EP 2614562 B1 20160420 - SPARKPLUG FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
SPARKPLUG FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
ZÜNDKERZE FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
BOUGIE D'ALLUMAGE POUR MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- FR 1057206 A 20100910
- FR 2011052057 W 20110908
Abstract (en)
[origin: WO2012032268A1] The invention relates to a sparkplug (10) comprising an induction coil (28) and an electrode (24). Said induction coil (28) has two end portions (30, 32) (34), said electrode (24) extending in the continuation of one of said two end portions (32). Said induction coil (28) has a conducting wire (36) wound to form a succession of turns (44, 45, 58, 60), said one of said two end portions (32) having a terminal turn (58) connected to said electrode (24). According to the invention, said one of said two end portions (32) comprises a plurality of coaxial end turns (45) which extend between said terminal turn (58) and an upstream turn (60), and said terminal turn (58) has a diameter D58 smaller than the diameter D60 of said upstream turn (60), so as to be able to reduce the strength of the electric field induced in said one of said two end portions (32) near said terminal turn (58).
IPC 8 full level
H01T 13/44 (2006.01)
CPC (source: EP KR US)
H01T 13/00 (2013.01 - US); H01T 13/44 (2013.01 - EP KR US)
Citation (examination)
FR 2071389 A5 19710917 - CHAMPION SPARK PLUG CO
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 2012032268 A1 20120315; BR 112013005599 A2 20200804; BR 112013005599 B1 20210309; CN 103201916 A 20130710; CN 103201916 B 20160302; EP 2614562 A1 20130717; EP 2614562 B1 20160420; ES 2569340 T3 20160510; FR 2964803 A1 20120316; FR 2964803 B1 20120831; JP 2014502401 A 20140130; JP 5813769 B2 20151117; KR 20130102071 A 20130916; MX 2013002622 A 20131028; RU 2013115912 A 20141020; RU 2577319 C2 20160320; US 2013293086 A1 20131107; US 8810115 B2 20140819
DOCDB simple family (application)
FR 2011052057 W 20110908; BR 112013005599 A 20110908; CN 201180053725 A 20110908; EP 11776221 A 20110908; ES 11776221 T 20110908; FR 1057206 A 20100910; JP 2013527665 A 20110908; KR 20137009051 A 20110908; MX 2013002622 A 20110908; RU 2013115912 A 20110908; US 201113822217 A 20110908