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539
resultados
Última actualización
28/04/2025 [06:47:00]
Resultados 375 a 400 de 539
Resumen de: DE102023127976A1
Vorgestellt wird eine 1. Endplatte (102) für einen Brennstoffzellenstapel (100), bei der ein Stromabnahmepunkt (106) ausgeformt ist, wobei der Stromabnahmepunkt (106) in einem Toleranzbereich mittig, insbesondere auf einer Versteifungsrippe (110), und/oder an einem Schnittpunkt einer Anzahl Versteifungsrippen (110) angeordnet ist. Weiterhin wird ein entsprechender Brennstoffzellenstapel (100) sowie ein Herstellungsverfahren für eine solche Endplatte (102) vorgestellt.
Resumen de: DE102023210043A1
Die Erfindung betrifft einen Interconnector (10) für eine elektrochemische Zelle (12) und/oder eine elektrochemische Zellanordnung (16), insbesondere eine Elektrolysezelle (14) und/oder eine Elektrolysezellenanordnung (18). Es wird vorgeschlagen den Interconnector (10) zweiteilig auszubilden.Die Erfindung betrifft auch eine elektrochemische Zelle (12), insbesondere Elektrolysezelle (14), mit einem solchen Interconnector (10) und auch eine elektrochemische Zellanordnung (16), insbesondere Elektrolysezellenanordnung (18), mit einem solchen Interconnector (10).Des Weiteren betrifft die Erfindung auch ein Verfahren zur Herstellung eines Interconnectors (10), sowie ein Verfahren zur Herstellung einer elektrochemischen Zellanordnung (16).
Resumen de: DE102023210053A1
Ein Anodensystem zum Versorgen einer Anode eines Brennstoffzellensystems einer Vorrichtung mit einem Brennstoff. Das Anodensystem umfasst eine Gitterstruktur, die mit einem Eintrittsbereich der Anode des Brennstoffzellensystems gekoppelt ist, und konfiguriert und/oder konfigurierbar ist zum Verzögern eines Aufwärmens der Gitterstruktur während einer Inbetriebnahme der Vorrichtung bis der Eintrittsbereich der Anode des Brennstoffzellensystems der Vorrichtung einen Gefrierpunkt von Wasser in dem Eintrittsbereich der Anode überschreitet.
Resumen de: DE102024126252A1
Eine Brennstoffzellenvorrichtung umfasst eine Brennstoffzelle und eine Stromverteilungseinheit, die auf der Brennstoffzelle angeordnet ist. Die Stromverteilungseinheit umfasst ein Gehäuse, ein in dem Gehäuse angeordnetes Leistungsbauteil, eine mit dem Leistungsbauteil verbundene Stromschiene und ein elektrisch isolierendes Wärmeleitpad, das zwischen der Stromschiene und dem Gehäuse angeordnet ist, um Wärme von der Stromschiene auf das Gehäuse zu übertragen.
Resumen de: DE102024200925A1
Eine Struktur zur Erhöhung der Lebensdauer eines Ionenfilters, die ein Reservoir umfasst, das konfiguriert ist, von einem Brennstoffzellenstapel ausgegebenes Kühlwasser zu speichern, einen Ionenfilter, der konfiguriert ist, Ionen aus dem von dem Brennstoffzellenstapel ausgegebenen Kühlwasser zu entfernen, ein Strömungsrateneinstellventil, das zwischen dem Ionenfilter und dem Brennstoffzellenstapel angeordnet ist, eine erste Leitung, durch welche das Kühlwasser von dem Ionenfilter zu dem Reservoir strömt, und eine zweite Leitung, die ein Durchgang ist, durch den Luft oder das Kühlwasser zwischen dem Reservoir und dem Ionenfilter entsprechend einer Änderung des Füllstands des Kühlwassers innerhalb des Ionenfilters bewegt wird.
Resumen de: DE102023209986A1
Die Erfindung betrifft eine Brennstoffzellenvorrichtung (1) mit mindestens einem Brennstoffzellenstapel (2), der mehrere Brennstoffzellen (3) umfasst, mit Halterungen (4) zur Fixierung des Brennstoffzellenstapels (2) in seiner Lage und mit Medienanschlüssen (5) zur Versorgung des mindestens einen Brennstoffzellenstapels (2) mit Brennstoff und Oxidationsmittel und zur Entsorgung der Reaktionsprodukte, wobei die Medienanschlüsse (5) mit Rohren (6) verbunden sind, wobei zur elektrischen Isolierung des Brennstoffzellenstapels (2) die Halterungen (4) jeweils zumindest teilweise aus technischer Keramik gefertigt sind und die Rohre (6) jeweils zumindest ein Rohrstück (7) aus technischer Keramik aufweisen.
Resumen de: WO2025080969A1
The present disclosure relates to a polyelectrolyte composite membrane, comprising a first layer and a second layer, wherein the first layer comprises a perfluorosulfonic acid, the second layer comprises a nonreducible oxide, and wherein the first layer is disposed on the second layer. The present disclosure further relates to a method of making the polyelectrolyte composite membrane, as well as membrane electrode assembly and fuel cell comprising the polyelectrolyte composite membrane.
Resumen de: WO2025081027A2
The present disclosure relates to a bilayer polyelectrolyte membrane, comprising a first layer and a second layer, wherein the first layer comprises a perfluorosulfonic acid, the second layer comprises a crosslinked sulfonated polymer, and wherein the first layer is disposed on the second layer. The present disclosure further relates to a method of making the bilayer polyelectrolyte membrane, as well as membrane electrode assembly and fuel cell comprising the bilayer polyelectrolyte membrane.
Resumen de: WO2025078814A1
According to the invention there is a method of applying a catalyst layer to a surface, the method comprising the steps of: providing a donor substrate having opposing first and second surfaces and providing a catalyst ink disposed as a layer on the second surface, wherein the catalyst ink comprises a catalyst and a solvent; providing an acceptor substrate, wherein the second surface of the donor substrate faces towards the acceptor substrate; and irradiating the catalyst ink with laser radiation at a wavelength which is absorbed by the catalyst ink so as to transfer the catalyst ink from the donor substrate to the acceptor substrate.
Resumen de: WO2025076574A1
The present invention relates to an articulated lorry (10) comprising: a drive unit, which has a fuel cell (26), a fuel cell cooling system (12), which has a coolant circuit (30) for guiding a cooling medium, and a pump (32) for circulating the cooling medium, a fifth-wheel plate (14) with a fifth-wheel coupling for receiving a kingpin and with a coolant duct (19) integrated in the fifth-wheel plate (14), the coolant circuit (30) connecting the fuel cell (26) and the fifth-wheel plate (14) to each other via the coolant duct (19).
Resumen de: WO2025078374A1
The invention relates to a method for operating an air system (1), comprising - at least one supply air path (2) for supplying air to at least one fuel cell stack (3) and at least one exhaust air path (4) for discharging exhaust air emerging from the fuel cell stack (3), the air supplied to the at least one fuel cell stack (3) being humidified using the exhaust air from the same fuel cell stack (2) or another fuel cell stack (2), and liquid water (5) contained in the exhaust air being first removed using a water separator (6). The invention also relates to an air system (1), and to a fuel cell system having an air system (1) according to the invention.
Resumen de: WO2025076567A1
The present invention relates to a control method for power generation of a fuel cell system (100) having a reformer device (20) for reforming a combustible (K) into a fuel (B) for at least one fuel cell (10). The adjustment method comprises, inter alia, the step of: controlling (S40) an output current (I) of an output power (P) to a specific adjustment value (EI) in order to adapt the output power (P) to the power requirement (L) by controlling the combustible mass flow (KM).
Resumen de: WO2025078376A1
The invention relates to an electrical architecture for a vehicle, comprising a propulsion electrical network (10L,10R) and a non-propulsion electrical network (20), the propulsion electrical network comprising at least one first fuel cell assembly (30L, 30R) and a propulsion electric motor (1L, 1R) connected to the first fuel cell assembly comprising at least one first fuel cell (31L ,31R) and first auxiliary electrical equipment (32L, 33L, 34L, 32R, 33R, 34R), the non-propulsion electrical network comprising a second fuel cell assembly (40L, 40R) comprising at least one second fuel cell (41L, 41R) and second auxiliary electrical equipment (42L, 42R). The architecture comprises at least one electronic control unit connected to the fuel cell assemblies (30L, 30R, 40L, 40R) in order to selectively control same in two starting phases and a nominal operating phase. The invention also relates to an aircraft comprising such an architecture.
Resumen de: WO2025078350A1
The present invention provides a facility for producing electricity comprising a non-galvanic fuel cell (1) whose heat is recovered for implementing endothermic chemical reactions (310-312) which generate at least part of the fuel of the fuel cell, which offers greater efficiency and flexibility than those of prior art. Such an improvement is provided in particular with means for storing (318) at least part of the fuel coming from the chemical reactor (310) and means (141, 320) for introducing on demand said fuel from said tank (318) to said fuel cell (1). The fuel storing means (318) allow great flexibility: the fuel produced by the chemical reactor may thereby not be used immediately by the fuel cell (1) - this allows for adaptation of the production of electricity of the fuel cell to the external demand.
Resumen de: US2025125453A1
A power transmission unit and a method for controlling the current flowing through it are disclosed. The power transmission unit includes a first switch which is turned on and off at a first duty cycle; a second switch which is turned on and off at a second duty cycle that is less than the first duty cycle; an inductive element connected between the first switch and the second switch, with its current associated with the first and second duty cycles; and a controller configured to determine a total duty cycle as the sum of the first and second duty cycles based on an actual phase current and a desired phase current of the inductive element, and to adjust the first and second duty cycles based on the determined total duty cycle. Embodiments of the present disclosure adjust both the first and second duty cycles through the total duty cycle, which changes with the total duty cycle, allowing both the first and second duty cycles to be adjusted to appropriate values. This ensures that the current flowing through the inductive element reaches an appropriate value, thereby enabling small current control.
Resumen de: US2025125383A1
A cooling system for a fuel-cell system onboard a vehicle such as an aircraft in one embodiment employs the latent heat of evaporation of a two-phase coolant to reduce mass and parasitic power requirements of the cooling system. In another embodiment the cooling system has a primary ambient air heat exchanger coolant loop for cooling the fuel-cell system, and a secondary coolant loop comprising a fluid circuit configured to circulate a coolant in thermal contact with a phase-change material (PCM) in thermal contact with the fuel-cell to absorb heat from the fuel-cell. The secondary coolant loop includes a heat pump for cooling the PCM.
Resumen de: US2025121739A1
Methods and systems for managing power of a hybrid vehicle that includes a fuel cell and a traction battery are described. In one example, cooling of the battery and fuel cell may be adjusted preemptively before the hybrid vehicle reaches high load conditions to extend fuel cell durability over its life span, meanwhile the hybrid vehicle may meet driver demand for a longer period of time while operating at the high load and high ambient temperature conditions.
Resumen de: US2025121770A1
A motor vehicle includes a fuel cell and a supply assembly to supply the fuel cell is disclosed. The supply assembly comprises a centrifugal compressor to compress a reagent and comprising an impeller having in turn a shaft portion extending along an inlet axis, a circumferential edge extending ringwise around the inlet axis, a connecting portion extending from the shaft portion to the circumferential edge, first and second blades projecting from the connecting portion, of which each of the second blades is arranged between two corresponding blades to form two respective radial flow channels for the reagent, wherein the first and second blades have respective profiles along respective curvilinear abscissae with shapes equal to each other and located uniformly distributed according to a period or angular step around the inlet axis, wherein the profiles of the second blades are shorter than those of the first blades.
Resumen de: WO2025078290A1
The invention relates to an electrical architecture for a vehicle, comprising: a propulsive electrical network (10L, 10R) comprising at least one fuel cell (30L, 30R) and an electric propulsion engine (1L, 1R) connected to the fuel cell, and a non-propulsive electrical network (2200) comprising a battery (50) and a first electric generator/engine (23L, 23R) connected to the battery. The fuel cell comprises at least one motion transmission chain comprising at least one second electric generator/engine (332L, 332R) mechanically connected to a first fluid-circulation member (331L, 331R). The first generator/engine is mechanically connected to the motion transmission chain by a motion transmission line (40L, 40R). The architecture comprises at least one electronic control unit connected to the generators/engines and arranged to actuate them selectively in a starting mode and in a nominal mode. The invention also relates to aircraft including such an architecture.
Resumen de: WO2025078289A1
The invention relates to an electrical architecture for a vehicle, comprising: at least one non-propulsive electrical network comprising at least one battery (50) and a first electric generator/motor (23L, 23R) connected to the battery; and at least one propulsive electrical network (10L, 10R) comprising at least one fuel cell (30L, 30R) and a second electric generator/motor (1L, 1R), electrically connected to the fuel cell. The first generator/motor is mechanically connected to a motion transmission line (40L, 40R) comprising a speed multiplier member mechanically connected to the second electric generator/motor (1L, 1R). The architecture comprises at least one electronic control unit connected to the generators/motors (23L, 23R, 1L, 1R) and arranged to control them selectively in a starting mode and in a nominal mode. The invention also relates to aircraft comprising such an architecture.
Resumen de: WO2025078194A1
A power system (100, 200) for generating electrical power is described. The power system (100, 200) includes a power generating system (110, 210) having an air intake (114) and an exhaust gas outlet (111) and an electric turbomachine (120, 220). The electric turbomachine includes a turbine (121) comprising a turbine inlet (126) in fluid communication with the exhaust gas outlet (111) of the power generating system (110, 210); and an electric machine (123, 223) configured to drive the compressor (122) and/or generate electric energy from the turbine (121). The power system further includes a control unit (140) for controlling operation of the power generating system (110, 210) and the electric turbomachine (120, 220).
Resumen de: US2025123029A1
A heat generating device includes: a heat generating element that is capable of occluding hydrogen and generating heat using a heat generating reaction by quantum diffusion of the hydrogen; a heater that heats the heat generating element to cause quantum diffusion of the hydrogen in the heat generating element; a container that accommodates the heat generating element and the heater; a heat removal medium circulation unit that circulates a heat removal medium through a circulation path provided on an outer periphery of the container; an inert gas supply unit that supplies an inert gas for cooling the heat generating element into the container; a coolant supply unit that supplies a coolant for cooling the heat generating element into the container; and a container opening unit that opens the container.
Resumen de: US2025123233A1
Various embodiments of an apparatus, methods, systems and computer program products described herein are directed to a Sensor for monitoring acetone emitted from the surface of the skin. The Sensor includes a gas impermeable enclosure and a carbonate removal cell enclosed within the gas impermeable enclosure. A gas permeable membrane houses the gas impermeable enclosure. A fuel cell anode is situated adjacent to the gas permeable membrane. At least a portion of a reference electrode is enclosed by a first portion of the fuel cell anode. A bottom surface of the carbonate removal cell is composed of a top surface of a second portion of the fuel cell anode. A top surface of the reference electrode and a top surface of the first portion of the fuel cell anode are in contact with a bottom surface of the gas permeable membrane.
Resumen de: US2025125452A1
Battery packs for a plurality of batteries are disclosed. The battery packs can be particularly suitable for metal-air batteries and can include channels for air and channels to replenish electrolyte. The battery packs can further include electronic circuitry to switch one or more batteries from series to parallel or parallel to series. The battery parks can recirculate the catholyte as cooling fluid. Methods of making and using the battery packs are further disclosed.
Nº publicación: US2025125634A1 17/04/2025
Solicitante:
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
Resumen de: US2025125634A1
The invention relates to an energy supply system having energy supply modules which are connected in parallel and each controlled autonomously, the energy supply modules each including load connections, a battery which couples directly to the load connections, a fuel cell which couples to the load connections via a DC/DC converter, characterized in that, within an energy supply module, the operating point of the fuel cell and the operating point of the DC/DC converter are able to be controlled by an energy management system on the basis of a state of charge of the battery, and to a method for supplying energy.
BOPI
Sede Electrónica
