Leakage Characteristic of Helical Groove Seal Designed in Reactor Coolant Pump

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="619459.fig.002a" src="https://static.hindawi.com/articles/ijrm/volume-2012/619459/figures/619459.fig.002a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>  Groove cross section (not scaled)</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="619459.fig.002b" src="https://static.hindawi.com/articles/ijrm/volume-2012/619459/figures/619459.fig.002b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Helix angle <svg height="7.9499998" id="M22" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 9.7749996 7.9499998" width="9.7749996" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,7.675)"><path d="M545 106q-67 -118 -134 -118q-24 0 -40 37.5t-30 129.5h-2q-47 -72 -103 -119.5t-108 -47.5q-47 0 -76 45.5t-29 119.5q0 113 85 204t174 91q47 0 70 -33.5t43 -119.5h3q32 47 80 140l55 13l10 -9q-47 -80 -138 -201q17 -99 27.5 -136t22.5 -37q23 0 69 61zM333 204
q-14 98 -31 149.5t-50 51.5q-49 0 -94 -70t-45 -164q0 -55 15.5 -86t40.5 -31q70 0 164 150z" id="x1D6FC"></path></g>
</svg></td></tr></table></td></tr></table>

International Journal of Rotating Machinery

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Figure 2

Figure 2: Leakage Characteristic of Helical Groove Seal Designed in Reactor Coolant Pump 