| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine bucket tip shroud edge profile. SOLUTION: A turbine bucket 24 includes a bucket airfoil 34 having a tip shroud 36. The tip shroud 36 includes a leading edge 48 comprising two scalloped faces 52, 54 and a trailing edge 50 comprising a third scalloped face 56 and end surfaces thereof 52, 54 and 56 define leading and trailing edge profiles substantially in accordance with Cartesian coordinate values of X and Y as points 1-41 set forth in Table I. The X and Y values are distances in inches which, when respective points are connected by smooth, continuing arcs, define the leading and trailing edge tip shroud scalloped profiles. The tip shroud further has first and second, i.e. upper and lower, Z form edge profiles 38, 40 substantially in accordance with Cartesian coordinate values of X and Y as points 42-59 and 60-77, respectively of table II. COPYRIGHT: (C)2009,JPO&INPIT
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