公开(公告)号：EP1104872B1

公开(公告)日：2007-04-25

申请号：EP00310678.8

申请日：2000-12-01

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Hagle, Michael P. ,  Cooper, James Neil ,  Jih, Junhaur

IPC: F23R3/08

CPC classification number: F23R3/08 ,  Y02T50/675

公开(公告)号：EP1104872A1

公开(公告)日：2001-06-06

申请号：EP00310678.8

申请日：2000-12-01

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Hagle, Michael P. ,  Cooper, James Neil ,  Jih, Junhaur

IPC: F23R3/08

CPC classification number: F23R3/08 ,  Y02T50/675

Abstract: A combustor liner (60) has a stepped combustor liner surface (62) and an overhang portion (66) forming an air cooling slot (64). A contoured rear facing edge (70) of the overhang portion reduces turbulence of combustion gas flow and reduces a combustor liner surface area exposed to combustion gases. A thermal barrier coating (78) is also applied to the contoured rear facing edge, reducing heat flow into the overhang portion and hence reducing the operating temperature of the combustor liner. Thus, the amount of cooling air is reduced, which can reduce exhaust emissions, increase engine performance and extend a working life of the combustor assembly.

Abstract translation: 燃烧器衬套（60）具有阶梯式燃烧器衬套表面（62）和形成空气冷却槽（64）的伸出部分（66）。 突出部分的轮廓形的后向边缘（70）减少燃烧气体流动的湍流并减少暴露于燃烧气体的燃烧室衬套表面积。 隔热涂层（78）也被施加到轮廓的后向边缘，减少进入悬垂部分的热量，从而降低燃烧器衬套的操作温度。 因此，冷却空气的量减少，这可以减少废气排放，增加发动机性能并延长燃烧器组件的使用寿命。