Spiral housing for a turbomachine

US5624229A · kind A · utility

Assignee

• Man Gutehoffnungshutte Aktiengesellschaft · DE

Inventors

• Joachim Kotzur · Oberhausen, DE
• Franz-Arno Richter · Dorsten, DE
• Lubomyr Turanskyj · Oberhausen, DE

Key dates

• Filing date: Jun 12, 1995
• Grant date: Apr 29, 1997
• Expiry date: Jun 12, 2015

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2250/52
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A spiral housing with a spiral cross-section for a turbomachine, in which a disk diffuser with an upstream annular disk space is asymmetrical to the spiral cross-section. This spiral cross-section has a base circle of substantially constant diameter. The spiral cross-section also has a tongue region and a region adjacent to the tongue with circular spiral cross-sections extending to where an outside diameter of the spiral cross-section equals a specific diameter and the circular spiral cross-sections continue thereafter to increase in cross-section only axially.