Steam turbine rotating blade for a low pressure section of a steam turbine engine
US8052393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2008 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Aug 23, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/225
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A steam turbine rotating blade for a low pressure section of a steam turbine engine is disclosed. The steam turbine rotating blade includes an airfoil portion. A root section is attached to one end of the airfoil portion. A dovetail section projects from the root section, wherein the dovetail section includes a straight axial entry dovetail. A tip section is attached to the airfoil portion at an end opposite from the root section. A cover is integrally formed as part of the tip section. The cover has a first portion that overhangs a pressure side of the airfoil portion and a second portion that overhangs a suction side of the airfoil portion. The cover is positioned at an angle relative to the tip section, wherein the angle ranges from about 15 degrees to about 35 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.