Mitsubishi Power, Ltd.

Tomohiro Horai

Hideaki Sato

Shouhei Danno

Kimihiro Todo

Tatsuo Nakamoto

A set screw () is provided, which has a screw main body (), a male thread portion () which is formed on an outer periphery of the screw main body (), and a drain hole () which penetrates a central portion of the screw main body () in an extension direction of the screw main body (). The blade root ring () has a hole () which extends radially outward from an inner peripheral surface () of the blade root ring (), and a female thread portion () which is formed on an inner peripheral surface () of the hole (), and the set screw () is screwed into the female thread portion ().

Growing community of inventors

Yokohama, Japan

Tomohiro Horai