公开(公告)号：US10675568B2

公开(公告)日：2020-06-09

申请号：US16278283

申请日：2019-02-18

Applicant: Caterpillar Inc.

Inventor： Jeffrey R. Ries ,  Bryant Allan Morris ,  Samuel D. Oanes

IPC: B01D29/33 ,  F02M37/22 ,  B01D36/00 ,  B01D27/08 ,  B01D29/92

Abstract: A center tube for use with a filter element includes a unitary body having a standpipe that defines a length along the longitudinal axis and a central flow passage and a plurality of radially extending flow fins attached to the standpipe, the flow fins spaced axially from one another along the standpipe to define radial flow channels, wherein each of the fins further defines a first aperture between the fin and the standpipe, the apertures together defining a first outer axial flow passage and the standpipe defines a rectangular shape.

公开(公告)号：US20190176061A1

公开(公告)日：2019-06-13

申请号：US16278283

申请日：2019-02-18

Applicant: Caterpillar Inc.

Inventor： Jeffrey R. Ries ,  Bryant Allan Morris ,  Samuel D. Oanes

IPC: B01D29/33 ,  B01D36/00 ,  F02M37/22 ,  B01D29/92 ,  B01D27/08

CPC classification number: B01D29/33 ,  B01D27/08 ,  B01D29/925 ,  B01D36/001 ,  B01D36/003 ,  B01D36/006 ,  B01D2201/0415 ,  B01D2201/291 ,  B01D2201/295 ,  B01D2201/316 ,  F02M37/22

Abstract: A center tube for use with a filter element includes a unitary body having a standpipe that defines a length along the longitudinal axis and a central flow passage and a plurality of radially extending flow fins attached to the standpipe, the flow fins spaced axially from one another along the standpipe to define radial flow channels, wherein each of the fins further defines a first aperture between the fin and the standpipe, the apertures together defining a first outer axial flow passage and the standpipe defines a rectangular shape.

公开(公告)号：US10245532B2

公开(公告)日：2019-04-02

申请号：US15478339

申请日：2017-04-04

Applicant: Caterpillar Inc.

Inventor： Jeffrey R. Ries ,  Bryant Morris ,  Samuel D. Oanes

IPC: B01D29/33 ,  F02M37/22 ,  B01D36/00 ,  B01D27/08 ,  B01D29/92

Abstract: A center tube for use with a filter element comprises a unitary body having a standpipe that defines a length along the longitudinal axis and a central flow passage and a plurality of radially extending flow fins attached to the standpipe, the flow fins spaced axially from one another along the standpipe to define radial flow channels, wherein each of the fins further defines a first aperture between the fin and the standpipe, the apertures together defining a first outer axial flow passage and the standpipe defines a rectangular shape.