About 11 results
https://drivepatents.com/patents/951226 · 22 Apr 2015
A solid oxide fuel cell system (1, 51) includes: a fuel cell stack (4) having a fuel electrode (2) and an oxidant electrode (3); and a combustion unit (12, 52) provided to start the system; a control unit (21) configured to perform control in such a way as...
https://drivepatents.com/patents/967758 · 5 Nov 2014
A fuel cell system of the present invention comprises a supply unit; a hydrogen generator, a fuel cell, a voltage meter, and a controller, wherein the controller is configured to: when the voltage measured by the voltage meter decreases to a first predeter...
https://drivepatents.com/patents/982566 · 30 Oct 2013
There are provided a fuel cell system and an operating method thereof, capable of reducing an adverse influence which acts on a fuel cell at the time of restarting the fuel cell after emergency shutdown of operation of the fuel cell. A fuel cell system inc...
https://drivepatents.com/patents/986620 · 18 Sep 2013
A fuel cell system is provided which includes a fuel cell (1), an evaporation unit (2), a reforming unit (3), a water tank (4), a water supply passage (8), a water conveyance source (8A), a water sensor (87), and a control unit (100). The control unit (100...
https://drivepatents.com/patents/987478 · 14 Aug 2013
A controller (81) in a fuel cell system (1A) operates a fuel cell (60) in a normal mode or in a special mode which is switched by the controller (81); in which in the normal mode, the fuel cell (60) is operated so as to satisfy at least one of a first oper...
https://drivepatents.com/patents/997663 · 3 Oct 2012
A system for adding sulfur to a fuel cell stack, having a reformer adapted to reform a hydrocarbon fuel stream containing sulfur contaminants, thereby providing a reformate stream having sulfur; a sulfur trap fluidly coupled downstream of the reformer for ...
https://drivepatents.com/patents/998446 · 12 Sep 2012
A fuel cell system of the present invention comprises a fuel cell (1), a fuel processor; a burner (2a) configured to combust at least one of off-gas containing hydrogen which has not been consumed in power generation in the fuel cell (1), the material gas,...
https://drivepatents.com/patents/1067146 · 31 May 2006
A fuel cell system of the present invention comprises a fuel cell (13), a load value detecting means (16) configured to detect a load value of a load of electric power or heat which is generated by equipment (14) supplied with the electric power or the hea...
https://drivepatents.com/patents/1082696 · 3 Nov 2004
A control device for controlling the operation of a fuel cell system is disclosed, including a microprocessor, a voltage detection circuit, a current detection circuit, a hydrogen pressure detection circuit, a temperature detection circuit, an air flow rat...
https://drivepatents.com/patents/1091934 · 12 Nov 2003
The method involves charging the PEM fuel cell with a direct current and measuring the time variation of the electrical voltage on the fuel cell. The current density used when charging the fuel cell is between 1 and 10 milliamperes per square centimeter in...