Ihi Corporation

Tomotake Ogawa

Tsuyoshi Takemoto

Hiroyuki Yagi

Fumiaki Watanabe

Yoshinori Soda

Jun Tateishi

Akane Ohbo

Misato Mori

A seal structure for a gas turbine blade including a shank including a first side surface, a second side surface, and a bottom surface located radially inward from a fin. The first side surface has a recess movably housing a wedge seal, and a slot on the bottom surface as an insertion opening for a spline seal. The second side surface has a slot on the bottom surface as the insertion opening. The recess has an inclined surface extending straight radially inward and away from the first side surface. The wedge seal includes a wedge portion including a first wedge surface to be opposed to the inclined surface and a second wedge surface to be opposed to the second side surface of the adjacent rotor blade to form a wedge together with the wedge surface, and a weight portion positioned radially inward in the recess from the wedge portion.

Seal structure for gas turbine rotor blade

A shield member is disposed over a gap between platform portions of adjacent turbine rotor blades, made from a ceramic matrix composite, and configured to shield the gap between the platform portions.

Shield member and jet engine using the same

Growing community of inventors

Tokyo, Japan

Tomotake Ogawa