STEAM TURBINE ROTOR BLADE FOR LOW PRESSURE SECTION OF STEAM TURBINE ENGINE

STEAM TURBINE ROTOR BLADE FOR LOW PRESSURE SECTION OF STEAM TURBINE ENGINE

PROBLEM TO BE SOLVED: To provide a steam turbine rotor blade (20) for a low pressure section of a steam turbine engine (10). SOLUTION: This steam turbine rotor blade (20) includes an airfoil portion (42). A root section (44) is attached to one end of the airfoil portion (42). A dovetail section (40)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RIAZ MUHAMMAD SAQIB, STATHOPOULOS DIMITRIOS
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a steam turbine rotor blade (20) for a low pressure section of a steam turbine engine (10). SOLUTION: This steam turbine rotor blade (20) includes an airfoil portion (42). A root section (44) is attached to one end of the airfoil portion (42). A dovetail section (40) projects from the root section (44), wherein the dovetail section (40) includes a skewed axial entry dovetail. A tip section (46) is attached to the airfoil portion (42) at an end opposite from the root section (44). A cover (48) is integrally formed as part of the tip section (46). A part span shroud (50) is attached at an intermediate section of the airfoil portion (42) between the ends thereof (42). The rotor blade (20) includes an exit annulus area of about 47.7 ft2(4.43 m2) or greater. COPYRIGHT: (C)2010,JPO&INPIT