公开(公告)号：US20240226776A1

公开(公告)日：2024-07-11

申请号：US18559587

申请日：2022-05-06

Applicant: ALFA LAVAL MOATTI SAS

Inventor： Adrien NICOLLE

IPC: B01D25/26 ,  B01D25/00 ,  B01D25/32

CPC classification number: B01D25/26 ,  B01D25/001 ,  B01D25/327 ,  B01D2201/347 ,  B01D2201/4053

Abstract: A filter comprising a casing and a plurality of filtering elements stacked between a first cover and a second cover, wherein the first cover rests against the casing in a stacking direction of the filtering elements, wherein the filter further comprises a cover backing coupled to the second cover by a return system configured to return the second cover towards the first cover, wherein the cover backing rests against the casing in the stacking direction and the second cover separates a zone of the casing adapted to receive filtered fluid from a zone of the casing adapted to receive fluid to filter.

公开(公告)号：US20220331715A1

公开(公告)日：2022-10-20

申请号：US17636128

申请日：2020-06-29

Applicant: Alfa Laval Moatti SAS ,  Alfa Laval Corporate AB

Inventor： Adrien NICOLLE

IPC: B01D25/32 ,  B01D25/26

Abstract: A filtering unit includes a filtering component having a pre-filter chamber circumferentially compartmented in sectors, a filtering medium and a post-filtering chamber, a divider arranged coaxially with the filtering component and having distinct distribution columns, a cover and a rotary backwashing distributor having a shutter provided with a discharge opening. The rotary backwashing distributor is mounted to rotate so that the discharge opening is periodically and selectively put into communication with each distribution column. Each distribution column periodically and selectively establishes communication between the discharge opening and respective ones of the sectors. The filtering unit further includes a dividing plate arranged between the cover and the rotary backwashing distributor, the dividing plate being detachably secured with respect to the cover and having apertures opening into the distribution columns. The shutter abuts the dividing plate at least around the discharge opening.