Steam turbine

US6345952B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Heinrich Oeynhausen · Neheim, DE
• Wilfried Ulm · Mülheim an der Ruhr, DE
• Ralf Bell · Mülheim an der Ruhr, DE
• Ulrich Capelle · Oberhausen, DE
• Jan-Erik Mühle · Mülheim an der Ruhr, DE
• Mikhail Simkine · Mülheim an der Ruhr, DE
• Ingo Stephan · Görlitz, DE
• Volker Simon · Mülheim an der Ruhr, DE

Key dates

• Filing date: Jul 14, 1999
• Grant date: Feb 12, 2002
• Expiry date: Jul 14, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01D1/16
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A steam turbine has a turbine shaft directed along a turbine axis. A plurality of turbine stages, each include a guide-blade structure and a moving-blade configuration located axially downstream of the guide-blade structure. The guide-blade structure and the moving-blade configuration are provided along the turbine shaft. Each stage has an average reaction degree achievable between 5% and 70%. The reaction degree of at least two turbine stages is of different values.