Global Patent Index - EP 1644637 A1

EP 1644637 A1 20060412 - PLASMA-JET SPARK PLUG

Title (en)

PLASMA-JET SPARK PLUG

Title (de)

PLASMASTRAHL-ZÜNDKERZE

Title (fr)

BOUGIE D'ALLUMAGE PAR JET DE PLASMA

Publication

EP 1644637 A1 20060412 (DE)

Application

EP 04733327 A 20040517

Priority

  • EP 2004005286 W 20040517
  • DE 10331418 A 20030710

Abstract (en)

[origin: WO2005005819A1] The invention relates to a plasma-jet spark plug for internal combustion engines. Said spark plug comprises a central electrode (2), a firing channel (6) configured from insulation material (4) and a mass electrode (3) that is concentric with the firing channel and forms an outlet. The central electrode (2) is conical. The firing channel (6) comprises a narrowing (6-5) along its course to the mass electrode, said narrowing acting as an acceleration section for the plasma.

IPC 1-7

F02P 9/00; H01T 13/20; H05H 1/34; H01T 13/50

IPC 8 full level

H01T 13/20 (2006.01); H01T 13/50 (2006.01); H05H 1/52 (2006.01)

CPC (source: EP KR US)

F02P 9/00 (2013.01 - KR); H01T 13/20 (2013.01 - EP US); H01T 13/50 (2013.01 - EP US); H05H 1/52 (2013.01 - EP US)

Citation (search report)

See references of WO 2005005819A1

Citation (third parties)

Third party :

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

WO 2005005819 A1 20050120; CN 1820141 A 20060816; DE 10331418 A1 20050127; EP 1644637 A1 20060412; JP 2007507060 A 20070322; KR 20060032626 A 20060417; US 2006137642 A1 20060629; US 7477008 B2 20090113

DOCDB simple family (application)

EP 2004005286 W 20040517; CN 200480019711 A 20040517; DE 10331418 A 20030710; EP 04733327 A 20040517; JP 2006517984 A 20040517; KR 20067000201 A 20060104; US 32807106 A 20060110