Air dryer cartridge

US7846242B2 · kind B2 · utility

Assignee

• Wabco GmbH & Co. Ohg. · DE

Inventors

• Mark Paling · Longridge, GB
• Andrew Blackwood · Leeds, GB
• Ignitius Milomo · Bradford, GB
• Stephan Niemeyer · Ludwigsburg, DE
• Christian Fischer · Fellbach, DE
• Andreas Stephan · Fredenbeck, DE

Key dates

• Filing date: May 19, 2004
• Grant date: Dec 7, 2010
• Expiry date: Nov 21, 2026

Classification

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

Abstract

An air dryer desiccant cartridge, the cartridge comprising a base having an inlet and an outlet, and a casing connected to the base to define a cavity there between, wherein the cavity contains a filter and a desiccant, the filter being arranged upstream of the desiccant such that during normal operation fluid flow entering the cartridge through the inlet passes through the filter and then on to the desiccant before reaching the outlet, and during purging of the cartridge purge flow entering the outlet passes through the desiccant before reaching the filter, wherein further the cartridge includes a valve operable to permit a portion of the purge flow to bypass the filter.