Global Patent Index - EP 1825580 B1

EP 1825580 B1 20080326 - DEVICE FOR IMPROVING THE PERFORMANCE OF A SPARK PLUG FOR A TWO OR FOUR STROKE INTERNAL COMBUSTION

Title (en)

DEVICE FOR IMPROVING THE PERFORMANCE OF A SPARK PLUG FOR A TWO OR FOUR STROKE INTERNAL COMBUSTION

Title (de)

EINRICHTUNG ZUR VERBESSERUNG DER LEISTUNGSFÄHIGKEIT EINER ZÜNDKERZE FÜR EINEN ZWEI- ODER VIERTAKTMOTOR

Title (fr)

DISPOSITIF POUR AMÉLIORER LE RENDEMENT D'UNE BOUGIE POUR MOTEUR À COMBUSTION INTERNE, DEUX OU QUATRE TEMPS

Publication

EP 1825580 B1 20080326 (FR)

Application

EP 05809120 A 20051017

Priority

  • FR 2005002564 W 20051017
  • FR 0413114 A 20041209

Abstract (en)

[origin: WO2006061468A1] A device for improving the yield of a spark plug for a two or four stroke internal combustion engine, in order to reduce pollution, facilitate starting and increase the performance of the engine while reducing consumption. The invention relates to a device for creating the circulation of a gaseous liquid inside the case via continuous oblique holes (1) in the form of venturi at the base of the case (2), a continuous hole (3) which is conical on the upper part on the negative electrode (4), in order to obtain a more homogeneous spark which is wider and more intense and in order to increase the density of the gaseous mixture in said spark. The device also makes it possible to avoid deposits of calamine and to reduce the operating heat of the spark plug (as a thermal index controller).

IPC 8 full level

H01T 13/32 (2006.01)

CPC (source: EP US)

H01T 13/32 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006061468 A1 20060615; AT E390744 T1 20080415; DE 602005005716 D1 20080508; DE 602005005716 T2 20090416; EP 1825580 A1 20070829; EP 1825580 B1 20080326; FR 2879365 A1 20060616; FR 2879365 B1 20080808; US 2007256656 A1 20071108

DOCDB simple family (application)

FR 2005002564 W 20051017; AT 05809120 T 20051017; DE 602005005716 T 20051017; EP 05809120 A 20051017; FR 0413114 A 20041209; US 79257905 A 20051017