초록 ▼

A method for improving effectiveness of a labyrinth seal 40 between coannular components 22, 30 in a turbine 10 includes reconfiguring one of e components to provide means for receiving and retaining a replaceable brush seal 60 installing the brush seal so that the seal bristles impede the leakage o

A method for improving effectiveness of a labyrinth seal 40 between coannular components 22, 30 in a turbine 10 includes reconfiguring one of e components to provide means for receiving and retaining a replaceable brush seal 60 installing the brush seal so that the seal bristles impede the leakage of air through an intercomponent gap 41. In the preferred embodiment the reconfiguring step is applied to a hollow, cylindrical barrel 30 and includes machining the barrel to reduce its axial length and its wall thickness and also includes attaching a retainer 52. The retainer cooperates with the barrel to define a groove 56 within which the brush seal is trapped radially and axially. The brush seal slides circumferentially within the groove to facilitate seal installation and removal. The invention despenses with the need to carry out an expensive and time consuming replacement or renovation of the worn labyrinth seal.

대표청구항 ▼

A refurbished gas turbine engine component having at least one knife edge seal for inhibiting air leakage through an intercomponent gap between the component and a second component, the refurbished component characterized by: a brush seal mounted on the refurbished component in tandem with the knife

A refurbished gas turbine engine component having at least one knife edge seal for inhibiting air leakage through an intercomponent gap between the component and a second component, the refurbished component characterized by: a brush seal mounted on the refurbished component in tandem with the knife edge seal, the bristles of the brush seal extending toward the second component for impeding the leakage of air through the intercomponent gap.