Filter cartridge for a reducing agent delivery device and delivery device and motor vehicle having a filter cartridge
AssigneeEMITEC Gesellschaft fuer Emissionstechnologie mbH
InventorGeorges Maguin
Life of this patent
Estimating the term…
Abstract
A filter cartridge for a delivery device for a reducing agent includes at least one filter wall and at least one supporting wall together forming an interior space. The at least one supporting wall has an outflow opening and a bypass opening. The outflow opening can be coupled to the delivery device and the bypass opening bypasses the filter wall. A delivery device and a motor vehicle having a filter cartridge are also provided.
Claims14
A filter cartridge for a delivery device for a reducing agent, the filter cartridge comprising:
- at least one filter wall and at least one supporting wall together forming an interior space receiving reducing agent filtered by said at least one filter wall;
- said at least one supporting wall having an outflow opening discharging the filtered reducing agent out of said interior space and a bypass opening discharging the filtered reducing agent out of said interior space when a predefined excess pressure prevails in said interior space;
- said outflow opening having a first diameter and said bypass opening having a second diameter being less than one tenth of said first diameter;
- said outflow opening configured to be coupled to the delivery device and said bypass opening bypassing said outflow opening.
A filter cartridge for a delivery device for a reducing agent, the filter cartridge comprising:
- at least one filter wall and at least one supporting wall together forming an interior space receiving reducing agent filtered by said at least one filter wall;
- said at least one supporting wall having an outflow opening discharging the filtered reducing agent out of said interior space and an always open bypass opening discharging the filtered reducing agent out of said interior space when a predefined excess pressure prevails in said interior space, said bypass opening being smaller than said outflow opening, said bypass opening having a screen spanning said bypass opening for preventing impurities from entering said interior space through said bypass opening;
- said outflow opening configured to be coupled to the delivery device and said bypass opening bypassing said outflow opening.
Dependencies are inferred from the claim text.