CENTER-LOCATED CUTTER TEETH ON SHROUDED TURBINE BLADE

PROBLEM TO BE SOLVED: To provide a shroud for a 2nd-stage bucket having a cutter-tooth (54) centered substantially between the opposite ends. SOLUTION: A turbine bucket (24) includes a cutter-tooth (54) carried by the tip shroud seal (46) for enlarging a groove in a fixed shroud, the cutter tooth ha...

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Bibliographische Detailangaben
1. Verfasser:	TOMBERG STEVEN ERIC
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THANNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS,TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTIONPRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 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 shroud for a 2nd-stage bucket having a cutter-tooth (54) centered substantially between the opposite ends. SOLUTION: A turbine bucket (24) includes a cutter-tooth (54) carried by the tip shroud seal (46) for enlarging a groove in a fixed shroud, the cutter tooth has a center point located with reference to X, Y, and Z axes, where the X-axis extends axially in an exhaust flow direction, the Y-axis extends in a direction of rotation of the turbine bucket, and the Z-axis extends radially through the intersection of the X and Y axes, the center point is located about 1/2 inch along the Y-axis from the X=0 position, and the Z-axis is located 0.517 inches from the outside edge of a seal pin extending along the entry dovetail (40), as measured in a direction normal to the shank (38) of the bucket. COPYRIGHT: (C)2005,JPO&NCIPI