20210224 - SPARK PLUG HAVING A GROUND ELECTRODE HAVING A SMALL CROSS-SECTION
Title (en)
SPARK PLUG HAVING A GROUND ELECTRODE HAVING A SMALL CROSS-SECTION
Title (de)
ZÜNDKERZE MIT MASSEELEKTRODE MIT KLEINEM QUERSCHNITT
Title (fr)
BOUGIE D'ALLUMAGE À ÉLECTRODE DE MASSE DE FAIBLE SECTION
Publication
Application
Priority
- DE 102014226096 A 20141216
- EP 2015078574 W 20151203
Abstract (en)
[origin: WO2016096464A1] The invention relates to a spark plug (1), comprising a housing (2), an insulator (3) arranged in the housing (2), a center electrode (5) arranged in the insulator (3), and a ground electrode (10) arranged on the housing (2), wherein the ground electrode (10) and the center electrode (5) are arranged in relation to each other in such a way that the ground electrode (10) and the center electrode (5) form a spark gap, and wherein the ground electrode (10) has a core (12) and a sheath (11) surrounding the core (12), wherein the core (12) is composed of a material that has a higher thermal conductivity than the material of the sheath (11), and wherein a cross-sectional area of the ground electrode (10) is not greater than 2.76 mm2, wherein the sheath (11) has a wall thickness c of not greater than 0.4 mm in a first region (15) of the ground electrode (10).
IPC 8 full level
H01T 13/16 (2006.01); H01T 13/32 (2006.01); H01T 13/39 (2006.01)
CPC (source: CN EP US)
H01T 13/16 (2013.01 - CN EP US); H01T 13/32 (2013.01 - CN EP US); H01T 13/39 (2013.01 - CN EP US); H01T 21/02 (2013.01 - US); H01T 13/08 (2013.01 - US); H01T 13/26 (2013.01 - US)
Citation (examination)
US 2007216275 A1 20070920 - TORII KAZUYOSHI [JP], et al
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)
DE 102014226096 A1 20160616; CN 107210586 A 20170926; EP 3235080 A1 20171025; EP 3235080 B1 20210224; US 2017358903 A1 20171214; US 9991679 B2 20180605; WO 2016096464 A1 20160623
DOCDB simple family (application)
DE 102014226096 A 20141216; CN 201580076188 A 20151203; EP 15804156 A 20151203; EP 2015078574 W 20151203; US 201515535823 A 20151203