Compressor rotor structure and method for arranging said rotor structure

US11959485B2 · kind B2 · utility

Assignee

• Siemens Energy Global GmbH & Co. KG · DE

Inventors

• Mark J. Kuzdzal · Allegany, US
• David J. Peer · Olean, US
• Marcus Meyer · Mission Viejo, US
• Sebastian Huth · Rheydt, DE
• James M. Sorokes · Olean, US
• Kevin Miny · Essen, DE
• Martin Reimann · Tucson, US
• Roman Mensing · Düsseldorf, DE
• Jesus Pacheco · Jalisco, MX
• Steven Nove · Pleasant Hill, US

Key dates

• Filing date: May 14, 2020
• Grant date: Apr 16, 2024
• Expiry date: May 14, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04D29/624
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Compressor rotor structure and methodology for harmonizing compressor aerodynamics and rotordynamics are provided. Disclosed embodiments benefit from a compressor design effective for improving rotordynamics (e.g., stiffer rotor structure) without reducing a usable aerodynamics range of the compressor. This design may involve variation of the rotor structure along the rotor axis to locate respective surfaces defined by respective inlets of the one or more impellers at a varying distance relative to the rotor axis based on respective ratios selected for the configuration of the impeller bodies. This arrangement may be effective for improving rotordynamics while satisfactorily meeting the respective varying aerodynamics requirements at the various compression stages by the impeller bodies.