Class / Patent application number | Description | Number of patent applications / Date published |
429435000 | Plural heat exchangers | 34 |
20100196773 | METHODS FOR INHIBITING CORROSION IN BRAZED METAL SURFACES AND COOLANTS AND ADDITIVES FOR USE THEREIN - Disclosed are coolants comprising brazed metal corrosion inhibitors. In one embodiment, the disclosed brazed metal corrosion inhibitor will comprise a polycarboxylic acid functional compound having the structure: | 08-05-2010 |
20110053025 | COOLING SYSTEM FOR FUEL CELL VEHICLE - A cooling system for a fuel cell vehicle, may include a stack radiator, an electric drivetrain radiator disposed in series at a side of the stack radiator, an aircon condenser disposed in front of the stack radiator to cover the stack radiator, not the electric drivetrain radiator, and cooling fans disposed behind the stack radiator and the electric drivetrain radiator which are disposed in series. | 03-03-2011 |
20110117466 | Solid Oxide Fuel Cell Systems - According to one embodiment of the present invention a fuel cell system comprises: (i) a plurality of fuel cell packets, each packet comprising at least one fuel inlet, at least one fuel outlet, a frame, and two multi-cell fuel cell devices, the fuel cell devices situated such that an anode side of one fuel cell device faces an anode side of another fuel cell device, and the two fuel cell devices, in combination, at least partially form a fuel chamber connected to the fuel inlet and the fuel outlet; (ii) a plurality of heat exchange packets, each packet comprising at least one oxidant inlet, at least one oxidant outlet, and an internal oxidant chamber connected to the at least one oxidant inlet and the least one oxidant outlet; the heat exchange packets being parallel to and interspersed between the fuel cell packets, such that the heat exchange packets face the fuel cell packets and form, at least in part, a plurality of cathode reaction chambers between the heat exchange packets and the fuel cell packets; (iii) a housing supporting and enclosing the fuel packets and the heat exchange packets; (iv) an oxidant inlet plenum operatively connected to oxidant inlets of the heat exchange packets; (v) an oxidant exhaust plenum operatively connected to the cathode reaction chambers; (vi) an inlet fuel manifold connected to fuel inlets of the fuel cell packets; and (vii) an exhaust fuel manifold connected to the fuel outlets of the fuel cell packets. | 05-19-2011 |
20110123887 | FUEL CELL - A fuel cell includes a stack of electrolyte electrode assemblies and metal separators. Each of the electrolyte electrode assemblies includes an electrolyte and a pair of electrodes sandwiching the electrolyte between the pair of electrodes. The fuel cell includes a coolant channel. The coolant channel is formed between the metal separators that are adjacent to each other to allow a coolant to flow through the coolant channel, and has grooves. The coolant channel includes an inclined coolant channel group in which overlapping portions of the grooves facing each other are connected along flow of the coolant that is oriented diagonally inward with respect to a longitudinal direction. The inclined coolant channel group includes inclined coolant channels whose downstream ends are connected to a downstream center of the coolant channel and whose upstream ends are connected to coolant inlet manifolds. | 05-26-2011 |
20110136030 | HIGH TEMPERATURE PEM FUEL CELL WITH THERMAL MANAGEMENT SYSTEM - A high temperature proton exchange medium (PEM) fuel stack system includes features for enhancing the thermal management of the fuel cell. The fuel cell can include a plurality of membrane-electrode-assemblies (MEA) separated by bipolar plates. The upper and lower edges of the bipolar plates are configured such that a plurality of fins is formed therein. Air can be passed along the fins in the upper edges of the plates and along the fins in the lower edges in opposite directions. A plurality of channels is formed on one or both surfaces of the bipolar plates. The channels extend along a serpentine path. Except for the end plates, hydrogen is supplied to the channels on one side of each plate and air is supplied to the channels on the channels on the opposite side of each plate. Such features keep the fuel cell within acceptable temperature limits during operation. | 06-09-2011 |
20120021320 | FUEL CELL SYSTEM AND METHOD FOR OPERATING FUEL CELL SYSTEM - A fuel cell system ( | 01-26-2012 |
20120045706 | COOLING SYSTEM AND METHOD OF A FUEL CELL - A cooling system of a fuel cell is provided with a main cooling flow passage and a bypass cooling flow passage which is arranged parallel with the main cooling flow passage and diverts the same coolant, as flow passages through which coolant flows. A radiator and a coolant circulation pump and the like are arranged in the main cooling flow passage. Coolant from the main cooling flow passage enters the bypass cooling flow passage and reaches a second heat exchanger via a case of a motor of an ACP and the like. At the second heat exchanger, heat exchange is also performed with a supply gas flow passage, after which the coolant returns to the main cooling flow passage. The manner in which the coolant is distributed can be changed depending on where the coolant is diverted from the main cooling flow passage and the arrangement of the circulation pump. | 02-23-2012 |
20120088175 | COMPACT FUEL CELL - A fuel cell including a stack of electrochemical cells, a pair of end plates located at each end of the stack of cells, and a cooling system for cooling the cells. The cooling system includes a coolant fluid circulating in closed loop through the stack and in the end plates, such that the coolant fluid exchanges heat with the end plates. | 04-12-2012 |
20120122002 | PHOSPHORIC ACID FUEL CELL WITH INTEGRATED ABSORPTION CYCLE REFRIGERATION SYSTEM - A phosphoric acid fuel cell (PAFC) system includes a cell stack assembly having an anode, a cathode and a coolant portion. At least one heat exchanger is fluidly interconnected with at least one of the anode, the cathode and the coolant portion and provides a fluid path for receiving a fluid from the anode, the cathode and/or the coolant portion. An absorption cycle refrigerant system includes an absorber having a solution of refrigerant and absorbent, and an absorbent loop and a refrigerant loop communicating with the absorber and respectively carrying absorbent and refrigerant. The at least one heat exchanger is arranged in the absorbent loop and is configured to transfer heat from the fuel cell system to the absorption chiller. | 05-17-2012 |
20120129066 | DEVICE AND METHOD FOR COOLING A THERMAL MEMBER IN AN AUTOMOBILE - A cooling device includes a main cooling circuit capable of adjusting the temperature of a thermal member, a secondary cooling circuit including a first assembly of at least two heat exchangers mounted in parallel, and a thermal coupling between the main cooling circuit and the secondary cooling circuit. The cooling device also includes a temperature sensor mounted in series on the secondary cooling circuit and downstream from the first assembly, and a control unit including an estimator to estimate, with a state monitor, the outlet temperature of each heat exchanger of the first assembly from the inlet temperature of a coolant at the inlet of each heat exchanger of the first assembly and from the values measured by the temperature sensor. | 05-24-2012 |
20120315562 | COMPLEX POWER GENERATION SYSTEM AND METHOD FOR SUPPLYING HEATED WATER THEREOF - A complex power generation system according to an embodiment of the present invention may include a fuel cell module having a first heat exchanger and a second heat exchanger configured to generate a direct current by means of an electrochemical reaction between hydrogen and oxygen, a first cycle configured to receive hot water in a first temperature range from the first heat exchanger to supply to a heat pump, and receive hot water in a second temperature range from the heat pump to supply to the first heat exchanger, and a second cycle configured to receive hot water in a third temperature range from the heat pump to discharge hot water in a fourth temperature range through the second heat exchanger, thereby enhancing a heating performance and increasing a thermal efficiency of the overall system. | 12-13-2012 |
20130034790 | FUEL CELL STACK HAVING A STRUCTURAL HEAT EXCHANGER - Disclosed are fuel cell stacks incorporating heat exchangers capable of also acting as members to compress the fuel cell stack. Heat exchange through conduction is enabled by placing the heat exchanger into contact with the edges of the bipolar plates. A compressive force within the fuel cell stack is achieved by placing the heat exchanger in tension between the endplates at the opposite ends of the fuel cell stack. | 02-07-2013 |
20130052554 | FUEL CELL SYSTEM AND METHOD OF REDUCING DECREASE IN POWER GENERATION EFFICIENCY OF FUEL CELL - A fuel cell system including a fuel cell, includes: a heater core used by a heating device; a first circulation circuit arranged to circulate a heat medium through the fuel cell; a second circulation circuit arranged to circulate the heat medium through the heater core; a connection channel arranged to connect the first circulation circuit with the second circulation circuit and thereby circulate the heat medium between the first circulation circuit and the second circulation circuit; and a first temperature regulator located on the second circulation circuit and downstream of the heater core and configured to regulate temperature of the heat medium after flowing out of the heater core and before flowing into the fuel cell. | 02-28-2013 |
20130052555 | ALKALINE FUEL CELL AND ALKALINE FUEL CELL SYSTEM - Provided is an alkaline fuel cell, including: a membrane electrode assembly including an anion conductive electrolyte membrane, an anode electrode stacked on a first surface of the anion conductive electrolyte membrane, and a cathode electrode stacked on a second surface opposite to the first surface of the anion conductive electrolyte membrane; a first separator stacked on the anode electrode, at least including a fuel receiving portion for receiving a fuel; a second separator stacked on the cathode electrode, at least including an oxidant receiving portion for receiving an oxidant; and an alkaline aqueous solution supply portion for bringing an alkaline aqueous solution into contact with only the anion conductive electrolyte membrane of the membrane electrode assembly. | 02-28-2013 |
20130095407 | METHOD AND ARRANGEMENT TO CONTROL THE HEAT BALANCE OF FUEL CELL STACKS IN A FUEL CELL SYSTEM - A method to control the heat balance of fuel cell stacks in a fuel cell system, the fuel cell system including at least one fuel cell unit including fuel cell stacks, whose fuel cells include an anode side and a cathode side, as well as an electrolyte interposed therebetween, and a recuperator unit for heat exchange for preheating a supply flow of the cathode side. In the method, a desired portion is separated from the fuel exhaust flow coming from the anode side and adapted to be mixed with the cathode side exit flow before said recuperator unit. Also provided is a fuel cell system implementing the method. | 04-18-2013 |
20130224618 | MULTI-STREAM HEAT EXCHANGER FOR A FUEL CELL SYSTEM - A multi-stream heat exchanger includes at least one air preheater section, at least one cathode recuperator section, and at least one anode recuperator section, wherein each section is a plate type heat exchanger having two major surfaces and a plurality of edge surfaces, a plurality of risers through at least some of the plates, and a plurality of flow paths located between plates. The cathode recuperator section is located adjacent to a first edge surface of the anode recuperator, and the air preheater section is located adjacent to a second edge surface of the anode recuperator section. | 08-29-2013 |
20130236804 | COOLING SYSTEM AND METHOD FOR USE WITH A FUEL CELL - A cooling system is provided for use with a fuel cell. The cooling system comprises a first heat exchanger fluidly connected to an outlet passage of the fuel cell. The first heat exchanger can be configured to condense at least a portion of a fluid passing through the outlet passage of the fuel cell into liquid water. The cooling system can also comprise a second heat exchanger fluidly connected to an outlet passage of the first heat exchanger and an inlet passage of the fuel cell. The second heat exchanger can be configured to cool a fluid passing into the inlet passage of the fuel cell. In addition, the outlet passage of the fuel cell and the inlet passage of the fuel cell can be fluidly connected to a cathode of the fuel cell, and the inlet passage of the fuel cell can be configured to supply water to the cathode. | 09-12-2013 |
20130302712 | FUEL-CELL STACK COMPRISING A STACK OF CELLS AND BIPOLAR CONDUCTIVE PLATES - A fuel-cell stack including a stack of fuel cells with intermediate conductive bipolar plates. The bipolar plates include internal flow channels for flow of a heat-transfer fluid. The channels are connected to a circuit of a cooling system. Only some of the bipolar plates include internal flow channels that are temporarily or permanently not in service. | 11-14-2013 |
20130309588 | INTEGRATED CRYO-ADSORBER HYDROGEN STORAGE SYSTEM AND FUEL CELL COOLING SYSTEM - One embodiment may include an integrated fuel supply and cooling system for a fuel cell including a fuel cell stack and a fuel cell stack cooling system; a cryo-adsorber including a bed of particles for adsorbing hydrogen fluid; wherein the cryo-adsorber may be in heat transfer communication with the fuel cell stack cooling system and in fluid communication with the fuel cell stack. | 11-21-2013 |
20140004436 | SYSTEM FOR CONTROLLING TEMPERATURE IN A FUEL CELL | 01-02-2014 |
20140045088 | FUEL CELL, THE OVERALL SIZE OF WHICH IS REDUCED - A fuel cell including two stacks of electrochemical cells, a thermal management system including a coolant circulation circuit in the stacks, each stack of electrochemical cells being squeezed by a first end plate common to the two stacks and a second end plate, each stack including at least one coolant circulation channel, two pumps being provided for circulating the coolant in the channels, and a chamber formed in the common end plate, the two pumps and the channels passing through the stacks being connected to this chamber. There are valves between each pump and the chamber, communication with a pump being interrupted if there is no coolant flow from this pump. | 02-13-2014 |
20140087283 | FUEL CELL SYSTEM FOR AN AIRCRAFT, METHOD FOR OPERATING A FUEL CELL SYSTEM IN AN AIRCRAFT AND AIRCRAFT WITH SUCH A FUEL CELL SYSTEM - A fuel cell system includes a first fuel cell unit having a first fuel cell and a second fuel cell, a second fuel cell unit having a third fuel cell and a fourth fuel cell, a hydrogen tank coupled to all fuel cells, an oxygen supply unit and an air inlet. Oxidant inlets of the first fuel cell and the fourth fuel cell are couplable with the air inlet. Oxidant inlets of the second fuel cell and the third fuel cell are couplable with the oxidant supply unit couplable with at least one of the oxygen supply unit and the air inlet. Exhaust outlets of the first and fourth fuel cells are couplable with an inert gas outlet. Exhaust outlets of the second and third fuel cells are coupled with an exhaust switching unit couplable with the inert gas outlet and a water outlet. | 03-27-2014 |
20140099562 | DESIGN OF BIPOLAR PLATES FOR USE IN CONDUCTION-COOLED ELECTROCHEMICAL CELLS - The present disclosure is directed towards the design of bipolar plates for use in conduction-cooled electrochemical cells. Heat generated during the operation of the cell is removed from the active area of the cell to the periphery of the cell via the one or more bipolar plates in the cell. The one or more bipolar plates are configured to function as heat sinks to collect heat from the active area of the cell and to conduct the heat to the periphery of the plate where the heat is removed by traditional heat transfer means. The boundary of the one or more bipolar plates can be provided with heat dissipation structures to facilitate removal of heat from the plates. To function as effective heat sinks, the thickness of the one or more bipolar plates can be determined based on the rate of heat generation in the cell during operation, the thermal conductivity (“k”) of the material selected to form the plate, and the desired temperature gradient in a direction orthogonal to the plate (“ΔT”). | 04-10-2014 |
20140178786 | SOFC HOT BOX COMPONENTS - Various hot box fuel cell system components are provided, such as heat exchangers, steam generator and other components. | 06-26-2014 |
20140295308 | FUEL CELL STACK - A fuel cell stack ( | 10-02-2014 |
20140322624 | FUEL CELL SYSTEM AND METHOD FOR OPERATING THE SAME - A fuel cell system includes a stack; an antifreezing heater; a surplus power heater; a switching unit; and an electric power conversion unit. Where a first supply path denotes a power supply path from a system power supply to the antifreezing heater, a second supply path denotes a power supply path from the stack to the antifreezing heater, and a third supply path denotes a power supply path from the stack to the surplus power heater, when a power failure happens, the switching unit disconnects the first supply path, disconnects the second supply path and connects the third supply path until an output electric power of the stack is converted to the power necessary for operating the antifreezing heater, and connects the second supply path and disconnects the third supply path after the output power of the stack is converted to the power necessary for operating the antifreezing heater. | 10-30-2014 |
20140335434 | FUEL CELL VEHICLE - A fuel cell vehicle is provided which includes an exterior heat exchanger for cooling and the exterior heat exchanger for heating are arranged at a front part of the vehicle, and the exterior heat exchanger for heating is heated by the outside air used to cool the air-cooling type fuel cell stack, an intake duct and an exhaust duct are mounted at the front side and the rear side of the air-cooling type fuel cell stack, respectively, the intake duct and the exterior heat exchanger for cooling are arranged at a front side part of the vehicle so as not to overlap with each other when the vehicle is seen from the front, and the exterior heat exchanger for heating is arranged at the rear of the exhaust duct. | 11-13-2014 |
20140356748 | WASTE HEAT RECOVERY SYSTEM - A waste heat recovery system includes a fuel cell, a coolant circulation flow passage, a first heat exchanger, a waste heat recovery flow passage, a second heat exchanger, an upstream end of the waste heat recovery flow passage, and a downstream end of the waste heat recovery flow passage. The coolant circulation flow passage includes a first coolant supply flow passage, a first coolant exhaust flow passage, and a first bypass flow passage. The upstream end is connected to at least one of an inlet coolant reservoir and the first coolant exhaust flow passage at a position downstream of a connection point between the first coolant exhaust flow passage and the first bypass flow passage. The downstream end is connected to at least one of the inlet coolant reservoir, an outlet coolant reservoir, and the first coolant supply flow passage. | 12-04-2014 |
20150017559 | System and method for cooling an aircraft fuel cell system - A system for cooling an aircraft fuel cell system comprising a first cooling circuit thermally coupled to a first fuel cell, to remove thermal energy generated by the first fuel cell during operation from the first fuel cell, and a first heat exchanger arranged in the first cooling circuit and adapted to transfer thermal energy, removed from the first fuel cell via the first cooling circuit, to the aircraft surroundings. The system comprises a second cooling circuit thermally coupled to a second fuel cell, to remove thermal energy generated by the second fuel cell during operation from the second fuel cell, and a second heat exchanger arranged in the second cooling circuit and adapted to transfer thermal energy, removed from the second fuel cell via the second cooling circuit, to the aircraft surroundings. The first cooling circuit is thermally couplable to the second cooling circuit. | 01-15-2015 |
20150064591 | HEATER AND METHOD OF OPERATING - A heater includes a heater housing extending along a heater axis. A fuel cell stack assembly is disposed within the heater housing and includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. An electric resistive heating element is disposed within the heater housing. A positive conductor is disposed within the heater housing and is connected to the fuel cell stack assembly and to the electric resistive heating element and a negative conductor is connected to the fuel cell stack assembly and to the electric resistive heating element. The electric resistive heating element is arranged to elevate the fuel cell stack assembly from a first inactive temperature to a second active temperature. | 03-05-2015 |
20160006048 | Unknown - A fuel cell device having a fuel cell unit ( | 01-07-2016 |
20160129808 | FUEL CELL SYSTEM - A flow control valve | 05-12-2016 |
20160133953 | END PLATE FOR FUEL CELL, FUEL CELL, AND FUEL CELL SYSTEM - An end plate includes a first surface including a heat generator contact region set such that a heat generator contacts the heat generator contact region, the heat generator being included in a fuel cell system that includes the fuel cell; and a second surface opposite to the first surface, the second surface including a cooling medium flow path through which a cooling medium flows, and at least one flow path rib portion provided inside the cooling medium flow path. | 05-12-2016 |
20160172691 | ION FILTER ROOF STRUCTURE OF FUEL CELL FOR VEHICLE | 06-16-2016 |