(19)
(11) EP 2 113 651 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:
09.06.2010 Bulletin 2010/23

(43) Date of publication:
04.11.2009 Bulletin 2009/45

(21) Application number: 09158337.7

(22) Date of filing: 21.04.2009
(51) International Patent Classification (IPC): 
F02M 51/06(2006.01)
F02M 61/16(2006.01)
 F02M 61/20(2006.01)
(84) Designated Contracting States:
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 SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 23.04.2008 EP 08425280

(71) Applicant: Magneti Marelli S.p.A.
Corbetta (MI) (IT)

(72) Inventors:
  • Dragone, Pasquale
    75100 Matera (IT)
  • Cobianchi, Andrea
    40133 Bologna (IT)
  • Vignoli, Mirco
    40069 Zola Predosa (IT)

(74) Representative: Jorio, Paolo et al
Studio Torta S.r.l. Via Viotti 9
10121 Torino
10121 Torino (IT)

   


(54) Electromagnetic fuel injector for gaseous fuels with anti-wear stop device


(57) Electromagnetic fuel injector (1) for gaseous fuels comprising: an injection nozzle (3) controlled by an injection valve (8); a movable shutter (10) to regulate the flow of fuel through the injection valve (8); an electromagnetic actuator (7), which is suitable to move the shutter (10) between a closed position and an open position of the injection valve (8) and comprises a fixed magnetic pole (16), a coil (14) suitable to induce a magnetic flux in the magnetic pole (16), and a movable anchor (17) suitable to be magnetically attracted by the magnetic pole (16); an absorption element (28), which is made of an amagnetic elastic material and is arranged between the magnetic pole (16) and the anchor (17); and a protective element (29), which is made of a magnetic metal material having high surface hardness and is interposed between the absorption element (28) and the anchor (17).