| 摘要 |
PCT No. PCT/EP96/03039 Sec. 371 Date Apr. 10, 1998 Sec. 102(e) Date Apr. 10, 1998 PCT Filed Jul. 11, 1996 PCT Pub. No. WO97/04217 PCT Pub. Date Feb. 6, 1997A tandem turbine-blade cascade for a turbine, turbo-engine or power engine includes at least two rows of blades disposed substantially directly in line with one another in the rotor or stator. The second row of blades has a larger number of blades than the first row of blades and the second row of blades are distributed nonuniformly. The spacing (s1) between two blades of the first row of blades is substantially equal to the sum (s2) of two successive blade spacings (s12, s22) in the second row of blades and the distribution quotient (s12/s22) of the blade spacings in the second row is in the range between 0.4 and 1.0.
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