摘要:
Provided is an electrode catalyst that can exhibit sufficient performance, is suitable for mass production, and is suitable for reducing production costs, even when containing a relatively high concentration of chlorine. The electrode catalyst has a core-shell structure including a support; a core part that is formed on the support; and a shell part that is formed so as to cover at least one portion of the surface of the core part. The electrode catalyst concurrently fulfils conditions expressed by the following formulae (1) and (2): (X1/M) ‰¤ 1.2 ·· (1) (X2/M) ‰¤ 47.0 · (2) (in the formula (1) and the formula (2), M represents an amount of substance (number of atoms) of one or more constituent metal elements of the shell part, X1 represents an amount of substance (number of atoms) of bromine (Br), and X2 represents an amount of substance (number of atoms) of chlorine (Cl)).
摘要:
A fuel cell system for generating power by supplying anode gas and cathode gas to a fuel cell includes a valve provided in the fuel cell system and to be driven by a stepping motor, a stop-time valve control unit for controlling a valve body of the valve to a predetermined initialization position by controlling the stepping motor when a request to stop the fuel cell system is made, and a valve initializing unit for rotating the stepping motor by a predetermined initialization step number smaller than a maximum step number of the stepping motor so that the valve body of the valve moves toward the initialization position when a request to start the fuel cell system is made.
摘要:
A fuel cell system for generating power by supplying anode gas and cathode gas to a fuel cell includes a valve provided in the fuel cell system and to be driven by a stepping motor, a stop-time valve control unit for controlling a valve body of the valve to a predetermined initialization position by controlling the stepping motor when a request to stop the fuel cell system is made, and a valve initializing unit for rotating the stepping motor by a predetermined initialization step number smaller than a maximum step number of the stepping motor so that the valve body of the valve moves toward the initialization position when a request to start the fuel cell system is made.
摘要:
A fuel cell system includes: a cathode pressure control unit configured to control a pressure of a cathode gas to be supplied to the fuel cell stack on the basis of a load of the fuel cell stack; and an anode pressure control unit configured to control a pressure of an anode gas to be supplied to the fuel cell stack to become higher than the pressure of the cathode gas so that a differential pressure between the pressure of the anode gas and the pressure of the cathode gas becomes a predetermined differential pressure or lower. The anode pressure control unit controls, at a time of recovery from idle stop, the pressure of the anode gas to be supplied to the fuel cell stack to a recovery-time pressure, the recovery-time pressure being obtained by adding the predetermined differential pressure to a predetermined pressure corresponding to an atmosphere pressure.
摘要:
Fuel cell reactant flow field plates (22, 32) are formed by extruding long sections (17, 25) of carbonaceous material, either with straight grooves (18, 28) formed by the extrusion die, or by end milling or arbor milling, and then cut to a proper size, including cuts in which the edges of the plates are at an angle with respect to the grooves. Cooler plates are formed of water-permeable material (39) in which hydrophobic material (40) is impregnated so as to define coolant channels (42, 44) with inlets and outlets (47, 49). A two-layer cooler plate is formed by stamping voids in one layer (51) that define coolant flow channels (52) with inlets (54) and outlets (56) while a second layer (59) is stamped with voids (61, 62) that define coolant inlet and exit headers; juxtaposition of the layers, with or without bonding, form the cooler plate. A cooler plate (65) is made by corrugating thin metal sheet, providing coolant channels (68) for cathodes and coolant channels (74) for anodes when interposed therebetween.
摘要:
Die Erfindung betrifft einen Sammelbehälter (1), insbesondere für eine brandgefährdete und/oder explosionsgefährdete Umgebung, aufweisend zumindest die folgenden Komponenten: eine Sammelkammer (2) zur Aufnahme einer zu sammelnden Flüssigkeit (3) mit einem Kondensateinlass (18) für die Flüssigkeit (3); und eine Saugöffnung (4) zum Abführen der Flüssigkeit (3) aus der Sammelkammer (2). Erfindungsgemäß sind zumindest die weiteren folgenden Komponenten vorgesehen: eine Venturi-Düse (5), die in kommunizierender Strömungsverbindung mit der Saugöffnung (4) steht, so dass mittels der Venturi-Düse (5) ein Unterdruck in der Saugöffnung (4) erzeugbar ist; ein Druckmediumeinlass (6) für ein Druckmedium (7), der stromaufwärts der Venturi-Düse (5) angeordnet ist und in kommunizierender Strömungsverbindung mit der Venturi-Düse (5) steht, so dass ein Unterdruck in der Saugöffnung (4) erzeugbar ist, wenn ein Druckmedium (7) über den Druckmediumeinlass (6) durch die Venturi-Düse (5) gegeben wird; und ein Entnahmeauslass (8) stromabwärts der Venturi-Düse (5), der in kommunizierender Strömungsverbindung mit der Venturi-Düse (5) sowie mit der Saugöffnung (4) steht, so dass die Flüssigkeit (3) über den Entnahmeauslass (8) aus der Sammelkammer (2) abziehbar ist. Weiterhin betrifft die Erfindung ein entsprechendes Verfahren sowie ein wasserstoffbetriebenes Fahrzeug.