EP 0342641 B1 19930210 - SPARKING PLUG
Title (en)
SPARKING PLUG
Publication
Application
Priority
DE 3816968 A 19880518
Abstract (en)
[origin: EP0342641A1] A sparking plug with combined surface and air gaps, there being provided a central electrode (3), an insulator (2) surrounding the central electrode and an earthing electrode (4) which, together with a sparking plug body (1), surrounds the insulator (3). The insulator (2) forms in the end section a discharge chamber (5), through which the central electrode (3) extends axially as far as the end section of the sparking plug body (1). The earthing electrode (4) embraces the insulator (2) around its end with a projection extending into the discharge chamber (5). <IMAGE>
IPC 1-7
IPC 8 full level
H01T 13/32 (2006.01); H01T 13/46 (2006.01); H01T 13/52 (2006.01); H01T 13/54 (2006.01)
CPC (source: EP KR US)
H01T 13/00 (2013.01 - KR); H01T 13/32 (2013.01 - EP US); H01T 13/467 (2013.01 - EP US); H01T 13/52 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0342641 A1 19891123; EP 0342641 B1 19930210; AT E85731 T1 19930215; BR 8902324 A 19900109; DE 3816968 A1 19891130; JP H0218883 A 19900123; KR 890017835 A 19891218; US 4963784 A 19901016
DOCDB simple family (application)
EP 89108856 A 19890517; AT 89108856 T 19890517; BR 8902324 A 19890518; DE 3816968 A 19880518; JP 12165189 A 19890517; KR 890006676 A 19890518; US 35377489 A 19890518