Published November 20, 1980 | Version v1
Patent Open

Spacer grid for fuel elements

Creators

Description

The spacer grid for fuel elements of a gas-cooled fast breeder reactor (but also for PWRs and BWRs) consists of a lattice field with dodecagonal meshes. These meshes are formed by three each adjacent hexagons grouped arround a central axis. The pairs of legs extending into the dodecagon and being staggered by 120 are designed as knubs with inclined abutting surfaces for the fuel rods. By this means there is formed a three-point bearing for centering the fuel rods. The spacer grid mentioned above is rough-worked from a single disc- resp. plate-shaped body (unfinished piece). (orig.)

Availability note (English)

MF available from INIS under the Report Number; Available from Deutsches Patentamt, Muenchen, Germany, F.R.

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Additional details

Additional titles

Original title (German)
Abstandshaltegitter fuer Brennelemente

Publishing Information

Imprint Pagination
6 p.
IPC:
Int. Cl. G21C 3/34.
IPC
Int. Cl. G21C 3/34.
Patent number
DE patent document 2647000/C/

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
13715037
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
FINS; FUEL PINS; FUEL RODS; GCFR TYPE REACTORS; GRIDS; SPACERS; SUPPORTS
Descriptors DEC
BREEDER REACTORS; ELECTRODES; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; FUEL ELEMENTS; GAS COOLED REACTORS; MECHANICAL STRUCTURES; REACTOR COMPONENTS; REACTORS