Schaufel für eine Turbomaschine, Schaufelanordnung und Turbine

Details

Veröffentlichungs-Nr.

EP4112884

Aktenzeichen

EP21183176

Anmeldetag

1. Juli 2021

Veröffentlichung

3. September 2025

Erteilung

3. September 2025

Rechtsraum

EP

IPC

F01D5/22F01D5/26

Abstract

A blade for turbo machine, in particular for a turbine, includes an airfoil body extending in a radial direction and comprising a suction side surface and a pressure side surface opposite to the suction side surface with regard to a circumferential direction that extends transverse to the radial direction, and a snubber structure. The snubber structure includes a first snubber element protruding, along the circumferential direction, from the suction side surface of the airfoil body, and a second snubber element protruding, along the circumferential direction, from the pressure side surface of the airfoil body wherein the first snubber element is connected to the suction side surface of the airfoil body by a concave curved first transition portion having a first radius, and wherein the second snubber element is connected to the pressure side surface of the airfoil body by a concave curved second transition portion having a second radius. The first radius is smaller than the second radius to reduce aerodynamic losses.

Anmelder

Firma

Doosan Enerbility Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete