Filter cartridge having vibratable diaphragm

US6143046A · kind A · utility

Assignee

• Firma Carl Freudenberg · DE

Inventors

• Hans Wiegand · Fürth, DE
• Uwe Visel · Birkenau, DE

Key dates

• Filing date: Sep 9, 1998
• Grant date: Nov 7, 2000
• Expiry date: Sep 9, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D46/62
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter cartridge, including a tubular filter element which encloses an interior space on the downstream, clean air side, is joined in the axial direction on one side to a side-face lid, forming a seal. In order to reduce pressure peaks which occur in the filter element on the clean air side, the lid has a diaphragm which is capable of vibrating.