Air drying cartridge for vehicles' compressed-air brake system

US5779772A · kind A · utility

Assignee

• KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH · DE

Inventors

• Hans Unger · Weinheim, DE
• Wolfgang Hatz · Munich, DE
• Herbert Tschewik · Haimhausen, DE

Key dates

• Filing date: May 16, 1996
• Grant date: Jul 14, 1998
• Expiry date: May 16, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/17
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a drying cartridge for air drying installations, especially for vehicle air-brake systems, an air drying agent is contained inside an outer pot, the base region of which can be closed off by a face cover. A central screw with a thread at its end passing through the face cover and securable to the dryer casing extends axially and centrally through the drying cartridge. The face cover, which may be made of thin plastic, can move to a limited extent in relation to the outer pot of the drying cartridge and is secured by clamping or friction to an O-ring which in turn is introduced into an annular groove in the central screw such that, after the drying cartridge has been released from the dryer casing, the cartridge can still be handled as a structural unit. All that is necessary to dispose of the filter and granulate material (drying agent) in the drying cartridge is to move the face cover inwards in relation to the outer pressure of the drying cartridge in order to release the frictional and clamping connection with the O-ring and then completely dismantle the individual components of the cartridge.