Compressor blade and production and use of a compressor blade

US8951008B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Christian Cornelius · Winsen (Aller), DE
• Bernhard Küsters · North Palm Beach, US
• Stephan Mais · Berlin, DE
• Andreas Peters · Aschau am Inn, DE
• Achim Schirrmacher · Recklinghausen, DE
• Lutz Stephan · Titz, DE
• Bernd Van Den Toorn · Wetter (Ruhr), DE

Key dates

• Filing date: Jun 20, 2005
• Grant date: Feb 10, 2015
• Expiry date: Jan 2, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49336
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a compressor blade of a compressor which, along a main axis, comprises a blade base, a platform area and an adjacent blade profile having a profile tip. The blade profile is configured by a convex wall at the suction end and a concave wall at the pressure end opposite the wall at the suction end. These surfaces extend, with respect to a flow medium, from a leading edge to a trailing edge, a profile center line extending in the center between the two. A front face is arranged on the profile tip at an angle to the main axis, a sealing lip at least partially extending from the leading edge to the trailing edge and the blade profile including the sealing lip having a blade profile height extending in the direction of the main axis. In order to allow for an inexpensive compressor blade having improved aerodynamic properties and a modified sealing lip while having the same sealing properties, the height of the sealing lip is less than 2 percent of the height of the blade profile.