Combustion chamber for a gas turbine engine

US10788211B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Jan Pettersson · Kristinehamn, SE
• Ulf Raadeklint · Norrköping, SE

Key dates

• Filing date: Oct 14, 2015
• Grant date: Sep 29, 2020
• Expiry date: May 19, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23R2900/00014
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A combustion chamber for a gas turbine engine includes: an inner wall delimiting an inner volume of the combustion chamber, through which combustion gas flow from a burner to a gas turbine of the gas turbine engine, a plurality of dampening cavities for the dampening of thermo-acoustic vibrations in the combustion gas, each dampening cavity communicating with the inner volume through at least a dampening hole on the inner wall, at least a cooling passage for a cooling medium flowing outside the inner volume in thermal contact with the inner wall, each dampening cavity having at least a purging hole communicating with the cooling passage for purging a portion of the cooling medium through the dampening cavities to the inner volume.