Air dryer cartridge and method for operating an air dryer cartridge
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorEduard Hilberer
Life of this patent
Estimating the term…
Abstract
An air dryer cartridge is provided for a compressed air supply system, in particular a compressed air supply system of a commercial vehicle, with a drying agent box which is filled with a drying agent. The drying agent box can be coupled in an axial direction to a connecting flange of the compressed air supply system. A seal, which is designed as a non-return valve and, in the fitted state of the air dryer cartridge, acts in a sealing manner between the drying agent box and the connecting flange, is arranged on the drying agent box. A method for operating the air dryer cartridge on the compressed air supply system is also provided.
Claims10
An air dryer cartridge for a compressed air supply system of a vehicle, comprising:
- a desiccant box filled with a desiccant, the desiccant box being coupleable in an axial direction to a connecting flange of the compressed air supply system;
- a seal arranged on the desiccant box, the seal being operatively configured as a non-return valve which, when the air dryer cartridge is in a mounted state, exerts a sealing-off action between the desiccant box and the connecting flange;
- and
- wherein the seal has a U-shaped cross-sectional profile, at least one leg of which provides a flexible lip.
A method of operating an air dryer cartridge on a compressed air supply system of a vehicle, the method comprising the acts of:
- during a delivery phase of the compressed air supply system, sealing-off a desiccant box of the air dryer cartridge and a connecting flange of the compressed air supply system via a seal arranged on the desiccant box, the seal having a U-shaped cross-sectional profile with a flexible lip;
- and
- during a flushing phase of the compressed air supply system, allowing a controlled escape of air between the connecting flange and the desiccant box via the seal arranged on the desiccant box.
Dependencies are inferred from the claim text.