Title:
ロータディスク、ロータ軸、タービンロータ、及びガスタービン
Document Type and Number:
Japanese Patent JP7328794
Kind Code:
B2
Abstract:
A rotor disc has diametrically outer surfaces, a diametrically inner surface, a plurality of blade root grooves recessed diametrically inward from the diametrically outer surfaces and aligned in a circumferential direction, and a plurality of hole groups formed in each of the plurality of blade root grooves and aligned in the circumferential direction. Each of the plurality of hole groups has a hole including a cooling orifice penetrating from the diametrically inner surface through to the diametrically outer surface. The width of each of the plurality of hole groups in the circumferential direction is greater than the width of each of the plurality of hole groups in an axial direction and smaller than a minimum gap among gaps between the plurality of hole groups in the circumferential direction.
More Like This:
Inventors:
Kazuki Kitagawa
Shinya Hashimoto
Shinya Hashimoto
Application Number:
JP2019097549A
Publication Date:
August 17, 2023
Filing Date:
May 24, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F01D5/02
Domestic Patent References:
| JP2009203926A | ||||
| JP2015206462A | ||||
| JP2031355U | ||||
| JP48025686B1 | ||||
| JP2000186502A |
Foreign References:
| WO2017129455A1 | ||||
| US6022190 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada