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US 2013/0170974 A1Published application
Pumping element design
AssigneePratt & Whitney Rocketdyne, Inc.
InventorsKevin J. Lunde, Sen Y. Meng
Life of this patent
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Abstract
A pumping element includes a blade (20) having a first section proximate a hub and a second section proximate a tip, a cavity height distribution based on a selected incidence angle distribution and a selected blade thickness distribution based on a structural requirement. The resulting cavity height distribution matches the blade thickness at the first section and the second section and is greater than the blade thickness along the blade.
Claims1
A pumping element comprising:
- a blade having a first section proximate a hub, a second section proximate a tip;
- a selected incidence angle distribution;
- a selected blade thickness distribution based on a structural requirement;
- and
- a cavity height distribution based on the selected incidence angle distribution, wherein the resulting cavity height distribution matches the blade thickness at the first section and the second section and is greater than the blade thickness along the blade.
2 more elements
Dependencies are inferred from the claim text.