|
Match
|
Document |
Document Title |
|
|
7627073 |
Method for designing a nuclear fuel assembly with damping guide tube
A method to design a nuclear fuel assembly having the following steps including establishing the falling speed of the control rod upon entry into the lower damping portion when the control cluster...
|
|
|
6813327 |
Core support for an F-lattice core of a boiling water nuclear reactor
A core plate assembly for a nuclear reactor includes a plurality of support beams, a flat plate positioned on top of the support beams, a plurality of control rod guide tube openings arranged in...
|
|
|
6574295 |
Boiling water type nuclear reactor use control rod
In order to provide a boiling water type nuclear reactor use control rod with a guide use roller which improves corrosive environment at a clearance in the guide use roller and suppresses a...
|
|
|
6411668 |
Guide tube of a nuclear reactor fuel assembly
A tubular blank ( 22 ) is rolled on a mandrel ( 14 ) in a pilgrim rolling mill. In a first rolling stage, a first part of the blank ( 22 ) is rolled on a first part ( 18, 19 ) of the mandrel ( 14...
|
|
|
5754608 |
Control cluster for a nuclear reactor
The control cluster is usable for power regulation and for load following. It comprises a spider from which are suspended rods containing a column of neutron-absorbing material. The...
|
|
|
5711629 |
Reconstitutable rod cluster control assembly with biased driver
The present invention is directed to a rod connector assembly for removably securing a control rod to a spider structure. The rod connector assembly includes a tubular boss fixedly secured to the...
|
|
|
5089212 |
Apparatus for controlling the power output of a nuclear reactor
A nuclear reactor, such as advanced pressurized water reactor, with controlled power output includes a reactor core having a cross section in a given plane with a center of area and axes of...
|
|
|
4986960 |
Two piece end fitting with hairpin springs
An end fitting for a fuel assembly. A lower plate having a pin extending perpendicular thereto at each corner slidably receives a main body portion on the pins. Stop washers or nuts on the pins...
|
|
|
4759896 |
Method and apparatus for improving flux reduction factors
A method and apparatus is disclosed for reducing the exposure of pressure vessel welds to fast neutron fluxes. Localized peripheral core areas are provided with rod assemblies which may be made up...
|
|
|
4702882 |
Quick disconnect top nozzle for a nuclear fuel assembly
A method and apparatus for removably attaching a top nozzle to a nuclear fuel assembly to permit easy access to the fuel rods. The quick disconnect top nozzle structure includes guide thimbles...
|
|
|
4666653 |
Fuel assembly with cooled guide tubes for a nuclear reactor
The invention relates to a fuel assembly with cooled guide tubes for a nuclear reactor. It consists of a bundle of parallel fuel tubes (1) held in a structure comprising spacer grids, guide tubes...
|
|
|
4642216 |
Control rod cluster arrangement
A control rod assembly arrangement is disclosed for a light water nuclear reactor. Absorber rods are combined with stainless steel rods to achieve a more homogeneous poison distribution effect...
|
|
|
4597935 |
Nuclear reactor having a control cluster guide
Control cluster guide devices, for light water cooled nuclear reactors, including housings. The reactor includes means outside the core for guiding control clusters (7) during their movements. The...
|
|
|
4376092 |
Nuclear fuel assembly wear sleeve
An improved control rod guide tube for use in a fuel assembly in a nuclear reactor. The guide tube extends the complete length of the fuel assembly and has its upper end fastened in a cylindrical...
|
|
|
4001078 |
Control apparatus
A nuclear reactor system is described in which flexible control rods are used to enable insertion of the control rods into guide holes in the core which are distributed over an area larger than the...
|
|
|
3994775 |
Control rod system useable for fuel handling in a gas-cooled nuclear reactor
A control rod and its associated drive are used to elevate a complete stack of fuel blocks to a position above the core of a gas-cooled nuclear reactor. A fuel-handling machine grasps the control...
|
|
|
3977939 |
Nuclear reactor internals arrangement
A nuclear reactor internals arrangement is disclosed which facilitates reactor refueling. A reactor vessel and a nuclear core is utilized in conjunction with an upper core support arrangement...
|
|
|
3940311 |
Nuclear reactor internals construction and failed fuel rod detection system
A system is provided for determining during operation of a nuclear reactor having fluid pressure operated control rod mechanisms the exact location of a fuel assembly with a defective fuel rod. The...
|
|
|
3940310 |
Nuclear reactor
Coolant fluid within the nuclear reactor is fed under pressure to the lower end of the guide tubes. Control rods are disposed within the guide tubes and are movable hydraulically by means of the...
|
|
|
3930938 |
Attachment and locking of finger control rods in a nuclear reactor of BWR type
In a nuclear reactor of the BWR type having finger control rods mounted in guide tubes and having a member movable upwardly to push the control rods into the guide tubes, the control rods are...
|
|
|
3929565 |
Nuclear reactor with groups of elongated absorber units carried by control rods
A nuclear reactor has a core formed of a plurality of fuel assemblies arranged in a polygonal lattice. Control rods are provided, each comprising a plurality of elongated absorber units distributed...
|
|
|
3888732 |
Inlet for fuel assembly having finger control rods
In a nuclear reactor with vertically arranged fuel assemblies positioned on supporting members and with control rods displaceably arranged in guide tubes between the fuel rods inside the fuel...
|
|
|
3879259 |
Core module for nuclear reactors
A core module for nuclear reactors includes a core support grid having hollow tubes extending upwardly therefrom and fuel assemblies mounted on the upper ends of said tubes with their interiors in...
|
|
|
3861999 |
NUCLEAR REACTOR ARRANGEMENT AND METHOD OF OPERATING SAFE EFFECTIVE TO INCREASE THE THERMAL AMARGIN IN HIGH POWER DENSITY REGIONS
A nuclear reactor cooled by a moderating fluid and a method of operating such a reactor wherein a portion of the coolant directed through the reactor and over the fuel elements is conveyed in...
|
|
|
3849257 |
GUIDE STRUCTURE FOR CONTROL ELEMENTS
A guide structure for aligning fuel assemblies forming a nuclear core of a nuclear reactor and for guiding a plurality of control elements for telescoping movement within guide channels of fuel...
|
|
|
3734825 |
DEVICE FOR CONTROLLING AND SHUTTING-DOWN PRESSURIZED-WATER NUCLEAR REACTOR
A dual control member serves to control and shutdown a pressurized-water nuclear reactor and has a control element that includes a plurality of finger control rods secured to a central drive rod...
|
|
|
3664923 |
FAST NEUTRONIC REACTOR UTILIZING PLUTONIUM 240 FUEL
A fast neutron fission chain reactor utilizes plutonium enriched in the isotope plutonium 240 as its principal fuel. A novel reactor concept employs a core comprising a critical mass of the subject...
|
|
|
3652394 |
DEVICE FOR CONTROLLING THE REACTIVITY OF NUCLEAR REACTORS
Device for controlling the reactivity of a nuclear reactor cooled by light water and including a reactor core formed of fuel elements, includes a tube system passing through the reactor core and...
|
|
|
3607629 |
DRIVE MECHANISM FOR CONTROL ELEMENTS
A nuclear reactor is disclosed wherein hydraulic drive mechanisms are provided to vary the location of a plurality of neutron-absorbing control elements associated with selected fuel assemblies....
|
|
|
3519535 |
NUCLEAR FUEL ASSEMBLY WITH PLURAL INDEPENDENT CONTROL ELEMENTS AND SYSTEM THEREFOR
|
|
|
3481832 |
NUCLEAR REACTOR CORE AND CONTROL ELEMENT ARRANGEMENT
|
|
|
3356578 |
Nuclear reactor
|
|
|
3346459 |
Nuclear reactors
|
|
|
3324006 |
Control members for nuclear reactors
|
|
|
3297537 |
Crude petroleum transmission system
|
|
|
3267003 |
Nuclear reactor
|
|
|
3183164 |
Liquid moderated nuclear reactors
|
|
|
3178356 |
Nuclear reactor
|
|
|
3165448 |
Nuclear reactor core and fuel assembly
|
|
|
3151596 |
Nuclear powered water jet engine
|
|
|
3085957 |
Nuclear reactor for heating a subsurface stratum
|
|
|
2983659 |
Neutronic reactor burial assembly
|
|
|
3595748 |
Title is not available
|
|
|
3725199 |
Title is not available
|
|
|
3576717 |
Title is not available
|