Gm Global Technolgoy Operations, Inc.

Albert-Ludwigs-Universitat Freiburg

Gerd Arnold

Ulrich Eberle

Dieter Hasenauer

Lee Curtis Whitehead

Gerhard Roewer

Daniel B O'Connell

William S Wheat

Jonas Bereisa

Florian O Mertens

Michael A Stratton

James V McManis

Felix Baitalow

Markus Lienkamp

Steffen Hausdorf

Steve McIlwaine

Gert Wolf

Albert Schweikard

A process for producing borazane from boron-nitrogen and boron-nitrogen-hydrogen containing BNH-waste products. The process includes reacting the BNH-waste products with a hydrogen halide, having the formula HX, wherein X is selected from the group consisting of F, Cl, Br, I, and combinations thereof, to form any of the following: a boron trihalide, having the formula BX, an ammonium halide, having the formula NHX, and hydrogen. The boron trihalide is then reacted with the hydrogen to form diborane, having the formula BH, and hydrogen halide. The ammonium halide is then converted to ammonia, having the formula NH, and hydrogen halide. The diborane is then reacted with the ammonia to form borazane, having the formula BHNH.

Procedure for the hydrogenation of BNH-containing compounds

A gas storage system that stores a gas by cryo-adsorption on high surface materials. The gas storage system includes an outer container having insulated walls and a plurality of pressure vessels disposed therein. Each of the pressure vessels includes a high surface material. A manifold assembly distributes the gas under pressure to the pressure vessels where the gas is adsorbed by cryo-adsorption using the high surface materials. A cooling fluid is provided within voids between the pressure vessels to remove heat as the pressure vessels are being filled with the gas.

Hydrogen storage tank system based on gas adsorption on high-surface materials comprising an integrated heat exchanger

A flexible, high pressure, tubular storage vessel for storing and dispensing a compressed gas. The vessel has a gas impermeable inner core member comprising a flexible material and defining an inner diameter of a fluid-carrying channel adapted to store the compressed gas. A flexible reinforcing material is circumferentially disposed about the inner core member. The flexible reinforcing material is surrounded by an air-tight gas barrier wrapping defining an outer diameter. The vessel is configured to be coiled or shaped having a plurality of bends. The bend areas may have a variable inner diameter and are preferably provided with additional reinforcing material.

Tube shaped high pressure storage tank

A cryogenic gas storage system for optimal desorption of adsorbed gases, wherein a gas storage material is subjected to enhanced, ample selected recirculation of gas of the same type as the adsorbed gas, at suitable temperature and pressure, so as to supply of heat energy to the material and thereby provide optimal desorption of the gas. Output gas is heated by ambient heat or dissipation heat utilizing at least one heat exchanger. A portion of the output gas goes to a gas consumer, the remainder is fed back to the container.

Direct gas recirculation heater for optimal desorption of gases in cryogenic gas storage containers

An apparatus for selectively adsorbing gas during adsorption processes and desorbing gas during desorption processes. A tube has a porous sidewall, and at each end is an end-fitting sealingly connected thereto. A particulate porous gas storage material is located within the tube, wherein the porosity prevents the material, but allows gases, to pass therethrough. A selected gas from a porous inner tube, a heating coil, or a heat exchanger located within the tube may provide heat for the desorption processes, and the selected gas or heat exchanger may provide cooling during the adsorption processes.

Apparatus for optimal adsorption and desorption of gases utilizing highly porous gas storage materials

A hydrogen-based propulsion system is provided for storing hydrogen feed gas which evaporates over time from a storage vessel containing liquid hydrogen as a fuel. In particular, this system enables the evaporated hydrogen feed gas to be stored for later use in the propulsion unit and also provides a system for enabling the stored hydrogen gas to be cooled by evaporated hydrogen feed gas in transit to the propulsion unit.

Boil-off compensating cryoadsorption container for liquid gas storage

An electrochemical engine for a vehicle comprises a storage tank containing hydrogen-retention material which reversibly takes-up and stores hydrogen at a hydrogen-storage temperature and releases it upon heating to a release temperature. A fuel cell stack using the released hydrogen produces electricity and heat by-product. A primary coolant flow circuit extends from a radiator, through the fuel cell stack and the storage tank, and back to the radiator, and has a coolant-distribution valve intermediate the fuel cell stack and the storage tank. A bypass coolant flow line extends from the coolant-distribution valve to the radiator. During operation, the heat by-product of the fuel cell stack is transferred via the primary coolant flow circuit to the storage tank for heating the hydrogen-retention material to release hydrogen for fueling the fuel cell stack. The electrochemical engine further comprises a heat generator within a superheater coolant flow loop having a bypass valve intermediate the storage tank and the radiator operable to keep coolant within the superheater coolant flow loop and a secondary pump to circulate the coolant. Coolant in the superheater coolant flow loop is heated by the heat generator and circulated through the storage tank to further release hydrogen gas from the hydrogen-retention material.

Electrochemical engine

A camshaft adjuster mounted between a taut strand and a slack strand of a chain connecting an intake camshaft to an exhaust camshaft has two tensioning shoes which are urged by a spring away from each other and against the inner sides of the chain strands. One tensioning shoe is mounted on a reciprocable piston within which a plunger carrying the other tensioning shoe is slidable against the force of the spring. The piston is moved against the taut strand by pressurization of a pressure chamber through a nonreturn valve and the plunger is moved with the piston so that the taut and slack strands are moved together and compression of the tensioning spring is thereby maintained relatively constant. A damping chamber may be provided with throttling bores in the piston and/or plunger to control the damping effect.

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Nauheim, Germany

Gerd Arnold