Patent ID: 7641804
Filing Date: 2010-01-05
Classification: B01D

Abstract:
1. A filter unit for filtering a fluid, said filter unit comprising a frame and a filter medium mounted on and sealingly connected to the frame, wherein said frame has an outer contour region which extends on both the upstream side and the downstream side of the filter medium, said frame forming an unfiltered flow nozzle for discharging unfiltered fluid upstream of the filter medium and a filtered flow nozzle for collecting filtered fluid downstream of the filter medium, and said frame further comprising a plurality of support webs for the filter medium disposed on the downstream side of the filter medium, said filter medium being connected to said support webs and being sealingly fixed to the unfiltered flow nozzle, wherein the unfiltered flow nozzle has a height H unfiltered at least as high as the height H contour of the outer contour region extending on the downstream side of the filter medium, and wherein the filter medium also is sealingly fixed to the filtered flow nozzle, and the filtered flow nozzle has a height h filtered at least as high as the height h contour of the outer contour region extending on the upstream side of the filter medium.