EP 4094009 A1 20221130 - METHOD FOR OPENING A VALVE ASSEMBLY FOR A FUEL TANK
Title (en)
METHOD FOR OPENING A VALVE ASSEMBLY FOR A FUEL TANK
Title (de)
VERFAHREN ZUM ÖFFNEN EINER VENTILANORDNUNG FÜR EINEN TREIBSTOFFTANK
Title (fr)
PROCÉDÉ D'OUVERTURE D'UN ENSEMBLE DE SOUPAPES POUR UN RÉSERVOIR DE COMBUSTIBLE
Publication
Application
Priority
- DE 102020200679 A 20200122
- EP 2020087749 W 20201223
Abstract (en)
[origin: WO2021148220A1] The invention relates to a method for opening a valve assembly for a fuel tank, comprising a pilot valve (V1) and at least one additional valve (V2), in particular for use in a fuel cell-operated vehicle, having the steps of applying (30) an amplification voltage (S1) in order to open the pilot valve (V1) in an opening phase (P1) of the pilot valve (V1), deactivating (32) the amplification voltage (S1) in order to terminate the opening phase (P1) of the pilot valve (V1), applying (34) a pull-in voltage (S2) in a pull-in phase (P2) of the pilot valve (V1) in order to hold the pilot valve (V1) open, and activating and deactivating (36) the pull-in voltage (S2) in an alternating manner in order to hold the pilot valve (V1) open and in order to open the at least one other valve (V2) and hold same open in a readjustment phase (P3) such that the hold-open energy required on average for holding the pilot valve (V1) open and the opening energy and/or hold-open energy required on average for the at least one other valve (V2) is provided.
IPC 8 full level
F17C 13/02 (2006.01)
CPC (source: EP KR US)
F16K 31/0675 (2013.01 - EP KR US); F17C 13/04 (2013.01 - KR US); F17C 13/12 (2013.01 - EP); F17C 13/123 (2013.01 - EP KR US); F17C 2205/0323 (2013.01 - EP); F17C 2205/0326 (2013.01 - EP KR US); F17C 2205/0332 (2013.01 - KR US); F17C 2221/012 (2013.01 - EP KR US); F17C 2223/036 (2013.01 - EP KR US); F17C 2250/032 (2013.01 - EP KR US); F17C 2260/042 (2013.01 - EP KR US); F17C 2260/046 (2013.01 - EP KR US); F17C 2270/0178 (2013.01 - EP KR US); F17C 2270/0184 (2013.01 - EP KR US); Y02E 60/32 (2013.01 - EP KR); Y02E 60/50 (2013.01 - EP)
Citation (search report)
See references of WO 2021148220A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102020200679 A1 20210722; CN 115210496 A 20221018; EP 4094009 A1 20221130; JP 2023512953 A 20230330; KR 20220130185 A 20220926; US 2023056873 A1 20230223; WO 2021148220 A1 20210729
DOCDB simple family (application)
DE 102020200679 A 20200122; CN 202080094386 A 20201223; EP 2020087749 W 20201223; EP 20839319 A 20201223; JP 2022544100 A 20201223; KR 20227028523 A 20201223; US 202017794669 A 20201223