Locking sub-assembly for closing the remaining gap between the first and the last of a blade ring which are inserted in a circumferential groove of a turbomachine, and corresponding turbomachine

US8157530B2 · 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: Aug 11, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01D9/042
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A closing assembly is provided. The closing assembly closes the gap remaining between the first blade and the last blade of a blade ring that is inserted in a peripheral groove of a turbo machinery, the assembly consisting of at least two lateral parts, at least one of which may be hooked onto a projection that forms an undercut in the peripheral groove and at least one securing element, which secures the parts from coming detached from the peripheral groove. To provide a particularly reliable closing assembly, the securing element is configured as a pin, joining the parts of the closing assembly in a non-positive fit.