EP 4256634 A1 20231011 - FUEL-CELL SYSTEM WITH EXHAUST-AIR MASS FLOW DETERMINATION
Title (en)
FUEL-CELL SYSTEM WITH EXHAUST-AIR MASS FLOW DETERMINATION
Title (de)
BRENNSTOFFZELLENSYSTEM MIT ABLUFTMASSENSTROMERMITTLUNG
Title (fr)
SYSTÈME DE PILE À COMBUSTIBLE À DÉTERMINATION DE DÉBIT MASSIQUE D'AIR D'ÉVACUATION
Publication
Application
Priority
- DE 102020215093 A 20201201
- EP 2021083317 W 20211129
Abstract (en)
[origin: WO2022117490A1] A fuel-cell system has at least one fuel cell, an oxidant line, a compressor, an exhaust-air line, a turbine, which is arranged in the exhaust-air line and is coupled to the compressor, an anode-purging line, which is connected to the exhaust-air line and has an anode-purging valve, and a control unit. The fuel-cell system is characterized in that a temperature-detecting unit is arranged at a turbine input, or upstream of the turbine input, for detecting the temperature of exhaust air flowing into the turbine, in that a pressure-detecting unit is coupled at least to the turbine input or a component lying upstream and is designed to detect a pressure of the exhaust air flowing into the turbine, in that the control unit is designed to ascertain a momentary mass flow of the exhaust air from the measured temperature of the exhaust air, the pressure upstream of the turbine and a specified turbine characteristic map, and in that the control unit is designed to activate the compressor and/or the turbine so as to achieve a minimum mass flow of the exhaust air.
IPC 8 full level
H01M 8/0432 (2016.01); H01M 8/0438 (2016.01); H01M 8/04701 (2016.01); H01M 8/04746 (2016.01); H01M 8/10 (2016.01)
CPC (source: EP US)
H01M 8/04111 (2013.01 - US); H01M 8/04231 (2013.01 - US); H01M 8/04343 (2013.01 - EP); H01M 8/0435 (2013.01 - US); H01M 8/04402 (2013.01 - EP); H01M 8/0441 (2013.01 - US); H01M 8/04716 (2013.01 - EP); H01M 8/04761 (2013.01 - EP US); H01M 2008/1095 (2013.01 - EP); Y02E 60/50 (2013.01 - EP)
Citation (search report)
See references of WO 2022117490A1
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)
WO 2022117490 A1 20220609; CN 116529918 A 20230801; DE 102020215093 A1 20220602; EP 4256634 A1 20231011; US 2024021853 A1 20240118
DOCDB simple family (application)
EP 2021083317 W 20211129; CN 202180080965 A 20211129; DE 102020215093 A 20201201; EP 21823798 A 20211129; US 202118254908 A 20211129