Structured surfaces for turbo-machine parts

US5846055A · kind A · utility

Assignee

• KSB Aktiengesellschaft · DE

Inventors

• Sonke Brodersen · Schriesheim, DE
• Jurgen Schill · Bad Dürkheim, DE
• Helmut Warth · Ludwigshafen, DE

Key dates

• Filing date: Apr 30, 1997
• Grant date: Dec 8, 1998
• Expiry date: Apr 30, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S415/914
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A turbo-machine comprises a housing. The housing has internal surfaces which come into contact with fluid flowing through the turbo-machine. The surfaces have an ordered, fine, sharp-edged groove structure that is affixed to the surfaces, such that the groove structure extends predominantly in the flow direction.