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| Number | Title | Issue Date |
| 8081729 | Heat exchanger assembly, in particular for a high-temperature nuclear reactor The invention relates to an assembly for exchanging heat between first and second fluids, the assembly comprising a central manifold communicating with one of the inlet and the outlet for the first fluid; an annular manifold disposed around the central manifold and ... | 12/20/2011 |
| 7308070 | Stable and passive decay heat removal system for liquid metal reactor A decay heat removal system for a liquid metal reactor, in which a decay heat exchanger (DHX) is installed concentrically with an intermediate heat-exchanger (IHX) in the same cylinder which separates the DHX and IHX from the reactor pool fluid, and serves to remove... | 12/11/2007 |
| 7218068 | Power source for re-circulation pump and method of controlling the same A variable-voltage variable-frequency power source for an electric motor that drives a re-circulation pump for a boiling water nuclear reactor. The power source has a semiconductor electric power converter and a speed controller for controlling the semiconductor ele... | 05/15/2007 |
| 7154190 | All-weather energy and water production via steam-enhanced vortex tower The space-saving, long operating, and cheap vortex plants of large power intensively combine solar, either waste and secondary, or geothermal heating of slightly pressured water with use of wind, giving competitive electricity and water production without firing of ... | 12/26/2006 |
| 6944255 | Nuclear reactor A nuclear reactor in which a secondary or tertiary coolant system of a nuclear steam supply system is simplified, comprising: a reactor vessel (2) which integrates a reactor core (1); a first coolant (3) which is stored in the reactor vessel ( | 09/13/2005 |
| 6914955 | Heat exchanger tube support structure A support plate for retaining tube array spacing within a heat exchanger tube and shell structure. The support plate having a plurality of individual tube receiving apertures formed therein. Each aperture has at least three inwardly protruding members and bights are... | 07/05/2005 |
| 6810101 | Heat exchanger tube support structure A support plate for retaining tube array spacing within a heat exchanger tube and shell structure. The support plate having a plurality of individual tube receiving aperture formed therein. Each apertures has at least three inwardly protruding members and bights are... | 10/26/2004 |
| 6795518 | Integral PWR with diverse emergency cooling and method of operating same Passive emergency cooling in response to a loss of coolant accident (LOCA) in a PWR, having an integral reactor pressure vessel incorporating the steam generators and housed in a small high pressure containment vessel, is provided by circulating cooling water throug... | 09/21/2004 |
| 6519308 | Corrosion mitigation system for liquid metal nuclear reactors with passive decay heat removal systems A liquid metal nuclear reactor is described. The reactor includes a concrete reactor silo, and at least one primary vessel located in the reactor silo and coupled to a reactor shield deck. Each primary vessel is substantially surrounded by a containment v... | 02/11/2003 |
| 6498827 | Heat exchanger tube support structure A support plate for retaining tube array spacing within a heat exchanger tube and shell structure. The support plate having a plurality of individual tube receiving apertures formed therein. Each apertures has at least three inwardly protruding members an... | 12/24/2002 |
| 6328541 | Thermal barrier and reactor coolant pump incorporating the same A thermal barrier for a nuclear reactor coolant pump includes a stack of pancake cooling coils encircling the pump shaft where it enters the pump chamber. This stack of coiling coils has an irregular peripheral surface formed by axially extending, diametr... | 12/11/2001 |
| 5610957 | Reactor core coolant flow rate control system for a BWR type nuclear power plant A reactor core coolant flow rate control system for a BWR type nuclear power plant in which electric power is generated by a turbine-driven generator driven by a steam turbine rotating under the work of a main steam generated from a cooling water recircul... | 03/11/1997 |
| 5289511 | Liquid-metal cooled nuclear reactor In a liquid-metal cooled nuclear reactor using liquid metal as a coolant and having vessels and pipings for accommodating the liquid metal coolant, at least pat of the region surrounding a coolant pressure boundary defined at outer wall surfaces of the ve... | 02/22/1994 |
| 5263070 | Nuclear reactor with multiple internal heat exchangers A tank type nuclear reactor comprises an outer shielding wall structure, a reactor vessel installed in the shielding wall structure and provided with an inner sealed space in which a primary liquid coolant circulates, a reactor core disposed in the reacto... | 11/16/1993 |
| 5263068 | Method for arranging the power terminals of coils in annular flow electromagnetic pumps for nuclear fission reactors Stator coils for linear flow electromagnetic induction pumps for pumping liquid metal circulating through a hydraulic system are provided with advantageous deployments of coil power terminals and leads.... | 11/16/1993 |
| 5073335 | BWR turbopump recirculation system A recirculation system is disclosed for driving reactor coolant water in an annular downcomer defined between a reactor vessel and a core shroud spaced radially inwardly therefrom. The system supplies feedwater to the vessel and to a turbopump disposed in... | 12/17/1991 |
| 5021211 | Liquid metal cooled nuclear reactors with passive cooling system A liquid metal cooled nuclear reactor having a passive cooling system for removing residual heat resulting from fuel decay during reactor shutdown. The passive cooling system comprises a plurality of cooling medium flow circuits which cooperate to remove ... | 06/04/1991 |
| 5017102 | Magnetically coupled pump and nuclear reactor incorporating said pump A magnet pump has a magnet coupling for magnetically coupling an inner ring yoke and an outer ring yoke so as to magnetically transmit a torque from driving part to driven part of the pump to rotate the driven part. The magnet pump comprises magnetized ma... | 05/21/1991 |
| 5013519 | Autonomous, decentralized fast breeder reactor system An autonomous, decentralized fast breeder reactor includes a single reactor main vessel which houses a plurality of small-size reactor subsystems each having a small-scale fast breeder reactor core, and a plurality steam generator subsystems. These subsys... | 05/07/1991 |
| 4938662 | Mechanical pump equipment Of the components making up the pump, one part including the bearing is removably assembled into the other part so that the bearing is received in the other part. This structure allows easy removal of the first part of the pump components from the second ... | 07/03/1990 |
| 4879089 | Liquid metal cooled nuclear reactors In a liquid metal cooled fast breeder nuclear reactor of the pool type, the hot and cold pools (13, 19) are separated by an intermediate plenum (24) which, under steady state conditions, encloses a volume of substantially stagnant liquid metal to form a t... | 11/07/1989 |
| 4874575 | Multiple discharge cylindrical pump collector A space-saving discharge collector 40 for the rotary pump 28 of a pool-type nuclear reactor 10. An annular collector 50 is located radially outboard for an impeller 44. The annular collector 50 as a closed outer periphery 52 for collecting the fluid from ... | 10/17/1989 |
| 4859402 | Bottom supported liquid metal nuclear reactor A liquid metal nuclear reactor has a sodium tank, having a closed arcuate bottom and upstanding cylindrical wall for containing a reactor core in a pool of liquid metal coolant, which is disposed in a guard tank having a bottom and upwardly extending cyli... | 08/22/1989 |
| 4849159 | Coolant-pumping system for a nuclear reactor In a known design of liquid metal cooled fast fission nuclear reactor, the primary pumps (22) plug into the outboard ends of the high pressure pipes (28), leading to the development of a vertical load which has to be supported by substantial additional st... | 07/18/1989 |
| 4828788 | Support device for a discharge tank associated with a suspended pump of a nuclear reactor The pump (8) comprises a vertical body (8a) and a discharge sphere (10) in its lower part. Discharge pipes (14) are connected to the sphere (10). The sphere (10) is suspended from the plating (4) of the reactor through a flexible metal strip (20). The sph... | 05/09/1989 |
| 4808080 | Flow coupler assembly for double-pool-type reactor A liquid metal pump assembly is disclosed as being adapted to be disposed as one of a plurality of like pump assemblies in a continuous, closed array about a core of a nuclear reactor system. Each pump assembly comprises a pipe for receiving and directing... | 02/28/1989 |
| 4780272 | Device for suspending a structure A device for suspending a core cover from a sealing slab of a fast neutron nuclear reactor of the type comprising a vertically axed vessel structure filled with liquid metal, closed by the slab and containing the reactor core. The device comprises an uppe... | 10/25/1988 |
| 4780270 | Passive shut-down heat removal system An improved shut-down heat removal system for a liquid metal nuclear reactor of the type having a vessel for holding hot and cold pools of liquid sodium is disclosed herein. Generally, the improved system comprises a redan or barrier within the reactor ve... | 10/25/1988 |
| 4765948 | Coolant circulation system for a liquid metal nuclear reactor A liquid metal circulation system is disclosed which is suitable for use in connection with a nuclear reactor. The circulation system of the invention includes an electromagnetic pump having a central core body featuring a helically configured, six pole m... | 08/23/1988 |
| 4755352 | System of generating electricity using a swimming pool type nuclear reactor A system of generating electricity is disclosed. The system employs a new kind of swimming pool type nuclear reactor which is safe and can be made operable unattended but at the same time raises the mean pool temperature by forcing moderator-coolant-shiel... | 07/05/1988 |
| 4753576 | Magnetofluidynamic generator for a flow coupler A pump assembly is disclosed for transferring the internal energy from a second or intermediate liquid metal to a first or primary liquid metal. The pump assembly comprises a pump duct for receiving the first liquid metal and a primary generator duct for ... | 06/28/1988 |
| 4749542 | Removable check valve for use in a nuclear reactor A removable check valve for interconnecting the discharge duct of a pump and an inlet coolant duct of a reactor core in a pool-type nuclear reactor. A manifold assembly is provided having an outer periphery affixed to and in fluid communication with the d... | 06/07/1988 |
| 4734248 | Conduit assembly for use in a nuclear reactor A metal conduit assembly for interconnecting the discharge duct of the pump and the inlet coolant duct or reactor core in a pool-type nuclear reactor. The conduit assembly comprises an upper section for connection to the discharge of a reactor pump, a low... | 03/29/1988 |
| 4681731 | Nuclear reactor construction with bottom supported reactor vessel An improved liquid metal nuclear reactor construction has a reactor core and a generally cylindrical reactor vessel for holding a large pool of low pressure liquid metal coolant and housing the core within the pool. The reactor vessel has an open top end,... | 07/21/1987 |
| 4676947 | Device for thermal protection of a component of a fast-neutron nuclear reactor The invention relates to a device for thermal protection of a component of a fast-neutron nuclear reactor consisting of at least one shell (10, 11) of a diameter smaller than the diameter of the passage (2) for the component (4) but greater than the diame... | 06/30/1987 |
| 4671922 | Nuclear reactor cooled by a liquid metal The invention relates to a nuclear reactor cooled by a liquid metal comprising a vessel (12) containing the reactor core (24), a vessel shaft (18) and a sealing slab (14). The bottom (12a) of the vessel rests on the bottom (52) of the vessel shaft via sup... | 06/09/1987 |
| 4666652 | Fast neutron nuclear reactor comprising a suspended sealing slab and main vessel A fast neutron nuclear reactor, in which the main vessel and the slab for sealing said vessel are separately suspended on the upper part of the vessel shaft. An outer ferrule of the slab is directly anchored in the vessel shaft by tie rods and is supporte... | 05/19/1987 |
| 4664876 | Fast breeder reactor A reactor core of a fast breeder reactor is supported by a core support within a reactor vessel. The reactor vessel is provided with a first or lower sodium chamber for accommodating low temperature sodium, a second or intermediate sodium chamber for acco... | 05/12/1987 |
| 4655996 | East neutron reactor having a storage structure independent of the core structure Fast neutron nuclear reactor, which comprises a vessel containing a liquid cooling metal, a core immersed in this metal, the vessel having a flooring on which rests a structure for the core, said core being constituted by a juxtapositioning of assemblies ... | 04/07/1987 |
| 4645638 | Hanging core support system for a nuclear reactor For holding the reactor core in the confining reactor vessel, a support is disclosed that is structurally independent of the vessel, that is dimensionally accurate and stable, and that comprises tandem tension linkages that act redundantly of one another ... | 02/24/1987 |
