Side channel blower

US4992021A · kind A · utility

Assignee

• J. Eberspacher · DE

Inventors

• Herbert Langen · Altbach, DE
• Peter Steiner · Edison, US
• Helmut Keinert · Jeffery Road, DE

Key dates

• Filing date: Nov 20, 1989
• Grant date: Feb 12, 1991
• Expiry date: Nov 20, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A50/20
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A side channel blower, preferably for burners for cleaning soot particle filters mounted in exhaust gas lines of vehicles by burning off, is shown, in which a chamber housing (6) with a chamber (5) is arranged on the air discharge side, wherein air flows into said chamber from the side channel blower (1) and said chamber permits adjustable return of air from said chamber into the annular channel (8) via a bypass (12, 13) and return of additional air, also into said annular channel (2), via an air transfer channel (9) that can be closed with a valve (16), and the air delivered can be fed from said chamber to the filters for cleaning by burning off via two air discharge openings (8a, 8b), which can be closed such that one discharge opening is open and the other discharge opening is closed.