(19)
(11) EP 3 677 839 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

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

(48) Corrigendum issued on:
21.10.2020 Bulletin 2020/43

(43) Date of publication:
08.07.2020 Bulletin 2020/28

(21) Application number: 17923335.8

(22) Date of filing: 28.08.2017
(51) International Patent Classification (IPC): 
F23R 3/28(2006.01)
F23R 3/14(2006.01)
 F02C 7/22(2006.01)
(86) International application number:
PCT/JP2017/030692
(87) International publication number:
WO 2019/043751 (07.03.2019 Gazette 2019/10)
(84) Designated Contracting States:
AL 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 RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(71) Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Chuo-ku Kobe-shi Hyogo 650-8670 (JP)

(72) Inventors:
  • MATSUYAMA, Ryusuke
    Kobe-shi, Hyogo 650-8670 (JP)
  • FUJIWARA, Hitoshi
    Tokyo 182-8522 (JP)

(74) Representative: Dantz, Jan Henning et al
Loesenbeck - Specht - Dantz Patent- und Rechtsanwälte Am Zwinger 2
33602 Bielefeld
33602 Bielefeld (DE)

   


(54) FUEL INJECTION DEVICE


(57) A fuel injector includes: a pilot fuel injection portion including a pilot fuel supply block and a pilot shroud; a main fuel injection portion arranged so as to surround the pilot fuel injection portion from an outer side in a radial direction; and an intermediate air passage arranged between the pilot fuel injection portion and the main fuel injection portion. The pilot shroud includes: a throat located at a downstream side of the pilot fuel supply block; and a flame holding portion surrounding flame located at the downstream side of the throat. An air injection slit is formed at the flame holding portion, the air injection slit being configured to inject compressed air of the intermediate air passage in a direction along an inner peripheral surface of the flame holding portion such that the compressed air covers the inner peripheral surface over an entire periphery.