(19)
(11) EP 3 994 348 A1

(12)

(43) Date of publication:
11.05.2022 Bulletin 2022/19

(21) Application number: 20737395.2

(22) Date of filing: 01.07.2020
(51) International Patent Classification (IPC): 
F02D 41/20(2006.01)
 F02M 65/00(2006.01)
(52) Cooperative Patent Classification (CPC):
F02M 65/005; F02D 41/20; F02D 2041/2055; F02D 2041/2058; F02D 2041/2068; F02D 2400/22
(86) International application number:
PCT/EP2020/068476
(87) International publication number:
WO 2021/001409 (07.01.2021 Gazette 2021/01)
(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:
KH MA MD TN

(30) Priority: 01.07.2019 GB 201909434

(71) Applicant: Delphi Technologies IP Limited
Saint Michael (BB)

(72) Inventors:
  • VIT, Romain
    41120 Chailles (FR)
  • COCHET, Thierry
    41190 Valencisse (FR)
  • TAPIN, Christophe
    41000 Saint Sulpice de Pommeray (FR)

(74) Representative: Office Freylinger 
P.O. Box 48
8001 Strassen
8001 Strassen (LU)

   


(54) METHOD AND SYSTEM TO DETERMINE THE STATE OF NEEDLE VALVE OF A FUEL INJECTOR