Parallel flow collar for reducing vibration of a rod within a di

Details Parallel flow collar for reducing vibration of a rod within a di Parallel flow collar for reducing vibration of a rod within a di

1978-12-18

1981-06-02

Walsh, Donald P.

Fluid sprinkling, spraying, and diffusing

Rigid fluid confining distributor

Fluidic oscillator

176 35, 176 81, 239552, G21C 330, G21C 708

Patent

active

042709792

ABSTRACT:
The oscillatory forces acting on an eccentric rod within a diffuser are reduced by an annular bypass collar around the rod immediately upstream of the diffuser region. The collar includes a sleeve portion that completely surrounds the rod and a bypass channel outside the sleeve which carries most of the fluid into the diffuser region on a path parallel to but spaced from the rod. The collar is most effective when a multiplicity of discrete bypass channels are provided.

REFERENCES:
patent: 3432390 (1969-03-01), Dean
patent: 3619367 (1971-11-01), Gumuchian
patent: 3770583 (1973-11-01), Klumb
patent: 3861999 (1975-01-01), Zmola
Fricke, Nuclear Science & Engineering: 48, 87-102, (1972).
Miller, et al., "Theoretical Analysis of Flow Induced Vibration of a Blade, etc.", ASME, 11/27/66.

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