The invention relates to a tank (2) for containing a pressurised gas, comprising: - an inner volume (4) for storing a pressurised gas, referred to as the "internal volume of the tank", - a heating member (12) provided in the internal volume (4) of the tank, - a temperature sensor (14) provided in the internal volume (4) of the tank, and - a protection member (16) for protecting the temperature sensor (14) provided in the internal volume (4) of the tank, between the heating member (12) and the temperature sensor (14).
An operation manifold is for a vehicle pressurized-fluid storage and distribution assembly that includes a plurality of pressurized-fluid tanks. The manifold includes a body having a plurality of communication openings to be in fluidic communication with a tank, a distribution line for distributing fluid stored in the tanks and which is formed in the body and arranged to be in fluidic communication with the tanks via an electrically operated valve and a manual valve, and a tank filling line formed in the body and arranged to be in fluidic communication with the tanks. The manual valve is also used to ensure fluidic communication between the tank filling line and the tanks
F17C 7/00 - Procédés ou appareils pour vider les gaz liquéfiés, solidifiés ou comprimés contenus dans des récipients sous pression, non couverts par une autre sous-classe
F17C 5/06 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz comprimés
3.
SAFETY DEVICE FOR A TANK INTENDED TO CONTAIN A PRESSURIZED GAS
The safety device (3) comprises:
a ventilation channel (9) intended to establish fluid communication between an internal volume (10) defined by a tank and the outside of the tank (2),
a safety piston (5) movable between a closure position in which it closes the ventilation channel (9), and a safety position in which it does not close the ventilation channel,
a first safety member (6) which is deformable and that keeps the safety piston in the closure position against an elastic force returning the safety piston to the safety position,
means (7) for deforming the first safety member (6), which means are movable between a resting position and a deformation position, and
at least a second safety member (8) intended, in a resting position, to hold the deformation means in the resting position against an elastic force returning the deformation means back to the deformation position when the second safety member experiences a temperature lower than a predetermined temperature and, in a working position, to release the elastic force for returning the deformation means in the deformation position when the second safety member experiences a temperature higher than the predetermined temperature,
The safety device (3) comprises:
a ventilation channel (9) intended to establish fluid communication between an internal volume (10) defined by a tank and the outside of the tank (2),
a safety piston (5) movable between a closure position in which it closes the ventilation channel (9), and a safety position in which it does not close the ventilation channel,
a first safety member (6) which is deformable and that keeps the safety piston in the closure position against an elastic force returning the safety piston to the safety position,
means (7) for deforming the first safety member (6), which means are movable between a resting position and a deformation position, and
at least a second safety member (8) intended, in a resting position, to hold the deformation means in the resting position against an elastic force returning the deformation means back to the deformation position when the second safety member experiences a temperature lower than a predetermined temperature and, in a working position, to release the elastic force for returning the deformation means in the deformation position when the second safety member experiences a temperature higher than the predetermined temperature,
The second safety member (8) is formed by a safety cable (16) made of a material that has low mechanical resistance to fire.
A method for leak monitoring a high-pressure vessel includes the following steps: (a) pumping and compressing a liquefied gas via a pump from a source of liquefied gas so as to obtain a pressure of 500 to 1000 bar, (b) vaporizing the liquefied gas, (c) compressing a tracer gas to a pressure of 500 to 1000 bar, (d) mixing the vaporized liquefied gas obtained in step (b) with the compressed tracer gas obtained in step (c) in a buffer tank, (e) filling the high-pressure vessel to be monitored with the mixture obtained in step (d), then (f) checking for tracer gas leaks on the high-pressure vessel to be monitored.
G01M 3/20 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des révélateurs particuliers, p. ex. teinture, produits fluorescents, produits radioactifs
F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p. ex. vaporisation
The invention relates to an assembly (24) formed by an air transport circuit (21) and a device (23) for thermally regulating the air transport circuit (21) for a fuel cell stack (6), the thermal-regulation device (23) comprising a heat exchanger (4) mounted on the upstream air duct (21A) in order to regulate the air temperature therein and supplied with heat-transfer fluid by a distribution element (8) selectively mixing the streams of heat-transfer fluid from the heat-transfer fluid inlet duct (25A) leading from the outlet of another heat exchanger (9) into the fuel cell stack (6), and from the heat-transfer fluid outlet duct (25B) leading out of the fuel cell stack (6) in order to control the air temperature in the upstream air duct (21A).
H01M 8/04014 - Échange de chaleur par des fluides gazeuxÉchange de chaleur par combustion des réactifs
H01M 8/04029 - Échange de chaleur par des liquides
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
H01M 8/04007 - Dispositions auxiliaires, p. ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur
H01M 8/04992 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible caractérisés par la mise en œuvre d’algorithmes mathématiques ou de calcul, p. ex. les boucles de commande de rétroaction, la logique floue, les réseaux neuronaux ou l’intelligence artificielle
The invention relates to a fuel cell system (2), which comprises: - a fuel cell stack (6) comprising an anode and a cathode; - a housing (8), in which the stack is arranged, having a ventilation inlet (10) and a ventilation outlet (12); - a compression device (18) arranged upstream of an inlet pipe (7a) of the cathode; - a water separator (24) connected to an outlet pipe (7b) of the cathode and configured to separate an incoming cathode gas flow (26) into a first outgoing flow comprising water-rich air, exiting via a first outlet (28a) of the water separator (24), and a second outgoing flow comprising water-poor air, exiting via a second outlet (28b) of the water separator (24); - an ejector (30) comprising a primary inlet (32a) connected to the first outlet (28a) of the water separator (24) and a secondary inlet (32b) connected to the ventilation outlet (12) of the housing (8); and - a turbine (38) arranged downstream of the second outlet (28b) of the water separator (24).
H01M 8/04111 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux utilisant un assemblage turbine compresseur
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
H01M 8/2475 - Enceintes, boîtiers ou récipients d’empilements d’éléments à combustible
H01M 8/10 - Éléments à combustible avec électrolytes solides
The invention relates to a pressurised tank comprising at least one composite reinforcing structure, at least partially coated with a protective coating, wherein the protective coating comprises at least two polyurea-based protective layers, at least one of the protective layers based on one or more polyureas further comprising at least one fire retardant that is an intumescent fire retardant, the one or more polyureas being one or more products of the reaction between at least one hardener and at least one resin, at least one resin of a first polyurea-based protective layer being different from at least one resin of a second polyurea-based protective layer, the protective layer containing the intumescent fire retardant being the outermost layer of the coating. The application also relates to a method for preparing such a tank and to a vehicle comprising same.
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
B32B 27/12 - Produits stratifiés composés essentiellement de résine synthétique adjacente à une couche fibreuse ou filamenteuse
B32B 27/40 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyuréthanes
B29C 70/32 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau sur un moule, un gabarit ou un noyau rotatifs
Fuel cell system (2) comprising: - a fuel cell stack (4) comprising an anode (6) and a cathode (8), - a cathode supply means (20) arranged for providing a cathode inlet (8a) with a gas comprising air and water, - an air compressor (22) arranged between the cathode supply means (20) and the cathode (8), and - a first dosing device (42a) and a second dosing device (42b), the first dosing device (42a) being configured to inject water upstream of the air compressor (22), and the second dosing device (42b) being configured to inject water downstream of the air compressor (22), and - a heat exchanger (24) arranged upstream of the air compressor (22), the heat exchanger (24) being arranged to receive heat from a cooling circuit of the fuel cell stack (4) and/or from a motor of the air compressor (22).
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyteHumidification ou déshumidification
9.
IMPROVED DEVICE FOR ATTACHING A TANK INTENDED TO CONTAIN A PRESSURISED GAS
The invention relates to a device (20) for attaching a tank which is intended to contain a pressurised gas for a motor vehicle. The device comprises a support member (32) consisting of a single cut and folded metal sheet element and comprising: a receiving region (34) which is delimited by the edges of a cut-out made in a central region of the metal sheet and configured to receive an end neck of the pressurised-gas tank; and a body (40) which is provided with two opposite reinforcing walls (42) which are obtained by folding the metal sheet and extend substantially in a plane transverse to the axis (X) along which the tank extends. The device also comprises a retaining collar (50) which is attached to the support member (32), the receiving region and the retaining collar (50) delimiting, between them, a passage opening (52) which is configured to receive the end neck of the tank.
A dome reinforcement shell suitable for a pressure vessel may include a winding of layers of fiber-reinforced composite material tapes, having a dome-shaped portion with a base and a central axis. The layers may include: at least one proximal layer of fiber-reinforced composite material, the at least one proximal layer having a start angle α1 with respect to the central axis measured at a first end of the proximal layer, with α1 being in a range of from 0° to 90°, and at least one distal layer of fiber-reinforced composite material, the at least one distal layer having a start angle α2 with respect to the central axis measured at a first end of the distal layer, with α2 strictly being in a range of from 0° to α1.
F17C 1/06 - Enveloppes protectrices constituées par un enroulement de bandes ou de matériaux filiformes p. ex. fils métalliques
B29C 53/60 - Enroulement et assemblage, p. ex. enroulement en spirale hélicoïdal en utilisant des surfaces de formage internes, p. ex. des mandrins
B29C 53/80 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
B29C 69/00 - Combinaisons de techniques de façonnage non prévues dans un seul des groupes principaux , p. ex. associations de techniques de moulage et d'assemblageAppareils à cet effet
B29C 70/30 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau
B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires
B29K 105/08 - Présentation, forme ou état de la matière moulée contenant des agents de renforcement, charges ou inserts de grande longueur, p. ex. ficelles, mèches, mats, tissus ou fils
A boss assembly may be configured for a pressure vessel having a liner defining a fluid storage chamber and a composite shell enclosing or encasing the liner. Such a boss assembly may include a dome reinforcement part made of fiber-reinforced composite material coupled to a boss part. The dome reinforcement part may be configured to be covered by the composite shell and configured to cover a dome portion of the liner. The boss part may be mechanically coupled to the dome reinforcement part during the dome reinforcement part fabrication.
A pressure vessel including an internal fluid storage chamber, and an outer composite structure enclosing or encasing the internal fluid storage chamber. The outer composite structure has a thickness containing both helical layers and hoop layers of reinforcing fibers, wherein at least 20% of a combined thickness of all of the helical layers are located within a 25% innermost thickness of the outer composite structure. The internal fluid storage chamber is defined by a liner including a generally cylindrical central portion having a first outer diameter at a first longitudinal end, and a first dome-shaped longitudinal end portion having a base portion and a first intermediate portion located between the generally cylindrical central portion and the base portion for connecting the first longitudinal end of the generally cylindrical central portion to the base portion of the first dome-shaped longitudinal end portion.
A pressure vessel including a liner defining an internal fluid storage chamber, a first dome reinforcement shell, a boss, and an outer composite structure enclosing or encasing the liner and the first dome reinforcement shell. The liner having a generally cylindrical central portion having a first outer diameter D1 at a first longitudinal end, a first dome-shaped longitudinal end having a base of a second outer diameter D2, the second outer diameter D2 being smaller than the first outer diameter D1, and a first intermediate portion located between the generally cylindrical central portion and the first dome-shaped longitudinal end and connecting the first longitudinal end of the generally cylindrical central portion to the base of the first dome-shaped longitudinal end.
A process for winding a filament around a winding support having a general cylindrical shape with dome-shaped longitudinal ends and having a roll axis, by which the winding support is held by a holding device fixed to a base. The following steps occur in synchronization: (i) feeding a filament, by at least one primary feeding device and at least one secondary feeding device, towards the winding support; (ii) translating the primary feeding device and the secondary feeding device with respect to the base in parallel to the roll axis of the winding support; and (iii) rotating the winding support around its roll axis with respect to the base, where the movement of the primary feeding device and the secondary feeding device are symmetric one of another.
B29C 70/32 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau sur un moule, un gabarit ou un noyau rotatifs
B29C 70/22 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins deux directions formant une structure bidimensionnelle
The invention relates to a vessel (10) comprising a liner (12) having a neck (14), a reinforcing shell (18) covering the liner (12), and an endpiece (20) arranged in the neck (14), which comprises: - an axial opening (22); - a first annular projection (31) extending radially outwards with respect to the axial opening (22); - a second annular projection (32) extending radially outwards with respect to the axial opening (22), arranged axially outwards with respect to the first projection (31); and - an outer axial end (24) extending at least partially outside the vessel (10). The liner (12) extends from the first annular projection (31) to the second annular projection (32) covering at least one portion of the first annular projection (31) and the vessel (10) comprises a sealed contact surface (SG) between the endpiece (20) and the neck (14) extending between the first projection (31) and the second projection (32), as well as a contact surface (SE) between the endpiece (20) and the reinforcing shell (18), which extends axially between the second projection (32) and the outer axial end (24).
A method for measuring mechanical strength of a pressurized gas storage tank for a vehicle is provided, the method including providing a tank having at least one opening, introducing an expandable element into the tank via the opening, connecting the expandable element to a pipe for a liquid, filling the expandable element with liquid, exerting a pressure, Pint, on all interior walls of the tank by means of the expandable element filled with liquid, measuring a possible deformation of the tank, emptying the liquid contained in the expandable element, and removing the expandable element from the tank via the opening. Also provided is a device for measuring mechanical strength of a pressurized gas storage tank for a vehicle.
The invention relates to a pressurized gas tank (3) for a vehicle, comprising: - a liner (7) made of plastic material, - a composite reinforcing structure (9) wound around the liner (7), - an electrical heating device (11) configured to keep the liner (7) at a temperature above a predetermined threshold, the electrical heating device (11) comprising a heating strip (21) arranged between the liner (7) and an outer surface (23) of the composite reinforcing structure (9), and having an inner surface (32) in contact with the liner (7).
This tank (2) for containing a pressurized gas comprises a liner (4) made of plastic material and having the general shape of a cylinder with a main axis (5), the liner (4) comprising a neck (6) surrounding an axial opening of the liner (4). The tank additionally comprises an end-piece (8) at least partially formed in the neck (6) of the liner (4), a reinforcement ring (14) provided for reinforcing the neck of the liner and being rigidly connected to and non-detachable from the neck (6) of the liner (4), and fastening means (24) for fastening the end-piece (8) to the ring (14) for reinforcing the neck of the liner.
A process for winding a filament around a winding support. The winding support has a cylindrical shape with dome-shaped longitudinal ends and a roll axis, and is held by a holding device fixed to a base. The process includes the following, occurring in synchronization, feeding a filament, by means of at least one feeding device, towards the winding support, rotating the winding support with respect to the base around a pitch axis of the winding support, rotating unlimitedly the at least one feeding device around a yaw axis of the winding support with respect to the base, and/or rotating unlimitedly the winding support around the yaw axis of the winding support with respect to the base, and rotating unlimitedly the winding support with respect to the base around the roll axis of the winding support.
B29C 53/60 - Enroulement et assemblage, p. ex. enroulement en spirale hélicoïdal en utilisant des surfaces de formage internes, p. ex. des mandrins
B29C 53/66 - Enroulement et assemblage, p. ex. enroulement en spirale hélicoïdal en utilisant des surfaces de formage internes, p. ex. des mandrins tournant autour de l'axe d'enroulement avec un élément d'alimentation d'enroulement qui se déplace axialement
B29C 53/70 - Enroulement et assemblage, p. ex. enroulement en spirale hélicoïdal en utilisant des surfaces de formage internes, p. ex. des mandrins avec un élément d'alimentation d'enroulement rotatif et se déplaçant axialement
B29C 53/80 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
B29C 70/32 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau sur un moule, un gabarit ou un noyau rotatifs
B29K 77/00 - Utilisation de polyamides, p. ex. polyesteramides, comme matière de moulage
B29K 105/08 - Présentation, forme ou état de la matière moulée contenant des agents de renforcement, charges ou inserts de grande longueur, p. ex. ficelles, mèches, mats, tissus ou fils
The operation manifold (3) for a vehicle pressurized-fluid storage and distribution assembly (1), the fluid storage and distribution assembly comprising a plurality of pressurized-fluid tanks (4), comprises: - a body (6) having a plurality of communication ports (9) configured to be in fluidic communication with a tank; a distribution line (7) for distributing fluid stored in the tanks and which is formed in the body and configured to be in fluidic communication with the tanks via an electrically operated valve (10) and a manual valve (11); and - a tank filling line (8) formed in the body and configured to be in fluidic communication with the tanks. The manual valve is also used to ensure fluidic communication between the tank filling line and the tanks.
The invention relates to a safety device (3) comprising: - an aeration channel (9) fluidly connecting an internal volume (10) defined by a tank and the outside of the tank (2);; - a safety piston (5) that is movable between a position in which it blocks the aeration channel (9) and a safety position in which it does not block the aeration channel; - a first deformable safety member (6) that keeps the safety piston in the blocking position against a spring force for returning the safety piston to the safety position; - means (7) for deforming the first safety member (6), which means are movable between a rest position and a deformation position; and - at least a second safety member (8) intended, in the rest position, to hold the deformation means in the rest position against a spring force for returning the deformation means back to the deformation position when the second safety member experiences a temperature lower than a predetermined temperature and, in the work position, to release the spring for for returning the deformation means back to the deformation position when the second safety member experiences a temperature higher than a predetermined temperature, the second safety member (8) being formed by a safety line (16) made of a material that has low mechanical resistance to fire.
A reinforcement element, suitable for composite pressure vessel, may be configured to be inserted and to fill in a hollow shaft of a plastic liner of the composite pressure vessel, the hollow shaft connecting opposite walls of the liner. The reinforcement element may include a central part and two external parts constituted by a plurality of continuous fibres impregnated with a first resin. The central part of the reinforcement element may have a dimension substantially equal to the dimension of the hollow shaft and being a full part. The two external parts may be able to be unfolded and fixed on the external surface of opposite walls of the liner. A composite pressure vessel may include such a reinforcement element.
Type V pressure vessel having a gas barrier metal layer Type V pressure vessel (1) comprising an external composite structure (10) enclosing or encasing an internal composite structure (20), wherein the internal composite structure (20) comprises a first inner surface (21) defining an internal gas storage chamber (30), a first gas barrier metal layer (22) made from a first metallic material deposited on the first inner surface (21) using a plasma-based metal deposition process, a cylindrical central part (24), and a boss assembly (23) coupled to the cylindrical central part (24) by means of a first coupling means, the boss assembly (23) comprises a dome-shaped cap (26) and a boss part (25) coupled to the dome-shaped cap (26) by means of a second coupling means.
A method for performing pressure tests on a composite pressure vessel, including providing a composite pressure vessel with at least one opening an injection of a liquid; injecting the liquid in the composite pressure vessel through the at least one opening to reach a threshold pressure; measuring an external volume variation of the composite pressure vessel; draining the liquid from the composite pressure vessel through the at least one opening; and drying an inside cavity of the composite pressure vessel with a drying gas. The drying the inside cavity of the composite pressure vessel is performed at a pressure inside the composite pressure vessel, which is lower than an external pressure. A device for manufacturing and pressure testing a composite pressure vessel.
The invention relates to a pressure vessel (4; 4') comprising an internal fluid storage chamber (3) and an outer composite structure (20) having a thickness (T) comprising both helical layers (20a) and hoop layers (20b) of reinforcing fibers, wherein at least 20% of the combined thickness of all helical layers (20a) are located within the 25% innermost thickness (T) of the outer composite structure (20). The internal fluid storage chamber (3) is defined by a liner (6) comprising a first dome-shaped longitudinal end portion (12) having a first intermediate portion (13). The pressure vessel (4; 4') further comprises a first dome reinforcement shell (16) having a shape complementary to the shape of the first dome-shaped longitudinal end portion (12) and its first intermediate portion (13), said first dome reinforcement shell (16) being fitted on the liner (6) only on the first dome-shaped longitudinal end portion (12) and its first intermediate portion (13).
an electrically operated valve (7) which is arranged at one end of the use collector duct (5) and selectively closes or opens the fluid passage through the opening (19).
The invention also relates to a vehicle comprising such a storage and dispensing assembly (1).
End fitting for a pressurized fluid reservoir, the reservoir comprising a liner (2) which comprises a tubular central portion (20) with a first cylindrical outer surface (21), characterized in that the end fitting (1) comprises an end portion (10) with a second cylindrical outer surface (11), the end portion (10) being configured to be positioned coaxially with respect to the tubular central portion (20), the second cylindrical outer surface (11) forming a radially flush extension of the first cylindrical outer surface (21), the end fitting (1) being configured to be mounted in a sealed manner on the outside of a neck (22) of the liner (2) by means of an annular sealing joint (4) arranged coaxially with respect to the end portion (10) in an annular groove (12) provided in an inner recess (13) of the end fitting (1) such that the internal pressure in the reservoir has a tendency to push the neck (22) radially outwards against the annular sealing joint (4).
A valve for a fluid reservoir includes an inner portion configured to be arranged inside the reservoir, the inner portion including at least one portion of a sensor for measuring at least one parameter characterizing the fluid, the valve being capable of receiving information from a computer, external to the valve, the valve also includes an outer portion configured to be arranged outside the reservoir, the outer portion having an internal computer that acquires data from the at least one sensor, communicates bidirectionally with the external computer, takes into account information received from the external computer and data from the at least one sensor for controlling at least one actuator of the valve, and measures at least one current parameter in the electrical connection.
An automatic obstruction device for closing a filling circuit for filling a tank with fluid includes: a movable element movable between a non-obstruction position of the filling circuit, in which the movable element offers resistance to the fluid compatible with the filling of the tank, and an obstruction position of the filling circuit, in which the movable offers a resistance to the fluid that is incompatible with the filling of the tank; a holding element of the movable element holding the movable element in the non-obstruction position, and allowing movement of the movable element toward the obstruction position; and a first device of non-reversible movement or of non-reversible modification of the holding element allowing movement of the movable element toward the obstruction position, and being controllable by a control device.
Boss assembly for a pressure vessel Boss assembly (1) for a pressure vessel (2) having a liner (3) defining a fluid storage chamber and a composite shell (4) enclosing or encasing the liner (3), the boss assembly (1) comprises a dome reinforcement part (1a) made of fiber-reinforced composite material coupled to a boss part (1b), the dome reinforcement part (1a) being configured to be covered by the composite shell (4) and configured to cover a dome portion (3a) of the liner (3), wherein the boss part (1b) is mechanically coupled to the dome reinforcement part (1a) during the dome reinforcement part fabrication.
A pressure vessel (4) comprises: - a liner (6) defining an internal fluid storage chamber (3) and having: • a generally cylindrical central portion (8) having a first outer diameter D1 at a first longitudinal end (8a), • a first dome-shaped longitudinal end (12) having a base (12a) of a second outer diameter D2, the second outer diameter D2 being smaller than the first outer diameter D1, and • a first intermediate portion (13) located between the generally cylindrical central portion (8) and the first dome-shaped longitudinal end (12) and connecting the first longitudinal end (8a) of the generally cylindrical central portion (8) to the base (12a) of the first dome-shaped longitudinal end (12), wherein said first dome-shaped longitudinal end (12) of the liner (6) has a dome contour which is less concave toward the internal fluid storage chamber (3) than a dome-shaped longitudinal end having a geodesic dome contour, - a first dome reinforcement shell (16) having a shape complementary to the shape of both the first dome-shaped longitudinal end (12) and the first intermediate portion (13) of the liner (6), the first dome reinforcement shell (16) being fitted on both the first dome-shaped longitudinal end (12) and the first intermediate portion (13) of the liner (6), - a boss (14), and - an outer composite structure (20) enclosing or encasing the liner (6) and the first dome reinforcement shell (16).
B29C 70/30 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau
B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires
F17C 1/06 - Enveloppes protectrices constituées par un enroulement de bandes ou de matériaux filiformes p. ex. fils métalliques
33.
PROCESS AND SYSTEMS FOR WINDING A FILAMENT AROUND A WINDING SUPPORT
In this process for winding a filament (22) around a winding support (6) having a general cylindrical shape with dome-shaped longitudinal ends and having a roll axis (8), the winding support (6) being held by a holding device (4) fixed to a base (16), the following steps occur in synchronization: (i) feeding a filament (22), by means of at least one primary feeding device (18) and at least one secondary feeding device (20), towards the winding support (6), (ii) translating the primary feeding device (18) and the secondary feeding device (20) with respect to the base (16) in parallel to the roll axis (8) of the winding support (6), (iii) rotating the winding support (6) around its roll axis (8) with respect to the base (16), wherein the movement of the primary feeding device (18) and the secondary feeding device (20) are symmetric one of another.
B29C 53/66 - Enroulement et assemblage, p. ex. enroulement en spirale hélicoïdal en utilisant des surfaces de formage internes, p. ex. des mandrins tournant autour de l'axe d'enroulement avec un élément d'alimentation d'enroulement qui se déplace axialement
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
B29C 70/24 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins trois directions formant une structure tridimensionnelle
B29C 53/80 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
34.
PROCESS AND SYSTEMS FOR WINDING A FILAMENT AROUND A WINDING SUPPORT
In this process for winding a filament around a winding support (6) having a general cylindrical shape held by a holding device (4) fixed to a base (18), the following steps occur in synchronization: (i) feeding a filament (24), by means of at least one feeding device (22), towards the winding support (6), (ii) rotating the winding support (6) with respect to the base (18) around a pitch axis (10) of the winding support (6), (iiiA) rotating unlimitedly the at least one feeding device (22) around a yaw axis (12) of the winding support (6) with respect to the base (18), and/or (iiiB) rotating unlimitedly the winding support (6) around the yaw axis (12) of the winding support (6) with respect to the base (18), (iv) rotating unlimitedly the winding support (6) with respect to the base (18) around a roll axis (8) of the winding support.
A gas discharge device, for a vehicle powered by compressed gas, includes: a gas manifold having a hollow body and including at least one port configured to be in fluid communication with a compressed gas tank, and an opening for discharging gas into the atmosphere; and a pipe configured to connect the port to the compressed gas tank. The pipe is freely translatable in the port to enable a first end of the pipe to move translationally along an axis in the port.
F17C 7/00 - Procédés ou appareils pour vider les gaz liquéfiés, solidifiés ou comprimés contenus dans des récipients sous pression, non couverts par une autre sous-classe
F17C 1/00 - Récipients sous pression, p. ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables
int.int., on all the interior walls of the tank (1) by means of the expandable element (2) filled with liquid (6); measuring a possible deformation of the tank (1); emptying the liquid (6) contained in the expandable element (2); and, removing the expandable element (2) from the tank (1) via the at least one opening (10).
An internal casing for a pressurized fluid storage tank for a motor vehicle includes: a hollow body includes a layer made of a first polymer material; and a neck arranged on the hollow body and delimiting an opening of the hollow body, the neck receiving an interface part mounted on the neck in a sealed manner by a gasket arranged between the neck and the interface part. The neck is made of a composite material composed of a second polymer material loaded with reinforcing fibers, the composite material having a deformation resistance than that of the first polymer material. The neck is joined to the hollow body by molecular entanglement of polymer chains of the first polymer material and polymer chains of the second polymer material. Methods for manufacturing such an internal casing, and a storage tank including such an internal casing are disclosed.
B32B 5/02 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments
38.
COMPOSITE PRESSURE VESSEL WITH REINFORCEMENT ELEMENT
The invention relates to a reinforcement element for composite pressure vessel, said reinforcement element being provided to be inserted and to fill in a hollow shaft of a plastic liner of the composite pressure vessel, said hollow shaft connecting opposite walls of the liner, said reinforcement element comprising a central part and two external parts constituted by a plurality of continuous fibres impregnated with a first resin, the central part of the reinforcement element having a dimension substantially equal to the dimension of the hollow shaft and being a full part, the two external parts being able to be unfolded and fixed on the external surface of opposite walls of the liner. The invention concerns also composite pressure vessel comprising a reinforcement element and the method for manufacturing said composite pressure vessel.
A plastic tank liner for the storage of a pressurized fluid includes: two ends; two elongated cylindrical sections, the two cylindrical sections having different diameters; and one connecting section connecting the two cylindrical sections. The connecting section has a concave portion connected to the cylindrical section of smaller diameter, and a convex portion adjacent to the cylindrical section of larger diameter. The convex portion has an isotensoid shape. Two convex domes are located on both ends of the plastic tank liner so that each of the domes is connected to a different cylindrical section.
A pressure vessel for storing a fluid at high pressure includes: a liner and a composite laminate shell coupled to an outer surface of the liner. The liner has an inner surface delineating an inner wall of a cavity and the cavity includes a dome-shaped region having a central opening. An access channel is traversing the composite laminate shell for providing an access to the cavity. The central opening is facing an entrance of the access channel. A boss connector, located or partly located within the access channel, includes an inner bore part configured for receiving a valve or a plug, and an outer neck part including a plurality of interspaced rib elements protruding into the composite laminate shell for optimizing a pressure distribution in the laminate shell.
The invention relates a pressure vessel (100) configured for storing a fluid under pressure, said pressure vessel comprising: a thermoplastic liner (40) having a cylindrical section (41), a first rounded end section (42) and a second rounded end section (42); a reinforcement structure (50) made of a composite material, said reinforcement structure surrounding at least the cylindrical section of the thermoplastic liner; and a local reinforcement layer (20).
It is an object of the invention is a fuel cell system architecture provides a good weight distribution, improved trunk space without reducing the security against front-end and rear end collision. The above objective is accomplished by a fuel cell vehicle comprising:—A rear vessel for hydrogen gas located in the rear part of the vehicle,—A front vessel for hydrogen gas located in the front part of the vehicle,—A hydrogen dosing unit,—A hydrogen control unit connected to the hydrogen dosing unit, to the rear vessel and to the front vessel, the hydrogen control unit being provided with first means for equalizing the pressure between the first rear vessel and the front vessel, the hydrogen control unit being provided with second means for transferring hydrogen at a predetermined pressure level to the hydrogen dosing unit from the two vessels,—An air supply,—A fuel cell connected to the hydrogen dosing unit and the air supply, the air supply being provided with means for providing the fuel cell with air, the hydrogen dosing unit providing the fuel cell with hydrogen,—A battery,—A DC/DC-converter,—The fuel cell being connected to the battery so as to provide the battery with energy, the battery and the DC/DC-converter being interconnected so as to exchange energy, the fuel cell and the battery, being located at the bottom of the vehicle.
B60L 58/40 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la commande d'une combinaison de batteries et de piles à combustible
B60K 1/04 - Agencement ou montage des ensembles de propulsion électriques des dispositifs d'emmagasinage de l'énergie électrique pour la propulsion
The invention is related to a tank system for storing a high pressure gas. The invention provides a system for storing a gas, the system comprising at least two tanks, a first tank and a last tank, the first tank comprising an inlet port connected to a system inlet, the last tank comprising an outlet port connected to a system outlet, each tank being provided with an on tank valve comprising an inlet port, an outlet port, and a communication line leading into the tank, each on tank valve comprising a communication line between the inlet port and the outlet port of the on tank valve, the outlet port of the on tank valve of the first tank being connected to the inlet port of the on tank valve of the last tank, the at least two tanks being serially connected.
A composite pressure vessel that includes a monolayer liner and a reinforcing structure arranged on top of the liner. The liner is made by injection moulding and includes at least two shells weldable together. Each shell is made of a polymer composition including at least 45% by weight of an aromatic polyamide relative to the total weight of the polymer composition, and at least 10% by weight of an aliphatic polyamide relative to the total weight of the polymer composition.
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
B29C 65/00 - Assemblage d'éléments préformésAppareils à cet effet
B29C 65/02 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage
B32B 27/34 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyamides
The invention relates to a pressure vessel system comprising a pressure vessel for storing a gas under pressure, at a potential leakage interface of the pressure vessel, one or more gas sensitive parts configured to undergo a modification when the gas passes along the potential leakage interface; said leakage interface being an interface within the pressure vessel; and one or more detection modules configured to detect a modification of the one or more gas sensitive parts. The invention also relates to a connection assembly comprising a first connection part and a second connection part, said first and second connection part being configured to realize a gas tight connection; one or more gas sensitive parts arranged at a connection interface between the first connection part and the second connection part, and one or more detection modules configured to detect a modification of the one or more gas sensitive parts.
It is proposed a plastic liner for the storage of hydrogen, comprising: a first barrier layer (3), a second barrier layer (7) configured to be an inner layer in contact with hydrogen, at least one intermediate layer arranged between the first and the second barrier layers, wherein the second barrier layer (7) has a lower hydrogen permeability than said at least intermediate layer such that the second barrier layer (7) slows down the migration of hydrogen inside said at least one intermediate layer.
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
B32B 7/02 - Propriétés physiques, chimiques ou physicochimiques
B32B 27/20 - Produits stratifiés composés essentiellement de résine synthétique caractérisée par l'emploi d'additifs particuliers utilisant des charges, des pigments, des agents thixotropiques
F17C 1/02 - Récipients sous pression, p. ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables comportant des renforcements
F17C 1/00 - Récipients sous pression, p. ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables
F17C 13/00 - Détails des récipients ou bien du remplissage ou du vidage des récipients
B32B 27/30 - Produits stratifiés composés essentiellement de résine synthétique comprenant une résine vinyliqueProduits stratifiés composés essentiellement de résine synthétique comprenant une résine acrylique
A system for a motor vehicle, the system including a container having a side made of a plastic material, and a component sealingly attached to the container side. The component has at least one portion provided with microgrooves that form a sealing area between the component and the container side.
Method for manufacturing a storage tank comprising an inner liner, an outer filament winding and a connecting part. The method comprises the steps of: blow molding the inner liner by extruding a parison, pinching the inner liner at least at one extremity to create a pinch and then blowing the parison; providing the connecting part with a slot of appropriate shape and size to receive a part of the pinch; inserting the part of the pinch in the slot so as to secure the inner liner and the connecting part; and applying the outer filament winding around the liner and the connecting part.
brevets
