(19)
(11) EP 1 895 155 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
17.02.2010 Bulletin 2010/07

(43) Date of publication:
05.03.2008 Bulletin 2008/10

(21) Application number: 07022980.2

(22) Date of filing: 28.12.2006
(51) International Patent Classification (IPC): 
F02P 5/00(2006.01)
F02P 13/00(2006.01)
 F02P 15/08(2006.01)
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 07.03.2006 JP 2006060884
20.11.2006 JP 2006312431

(62) Application number of the earlier application in accordance with Art. 76 EPC:
06127266.2 / 1832742

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

(72) Inventor:
  • Minami, Katsuaki
    Nagano-shi, Nagano 381-2283 (JP)

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

 
Remarks:
This application was filed on 27-11-2007 as a divisional application to the application mentioned under INID code 62.
 


(54) Multipoint ignition engine


(57) A multipoint ignition engine (1) includes a central electrode pair (9), disposed in the center of a combustion chamber (2), for forming a central spark gap (10), and a plurality of peripheral electrode pairs (12) held in a head gasket (15), which has an opening portion having a substantially identical diameter to an opening portion of a cylinder (5) in a position corresponding to the opening portion of the cylinder (5), for forming a plurality of peripheral spark gaps (13) around the inner periphery of the opening portion in the cylinder (5). An air-fuel mixture in the combustion chamber (2), which is obtained by mixing together fuel and air evenly to the stoichiometric air-fuel ratio or a richer/leaner air-fuel ratio than the stoichiometric air-fuel ratio, is ignited using both the central spark gap (10) and the plurality of peripheral spark gaps (13).