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| Number | Title | Issue Date |
| 7359678 | Signal processing semiconductor integrated circuit device and wireless communication system The invention provides a signal processing semiconductor integrated circuit of the direct conversion system, which includes a dummy amplifier having the same circuit configuration as a low noise amplifier being the first stage amplifier, in which the DC offset calib... | 04/15/2008 |
| 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 |
| 7240723 | Tube bundle heat exchanger comprising tubes with expanded sections A heat exchanger useful for high temperature applications such as EGR cooling and fuel reformer applications comprises a tube bundle made up of a plurality of tubes, each having at least one end expanded to an enlarged polygonal cross-section, and having central por... | 07/10/2007 |
| 6958171 | Process for repairing coated substrate surfaces The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps: a) optionally, preparing a blemished area to be repaired, b) providing at least one backing film... | 10/25/2005 |
| 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 |
| 6644915 | Nuclear power station primary pump There is provided a nuclear power station primary pump of the type comprising a drive shaft for rotating a wheel, a heat exchanger, a thermal barrier cover comprising a peripheral skirt provided at its base with a circular end wall, and a diffuser compris... | 11/11/2003 |
| 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 |
| 5699395 | Segmented stayrod for restricting transverse displacement of a nuclear heat exchanger tube support plate Segmented stayrod for restricting transverse displacement of a nuclear heat exchanger tube support plate. The stayrod includes a first rod segment interposed between the tubesheet and the first support plate, the first rod segment having an externally thr... | 12/16/1997 |
| 5583898 | Apparatus and method for removing a wall portion from a wall of a tubular member Apparatus and method for removing a wall portion from a wall of a tubular member. The wall portion has a distal end portion and a proximal end portion. The wall portion is connected to the wall of the tubular member by a pair of ligatures, which remain af... | 12/10/1996 |
| 5517537 | Integrated acoustic leak detection beamforming system A system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field, and using three-dimensional absolute noise intensities to infer operational or performance characteristics of components or structures within the monitored... | 05/14/1996 |
| 5461648 | Supercritical water oxidation reactor with a corrosion-resistant lining A supercritical water oxidation reactor includes a vessel with an interior urface, two cooling sections, a heat exchanger, an oxygenating section, a pump, and a trap. The interior surface of the vessel has a corrosion-resistant, artificial ceramic or diamo... | 10/24/1995 |
| 5392324 | Device for and method of removing the residual power from a fast-neutron nuclear reactor at shutdown The nuclear reactor includes a fuel core (5) inside a vessel (2) and a system (1) for cooling the core (5), in which a liquid metal circulates and on which is placed at least one steam generator (15). The steam generator includes a casing (15a) in which t... | 02/21/1995 |
| 5335629 | Preheating steam generator In a preheating steam generator, the secondary water is introduced into a preheating space (34) by deformable extensions (52) from inverted J tubes (50) fixed to a semi-torroidal supply collector (48). The structure may be in the form of three tubular seg... | 08/09/1994 |
| 5331677 | Pressurized water reactor plant A pressurized water reactor plant includes a reactor vessel (1), a reactor coolant pump (5) having an inlet connected by coolant pipe (2) to an outlet of the reactor vessel, a steam generator (10) having an inlet connected by a high-temperature side pipe ... | 07/19/1994 |
| 5272739 | Method of eliminating heat exchanger tube vibration and self-preloading heat exchanger tube support for implementing same A steam generator with a heat exchanger in which the tube openings of the support plate are oversized relative to the outer diameter of the heat exchanger tubes, to facilitate assembly of the heat exchanger, and in which a positive contact preloading of t... | 12/21/1993 |
| 5265136 | Sodium cooled fast reactor A sodium cooled fast ractor comprises a reactor vessel in which a liquid metal coolant is accommodated, a core disposed substantially a lower central portion of the reactor vessel in an installed state, a core support structure secured to the reactor vess... | 11/23/1993 |
| 5094803 | Steam generator A steam generator utilized for a liquid-metal coolant reactor comprises an outer shell body in which an electromagnetic pump is arranged. The electromagnetic pump comprises a hollow cylindrical iron core provided with comb-shaped portion at an outer perip... | 03/10/1992 |
| 5078959 | Reactor block of a fast reactor, with an inner cylindrical vessel for removing the residual power of the core by natural circulation The invention refers to a solution for the reactor block of a sodium-cooled fast reactor, fitted with an inner cylindrical vessel. This forms the mechanical structure for hydraulic separation 7 between the primary sodium hot header 2 and the cold header 3... | 01/07/1992 |
| 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 |
| 4983353 | Novel passive approach to protecting the primary containment barrier formed by the intermediate heat exchanger from the effects of an uncontrolled sodium water reaction In a steam generator utilized with a liquid sodium cooled nuclear reactor, provision is made to vent the violent sodium water reaction emanating from a tube rupture casualty. The steam generator includes a sodium plenum at the bottom thereof containing a ... | 01/08/1991 |
| 4905757 | Compact intermediate heat transport system for sodium cooled reactor An intermediate heat transport system is disclosed for providing steam generation from the secondary nonradioactive liquid sodium heat extraction loop from a sodium cooled nuclear reactor. The transport system includes a unitary module combining the steam... | 03/06/1990 |
| 4842054 | Pump/heat exchanger assembly for pool-type reactor A heat exchanger and pump assembly comprising a heat exchanger including a housing for defining an annularly shaped cavity and supporting therein a plurality of tubes. A pump is disposed beneath the heat exchanger and is comprised of a plurality of flow c... | 06/27/1989 |
| 4802531 | Pump/intermediate heat exchanger assembly for a liquid metal reactor A heat exchanger and electromagnetic pump assembly is disclosed as comprising a heat exchanger including a housing for defining an annularly shaped cavity and supporting therein a plurality of tubes. An electromagnetic pump is disposed beneath the heat ex... | 02/07/1989 |
| 4799538 | Device for condensing steam under pressure and its application to the cooling of a nuclear reactor after an incident Device for condensing steam under pressure consisting of a unit incorporating a storage vessel (6) containing cooling water, a distribution and heat exchange unit (15) fixed inside the storage vessel (6) and a water supply (30,31) for replacing the water ... | 01/24/1989 |
| 4786463 | Emergency heat exchanger for cooling the primary fluid of a nuclear reactor, and a process for assembling this heat exchanger A liquid metal cooled pool type nuclear reactor incorporates an emergency heat exchanger having a novel geometry. The heat exchanger comprises circular and annular tube plates coaxially aligned. The tube bundle has a vertical straight part connected to th... | 11/22/1988 |
| 4762674 | Brazing sleeve having ceramic flux band and method for applying same A metal brazing sleeve includes a ceramic flux band formed on the sleeve adjacent an annular recess typically disposed near an open end of the sleeve for receiving a conventional braze preform, by adhering a powder flux to the sleeve by a tacky adhesive a... | 08/09/1988 |
| 4753773 | Double tube steam generator A double tube modular coil steam generator is provided in which a multiplicity of inner tubes conducting water are individually surrounded by outer tubes containing liquid metal as a heat transfer agent. The double tubes form into coils, providing a large... | 06/28/1988 |
| 4737337 | Nuclear reactor having double tube helical coil heat exchanger A nuclear reactor is provided characterized by a circulating liquid metal cooling system comprising a heat exchanger having a closed intermediate heat transfer fluid circuit in the form of a helical coil juxtaposed with the liquid metal coolant system, wh... | 04/12/1988 |
| 4705662 | Fast neutron nuclear reactor with a steam generator integrated into the vessel Fast neutron nuclear reactor of the type comprising a primary circuit integrated into a liquid metal-filled vessel and containing the reactor core, as well as means for circulating the said liquid metal and means for transferring the heat carried by the l... | 11/10/1987 |
| 4698201 | Heat exchanger equipped with emergency cooling means and fast neutron nuclear reactor incorporating such an exchanger The invention relates to a heat exchanger incorporating emergency cooling means, as well as to a fast neutron nuclear reactor incorporating such an exchanger. The emergency cooling means comprise an inlet pipe issuing into the secondary fluid inlet chambe... | 10/06/1987 |
| 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 |
| 4657071 | Heat exchanger incorporating an auxiliary cooling device A heat exchanger of the type incorporating an auxiliary cooling device includes an envelope with inlet and outlet windows for conducting a primary heat transfer medium through the envelope. A bundle of heat exchange tubes is mounted in the envelope with c... | 04/14/1987 |
| 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 |
| 4656001 | Device for the homogeneous mixing of liquids flowing at different temperatures Device for the homogeneous mixing of liquids flowing at different temperatures comprising a member connected to an inlet tube and to an outlet tube of a main circuit in which circulates a hot liquid, a cylindrical inlet of the member being connected to a ... | 04/07/1987 |
| 4644906 | Double tube helical coil steam generator A double tube helical coil steam generator is provided in which a multiplicity of inner tubes conducting water are individually surrounded by outer tubes containing liquid metal as a heat transfer agent. The double tubes form into helical coils, providing... | 02/24/1987 |
