公开(公告)号：US09956509B2

公开(公告)日：2018-05-01

申请号：US15075803

申请日：2016-03-21

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Mark DeVito ,  Dan McAninch

IPC: B01D29/58 ,  B01D29/44 ,  B01D29/66 ,  B05B15/00 ,  F01N3/20 ,  F02M37/22 ,  F02M61/16

CPC classification number: B01D29/58 ,  B01D29/44 ,  B01D29/66 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/1426 ,  F01N2610/1453 ,  F02M37/22 ,  F02M61/165 ,  F02M2200/8061 ,  Y02T10/24

Abstract: A filter assembly may include an outer insert and an inner insert. The outer insert having an aperture and a plurality of outer grooves. The outer grooves are formed in a radially outer periphery of the outer insert and are separated from each other and the aperture. The inner insert may be disposed within the aperture. A plurality of inner grooves may be formed in a radially outer periphery of the inner insert. Each of the outer and inner grooves may have a closed axial end and an open axial end.