公开(公告)号：US20180008913A1

公开(公告)日：2018-01-11

申请号：US15545403

申请日：2016-02-24

Applicant: HYDAC PROCESS TECHNOLOGY GMBH

Inventor： Markus BREINIG ,  Sebastian HRIN ,  Hans-Juergen LINGEN

IPC: B01D29/66 ,  B01D29/56

CPC classification number: B01D29/665 ,  B01D29/52 ,  B01D29/56 ,  B01D29/668 ,  B01D2201/08 ,  B01D2201/16

Abstract: Disclosed is a system for filtering fluids comprising a primary filter (2) having at least one filter element that can be penetrated in one direction during the filtration process and can he penetrated in the opposite direction for a backflushing process, further comprising an aftertreatment device (36) which is mounted downstream of the priniaty filter (2) in order for the backflushed quantities discharged by the primary filter to be processed and which includes at least one filter chamber (11) that holds the backflushed quantities and has a fluid inlet, a fluid outlet and at least one aftertreatment filter element (19), and comprising a control device (9) for delivering one portion of the backflushed quantity at a time to the associated aftertreatment filter element (19).

公开(公告)号：US20200246731A1

公开(公告)日：2020-08-06

申请号：US16758239

申请日：2018-10-23

Applicant: HYDAC PROCESS TECHNOLOGY GMBH

Inventor： Sebastian HRIN ,  Hans-Jürgen LINGEN

IPC: B01D29/52 ,  B01D29/66

Abstract: A filter device for cleaning particulate contaminants from a fluid flow, comprising a plurality of filter elements (34, 60) which are accommodated in filter chambers (12, 14, 32) as components of a joint filter housing (10) and are grouped around a backwash device (20) having a piston accumulator (56) for receiving a backwash fluid, in the storage housing (64) of which piston accumulator a piston (57) is guided in a longitudinally movable manner, which, controlled by a pressure medium, passes on the backwash fluid stored in the storage housing (64) on to at least one filter element (60) to be backwashed for cleaning purposes via a backwash device (20), which also discharges the backwash fluid from the filter device, is characterized in that a specific filter element as a bypass filter element (34), which is selected from the plurality of filter elements (34, 60), exclusively removes particles after a changeover device (18) has been actuated, and the other filter elements (60) are excluded from this removal process.

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).