Patent ID: 6471478
Filing Date: 2002-10-29
Classification: F01D,Y02T,Y10S

Abstract:
In a gas turbine having a rotor comprised of axially stacked rotor wheels and spacers and aligned openings spaced from an axis of rotation of the rotor, the aligned wheels and spacers receiving a tube extending in an axial direction, a seal assembly about said tube at an interface of one of said wheels and one of said spacers, comprising:a generally annular seal support in part received in a first opening in one of said wheels and spacers and including a generally radially extending flange having an annular recess in axial registration with an opposed face of another of said wheel and spacers; a seat bushing in part received in a second opening of said another wheel and spacer in axial opposition to said first opening and having a seat; and a seal between said seal support and said bushing, said seal including an annular frustoconically-shaped element having a radially outer edge portion engaging said seal support in said recess thereof and a radially inner edge portion engaging said seat for sealing between said seal support and said seat.