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| Number | Title | Issue Date |
| 7907695 | Natural circulation boiling water reactor and handling method thereof A natural circulation boiling water reactor provides to a chimney with a plurality of tubes. That is to say, each of the plurality of tubes partitions the coolant flow path above a core. Thus, unlike the conventional natural circulation boiling water reactor providi... | 03/15/2011 |
| 6928133 | Pressurized light water reactor having flow converting grooves for emergency core cooling water A direct vessel injection-type pressurized light water reactor (DVI-PLWR), in which an emergency core cooling water (ECC) is directly injected into a downcomer of a reactor vessel, is disclosed. In order to reduce the ratio of ECC bypass from the downcomer to a brok... | 08/09/2005 |
| 6445758 | Internal structure of nuclear reactor with coolant flow stabilizing facility Within an upper plenum of a nuclear reactor, a portion of a heated coolant flows radially outward from a central portion of a core barrel (30) towards outlet nozzles (12) in a region of an upper core plate (21) extending outside of an outer periphery of t... | 09/03/2002 |
| 5173251 | Mixing apparatus for fluids A mixing apparatus for a plurality of turbulently flowing fluid flows varying in temperature and/or composition includes a mixing chamber having a non-circular or predetermined cross section and a straight or curved center line. A plurality of single-cond... | 12/22/1992 |
| 4788033 | Calandria A calandria for use in conducting the hot coolant of a nuclear reactor transversely. The calandria includes an upper plate and a lower plate which support tubes. The plates and tubes are enclosed in a shell which extends above the upper plate and has a su... | 11/29/1988 |
| 4759898 | Fast neutron nuclear reactor having an improved core cover plug In a liquid metal-cooled fast neutron nuclear reactor which has a vessel sealed by a horizontal slab on which is suspended a core cover plug, the lower part of said plug comprises a deflecting grid, optionally duplicated by a thermal protection grid. Each... | 07/26/1988 |
| 4725400 | Nuclear reactor plant housed in a steel pressure vessel, with a gas cooled, small high temperature reactor A nuclear reactor plant housed in a steel pressure vessel with a small high temperature reactor, together with a steam generator arranged over said reactor and with at least two circulating blowers connected in parallel with each other and following the s... | 02/16/1988 |
| 4665866 | Grid-type flow distribution baffle An improved, grid-type flow distribution baffle for both providing lateral support for an array of heat exchange tubes and for generating a sludge-sweeping water current within a steam generator is disclosed herein. Generally, the improved baffle comprise... | 05/19/1987 |
| 4554129 | Gas-cooled nuclear reactor A gas-cooled nuclear reactor includes a central core located in the lower portion of a prestressed concrete reactor vessel. Primary coolant gas flows upward through the core and into four overlying heat-exchangers wherein stream is generated. During norma... | 11/19/1985 |
| 4547334 | Low exchange element for nuclear reactor A flow exchange element is presented which lowers temperature gradients in fuel elements and reduces maximum local temperature within high temperature gas-cooled reactors. The flow exchange element is inserted within a column of fuel elements where it ser... | 10/15/1985 |
| 4504439 | Gas cooled nuclear reactor It is desirable to being able to vary the temperature of a loop exposed to a flow of hot gases in gas cooled nuclear reactor installations without thereby affecting the gas temperature in the other loops. It should be possible in an extreme case to take t... | 03/12/1985 |
| 4490328 | Bottom shield for a gas cooled high temperature nuclear reactor A gas cooled, high temperature nuclear reactor is provided with a base plate arranged under the reactor core and over the bottom of the prestressed concrete pressure vessel serving as the bottom shield. The bottom shield comprises at least two plates arra... | 12/25/1984 |
| 4381282 | Radiation shield and shielded gas conduit for a reactor pressure vessel An improved design for shielding the component parts of a gas turbine power plant from radiation in a gas transport conduit is disclosed. The radiation shield and shielded gas conduit utilize a shielding arrangement comprising a displacement body arranged... | 04/26/1983 |
| 4258781 | Suspension for a thermally heavy load cylindrical pipe assembly A suspension for a thermally heavy load cylindrical pipe assembly of relatively large diameter, according to which the suspension includes a plate with chambers therein. This plate is at its circumference provided with inlets for a cooling medium, while a... | 03/31/1981 |
| 4234384 | Support structure for the core of a high capacity gas cooled high temperature reactor Disclosed is a support structure consisting of several layers of prismatic graphite blocks arranged over each other. The layers are constructed as closed units without expansion gaps and the blocks of one layer are keyed together with the blocks of the ad... | 11/18/1980 |
| 4212351 | Articulated module flow guide system A system is disclosed for promoting selective shell-side flow distribution between and providing structural support for modular straight tube bundles in a heat exchanger or the like, wherein a plurality of flow guides, each of which includes three axi-sym... | 07/15/1980 |
| 4121973 | Nuclear reactor with fuel column coolant regulation A nuclear reactor is described in which a core having a plurality of columnar fuel regions with coolant passages therein and valve means for each fuel region regulating, separately, the flow of coolant therethrough, is provided with collecting means at th... | 10/24/1978 |
