公开(公告)号：US10018053B2

公开(公告)日：2018-07-10

申请号：US14944441

申请日：2015-11-18

Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  B&B AGEMA GmbH

Inventor： Tomoki Taniguchi ,  Ryozo Tanaka ,  Takeshi Horiuchi ,  Takao Sugimoto ,  Masahide Kazari ,  Karsten Kusterer ,  Dieter Bohn ,  Gang Lin

IPC: F01D5/18

CPC classification number: F01D5/187 ,  F05D2240/303 ,  F05D2250/141 ,  F05D2250/15 ,  F05D2250/231 ,  F05D2250/25 ,  F05D2250/312 ,  F05D2250/314 ,  F05D2250/72 ,  F05D2260/201 ,  F05D2260/2212 ,  F05D2260/2214

Abstract: In a structure for internally cooling a turbine blade, a cooling medium passage is provided in the turbine blade. The cooling medium passage has a shape in which a plurality of cylindrical spaces, each having substantially cylindrical shape, extending in parallel with each other partially overlap each other. A cooling medium supply passage that supplies a cooling medium to the cooling medium passage is connected to a portion of the cooling medium passage that includes a peripheral wall, in a direction that forms an acute angle with respect to a longitudinal direction of the cooling medium passage.

公开(公告)号：US09945233B2

公开(公告)日：2018-04-17

申请号：US14944503

申请日：2015-11-18

Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  B&B AGEMA GmbH

Inventor： Ryozo Tanaka ,  Takao Sugimoto ,  Masahide Kazari ,  Tomoki Taniguchi ,  Karsten Kusterer ,  Dieter Bohn ,  Nurettin Tekin

IPC: F01D5/18 ,  B23H9/10 ,  B23H1/04 ,  B23H9/14 ,  F23R3/06 ,  F01D9/06

CPC classification number: F01D5/186 ,  B23H1/04 ,  B23H9/10 ,  B23H9/14 ,  F01D9/065 ,  F05D2230/12 ,  F05D2240/11 ,  F05D2240/81 ,  F05D2250/14 ,  F05D2250/231 ,  F05D2250/75 ,  F05D2260/202 ,  F23R3/06 ,  F23R2900/03042

Abstract: A double-jet film cooling structure includes: an injection port, formed on a wall surface facing a high-temperature gas passage; a main passage as a straight round hole to supply cooling medium to the injection port; a pair of branch passages as straight round holes; and communication passages connecting the main passage to the branch passages. The main passage and the branch passages have same constant inner diameters. Each communication passages has an envelope surface obtained by continuously arranging straight round holes each passing a branch point and having the constant inner diameter. Transverse injection angles of the branch passages relative to gas flow along the wall surface are oriented in opposite directions. An angle between axial direction of the main passage and the wall surface is greater than an angle formed between axial direction of branch passage and the wall surface.