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公开(公告)号：US20250128191A1
公开(公告)日：2025-04-24
申请号：US18689164
申请日：2022-08-01
Applicant: HYDAC Process Technology GmbH
Inventor： Hans-Jürgen Lingen , Raphael Klein , Sebastian Hrin
Abstract: A filter device is disclosed comprising a filter which is used to clean a fluid flow of particulate contamination in a specifiable flow direction, having a fluid inlet for supplying an unfiltered medium flow, a fluid outlet for removing a filtrate flow, and a discharge opening for discharging a backflushing fluid produced while backflushing the filter against the specifiable flow direction using a backflushing device, wherein as the particulate contamination being cleaned out of the fluid flow by the filter increases, the differential pressure between the fluid inlet and the fluid outlet increases, characterised in that a valve device is arranged downstream of the discharge opening, viewed in the fluid flow direction, said valve device regulating the discharge rate of backflushing fluid as a function of the differential pressure.
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公开(公告)号：US11801463B2
公开(公告)日：2023-10-31
申请号：US16480376
申请日：2018-04-27
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Ralf Wnuk , Thomas Boettcher
CPC classification number: B01D29/668 , B01D29/25 , B01D29/52 , B01D2201/0453 , B01D2201/086 , B01D2201/16 , B01D2201/325
Abstract: A filter apparatus (10) has a plurality of filter elements (20) in a filter housing (12) having a filter inlet (50) for a fluid to be filtered and a filter outlet (52) for the filtered fluid. A pressure control device (42) has at least one control plate (58) located inside a connection chamber (14). The control plate laterally passes over individual upper element openings (54) of the filter element to be backwashed (20), in a predefinable sequence, covering the opening to an increasing degree and then exposing the opening again. A discharge opening (46) of the backwash device (44) is, at least in part, fluidically connected to a lower element opening (56) of the filter element (20) to be backwashed, as the pressure control device (42) moves towards the upper element opening (54).
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公开(公告)号：US20220241708A1
公开(公告)日：2022-08-04
申请号：US17617409
申请日：2020-09-28
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Bernhard SCHLICHTER , Martin WINTER
Abstract: The invention relates to a method of producing a multilayer filter medium, comprising at least the production steps listed below: providing a woven fabric layer (12) having passage points (24) for fluid; providing a nonwoven layer consisting of a spunbonded nonwoven (18) and having additional passage points (28) for fluid; and joining the two superimposed layers (12, 18) along contact points (30) by melting the nonwoven layer (18) in such a way that while the additional passage points (28) enlarge, the molten spunbonded nonwoven material flows at least in part to the contact points (30) and then cumulatively curs there to produce firm connection points between the two layers (12,18).
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公开(公告)号：US20210170312A1
公开(公告)日：2021-06-10
申请号：US16769296
申请日：2018-11-16
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Bernhard SCHLICHTER , Jörg Hermann GERSTNER , Albert KAINTS
Abstract: A filter device, comprising a filter housing (1) having a fluid inlet (8) for unfiltered matter and having a fluid outlet (9) for filtrate and having at least one one-piece or multi-part filter insert (05, 17) held in the filter housing (1), which filter insert (15, 17) can be cleaned using a backwash device (25) having at least one backwash element (31) in counter flow to the direction of filtration, which backwash element can be moved along the inside of the relevant filter insert (15, 17) by means of a fluid-conveying drive shaft (29) of a rotary drive (69, 71), wherein the individual backwash element (31) has, at the end adjacent to this inside, at least one gap-shaped passage opening, which extends in parallel to the axis of rotation of the drive shaft (29) and which opens into a flow chamber connected to the drive shaft (29) in a fluid-conveying manner, is characterized in that at least one further backwash device (27) having at least one further backwash element (31) is present, in that the fluid-conveying drive shaft (29) is divided into chambers (73, 75) separated from each other, and in that in each case one backwash element (31) of one backwash device (25) is connected to one of the chambers (73, 75) and the other backwash element (31) of the other backwash device (27) is connected to another chamber (73, 75).
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公开(公告)号：US10702811B2
公开(公告)日：2020-07-07
申请号：US16301914
申请日：2017-05-24
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Markus Olschok , Christian Schindler , Alexander Schwarzkopf
Abstract: A filter device for fluids includes a housing (1) accommodating a filter element (5). The housing has an inlet (47) for the supply of fluid to be purified to a non-filtrate chamber (49) of the housing (1) and has an outlet 42 for the filtrate. The non-filtrate chamber is separated from a filtrate chamber (46) of the housing (1) by the filter medium (33). A magnetic field-generator unit (57) is arranged inside the non-filtrate chamber (49). An adhering surface a sleeve or casing (51) attracts ferromagnetic particles by a magnetic force effect. In the non-filtrate chamber (49), the sleeve (51) extends outside of the respective filter element (5) parallel to the inlet (47) and transversely to the outlet (42). The non-filtrate chamber (49) at least partially encompasses the outlet (42) at the point of transition to the filtrate chamber (46).
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Patent Agency Ranking
公开(公告)号：US10561966B2
公开(公告)日：2020-02-18
申请号：US15501232
申请日：2015-07-18
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Bernard Schlichter , Stefan Schlachter , Sergej Zeller , Michael Welker
Abstract: A device for treating fluid mixtures, which contain gases, such as hydrogen (H2), air, nitrogen (N2), or natural gases, and liquids, such as ionic liquids, hydraulic fluid, or process liquids, has a first separation stage (29) for separating the fluid mixture into a liquid fraction and a gas fraction contaminated with a remaining liquid fraction. From the gas fraction, the remaining liquid fraction is removed in at least one further separation stage (67).
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公开(公告)号：US20190262749A1
公开(公告)日：2019-08-29
申请号：US16301914
申请日：2017-05-24
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Markus OLSCHOK , Christian SCHINDLER , Alexander SCHWARZKOPF
Abstract: The invention relates to a filter device for fluids, comprising a housing (1) accommodating at least one filter element (5), which has an inlet (47) for the supply of fluid to be purified to a non-filtrate chamber (49) of the housing (1), which is separated from a filtrate chamber (46) of the housing (1) by the filter medium (33) of the respective filter element (5), having an outlet (42) for filtrate, and comprising a magnetic field-generating unit (57) arranged inside the non-filtrate chamber (49), which has an adhering surface (51) in the form of a sleeve for ferromagnetic particles attached thereto by means of a magnetic force effect. The invention is characterized in that in the non-filtrate chamber (49), the respective sleeve (51) extends outside of the respective filter element (5) parallel to the inlet (47) and transversely to the outlet (42), and that the non-filtrate chamber (49) at least partially encompasses the outlet (42) at the point of transition to the filtrate chamber (46).
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公开(公告)号：US11607630B2
公开(公告)日：2023-03-21
申请号：US16339765
申请日：2017-10-09
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Bernhard Schlichter , Joerg Hermann Gerstner , Manfred Deutschmeyer
Abstract: A filter device has a filter housing (1) with a fluid inlet (13) for raw fluid, with a fluid outlet (3) for filtrate and with at least one one-piece or multi-piece filter insert (5, 7) received in the filter housing (1). The filter insert can be cleaned using at least one back-flushing member (21) in counter-current to the filtration direction. This back-flushing member can, by a fluid-guiding driveshaft (23) of a rotary drive (35), be moved along the inner side (19) of the respective filter insert (5, 7) and has, at its end adjacent to this inner side (19), a gap-shaped passage opening (39) that extends parallel to the axis of rotation of the driveshaft (23) and that discharges into a flow space (41; 57; 67) fluidically connected to the driveshaft (23). The flow space at least partially continuously narrows in the direction of the driveshaft (23) in a first plane in which the passage opening (39) lies. In another second plane transverse to the first plane, the flow space (41; 57; 67) at least partially continuously widens proceeding from the passage opening (39) in the direction of the driveshaft (23).
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公开(公告)号：US11484819B2
公开(公告)日：2022-11-01
申请号：US17280959
申请日：2019-09-25
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Ralf Wnuk , Hans-Josef Schmidt , Pascal Eric Vitte
Abstract: A filter device for fluids has a filter housing (1), in which element receptacles (31) for a plurality of filter elements (33) are provided. The filter medium (35) of the filter elements (33) separates in the filter housing (1) a dirt side (5) from a clean side (7). The filter housing (1) can be opened for inserting and removing the filter elements (33). For the filter elements (33), a support basket (19) is provided, which can be inserted into the filter housing (1) and removed from the filter housing (1) and to which the filter elements (33) can be detachably fixed. The filter elements (33) have, in addition to the filter medium (35) for particle filtration, an adsorption medium (36).
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公开(公告)号：US11458424B2
公开(公告)日：2022-10-04
申请号：US16769296
申请日：2018-11-16
Applicant: HYDAC PROCESS TECHNOLOGY GMBH
Inventor： Bernhard Schlichter , Jörg Hermann Gerstner , Albert Kaints
Abstract: A filter device has a filter housing (1) having a fluid inlet (8) for unfiltered matter and having a fluid outlet (9) for filtrate, and has at least one one-piece or multi-part filter insert (15, 17) held in the filter housing (1). Filter insert (15, 17) can be cleaned using a backwash device (25) having at least one backwash element (31) in counter flow to the direction of filtration. The backwash element can be moved along the inside of the relevant filter insert (15, 17) by a fluid-conveying drive shaft (29) of a rotary drive (69, 71). The individual backwash element (31) has, at the end adjacent to this inside, at least one gap-shaped passage opening, which extends in parallel to the axis of rotation of the drive shaft (29) and which opens into a flow chamber connected to the drive shaft (29) in a fluid-conveying manner. At least one further backwash device (27) has a further backwash element (31). The fluid-conveying drive shaft (29) is divided into chambers (73, 75) separated from each other. One backwash element (31) of one backwash device (25) is connected to one of the chambers (73, 75). The other backwash element (31) of the other backwash device (27) is connected to another chamber (73, 75).
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