The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2016
Filed:
Dec. 14, 2007
Michael Koenig, Kollow, DE;
Ralf-henning Stolte, Hamburg, DE;
Michael Koenig, Kollow, DE;
Ralf-Henning Stolte, Hamburg, DE;
Airbus Deutschland GmbH, Hamburg, DE;
Abstract
A fuel supply unit () for a fuel cell system which is in particular suitable for use in an aircraft comprises a fuel tank () and a feed line (), which connects the fuel tank () to an inlet () of a fuel cell (). A tank isolation valve () is disposed in the feed line (). A removal line () connects an outlet () of the fuel cell () to an unpressurised region of the aircraft and/or the outer atmosphere. The fuel supply unit () also comprises a sensor () for detecting an electrical voltage in the fuel cell () and an electronic control unit () which is adapted to receive signals output from the sensor () and which is adapted to detect a fault caused by an unintentional opening or a failure of the tank isolation valve () based on the sensor signals, when in a quiescent operational state of the fuel cell system electrical energy is generated by the fuel cell ().