Blade shroud for fluid element
AssigneeAerojet Rocketdyne of DE, Inc.
InventorsJeff H. Miller, Kelvin Sorensen, John Fung, Thaddeus Pearce Chilcoat, Fabian Bitar
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Abstract
The disclosed fluid elements include radial blades extending to trailing edges and that are integral with front and rear shrouds to provide a fluid exit. Fillets adjoin the trailing edge and the front and rear shrouds at the exit. The front and rear shrouds respectively have first and second perimeter thicknesses at the impeller outer perimeter. The first perimeter thickness is greater than the second perimeter thickness at the trailing edge and adjacent to the exit, which provides greater high cycle fatigue in the area of the fillets.
Claims11
A fluid element for a fluid machine comprising:
- circumferentially arranged blades extending radially from a leading edge to a trailing edge;
- and
- front and rear shrouds spaced apart from one another and integral with the blades to provide an interior pumping surface, the front and rear shrouds respectively including first and second perimeter surfaces respectively having first and second thicknesses, the first thickness greater than the second thickness at the trailing edge and adjacent to the exit.
Dependencies are inferred from the claim text.