Dämpferelement für ein Vibrationsdämpfungssystem in einer Körperöffnung in einer Laufschaufel in einer Turbine und Vibrationsdämpfungssystem für eine Laufschaufel

Details

Veröffentlichungs-Nr.

EP4484710

Aktenzeichen

EP24180121

Anmeldetag

5. Juni 2024

Veröffentlichung

1. Januar 2025

Rechtsraum

EP

IPC

F01D5/26F01D5/16F01D25/06B22F5/00

Abstract

A damper element and a vibration dampening system (120, 320) including a plurality of the stacked damper elements (170, 370), are provided. The damper element(s) (170, 370) may be used in a body opening (160) in a rotating blade (114) in a turbine (108). The damper elements (170, 370) include a head member (172, 202, 224, 342) having an at least partially ramped surface (174, 204, 226, 344), and a plurality of flexible legs (180) extending from the head member. Each flexible leg (180) includes a radially extending body section (182) having an end section (184), and the end section has an outer end surface (186) and an inner end surface (188). Centrifugal force caused by rotation of the rotating blade (114) cause the head member (172, 202, 224, 342) of an adjacent damper element (170, 370) to force the outer end surfaces (186) of the plurality of flexible legs (180) into frictional engagement with an inner surface (162) of the body opening (160) to dampen vibration. In certain embodiments, an elongated body (392) may extend through an opening (390) in the head member of the damper element(s).

Anmelder

Firmen

GE Vernova Technology GmbH
General Electric Technology GmbH

Land

🇨🇭 Schweiz

Fachgebiete