continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6394/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :22/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "METHOD OF MEASURING AN IONIZATION CURRENT OF A RESONANT STRUCTURE SPARK
PLUG, AND CORREPONDING DEVICE"
(51) International classification :F02P 17/12 (71)Name of Applicant :
(31) Priority Document No :0602883
1)RENAULT S.A.S.
(32) Priority Date :03/04/2006
Address of Applicant :13-15 QUAI ALPHONSE LE GALLO,
(33) Name of priority country :France
F-92100 BOULOGNE BILLANCOURT, FRANCE. France
(86) International Application No
:PCT/FR07/050899 (72)Name of Inventor :
Filing Date
:09/03/2007 1)ANDRE AGNERAY
(87) International Publication No :WO 2007/113407 2)CLEMENT NOUVEL
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
The invention concerns a device for measuring an ionization current of a spark plug of the type with resonant structure, equipping a
motor vehicle ignition system, said spark plug (BR) being coupled to a generator (GEN) comprising a regulating capacitor. Said
generator further comprises polarizing means (MPOL) for polarizing the spark plug (BR), connected between the generator (GEN)
and said spark plug (BR) and means for measuring (MMES) the ionization current of said spark plug (BR), connected between the
regulating capacitor (Cb) and the ground.
No. of Pages : 19 No. of Claims : 8
The Patent Office Journal 24/10/2008 25856