Patent application number | Description | Published |
20140287334 | FUEL CELL SYSTEM AND THE OPERATING METHOD THEREOF - A fuel cell system includes an air manifold through which air is supplied or exhausted, a fuel gas manifold through which fuel gas is supplied or exhausted, a stack portion that generates electricity by using air and fuel that are supplied by the air manifold and the fuel gas manifold, and an injection array that is disposed along an inside of the air manifold or the fuel gas manifold to inject air or fuel gas. | 09-25-2014 |
20140377673 | FUEL CELL - A fuel cell including a stack in which a plurality of cells are stacked includes an air manifold and a hydrogen manifold on a first side and a second side of the stack, respectively, a jet array including a tubular body inserted in the air manifold or the hydrogen manifold and a plurality of orifices formed in the tubular body and arranged in a longitudinal direction of the tubular body, a pump or a valve for supplying air or hydrogen to the jet array; and a controller that operates the pump or the valve. | 12-25-2014 |
20150180065 | HYDROGEN PURGE UNIT FOR FUEL CELL SYSTEM - A fuel cell system having a hydrogen purge unit may include a purge pipe that connects an air discharge pipe connecting a fuel cell stack and a humidifying device and a hydrogen discharge pipe that discharges hydrogen from the fuel cell stack, and a purge valve provided at the purge pipe. In particular, a plurality of purge branch apertures are structured to discharge a purge gas from the fuel cell stack into the air discharge pipe by providing the purge branch apertures at intervals along the bottom surface of the purge pipe in a downstream section of the purge pipe that extends from the purge valve in a downstream direction. | 06-25-2015 |
20150214566 | FUEL CELL STACK MANIFOLD WITH EJECTOR FUNCTION - A fuel cell stack manifold having an ejector function of which the manufacturing cost and the weight can be reduced by optimizing hydrogen supply and recirculation channels and removing other members. hardware without a separate ejector structure for additionally attaching an ejector, of which the productivity can be improved by removing from an ejector assembly process. The fuel cell system minimizes joints through which hydrogen may leak, by implementing a new structure of a manifold added with an ejector function by integrally forming/manufacturing a stack manifold having a venturi and diffuser structure and adding a nozzle thereto. | 07-30-2015 |
20150267836 | SOLENOID VALVE FOR FUEL CELL SYSTEM - A solenoid valve for a fuel cell system is provided that includes a valve housing and a valve body disposed within the valve housing having an inflow passage through which hydrogen flows in, a discharge passage through which hydrogen is discharged, and a valve passage connecting the inflow passage and the discharge passage. A solenoid is disposed within the valve housing and a plunger is supported within the solenoid by a valve spring. and the plunger is movable upward and downward while corresponding to the direction of the valve passage. A pressure balance unit is disposed extraneous to the plunger to press the plunger with force corresponding to excessive pressure greater than a determined inflow hydrogen pressure applied through a branch passage that branches off from the inflow passage. | 09-24-2015 |
20160087289 | GAS AND CONDENSED WATER DISCHARGE SYSTEM FOR FUEL CELL SYSTEM AND CONTROL METHOD THEREOF - Disclosed are a system and a method for discharging a gas and condensed water for a fuel cell system. The gas and condensed water discharge system comprises: a fuel cell stack that includes cathodes and anodes and produces an electric current by an electrochemical reaction of oxygen and hydrogen; a water trap that temporarily stores gases and water discharged from anodes of the stack and condensed water; an integrated drain valve that is mounted at the water trap so as to generate the gas flow path for gases and the condensed water passing through a discharge portion of the integrated drain valve and discharged out of the water trap; and a controller that discharges the gases and the condensed water by opening and closing the integrated drain valve. | 03-24-2016 |
20160118675 | FUEL CELL SYSTEM USING HYDROGEN SUPPLY MANIFOLD - A fuel cell system having a hydrogen supply manifold according to an exemplary embodiment of the present invention may include a stack that uses air and fuel gas, which is supplied, to generated electricity, a recirculation line that recirculates a fuel gas, which is partially used by the stack to be exhausted, to an inlet of the stack, and an ejector unit that is disposed on the recirculation line, supplies fresh fuel gas, and circulates the recirculated gas, wherein the ejector unit may include a middle pressure manifold where a nozzle mounting portion is formed at one side and a supply passage is formed to transmit fuel gas to the nozzle mounting portion, a control valve that is disposed on the middle pressure manifold to control fuel that is supplied to the stack, a nozzle that is engaged with an end portion of the nozzle mounting portion to injects fuel gas that is supplied through the supply passage, and a low pressure manifold that is engaged with the middle pressure manifold, a chamber is formed to house the nozzle mounting portion and the nozzle, a venture and a diffuser is formed in a direction that the fuel gas is injected from the nozzle, sucks exhaust gas of the stack and mixes the exhaust gas and the fuel that is injected from the nozzle through the venture and the diffuser. | 04-28-2016 |
20160126569 | MANIFOLD DEVICE OF FUEL CELL STACK - A manifold device of a fuel cell stack is provided which prevents moisture condensed in gases supplied to the fuel cell stack from excessively flowing into specific cells of the stack by heating gases supplied into the stack using heat of the stack. The manifold device also prevents flooding that is caused by liquid generated in cells disposed away from a gas inlet by removing a flow rate difference of gases generated in respective cells based on distances from the gas inlet of the stack. | 05-05-2016 |