公开(公告)号：US20190240600A1

公开(公告)日：2019-08-08

申请号：US16339041

申请日：2017-10-09

Applicant: HYDAC PROCESS TECHNOLOGY GMBH

Inventor： Hans-Juergen LINGEN ,  Stefan KLEIN ,  Raphael KLEIN ,  Markus BREINIG

IPC: B01D29/23 ,  B01D29/54 ,  B01D29/68 ,  B01D35/00 ,  B01D35/147

CPC classification number: B01D29/232 ,  B01D29/54 ,  B01D29/682 ,  B01D29/688 ,  B01D35/005 ,  B01D35/147 ,  B01D2201/082

Abstract: The invention relates to a filter device, in particular for lubri¬cating oil filtration, comprising at least two filter inserts (27), in each of which a filter material (43) is accommodated, which are provided with fluid passage points (37, 39) and can be stacked on top of one another with the formation of a stack, and further comprising a back-flushing device (55,57) which is movably arranged along the inner side of the filter inserts (27). The invention is characterized in that the individual filter inserts (27) are designed as identical parts at least with respect to their housings.

公开(公告)号：US20190381430A1

公开(公告)日：2019-12-19

申请号：US16478893

申请日：2018-02-27

Applicant: HYDAC PROCESS TECHNOLOGY GMBH

Inventor： Hans-Juergen LINGEN ,  Stefan KLEIN ,  Raphael KLEIN ,  Sebastian HRIN

IPC: B01D29/68 ,  B01D29/23 ,  B01D29/52

Abstract: The invention relates to a filter device, in particular for filter¬ing lubrication, consisting of at least one filter insert (19), in which a respec¬tive filter material (27) is received and which is provided with fluid passage points (70) that are delimited by wall parts (63) of the filter insert (19) and with a backflush device (37, 49) that has at least one flush nozzle (49), said flush nozzle being movable along the interior of the respective pairable filter insert (19) by means of a hollow drive shaft (37). The invention is character¬ized in that at least one pair of flush nozzles (49) is provided for each filter insert (19, 21), said flush nozzles having longitudinal slots (73, 74) which are arranged one over the other in the axial direction of the drive shaft (37), wherein the longitudinal slots have an offset relative to one another which runs transversely to the axial direction such that for adjacent flush nozzles (49), at least one part of the longitudinal slot (73) of one flush nozzle (49) overlaps with at least one of the fluid passage points (70) of the pairable filter insert (19, 21) and at least one part of the longitudinal slot (74) of the other flush nozzle (49) at least partly overlaps with the wall parts (63) which delimit the aforementioned fluid passage point of the filter insert (19, 21).