EP 3460929 A1 20190327 - SPARK PLUG FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
SPARK PLUG FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
ZÜNDKERZE FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
BOUGIE D'ALLUMAGE POUR MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
EP 17192672 A 20170922
Abstract (en)
The present disclosure relates to a spark plug (30) for an internal combustion engine. The spark plug (30) is configured to be mounted in a spark plug bore (44) of the engine in such a manner that a length of a heat transfer path from a center electrode (68) and a ground electrode (94) is shortened. To this end, a sealing portion (58) through which the heat transfer is effected is provided closer to an end (51) of a housing (50) of the spark plug (30) than a mounting portion (56) for mounting the spark plug (30) in the spark plug bore (44). In this manner, the heat from the center electrode (68) and the ground electrode (94) can be transferred from the housing (50) to the inner surface of the spark plug bore (44) without having to flow through the mounting portion (56).
IPC 8 full level
H01T 13/08 (2006.01); F02P 13/00 (2006.01); H01T 13/16 (2006.01); H01T 13/54 (2006.01); H01T 13/40 (2006.01)
CPC (source: CN EP)
H01T 13/02 (2013.01 - CN); H01T 13/08 (2013.01 - CN EP); H01T 13/16 (2013.01 - EP); H01T 13/20 (2013.01 - CN); H01T 13/54 (2013.01 - EP); F02P 13/00 (2013.01 - EP); F02P 15/006 (2013.01 - EP); H01T 13/40 (2013.01 - EP)
Citation (search report)
- [XY] US 2008061670 A1 20080313 - NAKAYAMA KATSUTOSHI [JP], et al
- [XY] JP 2000003777 A 20000107 - NGK SPARK PLUG CO
- [YA] US 5186132 A 19930216 - RUNGE FRIEDRICH [ZA]
- [YA] GB 2541880 A 20170308 - CUMMINS INC [US]
- [YA] US 2017167358 A1 20170615 - MAIER THOMAS [DE], 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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3460929 A1 20190327; EP 3460929 B1 20200715; CN 109546533 A 20190329; CN 109546533 B 20220125; ES 2821656 T3 20210427
DOCDB simple family (application)
EP 17192672 A 20170922; CN 201811055193 A 20180911; ES 17192672 T 20170922