公开(公告)号：EP1086736B1

公开(公告)日：2003-03-19

申请号：EP00119680.7

申请日：2000-09-08

申请人： Fleetguard, Inc.

发明人： Liu, Zhili G. ,  Jaroszczyk, Tadeusz ,  Moy, Jerald J.

IPC分类号： B01D46/52

CPC分类号： B01D46/521 ,  B01D46/0001 ,  B01D46/10 ,  B01D2265/04 ,  B01D2275/105

公开(公告)号：EP1203609B1

公开(公告)日：2007-12-12

申请号：EP01124182.5

申请日：2001-10-11

申请人： FLEETGUARD, INC.

发明人： Kallsen, Kent J. ,  Jaroszczyk, Tadeusz ,  Fallon, Stephen L. ,  Liu, Z. Gerald ,  Moy, Jerald J. ,  Morgan, Jeffrey S. ,  Connor, Michael J. ,  Heckel, Scott P. ,  Wake, Jon S. ,  Mr. Gerald P. Eiling

IPC分类号： B01D46/52 ,  B01D29/11

CPC分类号： B01D46/521 ,  B01D29/21 ,  B01D29/58 ,  B01D29/96 ,  B01D46/0024 ,  B01D46/0095 ,  B01D46/2414 ,  B01D2201/02 ,  B01D2201/34 ,  B01D2279/60 ,  Y10S55/28

摘要： An open flow fluid filter has a pleated main filter element having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips. The loop has a hollow interior extending along an axis. Fluid to be filtered flows through the main filter element from an upstream dirty side to a downstream clean side, and flows axially in the hollow interior. The main filter element has an axial flow passage extending along the axis and circumscribing the hollow interior and has a flow perimeter greater than the inner perimeter. A safety filter element downstream of the main filter element filters both the axial flow in the hollow interior and additional flow between the flow perimeter and the inner perimeter. A filter with additional flow is also provided.