Rod cluster having improved vane configuration

Induced nuclear reactions: processes – systems – and elements – Control component for a fission reactor

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

376353, 376463, G21C 700

Patent

active

048636789

ABSTRACT:
A spider assembly for supporting a corresponding rod cluster in a pressurized water reactor vessel, through which the core outlet flow passes in a predetermined direction. Each spider assembly comprises a generally cylindrical, central hub disposed in parallel axial relationship to the predetermined direction of the core outlet flow and a plurality of vane assemblies. Each vane assembly comprises means for mounting at least one rod to the assembly and at least one vane element connecting the rod mounting means to the hub. Each vane element has generally parallel, major planar surfaces disposed parallel to the predetermined direction of flow and a square trailing edge configuration which mitigates the shedding forcing function on the spider resulting from the core outlet flow thereover, while maximizing material content and thereby the strength thereof. Further, each vane element defines a plane of symmetry intermediate the major planar surfaces thereof and a leading edge cross-sectional configuration which is non-symmetrical relative to the associated plane of symmetry and preferably which is substantially uniform and defines a flow stagnation line which is off-set from the plane of symmetry. Corresponding vane elements, extending in generally diametrically opposite directions from the hub and having aligned planes of symmetry, have flow stagnation lines which are offset in a common direction from the aligned, respective planes of symmetry; alternatively, adjacent pairs of equiangularly displaced vane elements may have oppositely directed such offsets, commonly for all such pairs.

REFERENCES:
patent: 3314859 (1967-04-01), Anthony
patent: 3481832 (1969-12-01), Rickert
patent: 4035230 (1977-07-01), Bevilacqua
patent: 4432934 (1984-02-01), Gjertsen et al.
patent: 4481164 (1984-11-01), Bollinger
European Search Report (EP 86 30 9594), The Hague, 03-03-1987, Examiner Kavcic.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Rod cluster having improved vane configuration does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rod cluster having improved vane configuration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rod cluster having improved vane configuration will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-242093

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.