Abstract:
A process for ammonia saturation of a solid material capable of absorbing and desorbing ammonia, the solid material being composed of solid particles and includes placing the solid material in contact with a cooled surface, with the solid material being disposed against the cooled surface in a thin layer having a thickness of less than 100 mm. The process further includes injecting a stream of gaseous ammonia to be in contact with the solid material, while the solid material is in contact with the cooled surface.
Abstract:
An ammonia storage cartridge includes_an ammonia storage member having a storage material capable of absorbing or adsorbing ammonia. The storage member extends along a longitudinal axis. A heating element heats the storage member, and a hermetic tank houses the storage member. A tubular ammonia circulation element is arranged coaxially to the storage member, and includes_a first surface at least partially delimiting, with an element chosen from among the heating element and the hermetic tank, a circulation duct for the fluid ammonia. A second surface is arranged at least partially in contact with the storage member, and—at least one orifice passes radially through, allowing the circulation of fluid between the circulation duct and the storage member.
Abstract:
A process for ammonia saturation of a solid material capable of absorbing and desorbing ammonia, the solid material being composed of solid particles and includes placing the solid material in contact with a cooled surface, with the solid material being disposed against the cooled surface in a thin layer having a thickness of less than 100 mm. The process further includes injecting a stream of gaseous ammonia to be in contact with the solid material, while the solid material is in contact with the cooled surface.
Abstract:
An ammonia storage device has an enclosure, a solid material provided to absorb and desorb ammonia, and a heating member that heats the solid material. The storage device also has a metal foam that is positioned in the enclosure and which has open pores. The solid material essentially includes particles of suitable sizes to be housed in the pores.
Abstract:
An ammonia generating device is used for the treatment of exhaust gases of internal combustion engines, particularly for motor vehicles. The device includes a tank having a body capable of releasing ammonia by desorption. The device is also provided with a first single connection member comprising an electrical connection to supply the device with electricity and a fluid connection to allow evacuation of the ammonia produced following the desorption reaction.
Abstract:
A base for a pressurized gas tank, such as hydrogen, is substantially circular about an axis, and comprises a substantially cylindrical pipe of axis, which passes through the base in order to connect an outside of the tank to an inside of the tank. A substantially tubular notch of axis is arranged on an inner side of the tank and is suitable for receiving a sealing envelope. A substantially tubular sleeve of axis is arranged on the inner side of the tank and has an inner diameter substantially equal to a diameter of the pipe and an outer diameter substantially equal to an inner diameter of the notch, and also has an axial extension at least equal to that of the notch. An O-ring and a groove of axis, capable of receiving the O-ring, are arranged in a side wall of the notch. The base also comprises a body and a substantially tubular ring of axis, interfaced by a surface of revolution about the axis passing through the groove.
Abstract:
A device for fastening a tank to a vehicle is provided. The tank is substantially in the form of a cylinder with an axis arranged substantially horizontally. The device comprises at least two substantially identical, substantially flat frames, substantially perpendicular to the axis, comprising an opening presenting a shape substantially identical to a section perpendicular to the axis of the tank so as to be able to enclose, at least partially, the tank. The device further includes a fastening interface to the vehicle and an impact energy dissipation feature that dissipates impact energy transmitted to the tank according to a substantially horizontal direction substantially perpendicular to the axis. The impact energy dissipation features is arranged between the opening and the fastening interface.
Abstract:
A head for a pressurised gas tank comprises a structure having an opening, a head comprising a base disposed in the opening, and a valve assembled with the base. The base comprises a boss disposed outside the tank, at least one first channel comprising an axial part along the axis which is not open connected with the inside of the tank, and at least one radial part. The at least one radial part is pierced radially in the boss until the radial part joins the axial part. The valve has a substantially annular shape comprising a first bore corresponding to the boss in order to be able to be engaged on the boss, and at least one second channel, one end of which opens into the first bore axially in line with said at least one radial part. A tank comprising such a head is also provided.
Abstract:
A method for producing a composite tank is disclosed. The tank has a continuous fiber reinforcement, a prismatic shape, and a thickness “e” for the storage of a pressurized gas in an internal cavity of the tank. The tank comprises fibers extending between two non-contiguous faces of the tank through the internal cavity. The method includes: (i) obtaining a prismatic fibrous preform having a thickness “e” comprising three-dimensional continuous reinforcements throughout its thickness; (ii) impregnating an outer layer of the preform with a polymer over a thickness of less than ¼ of the thickness “e” so as to constitute a composite outer shell extending over all faces of the prism; and (iii) forming a sealed layer constituting an inner lining, having a thickness of less than 1/10th of the thickness “e” between the outer shell and the fibrous network contained in the cavity of the tank.
Abstract:
A protection device comprises a base having a general shape obtained by rotation about a longitudinal axis. The base is intended to be assembled with a hydrogen tank. The protection device comprises at least two legs extending from the base parallel to the longitudinal axis of the base.