Closing assembly for a blade ring of turbomachinery

US8157531B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Joachim Krützfeldt · Mülheim an der Ruhr, DE
• Markus Kunze · Rostock, DE
• Silvio-Ulrich Martin · Oberhausen, DE
• Stefan Mutke · Berlin, DE
• Kang Qian · Shanghai, CN
• Christoph Richter · Berlin, DE
• Oliver Schneider · Oppenheim, DE
• Peter Schröder · Heßheim, DE
• Michael Schwarz · Herne, DE
• Ulrich Waltke · Wetter (Ruhr), DE

Key dates

• Filing date: Dec 27, 2006
• Grant date: Apr 17, 2012
• Expiry date: Jan 12, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A closing assembly for closing the gap remaining between the first and last blade of a blade ring that is inserted into a peripheral groove of turbomachinery is provided. The assembly includes at least two parts each of which can be hooked onto projections that form an undercut in the peripheral groove and includes a securing element, which secures the parts from becoming detached from the peripheral groove. For closing the remaining gap, the securing element is mounted to rotate about its longitudinal axis between the two parts and has a key head and a web. The web can be positioned by rotation is such a way that to fit the parts in the peripheral groove. The parts can be displaced in relation to one another and to secure the parts from being detached from the groove. The web can be placed against at least one lateral face of one of the parts.