| 摘要 |
PROBLEM TO BE SOLVED: To provide a relatively highly efficient compressor having a pressure ratio equal to that of a centrifugal compressor and reduced in the weight and dimension thereof. SOLUTION: A rotor 2 is structured of a first rotor 21 and a second rotor 22, first recessed parts 7 are symmetrically formed in relation to a rotary shaft 6 in a rear end of the first rotor 21 crossing the rotary shaft 6, second recessed parts 8 are symmetrically formed in relation to the rotary shaft 6 in a front part of the second rotor 22 crossing the rotary shaft 6, and the first rotor 21 and the second rotor 22 are connected to each other to form the rotor 2 of hollow structure. A rotor blade cascade 1 is structured of a first rotor blade cascade 11 corresponding to the first rotor 21 and a second rotor blade cascade 12 corresponding to the second rotor 22, and shape and position of blade are selected in response to each of the rotor blade cascades 11 and 12 to efficiently give rotation energy to a fluid. COPYRIGHT: (C)2006,JPO&NCIPI
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