Patent ID: 11891920
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 1:
2. The turbine stator vane according to claim 1,
wherein the airfoil portion includes a pressure-side vane surface recessed to have a concave shape in a circumferential direction, and a suction-side vane surface protruding to have a convex shape in the circumferential direction and connecting to the pressure-side vane surface via a leading edge and a trailing edge, and
a vane-surface protruding portion formed on the gas path surface, extending from a leading edge portion of the pressure-side vane surface toward the suction-side vane surface of the airfoil portion of the turbine stator vane which is positioned adjacent in the circumferential direction, to an intermediate position of a flow passage width of the combustion gas flow passage between the airfoil portion and the adjacent airfoil portion, the vane-surface protruding portion being surrounded by an outer edge portion formed at a position connecting to the gas path surface and protruding from the gas path surface toward the side of the combustion gas flow passage in the vane height direction.