公开(公告)号：US20030121845A1

公开(公告)日：2003-07-03

申请号：US10371825

申请日：2003-02-21

Applicant: Donaldson Company, Inc.

Inventor： Wayne M. Wagner ,  Gary R. Gillingham ,  Joseph C. Tokar ,  Daniel T. Risch ,  Jim C. Rothman ,  Fred H. Wahlquist ,  Bernard A. Matthys ,  Gregory L. Reichter ,  Stephen W. Sabelko ,  Bryan D. Patten

IPC: B01D027/06

CPC classification number: B01D46/0001 ,  B01D25/001 ,  B01D25/24 ,  B01D25/26 ,  B01D25/30 ,  B01D25/305 ,  B01D46/0095 ,  B01D46/525 ,  B01D2201/44 ,  B01D2271/02 ,  Y10T156/1016 ,  Y10T156/102 ,  Y10T156/1025 ,  Y10T156/1084 ,  Y10T428/2457

Abstract: Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.

Abstract translation: 槽形过滤介质包括具有形成在其中的多个槽纹的过滤材料，其中相邻槽纹的交替端部关闭以迫使流体通过过滤材料。 过滤介质的第一实施例包括锥形凹槽，其具有比封闭凹槽更大横截面的凹槽的开口端，其中上游开口凹槽朝向下游端汇聚，并且上游闭合端凹槽向下游端发散。 第二实施例包括不对称形成的过滤介质，其具有不同的上游和下游槽纹横截面，其具有较大的凹槽开口到过滤器的上游侧。 第三实施例包括具有被上压边缘压缩以改善上游边缘流动的上游边缘的过滤介质。 第四实施例包括具有从上游边缘凹陷的上游密封材料的过滤介质，用于减少在过滤器的上游边缘处的堵塞的影响。