(19)
(11) EP 2 020 715 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.12.2011 Bulletin 2011/51

(43) Date of publication A2:
04.02.2009 Bulletin 2009/06

(21) Application number: 07021928.2

(22) Date of filing: 12.11.2007
(51) International Patent Classification (IPC): 
H01T 13/46(2006.01)
 H01T 13/14(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 01.08.2007 JP 2007200420
06.08.2007 JP 2007203842

(71) Applicant: Miyama, Inc.
Nagano-shi, Nagano (JP)

(72) Inventor:
  • Minami, Katsuaki
    Nagano-shi Nagano (JP)

(74) Representative: Hager, Thomas Johannes et al
Hoefer & Partner Patentanwälte Postfach 14 03 29
80453 München
80453 München (DE)

   


(54) Multipoint ignition device


(57) Respective heat values of a plurality of electrode pairs P1 to P8 are set individually such that the temperatures of all of the plurality of electrode pairs (P1 to P8) are kept within an appropriate temperature range in which a temperature no lower than a self-cleaning temperature is set as a lower limit temperature and a lower temperature than a pre-ignition temperature is set as an upper limit temperature.







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