To provide a turbine which can effectively perform pressure recovery of fluid, while inhibiting occurrence of pressure loss due to peeling to exhaust the fluid, with minimum configuration.
A gas turbine 1 includes: a rotor 2; a casing 11 forming a working fluid channel 14 through which the fluid is circulated: a turbine body 10 having a plurality of stationary blades radially provided on the inner circumferential surface of the casing 11 and a plurality of moving blades 13 radially provided on the other side of the central axis S direction of the stationary blades; and a diffuser 20 connected with the casing 11, which is formed radially expanding, gradually from one side of the central axis S direction toward the other side, with a substantially tubular shape, and forms an exhaust fluid channel 21 inside thereof, which exhausts the fluid. An open angle θ is set to 15° or above and 30° or below, and tip clearance C formed between the inner circumferential surface of the casing 11 and one of the moving blades 13, which is most adjacent to the diffuser 20, is set to 0.1% or above and 1.0% or below for the channel height H of the working fluid channel at the position of the moving blade 13.
ITO EISAKU
WAKAZONO SUSUMU
| JPH06173707A | 1994-06-21 | |||
| JP2002502477A | 2002-01-22 | |||
| JP2002180903A | 2002-06-26 | |||
| JPS4623004Y1 | ||||
| JPH04330302A | 1992-11-18 |
| US4175640A | 1979-11-27 |
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki