公开(公告)号：EP2151545A3

公开(公告)日：2012-12-19

申请号：EP09167300.4

申请日：2009-08-05

申请人： Hitachi Ltd.

发明人： Hayasaka, Yasushi ,  Toriya, Hajime ,  Murakami, Katsuhiro

IPC分类号： F01D5/30

CPC分类号： F01D5/3053 ,  F01D5/3007 ,  F05D2250/312 ,  F05D2260/941

摘要： Disclosed is a turbine rotor blade 40a, 40b that is highly manufacturable and capable of reducing the stress caused by centrifugal force. The turbine rotor blade 40a includes: a vane portion 3 having a blade leading edge 21 which is positioned upstream in the distribution direction of working fluid, and a blade trailing edge 22 which is positioned downstream of the blade leading edge 21; and a blade base 5 portion which is extended unidirectionally on a base side of the vane portion 3 and engaged with a blade groove 6 formed in the outer circumference of a turbine rotor 8. The turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade leading edge 21 is different from the turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade trailing edge 22.

公开(公告)号：EP2151545A2

公开(公告)日：2010-02-10

申请号：EP09167300.4

申请日：2009-08-05

申请人： Hitachi Ltd.

发明人： Hayasaka, Yasushi ,  Toriya, Hajime ,  Murakami, Katsuhiro

IPC分类号： F01D5/30

CPC分类号： F01D5/3053 ,  F01D5/3007 ,  F05D2250/312 ,  F05D2260/941

摘要： Disclosed is a turbine rotor blade 40a, 40b that is highly manufacturable and capable of reducing the stress caused by centrifugal force. The turbine rotor blade 40a includes: a vane portion 3 having a blade leading edge 21 which is positioned upstream in the distribution direction of working fluid, and a blade trailing edge 22 which is positioned downstream of the blade leading edge 21; and a blade base 5 portion which is extended unidirectionally on a base side of the vane portion 3 and engaged with a blade groove 6 formed in the outer circumference of a turbine rotor 8. The turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade leading edge 21 is different from the turbine rotor 8 circumferential position of the end of the blade base portion 5 on the side toward the blade trailing edge 22.