Patent ID: 8398854

Claim:
A filter system for removing impurities from a fluid, comprising: a pressure stable filter housing enclosing a housing interior that has a clean region and an unclean region, and at least one cylindrical filter body provided in the housing interior, wherein each filter body has at least two cylindrical filter elements that are designed as generally identical modular components and that are axially attached to one another and wherein: i. a feed device is provided that is configured to perform a back flushing operation on the filter body with a flushing medium, ii. the feed device has a feed body that is arranged in the clean region of the housing interior and iii. the feed body comprises a feed element for each filter element, said feed elements being designed as generally identical modular components, wherein a. each feed element feeds the flushing medium to the clean side filter surface of an associated filter element, b. each feed element comprises a feed canal body and a nozzle body fixedly connected thereto in a communicating fashion and is configured such that a circumferential segment of the clean side filter surface of the associated filter element is impinged upon with the flushing medium over an entire axial height thereof, and c. the feed canal bodies are axially connected to one another with a common axis being parallel to the axis of the filter body.