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| Number | Title | Issue Date |
| 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 |
| 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 |
| 6784443 | Storage vessels and related closure methods A preferred storage system includes a container, a closure lid, and a compression link. Preferably, the container includes an outer wall, which defines an interior, and a first open end. The closure lid is configured to be inserted within the open end of the contain... | 08/31/2004 |
| 5940463 | In-vessel structure for fast reactors An in-vessel structure for a top-entry type fast reactor wherein a core is positioned in the interior of a reactor vessel, an upper core structure being provided above the core, a coolant passing through a cold leg piping inserted from an upper portion of... | 08/17/1999 |
| 5158741 | Passive cooling system for top entry liquid metal cooled nuclear reactors A liquid metal cooled nuclear fission reactor plant having a top entry loop joined satellite assembly with a passive auxiliary safety cooling system for removing residual heat resulting from fuel decay during shutdown, or heat produced during a mishap. Th... | 10/27/1992 |
| 4973444 | Nuclear reactor installations In a liquid metal cooled fast neutron nuclear reactor plant, surfaces (12) which are immersed in the flowing liquid metal and are vulnerable to liquid metal temperature fluctuations are provided with fins (20) defining cavities (22) for at least temporari... | 11/27/1990 |
| 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 |
| 4832904 | Emergency cooling device for a fast neutron nuclear reactor The cooling device comprises a heat exchanger (7) immersed in the hot header (4) of the nuclear reactor vessel, a substantially vertical tubular conduit (14) passing through the stepped wall (2) vertically below the exchanger (7), a bell (16) fixed under ... | 05/23/1989 |
| 4762667 | Passive reactor auxiliary cooling system An entirely passive auxiliary core cooling system for a liquid-metal reactor wherein a path for natural circulation through a radial plenum and radially outermost core assemblies to the heat generating inner core assemblies is provided, the flow being coo... | 08/09/1988 |
| 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 |
| 4687624 | Liquid metal cooled fast breeder reactor A liquid metal cooled fast breeder reactor which permits a closer installation of a fuel handling mechanism relative to an upper reactor core structure of the reactor. The fuel handling mechanism has a fuel handling body without a housing, and has a rotat... | 08/18/1987 |
| 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 |
| 4589375 | Steam generator for a liquid metal-cooled reactor A steam generator for transferring the heat carried by a liquid metal to a water - steam circuit. It comprises a drainage tank directly suspended at the lower end of the envelope. A drainage tube connected to the bottom of the envelope is disposed within ... | 05/20/1986 |
| 4487742 | Fast neutron nuclear reactor with internal capillary structure piping The invention relates to a fast neutron nuclear reactor equipped with residual power removal devices. Each device comprises an evaporator incorporating a bundle of tubes in glove finger-like form immersed in the liquid metal contained in the reactor vesse... | 12/11/1984 |
| 4366113 | Installation for a nuclear power station with staggered swimming pools In an installation for a nuclear power station comprising a "reactor building" with a first swimming pool for handling of fuel units and a fuel building with a second swimming pool for the transfer, storage and deactivation of the units, the second swimmi... | 12/28/1982 |
| 4362694 | Liquid metal-cooled nuclear reactor Integrated nuclear reactor cooled by a liquid metal and incorporating a main vessel sealed in its upper part by a slab, an inner vessel containing the core, the latter resting on a system for the positioning and supply of the core with liquid metal and wh... | 12/07/1982 |
| 4295934 | Liquid-metal-cooled nuclear reactor A liquid metal cooled nuclear reactor comprising a core, a main vessel comprising a first supporting means, a primary vessel mounted inside said main vessel and coaxial therewith, at least one exchanger outside said vessels. Said primary vessel comprises ... | 10/20/1981 |
| 4280873 | Nuclear power installation with loop arrangement Nuclear power installation with liquid metal cooling, including a reactor cavity, a primary circulatory loop carrying heat from the reactor cavity, a secondary coolant loop, an intermediate heat exchanger for transferring heat from the primary loop to the... | 07/28/1981 |
| 4257480 | Heat exchanger and method A heat exchanger for transferring heat from primary fluid to secondary fluid and particularly one which is especially suitable for cooling a fast breeder nuclear reactor is disclosed herein. The heat exchanger includes a plurality of thermally conductive,... | 03/24/1981 |
| 4256538 | Liquid metal cooled fast breeder nuclear reactor A liquid metal cooled fast breeder nuclear reactor comprising a fuel assembly supported on a diagrid and submerged in a pool of liquid metal coolant within a containment vessel. The diagrid is of triple component construction comprising a short cylindrica... | 03/17/1981 |
| 4249995 | Liquid-metal cooled reactor with practically static intermediate zone In a fast reactor constituted by an open-topped main vessel containing liquid metal coolant and an inner vessel mounted within the main vessel, a transverse skew wall forming an inner vessel extension is associated with a baffle which extends above the sk... | 02/10/1981 |
| 4246069 | Heat-generating nuclear reactor A reactor vessel filled with coolant fluid is divided by a wall into an upper region and a lower region which contains the reactor core, part of the coolant fluid in the upper region being injected into the lower region. The injection flow rate is regulat... | 01/20/1981 |
| 4233116 | Nuclear reactor coolant transport system A system for transporting reactor coolant in nuclear reactors using a liquid coolant. The system diverts a portion of the output from the main circulating pump in the nuclear reactor primary flow system and introduces this diverted coolant back into the s... | 11/11/1980 |
| 4186050 | Nuclear reactors A nuclear reactor having a large prompt negative temperature coefficient of reactivity. A reactor core assembly of a plurality of fluid-tight fuel elements is located within a water-filled tank. Each fuel element contains a solid homogeneous mixture of 50... | 01/29/1980 |
| 4069101 | Self-compensating level control for sump suction pumps Apparatus as disclosed for eliminating drawdown of the level of liquid in a sump suction type of pump having a cover gas above the liquid therein. The liquid level is maintained throughout all pump operating speeds and without the need to vary the cover g... | 01/17/1978 |
| 4056439 | Secondary heat transfer circuits for nuclear reactor plant A secondary heat transfer circuit for a nuclear reactor comprises a steam generator module, an intermediate heat exchanger, and a pump which circulates a heat transfer liquid, e.g. liquid sodium, between the heat exchanger and the steam generator module. ... | 11/01/1977 |
| 4031706 | Superheating steam from light water nuclear reactors Heat from an exothermic chemical reaction(s) is employed to superheat and/or reheat steam generated by a light water nuclear reactor (LWR). The use of such a source of heat enables the selection of a temperature for the heating limited by thermodynamic co... | 06/28/1977 |
| 3951738 | Nuclear reactor coolant and cover gas system A core cooling system is disclosed for a nuclear reactor of the type utilizing a liquid coolant with a cover gas above free surfaces of the coolant. The disclosed system provides for a large inventory of reactor coolant and a balanced low pressure cover g... | 04/20/1976 |
