| 发明名称 | Turbine blade and gas turbine having the same | ||
| 摘要 | A turbine blade of the present invention includes a blade body mounted on a rotor body so as to extend outward from the rotor body in a radial direction of the rotor body and a chip shroud fixed to the outside of the blade body in the radial direction. A cooling passage which extends in the radial direction of the rotor body and in which a cooling medium circulates is formed in the blade body. The chip shroud includes a shroud body where a recess opened to the outside in the radial direction and communicating with the cooling passage is formed on an outer peripheral end face, and a plug that includes a plurality of plug pieces closing an opening of the recess in cooperation with each other by being inserted into mounting grooves formed on side surfaces of the recess. | ||
| 申请公布号 | US9371741(B2) | 申请公布日期 | 2016.06.21 |
| 申请号 | US201213660431 | 申请日期 | 2012.10.25 |
| 申请人 | MITSUBISHI HEAVY INDUSTRIES, LTD. | 发明人 | Ito Ryuta |
| 分类号 | F01D5/22;F01D25/12;F01D5/18 | 主分类号 | F01D5/22 |
| 代理机构 | Westerman, Hattori, Daniels & Adrian, LLP | 代理人 | Westerman, Hattori, Daniels & Adrian, LLP |
| 主权项 | 1. A turbine blade comprising: a blade body that is mounted on a rotor body so as to extend outwards from the rotor body in a radial direction of the rotor body; and a tip shroud that is fixed to an outside of the blade body in the radial direction, wherein a cooling passage which extends in the radial direction of the rotor body and in which a cooling medium circulates is formed in the blade body, and the tip shroud includes a shroud body wherein a recess opened to the outside in the radial direction and communicating with the cooling passage is formed on an outer peripheral end face; a plug that includes a plurality of plug pieces closing an opening of the recess in cooperation with each other by being inserted into mounting grooves formed on side surfaces of the recess; an insertion surface formed at a plug insertion port for inserting the plug pieces into the mounting grooves and of which the position is substantially the same as that of the mounting grooves in the radial direction; and a first main surface formed on the outer peripheral end face so as to be recessed inwards in the radial direction with respect to the insertion surface, wherein at least one portion of the mounting grooves is positioned so as to separate outwards from the first main surface in the radial direction. | ||
| 地址 | Tokyo JP | ||