About 68 results
https://drivepatents.com/patents/1079313 · 16 Mar 2005
If an input voltage to an output control device is above a lower limit value, the output control device operates in a constant voltage control mode for maintaining an output voltage to a substantially constant voltage. If the input voltage of the output co...
https://drivepatents.com/patents/1079418 · 9 Mar 2005
A fuel supply device for direct methanol fuel cells includes a fuel tank (100) for storing liquid fuel, a wick structure (200) formed on the fuel tank, the wick structure for receiving the liquid fuel from the fuel tank, a sheet stack (300) disposed on the...
https://drivepatents.com/patents/1079498 · 9 Mar 2005
A polymer electrolyte fuel cell system is disclosed, comprising a fuel cell having a predetermined power generation portion configured to operate at a predetermined temperature to generate an electric power using a fuel gas and an oxidizing gas supplied to...
https://drivepatents.com/patents/1079412 · 9 Mar 2005
A fuel supply device for direct methanol fuel cells. The fuel supply device for direct methanol fuel cells includes a fuel tank (100) to store a liquid fuel, a cavity plate (200) to store the liquid fuel transferred from the fuel tank (100), a thin film ty...
https://drivepatents.com/patents/1079410 · 9 Mar 2005
A fuel supply device for direct methanol fuel cells includes a fuel tank (100) for storing liquid fuel, a cavity plate (200) formed on the fuel tank, the cavity plate storing liquid fuel transferred from the fuel tank, and a nozzle (300) plate formed on th...
https://drivepatents.com/patents/1081638 · 15 Dec 2004
The present invention relates to a fuel cell having an electricity generator which has an oxygen electrode, a fuel electrode, and a solid polymer type electrolyte membrane disposed between the oxygen electrode and the fuel electrode, and a method for contr...
https://drivepatents.com/patents/1081785 · 8 Dec 2004
A fuel cell module (50) includes at least one fuel cell stack (10) comprising a number of fuel cell units (20). An inlet (12) is configured to receive an oxidant flow for supplying the fuel cell stack. An outlet (14) is configured to exhaust an exhaust oxi...
https://drivepatents.com/patents/1082370 · 17 Nov 2004
The method involves monitoring the flow of fuel into the fuel cell system and/or monitoring the fuel reserves in a fuel reserve container (3) which the fuel cell system supplies with fuel. A signal is output if the flow of fuel is not sufficient to supply ...
https://drivepatents.com/patents/1083426 · 6 Oct 2004
A method for elevating a temperature within a fuel cell (401) having a cathode (101), an electrolyte (102) and an anode (103), includes, prior to the electrolyte (102) reaching a minimum temperature at which oxygen ions (111) cross the electrolyte (102), c...
https://drivepatents.com/patents/1084807 · 18 Aug 2004
A method of operating a fuel cell (104) includes supplying a gas stream (114/118) to the fuel cell (104) and oscillating the gas stream (114/118).