Global Patent Index - EP 3230572 A1

EP 3230572 A1 2017-10-18 - METHOD FOR OPERATING A FUEL INJECTOR

Title (en)

METHOD FOR OPERATING A FUEL INJECTOR

Title (de)

VERFAHREN ZUM BETREIBEN EINES KRAFTSTOFFINJEKTORS

Title (fr)

PROCÉDÉ DE FONCTIONNEMENT D'UN INJECTEUR DE CARBURANT

Publication

EP 3230572 A1 (DE)

Application

EP 15793815 A

Priority

  • DE 102014225530 A
  • EP 2015076332 W

Abstract (en)

[origin: WO2016091520A1] Disclosed is a method for operating a fuel injector comprising at least one injection port controlled by an injector needle, wherein pressure variations when the injector needle is opened and/or closed are determined using a sensor. Said method is characterized in that in order to determine the opening/closing time of the injector needle, a variable characterizing the speed of sound is measured by opening and/or closing a shock wave, and the wave propagation time by which the opening/closing time of the needle or valve is corrected is deduced therefrom.

IPC 8 full level (invention and additional information)

F02D 41/38 (2006.01); F02D 41/20 (2006.01); F02D 41/40 (2006.01)

CPC (invention and additional information)

F02D 41/3809 (2013.01); F02D 41/401 (2013.01); F02D 2041/2055 (2013.01); F02D 2200/025 (2013.01); F02D 2200/0602 (2013.01); Y02T 10/44 (2013.01)

Designated contracting state (EPC)

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 state (EPC)

BA ME

EPO simple patent family

WO 2016091520 A1 20160616; CN 107002586 A 20170801; DE 102014225530 A1 20160616; EP 3230572 A1 20171018

INPADOC legal status


2017-10-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170711

2017-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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

2017-10-18 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN

- Countries: MA MD

2017-10-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: BA ME