Combustion chamber assembly with collar section at a mixing air hole of a combustion chamber shingle

US11940150B2 · kind B2 · utility

Assignees

• ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE
• ROLLS-ROYCE plc

Inventors

• Matthew Thomson · Fawn Drive, AU
• Romek Ott · Berlin, DE
• Igor SIKORSKI · Berlin, DE
• Sabina Heyen · Berlin, DE

Key dates

• Filing date: Oct 26, 2022
• Grant date: Mar 26, 2024
• Expiry date: Oct 26, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23R2900/03041
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A combustion chamber assembly includes a through hole on the combustion chamber wall bounded on an outer side of the wall by a hole edge and a combustion chamber shingle having a collar bounding a mixing air hole on the outer side of the wall and protruding with a first collar portion beyond the hole edge on the outer side of the wall. A cooling air opening is formed on an inner circumferential surface of a duct portion of the mixing air hole adjoining the first collar portion and extending in the direction of a combustion space, the cooling air opening leading into a cooling air duct which extends through the duct portion and via which cooling air is guided out of the mixing air hole in a direction of a hot side of the shingle facing the combustion space.