Axial turbomachine rotor having a sealing disk

US8920121B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Sascha Dungs · Wesel, DE
• Peter Schröder · Heßheim, DE

Key dates

• Filing date: Mar 26, 2010
• Grant date: Dec 30, 2014
• Expiry date: Oct 30, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01D11/006
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An axial turbomachine rotor is provided. The turbomachine includes a rotor body designed in a rotation symmetrical manner around the rotor axis, a rotor blade ring including rotor blades that are each fixed to the rotor body by the blade foot thereof and a sealing disc designed in a rotation symmetrical manner around the rotor axis that is arranged having the outer edge thereof radially inside, neighboring an axially extending protrusion of the blade foot, so that a hollow space is formed between the blade foot and the sealing disc, wherein a groove exists on the outer edge leading radially to the outside, wherein a sealing ring is mounted that may slide radially to the outside in the groove during operation of the rotor by centrifugal force until the sealing ring radially contacts the inside of the protrusion and thus seals the hollow space on the blade foot.