Trockengleitringdichtung mit Kegelstumpfförmiger Kohlenstoffkontaktfläche

Details

Veröffentlichungs-Nr.

EP3453838

Aktenzeichen

EP18194105

Anmeldetag

12. September 2018

Veröffentlichung

23. März 2022

Erteilung

23. März 2022

Rechtsraum

EP

IPC

F01D11/00F01D25/18F16J15/30F16J15/34

Abstract

The invention relates to a face seal assembly for a gas turbine engine, the seal (70) includes a seal body (80) having a seal face (76) defining a contact area having an initial radial width (82) disposed between tapered edges (84). The annular seal body (80) defines an axial width (102) between a back surface of the seal body (80) and the seal face (76). A decrease (86) in the axial width (102) of the sealing body (80) due to wear, increases the radially extending contact area from the initial width (82) to a second radial width (88) in a worn condition. Thus, the defined seal pressure exerted by a biasing member, such as a spring, is kept constant. Thereby, the seal may reach its predicted operational life span.

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Firmen

Raytheon Technologies Corporation
United Technologies Corporation

Land

🇺🇸 USA

Fachgebiete