DIFF Subgroup
G21C 3/32 Bundles of parallel pin-, rod-, or tube-shaped fuel elements
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Reactor fuel elements or their assemblies; Selection of substances for use as reactor fuel elements > Assemblies of a number of fuel elements in the form of a rigid unit > Bundles of parallel pin-, rod-, or tube-shaped fuel elements
CPC:
Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements > Assemblies of a number of fuel elements in the form of a rigid unit > Bundles of parallel pin-, rod-, or tube-shaped fuel elements
Of 10 combined children, 8 exist in both systems.
2 codes are CPC-only extensions.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G21C 3/322 Means to influence the coolant flow through or around the bundles since 1990 +1 CPC IPC+CPC Available in IPC and CPC
- G21C 3/326 comprising fuel elements of different composition; comprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods since 1990 +1 CPC IPC+CPC Available in IPC and CPC
- G21C 3/33 Supporting or hanging of elements in the bundle (spacer grids G21C3/34); Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles since 1990 +3 CPC IPC+CPC Available in IPC and CPC
- G21C 3/336 Spacer elements for fuel rods in the bundle (spacer grids G21C3/34) since 1990 IPC+CPC Available in IPC and CPC