Abstract: A cable has an outer sheath made from fluoropolymer and a conductor core having several individual elements which are surrounded by an inner sheath which penetrates into an intermediate chamber between the individual elements. A heat resistant film is disposed between the inner sheath and the outer sheath and is formed of a metal layer and a support layer.

Abstract: A cable has an outer sheath made from fluoropolymer and a conductor core having several individual elements which are surrounded by an inner sheath which penetrates into an intermediate chamber between the individual elements. A heat resistant film is disposed between the inner sheath and the outer sheath and is formed of a metal layer and a support layer.

Abstract: O-ring/back-up ring systems that are suitable for use in high pressure applications, including those of 70 MPa automotive hydrogen storage applications, to form a seal between first and second connector bodies. Such sealing systems comprise a back-up ring having a base portion and a flange portion, wherein such ring is configured to prevent extrusion of an O-ring into a gap existing between the back-up ring and a groove into which the back-up ring and O-ring are disposed. High pressure gas storage systems comprising such sealing systems, and methods of sealing a connection in a high pressure hydrogen storage system using such sealing systems.

Abstract: Passive temperature supervision devices for detecting temperature changes in compressed gaseous fuel storage systems of fuel cell systems. More specifically, systems and methods for detecting temperature changes in compressed gaseous fuel storage systems such as compressed gaseous fuel tanks of motor vehicles, where increases and decreases in temperature can be detected without the need for electric supervision systems.

Abstract: Passive temperature supervision devices for detecting temperature changes in compressed gaseous fuel storage systems of fuel cell systems. More specifically, systems and methods for detecting temperature changes in compressed gaseous fuel storage systems such as compressed gaseous fuel tanks of motor vehicles, where increases and decreases in temperature can be detected without the need for electric supervision systems.

Abstract: O-ring/back-up ring systems that are suitable for use in high pressure applications, including those of 70 MPa automotive hydrogen storage applications, to form a seal between first and second connector bodies. Such sealing systems comprise a back-up ring having a base portion and a flange portion, wherein such ring is configured to prevent extrusion of an O-ring into a gap existing between the back-up ring and a groove into which the back-up ring and O-ring are disposed. High pressure gas storage systems comprising such sealing systems, and methods of sealing a connection in a high pressure hydrogen storage system using such sealing systems.

Abstract: In a motor vehicle, a gap-shaped opening is provided between lateral end sections of the windshield and adjacent A-pillars. The air flows through this gap-shaped opening when the motor vehicle is moving. This reduces the formation of high loss vortices in the lateral area of the motor vehicle.

Abstract: In a motor vehicle, a gap-shaped opening is provided between lateral end sections of the windshield and adjacent A-pillars. The air flows through this gap-shaped opening when the motor vehicle is moving. This reduces the formation of high loss vortices in the lateral area of the motor vehicle.

Abstract: A pressure vessel for storing fuel cell reactants is disclosed. The pressure vessel includes an inner shell formed from a moldable material and forming a cavity therein, and an outer shell formed about the inner shell. A heat transfer member is disposed within the vessel cavity. The heat transfer member is thermally coupled a suitable external thermal mass external the pressure vessel to minimize the effect of thermal energy on the vessel. The heat transfer member may be a metallic structure within the cavity, or may be integrated within the inner shell on an inner shell surface. The external thermal mass may further be thermally coupled to either an active or a passive external thermal handling system for controlling the temperature of the fluid within the vessel.

Abstract: A master/slave tank system for storing a compressed hydrogen gas, where the system employs an electrically driven shut-off valve for each tank in the system. The tank system includes a master tank and a slave tank for storing the gas. A first line is coupled to the master tank for providing the gas stored therein to a fuel cell stack. A master tank shut-off valve is positioned in the first line between the master tank and a pressure regulator. A second line is coupled to the slave tank for providing the gas stored therein to the master tank as the pressure difference between the slave tank and the master tank changes. An electrically driven slave tank shut-off valve is positioned within the second line, where the slave tank shut-off valve automatically closes the second line in response to an increase in the differential pressure across the slave tank valve.

Abstract: A master/slave tank system for storing a compressed hydrogen gas, where the system employs an electrically driven shut-off valve for each tank in the system. The tank system includes a master tank and a slave tank for storing the gas. A first line is coupled to the master tank for providing the gas stored therein to a fuel cell stack. A master tank shut-off valve is positioned in the first line between the master tank and a pressure regulator. A second line is coupled to the slave tank for providing the gas stored therein to the master tank as the pressure difference between the slave tank and the master tank changes. An electrically driven slave tank shut-off valve is positioned within the second line, where the slave tank shut-off valve automatically closes the second line in response to an increase in the differential pressure across the slave tank valve.

Abstract: A device for storing compressed gas includes a cylindrical pressure vessel having inlet and outlet conduits for a cooling/heating fluid and for compressed gas. Arranged in the interior of the pressure vessel are plural storage layers which are separated from one another and contain solid matter for charging with compressed gas. The storage layers have a volume, which depends on a charging state of the storage layers with compressed gas, and are separated dust-tight from one another about their circumference. Bounding one side of each storage layer is a spring layer which assumes a filtering function with respect to the solid matter of the storage layer, wherein the solid matter in the storage layer is charged with compressed gas via the spring layer or compressed gas is discharged from the solid matter in the storage layers via the spring layer. The other opposite side of the storage layer is bounded by a gastight cooling/heating layer for passage of the cooling/heating fluid.

Abstract: A heating element for a fuel cell system comprising a body constructed of a thermally conductive material. The interior of the body has a plurality of fluid flow channels formed therein. A hydrogen absorption material capable of absorbing hydrogen in an exothermic reaction to form a metal hydride in a reversible reaction is disposed within the channels. A conduit provides fluid communication to and from the channels and the exterior of the body which is in the form of a storage vessel. Hydrogen is supplied via the conduit to the flow channels and is absorbed by the hydrogen absorption material which generates heat that is transferred through the thermally conductive material to regions surrounding the storage vessel. Methods of heating a fuel cell with a device storing material capable of an exothermic reaction that generates heat are also provided.