公开(公告)号：US09108128B2

公开(公告)日：2015-08-18

申请号：US14197445

申请日：2014-03-05

Applicant: Hydac Filtertechnik GmbH

Inventor： Andreas Schmitz ,  Edwin Koch ,  Matthias Schwender ,  Claudia Brocker

IPC: B01D35/00 ,  B01D29/21 ,  B01D39/20

CPC classification number: B01D35/005 ,  B01D39/2017 ,  B01D2201/12 ,  B01D2201/50 ,  B01D2239/0241

Abstract: A filter has a filter medium (10) during operation clears fluid, particularly in the form of hydraulic fluid. The filter medium (10) is made of a material such that the potential difference to the fluid to be cleaned is low. The parts of the filter medium (10) have different potentials with respect to each other and/or the fluid to be cleaned such that they cancel each other at least partially, specific dissipation is aspired, or a return of electric charge to the associated filter medium (10) is provided, using a charge equalization situation.

Abstract translation: 过滤器在操作期间具有过滤介质（10）清除流体，特别是液压流体的形式。 过滤介质（10）由与要清洗的流体的电位差低的材料制成。 过滤介质（10）的部分相对于彼此和/或待清洁的流体具有不同的电位，使得它们至少部分抵消彼此，特定的耗散被吸收或者将电荷返回到相关联的过滤器 使用电荷均衡情况提供介质（10）。

公开(公告)号：US11305216B2

公开(公告)日：2022-04-19

申请号：US16647586

申请日：2018-09-06

Applicant: HYDAC FILTERTECHNIK GMBH

Inventor： Matthias Schwender ,  Edwin Koch ,  Daniel Kleemann ,  Ute Lehmann ,  Alexander Nenno ,  Andre Michael Schneider

IPC: B01D29/21 ,  B01D29/54 ,  B01D29/58 ,  B01D35/147

Abstract: A filter device for transmission oil has a filter element (24) insertable into a transmission oil pan (70) with a filter medium (32) separating an unfiltered side from a filtrate chamber connected to an outlet (38, 50, 72), to which a suction oil pump can be connected. The filter medium (32) has a first structural layer (46) having a predetermined surface area and predeterminable filter properties and has a second structural layer (44, 60) having predeterminable filter properties. The surface area of the second structural layer (44; 60) is different from the surface area of the first structural layer (46). The structural layers (44, 46, 60) encompass an inner filter cavity (30) and are pleated having the same type of pleats. The pleated structural layers (44, 46, 60) extend in axial alignment between two end caps (22, 34) of the filter element (24). Viewed in the flow direction of the fluid flow to be cleaned, the structural layers (44, 60) having the higher filtration grade are downstream of an upstream structural layer (46) having a lower filtration grade.

公开(公告)号：US10071327B2

公开(公告)日：2018-09-11

申请号：US14649984

申请日：2013-12-23

Applicant: Hydac Filtertechnik GmbH

Inventor： Edwin Koch ,  Matthias Schwender

IPC: B01D46/00 ,  B01D39/14 ,  B01D39/08 ,  B01D39/16

CPC classification number: B01D39/14 ,  B01D39/083 ,  B01D39/086 ,  B01D39/1623

Abstract: A filter medium for cleaning fluids includes a filter layer (9) formed from a filter material in a pleated web with a longitudinal direction (X) and a transverse direction (Y). A plastic grid (10) forms a support layer, bears against the filter layer (9) and has linear elements (12, 14) delimiting through openings (16) between them. Two groups of linear elements (12, 14) extend approximately at right angles to one another and delimit rectangular through openings (16). The linear elements (14) having a smaller diameter (d2) are in direct contact with the filter layer (9). The linear elements (12) having a larger diameter (d1) and having a greater spacing from one another relative to the filter layer (9) rest on the smaller diameter linear elements (14).

公开(公告)号：US10596493B2

公开(公告)日：2020-03-24

申请号：US13261837

申请日：2012-10-06

Applicant: HYDAC FILTERTECHNIK GMBH

Inventor： Matthias Schwender ,  Andreas Schmitz ,  Edwin Koch ,  Stefan Jochum

IPC: B01D29/13 ,  B01D29/11 ,  B01D29/21

Abstract: A support structure (16) for a filter element includes at least one surface part (10), in which one or more fluid passage openings (12a-12e) with predetermined opening cross-sections are formed. The opening cross-section of at least one fluid passage opening (12a-12e) is at least partially elliptical-shaped.

公开(公告)号：US09943792B2

公开(公告)日：2018-04-17

申请号：US14758629

申请日：2014-01-17

Applicant: Hydac Filtertechnik GmbH

Inventor： Matthias Schwender

IPC: B01D39/16 ,  B01D39/08

CPC classification number: B01D39/083 ,  B01D39/086 ,  B01D39/16 ,  B01D39/1623

Abstract: A filter material for a fluid, particularly a hydraulic fluid, has a multi-layer filter medium (10) through which a fluid can flow and having a filter layer (20) and a drainage layer (32) forming a three-dimensional structure designed to enlarge the flow channels formed for the fluid to flow through. The drainage layer cooperates with an adjacent drainage layer and/or has individual line elements (33) that form a mesh or grid structure. Those line elements are arc-shaped or curved at least to some extent.

公开(公告)号：US20140291235A1

公开(公告)日：2014-10-02

申请号：US13261837

申请日：2012-10-06

Applicant: HYDAC FILTERTECHNIK GMBH

Inventor： Andreas Schmitz ,  Matthias Schwender ,  Edwin Koch ,  Stefan Jochum

IPC: B01D29/13

CPC classification number: B01D29/13 ,  B01D29/111 ,  B01D29/21 ,  B01D2201/0407 ,  B01D2201/0415 ,  B01D2201/52

Abstract: A support structure (16) for a filter element, comprising at least one surface part (10), in which one or more fluid passage openings (12a-12e) with predetermined opening cross-sections are formed, is characterized in that the opening cross-section of at least one fluid passage opening (12a-12e) is at least partially elliptical-shaped.

Abstract translation: 一种用于过滤器元件的支撑结构（16），其包括至少一个表面部分（10），其中形成有具有预定开口横截面的一个或多个流体通道开口（12a-12e），其特征在于，开口十字 至少一个流体通道开口（12a-12e）的截面至少部分为椭圆形。