Title:
分割環及びガスタービン
Document Type and Number:
Japanese Patent JP6746486
Kind Code:
B2
Abstract:
This split ring and this gas turbine are provided with: a main cooling space (37) that receives cooling air (CA) from the outside and that is provided to the outside of a split ring (27) in a split body (31); a plurality of first cooling flow passages (44) that are arranged in parallel to each other in a peripheral direction (Dc) so as to be aligned with the axial direction of a rotor (14) in the split body (31), that are each communicated at one end to the upstream side of the main cooling space (37), and that are each open at the other end to the downstream side of the split body (31); a second cooling flow passage (45) that is arranged adjacently to the first cooling flow passages (44) on the upstream side in the rotational direction (R) of the rotor (14) in the split body (31), and that is connected at one end to the upstream side of the main cooling space (37) so as to be aligned with the axial direction of the rotor (14); and a plurality of third cooling flow passages (46) that are provided in the circumferential direction (Dc) of the split ring (27) in a prescribed region (X1) starting from the downstream end toward the upstream side in a flowing direction of a combustion gas (FG), at a part of the lateral end of the upstream side of the rotor (14) in the rotational direction, that are connected at one end to the second cooling flow passage (45), and that are each open at the other end to the upstream side of the rotor (14) in the rotational direction.
Inventors:
High Mura Keita
Masamitsu Kuwahara
Yusuke Izumi
Masamitsu Kuwahara
Yusuke Izumi
Application Number:
JP2016242660A
Publication Date:
August 26, 2020
Filing Date:
December 14, 2016
Export Citation:
Assignee:
Mitsubishi Hitachi Power Systems Co., Ltd.
International Classes:
F01D9/00; F02C7/18; F01D25/12
Domestic Patent References:
| JP2000297604A | ||||
| JP2011153540A | ||||
| JP11022411A | ||||
| JP2016011616A | ||||
| JP11166401A |
Foreign References:
| WO2011132217A1 | ||||
| WO2011024242A1 | ||||
| WO2016152573A1 | ||||
| WO2015146854A1 | ||||
| US7284954 |
Attorney, Agent or Firm:
Sakai International Patent Office