Abstract: The screw of the invention is characterized by a threaded shank of which the foot segment is an elastomer and of which the head segment is a dimensionally stable material, preferably a plastic. The screw comprising an elastomer buffer integrated into it in this manner is used to decouple vibrations from two components to be connected without having to resort to any further accessory means. Preferably the screw is used as a locking screw and foremost is applicable to affix a motor vehicle water radiator to a base.

Abstract: A heat exchanger assembly is provided attachable to a frame of a vehicle. The heat exchanger assembly includes first and second support brackets attachable to a frame of a vehicle so as to define a mounting space therebetween having closed sides in two facing planes, the first and second support brackets each having a surface thereon transverse to the planes. The heat exchanger assembly also includes a first heat exchanger disposed within the mounting space, the first heat exchanger supported on the surfaces of the first and second brackets and releasably secured to the first and second support brackets. The heat exchanger further includes a second heat exchanger disposed within the mounting space, the second heat exchanger supported on the surfaces of the first and second brackets and releasably secured to the first and second support brackets separately from the first heat exchanger.

Abstract: Two alternative flow patterns through a heat exchanger core are provided by a tank (20) including a baffle (40) dividing the tank into first and second chambers (42 and 44). A first port (50) is provided in the baffle (40) to establish communication between the chambers (42 and 44). A second port (52) is provided to the second chamber (44). The tank (20) further incudes plugs (62 and 64) that are receivable in the tank (20) for alternatively closing the first port (50) while opening the second port (52), and opening the second port (52) while closing the first port (50).

Abstract: Fuel assembly for a nuclear reactor having a bundle of fuel rods of circular cross section extending parallel to one another and disposed at positions forming a raster, including a guide tube for a control rod extending parallel to the fuel rods in the bundle and occupying the positions for and having a cross section covering the cross section of a plurality of mutually adjacent fuel rods in the raster the cross section of the guide tube being defined by circular arcs conforming with those of the circular cross section of the adjacent fuel rods covered thereby and being connected by concave arcuate sections.

Abstract: A gas-coolant nuclear breeder reactor includes a core enclosed by a pressure vessel having a bottom beneath the core potentially capable of burning through if the core melts due to excessive operating temperatures. A basin is positioned beneath the core, either outside or inside of the pressure vessel, to intercept the melted core. The heat of the melted core must be dissipated rapidly because the reactor is enclosed by a steel containment vessel which might be unable to resist the internal pressure that would otherwise result from the heat. Therefore, means are provided for conducting a fluid coolant cooling the metal core, in the basin, from the latter to an extended area of the inside of the steel containment vessel which, being of relatively high heat conductivity, conducts the heat from the coolant to the atmosphere outside of the containment vessel. Cooling water may be sprayed on the outside of this containment vessel to assist in the dissipation of the heat.