Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AXIAL FLOW ROTATING MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/230411
Kind Code:
A1
Abstract:
An axial flow rotating machine is provided with: a rotor (20); a plurality of stator vanes (42); and a medium flow modification member (60). The stator vanes (42) include an inner shroud (44) and one or more seal fins (49). A rotor shaft (21) is formed with an annular groove (22) recessed radially inward (Dri) so as to allow a contactless entry of the inner shroud (44) and the seal fins (49). The distance between an end (58) on the most axially downstream side Dad of the inner shroud (44) and a downstream-side groove side surface (25) is (L). The distance (Lf) between a most-downstream seal fin (49d) and a medium flow modification surface (61) is not more than the distance (L) on the axial downstream side (Dad).

Inventors:
MOMMA KAZUHIRO (JP)
SENOO SHIGEKI (JP)
Application Number:
PCT/JP2018/021706
Publication Date:
December 20, 2018
Filing Date:
June 06, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D11/02; F01D5/02; F01D9/04; F01D25/00; F16J15/3292; F16J15/447
Foreign References:
EP2292897A12011-03-09
US3529904A1970-09-22
JP2011174451A2011-09-08
JP2011080452A2011-04-21
JP2012137006A2012-07-19
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
Download PDF: