Impeller

US4930984A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bruno Kesel · Bühl, DE
• Gerhard Zink · Laufenburg (Baden), DE
• Karin Winter · Gau-Algesheim, DE

Key dates

• Filing date: Jul 13, 1989
• Grant date: Jun 5, 1990
• Expiry date: Jul 13, 2009

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04D29/327
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An impeller comprises a central hub part, and a plurality of vanes extending from the central hb part, the plurality of vanes including two first neighboring vanes having a predetermined construction and at least one second vane located between the first vanes and having a construction which is different from the construction of the first vanes.