Fuel cell operation with a failed open injector

Fuel cell operation with a failed open injector

A system and method for controlling hydrogen gas flow to an anode side of a fuel cell stack using a pressure regulator in the event that an injector that normally injects the hydrogen gas into the fuel cell stack has failed in a stuck open position. During normal operation, the control of the inject...

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Hauptverfasser: FALTA STEVEN R, KESKULA DONALD H, DI FIORE DANIEL C, LOVRIA JOSEPH N, LANG MATTHEW A, MAIER OLIVER, PECHTOLD RAINER, LEYKAUF MICHAEL
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Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator FALTA STEVEN R
KESKULA DONALD H
DI FIORE DANIEL C
LOVRIA JOSEPH N
LANG MATTHEW A
MAIER OLIVER
PECHTOLD RAINER
LEYKAUF MICHAEL
description A system and method for controlling hydrogen gas flow to an anode side of a fuel cell stack using a pressure regulator in the event that an injector that normally injects the hydrogen gas into the fuel cell stack has failed in a stuck open position. During normal operation, the control of the injector is determined based on the pressure of an anode sub-system and the position of the pressure regulator is determined based on a supply pressure between the pressure regulator and the injector. If it is determined that the injector is stuck in an open position, then the position of the pressure regulator is controlled to the anode pressure instead of the supply pressure. If the pressure regulator is an electrical pressure regulator, then it is pulsed to mimic normal system operation. Alternately, another valve, such as a shut-off valve, can be employed to provide the flow pulsing.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Fuel cell operation with a failed open injector
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