Global Patent Index - EP 2526595 B1

EP 2526595 B1 20150311 - SPARK PLUG, IGNITION SYSTEM, ENGINE AND IGNITION METHOD FOR THE ENGINE

Title (en)

SPARK PLUG, IGNITION SYSTEM, ENGINE AND IGNITION METHOD FOR THE ENGINE

Title (de)

ZÜNDKERZE, ZÜNDSYSTEM, MOTOR UND ZÜNDVERFAHREN FÜR DEN MOTOR

Title (fr)

BOUGIE, SYSTEME D'ALLUMAGE, MOTEUR ET PROCEDE D'ALLUMAGE POUR LE MOTEUR

Publication

EP 2526595 B1 20150311 (FR)

Application

EP 11704661 A 20110120

Priority

  • FR 1050434 A 20100122
  • FR 2011050103 W 20110120

Abstract (en)

[origin: WO2011089360A1] The invention relates to a spark plug (1), which includes: a housing (3); an insulator (4); an electrode (5) passing through the insulator (4) and comprising a spike (6); a resonator (7) comprising a supply terminal (70), an output terminal (72) coinciding with the electrode (5), a winding (73) recessed in the housing (3), an earth terminal (71) and a capacitor (74). According to the invention, the distance between the winding (73) and the spike (6) is comprised between 2 cm and 6 cm, the overvoltage (V) is no higher than 30 KV, the spike (6) comprises a head (61) which has a radius (R1) with a curvature no larger than 250 µm, and the resonator (7) has a specific frequency (F) of 3 MHz to 10 MHz. The invention also relates to an ignition system (10) and to an engine (9) using the spark plug (1) as well as to a method for igniting said engine (9).

IPC 8 full level

H01T 13/50 (2006.01)

CPC (source: EP)

H01T 13/50 (2013.01)

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 2011089360 A1 20110728; CN 102804527 A 20121128; CN 102804527 B 20140122; EP 2526595 A1 20121128; EP 2526595 B1 20150311; FR 2955710 A1 20110729; FR 2955710 B1 20120113

DOCDB simple family (application)

FR 2011050103 W 20110120; CN 201180014219 A 20110120; EP 11704661 A 20110120; FR 1050434 A 20100122