Filter device and filter apparatus comprising such filter devices

Abstract

Described as a filter device for filtering particles out of a gaseous fluid, having a substrate (22) and a filter layer provided on the substrate (22). The filter layer is a filter liquid (36) which wets the substrate (22). At least one such filter device (20) is arranged in a housing (12) to provide a filter apparatus (10). The housing (12) has an inlet opening (14) and an outlet opening (16) for the fluid to be filtered. In order for the gas-pervious substrate (22) of the at least one filter device (20) of the filter apparatus (10) to be well wetted with the filter liquid (36), provided in the housing (12) is a watering means (44) which is in fluid communication with the filter devices (20) and which is also in fluid communication with a collecting chamber (38) for the filter liquid (36). A pump (47) serves for circulating the filter liquid (36) between the collecting chamber (38) and the watering means (44) (FIG. 1).

Dependencies are inferred from the claim text.