초록 ▼

A premixer for an industrial type gas turbine engine wherein the premixer includes a diffuser ring assembly made up of annular concentric rings and upstream of the diffuser ring assembly in the airflow path is a corresponding fuel manifold ring assembly, each ring in the manifold ring assembly corre

A premixer for an industrial type gas turbine engine wherein the premixer includes a diffuser ring assembly made up of annular concentric rings and upstream of the diffuser ring assembly in the airflow path is a corresponding fuel manifold ring assembly, each ring in the manifold ring assembly corresponding to a passageway formed between the diffuser rings, and each manifold ring includes a downstream channel for feeding the fuel to the air as the air passes by the ring.

대표청구항 ▼

1. A fuel/air premixer for a gas turbine combustor wherein the premixer comprises an annular diffuser assembly placed in the airflow upstream of an inlet to the combustor, the diffuser assembly including a plurality of concentric rings wherein a diffuser passageway is formed between each adjacent ri

1. A fuel/air premixer for a gas turbine combustor wherein the premixer comprises an annular diffuser assembly placed in the airflow upstream of an inlet to the combustor, the diffuser assembly including a plurality of concentric rings wherein a diffuser passageway is formed between each adjacent ring in a pair of rings; the diffuser assembly has an upstream section and a downstream section relative to the airflow; the passageway formed by a pair of adjacent rings includes a converging cross-sectional area at the upstream section of the diffuser assembly and a diverging area at the downstream section of the diffuser assembly and a gap defined at the narrowest part of the passageway between the upstream and downstream sections; an assembly of concentric fuel manifold rings is located upstream of the diffuser assembly whereby each manifold ring is located in axial alignment with a corresponding diffuser passageway whereby the air flows around the manifold rings and through the corresponding diffuser passageways, and fuel is delivered into the airflow from the manifold rings.