Abstract: Fluid distribution plate (1) for a fuel cell assembly, comprising a first plate (11) made of an electrically conductive material impermeable to all the fluids used in a fuel cell assembly, said distribution plate having a useful section (S) which is the surface over which the gases used by the electrochemical reaction are distributed, said useful section (S) being bordered all around by a peripheral section (P), said first plate having a given thickness e1 in the peripheral section and a smaller thickness e2 in the useful section so as to form a recess from the side facing the outer face and so as to have a flat inner surface, a flexible graphite foil (11C) being applied against said first plate (11) over the entire surface of the recess, the visible face of the flexible graphite foil having a distribution channel (111) for one of the fluids, said network being formed completely in the graphite foil.

Abstract: Triazine polymer comprising at least a plurality of base structural units comprising at least a moiety corresponding to the formula: in which: the symbols X1 and X2, which are identical or different, represent S, SO, or SO2; the symbols Ar1 and Ar2, which are identical or different, represent a substituted or unsubstituted phenylene group; the symbol Ar3 represents a substituted or unsubstituted phenyl group; the symbol Tz represents the 1,3,5-triazine nucleus. This polymer of the invention, which can be used as electrolyte in a PEM fuel cell, makes it possible to obtain membranes of high chemical and dimensional stability which additionally exhibit a high ion conductivity.

Abstract: A laminated product (1) that forms a deformable cellular structure, comprising: an upper band (2) and a lower band (3) both oriented in the same main direction (X); and between the two bands and connecting the latter in zones (4a, 4b) referred to anchoring zones, a series (5A, 5B, 5C) that extends in the direction X, of cylindrical structures (5) referred to connecting cylindrical structures that are non-touching in the direction X. Each connecting cylindrical structure (5) comprises a plurality of preferably concentric elementary cylinders (5a, 5b) having their generatrix oriented along an axis Y perpendicular to the direction X, said elementary cylinders being fitted one inside the other and interconnected to one another in each anchoring zone (4). Said elementary cylinders are especially composite cylinders comprising fibers embedded in a resin matrix.

Abstract: A bipolar plate (1) comprising on the first face a groove forming a first distribution channel (111) for one of the gases, comprising on the second face a groove forming a second distribution channel for the other of the gases, comprising in its thickness an inner channel (122) for the circulation of a coolant, said plate being formed from a structural support having a surface that does not conduct electricity and that is chemically inert, said plate comprising pins (10) that pass through the whole thickness and that emerge on both sides through each of said first and second faces in the working section, said pins being spread over the entire working section of said plate.

Abstract: Provided is a pneumatic tire capable of yielding excellent water-draining performance, while reducing air column resonance. This pneumatic tire (1) has a tread (3) and at least one ply (2) arranged toward the interior of the tread in the radial direction. The tread has at least one main channel (4) and a flexible fence (5) formed inside the main channel. The main channel has a bottom (413) and opposing first and second wall surfaces (411, 412). The flexible fence extends along the width of the main channel so as to block at least 70% of a cross sectional area of the main channel, and is arranged at intervals so that at least one is present in the main channel in the tread footprint when the tire rolls. A plurality of recesses having an opening that opens in the main channel are formed on the bottom, first wall surface and/or second wall surface of the main channel, the flexible fence being connected to the recess and extending into the main channel via the opening of the recess.

Abstract: A pneumatic tire provided with a noise damper in the tire cavity, which can maintain high-speed durability and productivity while also reducing cavity resonance, comprising a tread having a width TW in contact with the ground during travel, in which a noise damper made of a sound-absorbing material is attached to the tire internal surface in order to reduce cavity resonance, wherein the noise damper is at least one continuous ribbon made of a sound-absorbing material and having a width W and a thickness E, which is fixed over an attachment width Wc to the tire internal surface over a range of at least 30% of the inside of the tread in the radial direction, the start end and terminal end which are the two ends of the continuous ribbon are disposed in such a way as to be offset from each other in the axial direction, and the continuous ribbon forms, together with the tire internal surface, a continuous groove having a groove width D which is at least equal to 10% of the width W of the continuous ribbon.

Abstract: A method for producing a pneumatic tire in which a noise damper in the form of at least one continuous ribbon for reducing cavity resonance in a tire cavity is provided on the internal surface of a tire on the inside in the radial direction of the tire corresponding to the tire tread, including, providing a vulcanized and shaped tire; mixing a composition for forming the noise damper with a foaming agent to produce a liquid composition; rotating the tire in an upright state by means of a tire holding and rotation device, and introducing the liquid composition onto the tire internal surface by a device for introducing the liquid composition; varying the relative positional relationship of the pneumatic tire and the introduction implement in the axial direction of the tire while introducing the liquid composition is introduced onto the tire internal surface, and forming the liquid composition into a gel; and foaming and drying the gelled liquid composition.

Abstract: Adhesive composition usable in particular as an adhesion primer, based on a polyisocyanate compound and a polyester or vinyl ester resin comprising (in particular hydroxyl) functional groups which are reactive towards isocyanate groups of said polyisocyanate, the total number of said isocyanate groups being in excess relative to the total number of said functional groups of the polyester or vinyl ester resin. The polyisocyanate compound is preferably a diisocyanate, the resin is preferably an epoxy vinyl ester resin, in particular novolac- and/or bisphenol-based. Said composition is usable, as an adhesion primer, in combination with a secondary adhesion layer preferably based on a polyvinylpyridine/stirene/butadiene elastomer and a polyester or vinyl ester resin.

Abstract: A tire having a reinforcement structure with improved resistance to a hinge effect is provided. More particularly, a tire is provided with a reinforcement structure that is positioned in the crown portion of the tire. The reinforcement structure has a circumferential extension modulus of about 5 GPa or greater and an axial plane shear modulus of about 10 MPa or greater. Exemplary embodiments of a tire with the reinforcement structure are provided.

Abstract: A process for manufacturing a composite block of closed geometry, in the form of a continuous ring, based on fibers and on a crosslinkable resin, by continuous winding and superposition of several layers of a tape of reinforcement fibers embedded in a matrix based on a composition comprising a crosslinkable resin. The process comprises from upstream to downstream, the following steps: producing a rectilinear arrangement (12) of reinforcement fibers (11) and conveying this arrangement in a feed direction (F); degassing the arrangement (12) of fibers by the action of a vacuum (13); after degassing, impregnating said arrangement (12) of fibers under vacuum with said resin composition in the liquid state (17); passing the pre-preg thus obtained through a die (20) to make said pre-preg into the form of a tape (21) composed of reinforcement fibers (11) in their liquid resin (17) matrix, the thickness of said tape being less than 0.

Abstract: Flexible tire having a flexible bearing structure extending circumferentially about an axis of rotation, a tread (13) on the radially outer periphery of the bearing structure, and at least one attachment zone (11), radially on the side of the axis of rotation, for the attachment of the bearing structure to a wheel center, the bearing structure comprising a plurality of supporting elements (2) extending essentially transversally, the supporting elements being juxtaposed circumferentially and distributed all around the circumference, the supporting elements (2) including a stack of metal strips (21) with interposition of a layer of sliding material (22) between each strip.

Abstract: Non-pneumatic resilient wheel (10), that is supported structurally and defines three perpendicular directions, circumferential (X), axial (Y) and radial (Z), this wheel comprising at least: a hub (11); an annular band referred to as a shear band (13) comprising at least one inner circumferential membrane (14) and one outer circumferential membrane (16) that are oriented in the circumferential direction X; and a plurality of support elements (12) that connect the hub (11) to the inner circumferential membrane (14), the wheel furthermore comprising: a flexible, circumferential contact membrane (21) oriented in the circumferential direction (X); a plurality of connecting elements (22) providing a connecting link between the circumferential contact membrane (21) and the annular shear band (13).

Abstract: Non-pneumatic resilient wheel (10), that is supported structurally and defines three perpendicular directions, circumferential (X), axial (Y) and radial (Z), this wheel comprising: a hub (11); an annular band referred to as a shear band (13) comprising at least one inner circumferential membrane (14) and one outer circumferential membrane (16) that are oriented in the circumferential direction X; and a plurality of support elements (12) that connect the hub (11) to the inner circumferential membrane (14)U. The two membranes (14, 16) are connected to one another by means of a series, that extends in the circumferential direction (X), of cylinders (15) referred to as connection cylinders, said connection cylinders (15) being non-touching in the circumferential direction X and having their generatrix oriented in the axial direction Y. The connection cylinders (15) are composite cylinders comprising fibers embedded in a resin matrix.

Abstract: A triazine polymer is provided that can be used as an electrolyte in a PEM fuel cell, and that enables membranes having a high chemical and dimensional stability, as well as a high ion conductivity. The triazine polymer is formed of at least a plurality of base structural units that include a moiety corresponding to a formula (I): in which: X1 and X2, which are identical or different, represent S, SO, or SO2; Ar1 and Ar2, which are identical or different, represent a substituted or unsubstituted phenylene group; Ar3 represents a substituted or unsubstituted phenyl group; and Tz represents a 1,3,5-triazine nucleus.

Abstract: Composite laminated product (1) that forms a deformable cellular structure includes an upper band (2) and a lower band (3) both oriented in the same main direction (X) between the two bands (2, 3) and connecting the latter, a series extends in the direction X, of cylinders (4) referred to as connection cylinders. The connection cylinders (4) are non-touching in the direction X and having their generatrix oriented along an axis Y perpendicular to the direction X. The connection cylinders are composite cylinders including fibers embedded in a resin matrix. Such a laminated product can be used as an elastic beam having a high resistance to flexural/compressive stresses and having a high endurance to such repeated or alternated stresses, in particular as a shear band in a non-pneumatic resilient wheel.

Abstract: An electrically powered vehicle includes a fuel cell with a decomposition reactor for decomposing sodium chlorate (NaClO3). Reaction products produced by the decomposition reactor include oxygen and sodium chloride (NaCl). Gaseous hydrogen is stored onboard the vehicle, such as in a hydrogen tank at a low pressure, using metal hydrides. The hydrogen from the hydrogen tank and the oxygen produced by the decomposition reactor are consumed by the fuel cell in order to produce electricity. The vehicle further includes a storage tank for storing the NaCl produced by decomposition of the NaClO3.

Abstract: A system is provided for producing hydrogen and oxygen based on decomposition of sodium chlorate (NaClO3). In a service station, NaClO3 is produced by a sodium chloride (NaCl) electrolyser. The service station is supplied with water (H2O), NaCl, and energy in order to carry out an electrolysis reaction in the electroyser, to produce NaClO3 and gaseous hydrogen (H2). The NaClO3 and H2 are supplied to vehicles. Each vehicle includes a reactor for decomposing the NaClO3 and producing reaction products of NaCl and oxygen, with the oxygen being supplied to a fuel cell.

Abstract: Adhesive composition usable in particular as an adhesion primer, based on a polyisocyanate compound and a polyester or vinyl ester resin comprising (in particular hydroxyl) functional groups which are reactive towards isocyanate groups of said polyisocyanate, the total number of said isocyanate groups being in excess relative to the total number of said functional groups of the polyester or vinyl ester resin. The polyisocyanate compound is preferably a diisocyanate, the resin is preferably an epoxy vinyl ester resin, in particular novolac- and/or bisphenol-based. Said composition is usable, as an adhesion primer, in combination with a secondary adhesion layer preferably based on a polyvinylpyridine/stirene/butadiene elastomer and a polyester or vinyl ester resin.

Abstract: A process for manufacturing a composite block of closed geometry, in the form of a continuous ring, based on reinforcing fibres and on a cross-linkable resin, by continuously winding in superposition a predetermined number Nc of layers of a tape of the reinforcing fibres embedded in a matrix based on a composition comprising the cross-linkable resin, the method comprising, from the upstream end downstream, the steps of: forming a tape made of the reinforcing fibres, the thickness of the tape being between 0.1 mm and 0.5 mm; depositing the tape on a support that dictates the final shape of the composite block, and winding the tape onto the support, in a single direction, by superposing the number Nc of layers in order directly to form the continuous ring on the support, Nc being less than 15.

Abstract: Non-pneumatic resilient wheel (10), that is supported structurally and defines three perpendicular directions, circumferential (X), axial (Y) and radial (Z). The wheel comprises a hub (11); an annular band referred to a shear band (13) comprising at least one inner circumferential membrane (14) and one outer circumferential membrane (16) that are oriented in the circumferential direction X; and a plurality of support elements (12) that connect the hub (11) to the inner circumferential membrane (14). The two membranes (14, 16) are connected to one another, in zones (17) referred to as anchoring zones, by means of a series (15A, 15B, 15C), that extends in the circumferential direction (X), of cylinder structures (15) referred to as connecting cylindrical structures that are non-touching in the circumferential direction X.