Divided flow guiding device, kit comprising base body and end piece of a flow guiding device, filter unit and method for cleaning

[0105]FIG. 1 illustrates a filter cartridge 1 for removing impurities from a dirty gas flow to be filtered. The filter cartridge 1 includes a cylindrical filter element 2, also referred to as an outer pack, with the filter element 2 being made from filter material. In the cylindrical filter element 2 a filter insert 3 is inserted. The filter insert 3 is also referred to as an inner pack. The filter insert 3 is made from filter material. The filter element 2 and the filter insert 3 are arranged coaxially to each other. Within the filter cartridge 1 thus an inner space 4 is formed which is ring-shaped in the area between the filter element 2 and the filter insert 3. The filter material of the filter element 2 and of the filter insert 3 is designed so that it is cleaned when compressed air flow which flows against a flow direction of the dirty gas flow is applied. The filter cartridge 1 includes a cap 6 in the form of a flow guiding device 5 which is disposed and designed with respect to