EP 3501073 A1 20190626 - CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE
Title (en)
CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE
Title (de)
KORONAZÜNDUNGSVORRICHTUNG MIT VERBESSERTER ELEKTRISCHER LEISTUNG
Title (fr)
DISPOSITIF D'ALLUMAGE À EFFET COURONNE À PERFORMANCES ÉLECTRIQUES AMÉLIORÉES
Publication
Application
Priority
- US 201615240652 A 20160818
- US 2017046420 W 20170811
Abstract (en)
[origin: WO2018034952A1] A corona igniter (20) comprises a central electrode (22) surrounded by an insulator (26), which is surrounded by a conductive component. The conductive component includes a shell (34) and an intermediate part (36) both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface (50) of the insulator presents a lower ledge (52), and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter Dc is less than an insulator outer diameter Dio directly below the lower ledge such the insulator thickness ti increases toward the electrode firing end (40). The insulator outer diameter is also typically less than the shell inner diameter Dis also that the corona igniter can be reverse-assembled.
IPC 8 full level
H01T 13/36 (2006.01); H01T 13/44 (2006.01); H01T 13/50 (2006.01); H01T 21/02 (2006.01)
CPC (source: CN EP KR)
H01T 1/22 (2013.01 - KR); H01T 13/36 (2013.01 - CN EP KR); H01T 13/39 (2013.01 - KR); H01T 13/44 (2013.01 - CN EP KR); H01T 13/50 (2013.01 - CN EP KR); H01T 21/02 (2013.01 - CN EP KR)
Citation (search report)
See references of WO 2018034952A1
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)
WO 2018034952 A1 20180222; CN 109952687 A 20190628; CN 109952687 B 20211015; CN 114024213 A 20220208; CN 114024213 B 20220909; EP 3501073 A1 20190626; JP 2019531576 A 20191031; JP 7086052 B2 20220617; KR 20190034669 A 20190402
DOCDB simple family (application)
US 2017046420 W 20170811; CN 201780064454 A 20170811; CN 202111183481 A 20170811; EP 17754985 A 20170811; JP 2019509466 A 20170811; KR 20197007035 A 20170811