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    • 10. 发明授权
    • Turbine blade
    • 涡轮叶片
    • US07500823B2
    • 2009-03-10
    • US11174275
    • 2005-07-01
    • Hans-Thomas BolmsRalf Müsgen
    • Hans-Thomas BolmsRalf Müsgen
    • F01D25/12
    • F01D5/186F05D2250/314F05D2250/34F05D2260/202
    • A turbine blade (2), with a root section (4), with a tip section (6) and with a blade leaf (12) which is provided with a number of coolant ducts (22) through which a coolant (K) is capable of flowing, outlet ducts (34) which issue in outlet ports (24) branching off, in the leading edge region (28) of the blade leaf (12), from a coolant duct (22) running essentially in the longitudinal direction (L) of the turbine blade (2) and spaced apart from the leading edge (14), the outlet ports (24) being arranged along at least two rows oriented essentially parallel to the leading edge (14), and the outlet ducts (34) being oriented, in the region of their respective outlet port (24), obliquely with respect to the longitudinal direction (L) of the turbine blade (2), in such a way that the coolant (K) flowing out in a root-side subsection (38) of each row possesses, in the region of the outlet ports (24), a velocity component pointing toward the tip section (6) of the turbine blade (2), and the coolant (K) flowing out in a tip-side subsection (42), continguous thereto, of each row has a velocity component pointing toward the root section (4), is designed for a particularly reliable and uniform cooling of the leading edge region (28), at the same time with the requirement for coolant (K) being kept particularly low. For this purpose, according to the invention, the transitional points (40) at which the orientation of the outlet ducts (34) changes are arranged so as to be offset relative to one another in the longitudinal direction (L) in each case for two adjacent rows.
    • 一种具有根部(4)的涡轮叶片(2),具有尖端部分(6)和叶片叶片(12),叶片叶片(12)设置有多个冷却剂管道(22),冷却剂(K) 能够流动的出口管道(34)从在叶片叶片(12)的前缘区域(28)中分支出来的出口端口(24)从基本上在纵向方向上运行的冷却剂管道(22) 涡轮叶片(2)的间隔开并与前缘(14)间隔开,出口端口(24)沿至少两排排列成基本上平行于前缘(14)排列,出口管道(34) )在其各自的出口(24)的区域中相对于涡轮机叶片(2)的纵向方向(L)倾斜,使得冷却剂(K)以根部的方式流出, 每排的侧部分(38)在出口端口(24)的区域中具有指向涡轮叶片(2)的尖端部分(6)的速度分量, 每排排出的尖端侧部分(42)中流出的olant(K)具有指向根部(4)的速度分量,被设计成用于特别可靠和均匀地冷却前缘区域( 28),同时对冷却剂(K)的要求保持特别低。 为此,根据本发明,出口管道34的取向发生变化的过渡点40被布置成在纵向方向(L)上相对于彼此在每种情况下彼此偏移两个 相邻行。