Gasturbine

Details

Veröffentlichungs-Nr.

EP3460194

Aktenzeichen

EP18181307

Anmeldetag

3. Juli 2018

Veröffentlichung

16. Dezember 2020

Erteilung

16. Dezember 2020

Rechtsraum

EP

IPC

F01D9/06// F01D5/18

Abstract

The present invention relates to a turbine vane (520) to guide a flow of the combustion gas toward a turbine blade, the turbine vane having a turbine vane cooling passage (527) for delivering cooling fluid to an inner wall of the turbine vane (520) and an impingement plate (700) installed in the turbine vane cooling passage (527), the impingement plate (700) having a plurality of injection holes (712, 714) through which the cooling fluid is injected onto the inner wall of the turbine vane (520), the injection holes (712, 714) formed at predetermined locations of the impingement plate (700). The injection holes (712, 714) are formed differently depending on locations, namely the distribution of injection holes is increased towards a downstream side of the cooling flow, such that a temperature gradient or thermal stress may be prevented from occurring in the turbine vane.

Anmelder

Firma

Doosan Heavy Industries & Construction Co., Ltd

Land

🇰🇷 Südkorea

Fachgebiete