公开(公告)号：US10456719B2

公开(公告)日：2019-10-29

申请号：US14851220

申请日：2015-09-11

Applicant: Hengst SE & Co. KG

Inventor： Dieter Baumann ,  Wilhelm Ardes

IPC: B01D35/00 ,  B01D35/16 ,  B01D35/30 ,  B01D35/147 ,  B01D35/153

Abstract: A fluid filter insert for a fluid filter having a filter housing, a cover and a central standpipe with a locking device preventing a closing of the cover, comprising a hollow cylindrical filter material body, two end plates enclosing said filter material body at its ends, at least one protruding member carried on the filter insert. The filter insert is configured to be placed onto the standpipe, and the protruding member of the filter insert, when the filter insert is placed onto the standpipe, is configured to actuate the locking device in an unlocking direction and allowing a complete placing of the filter insert. When the filter insert is placed onto the standpipe, the protruding member is brought into engagement with the locking device, wherein the locking device is moved in the unlocking direction by the protruding member.

公开(公告)号：US10357728B2

公开(公告)日：2019-07-23

申请号：US14917902

申请日：2014-09-06

Applicant: HENGST SE

Inventor： Wilhelm Ardes

IPC: B01D35/30 ,  B01D35/153 ,  B01D35/147 ,  B01D29/21 ,  F01M11/03 ,  F01M13/04 ,  F02M37/22

Abstract: A filter having a filter housing, an inlet for liquid to be filtered and an outlet for filtered liquid. An exchangeable filter insert separates an unfiltered side and a filtered side of the filter. A filter bypass valve has a valve seat and a valve body guided so as to be movable relative to the valve seat and preloaded in the closing direction. The valve seat is fixed to the filter. The valve body is guided in the filter so as to be fixed to the filter. A spring that preloads the valve body in the closing direction is guided in the filter so as to be fixed to the filter. The filter insert has a spring support that, in the state in which the insert is placed into the filter housing, supports and pre-stresses the spring at its end facing away from the valve body.

公开(公告)号：US12053727B2

公开(公告)日：2024-08-06

申请号：US18500365

申请日：2023-11-02

Applicant: Hengst SE

Inventor： Wilhelm Ardes

IPC: B01D35/30 ,  B01D29/15 ,  B01D35/00

CPC classification number: B01D35/30 ,  B01D29/15 ,  B01D35/005 ,  B01D2201/295 ,  B01D2201/304 ,  B01D2201/4053 ,  B01D2201/4092

Abstract: A filter cartridge can prevent a filter housing cover from becoming unintentionally loose, if the filter cartridge includes a wedge element configured to be forced by the fluid pressure into a gap between the filter cartridge and the housing cover.

公开(公告)号：US20240075413A1

公开(公告)日：2024-03-07

申请号：US18502769

申请日：2023-11-06

Applicant: Hengst SE

Inventor： Wilhelm Ardes

IPC: B01D27/08

CPC classification number: B01D27/08 ,  B01D2201/301 ,  B01D2201/34

Abstract: A filter cartridge configured to be removably inserted into a space of a filter housing that has a housing socket and a housing cover with a sealing surface facing inwards. The filter cartridge has a filter element forming a fluid channel with a longitudinal axis, a front end, and a rear end, as well as a connector element with a peripheral surface that provides for an increased filter area, if the peripheral surface includes a first ring surface and a second ring surface (which are plain bearing surfaces) and if a gasket is movably supported in a first axial position on the first ring surface, thereby enabling a translation of the gasket in a first direction to a second axial position onto the second ring surface.

公开(公告)号：US11033842B2

公开(公告)日：2021-06-15

申请号：US16438601

申请日：2019-06-12

Applicant: HENGST SE

Inventor： Wilhelm Ardes

IPC: B01D35/30 ,  B01D35/147 ,  B01D35/153 ,  B01D29/21 ,  F01M11/03 ,  F01M13/04

Abstract: An exchangeable filter insert that separates an unfiltered side and a filtered side of a filter, the filter having a filter housing, an inlet for liquid to be filtered and an outlet for filtered liquid. A filter bypass valve has a valve seat and a valve body guided so as to be movable relative to the valve seat and preloaded in the closing direction. The valve seat is fixed to the filter. The valve body is guided in the filter so as to be fixed to the filter. A spring that preloads the valve body in the closing direction is guided in the filter so as to be fixed to the filter. The filter insert has a spring prestresser support that, in the state in which the insert is placed into the filter housing, supports and pre-stresses the spring at its end facing away from the valve body.

公开(公告)号：US10463996B2

公开(公告)日：2019-11-05

申请号：US15755833

申请日：2016-08-23

Applicant: Hengst SE

Inventor： Wilhelm Ardes

IPC: B01D29/15 ,  B01D29/21

Abstract: A filter which can be attached to a connection flange, wherein the filter has an exchangeable filter insert having a hollow cylindrical filter material body enclosed on its faces by two end plates, wherein the filter has a cup-shaped housing, which can be sealed in the assembled state on the free edge against a sealing surface of the connection flange by means of a circumferential seal, and wherein the seal is arranged on the outside circumference of a circumferential seal carrier forming a part of the filter insert. The filter seal is a sealing ring having a rectangular cross-section in an unloaded state, radial contours being arranged on the outer circumference of the seal carrier, and, during assembly of the housing, the seal can be pressed into the engagement contours and is permanently malleable, undergoing axial shortening and radial expansion on the inner circumference thereof.

公开(公告)号：US10159918B2

公开(公告)日：2018-12-25

申请号：US15557657

申请日：2016-03-08

Applicant: HENGST SE & CO. KG

Inventor： Wilhelm Ardes

IPC: B01D29/15 ,  B01D35/147 ,  B01D35/153 ,  B01D35/30 ,  F01M1/10

Abstract: A filter comprising a filter housing, a removable housing cover closing the housing during operation, a liquid inlet, a filtered liquid outlet, an exchangeable filter cartridge separating a raw side of the filter from a clean side, and a filter bypass valve comprising a valve seat and a valve body movably guided relative to the valve seat and biased in a closed direction. The valve seat is fixed in or on the housing cover, the valve body and a spring pre-loading the valve body in the closed direction are guided in or on the housing cover and are fixed to the cover. The filter cartridge has a spring support, such that when the cartridge is installed in the filter and the housing cover is attached to the housing, the end of the spring facing away from the valve body is supported and pre-stressed via the spring support.

公开(公告)号：US20150157968A1

公开(公告)日：2015-06-11

申请号：US14411424

申请日：2013-06-21

Applicant: Hengst SE & Co. KG

Inventor： Wilhelm Ardes

IPC: B01D35/30 ,  F01M11/03 ,  B01D35/00 ,  B01D35/147

CPC classification number: B01D35/306 ,  B01D29/21 ,  B01D35/005 ,  B01D35/147 ,  B01D35/153 ,  B01D35/16 ,  B01D2201/4007 ,  B01D2201/4023 ,  B01D2201/4046 ,  B01D2201/4084 ,  F01M11/03 ,  F01M2011/031

Abstract: A liquid filter having a housing with a removable screw lid and an interchangeable filter unit, the housing having a discharge channel, wherein a closure valve which when installed is fixed to the housing, is axially adjustable between a closed position when the filter unit is installed and the lid is closed, and an open position when the lid is detached and the filter unit is removed, and wherein releasable coupling elements are provided between the lid or filter unit and the valve. The coupling elements engage to transmit torque and tensile forces, by rotation in the loosening direction of the lid, for as long as a seal of the valve which exerts a braking moment on the valve is located in the sealing seat. The coupling elements disengage when the seal has departed from the sealing seat and the valve is thereby freely rotatable about its longitudinal axis.

Abstract translation: 一种具有壳体的液体过滤器，其具有可移除的螺钉盖和可互换的过滤器单元，所述壳体具有排放通道，其中当安装时固定到壳体上的关闭阀在安装过滤器单元的关闭位置之间可轴向调节 并且盖被关闭，并且当盖被拆卸并且过滤器单元被移除时的打开位置，并且其中可拆卸的联接元件设置在盖或过滤器单元和阀之间。 只要在阀上施加制动力矩的阀的密封件位于密封座中，联接元件通过沿盖的松动方向旋转来传递扭矩和拉力。 当密封已经从密封座离开并且阀因此可以围绕其纵向轴线自由旋转时，联接元件脱离接合。

公开(公告)号：US12214302B2

公开(公告)日：2025-02-04

申请号：US18502769

申请日：2023-11-06

Applicant: Hengst SE

Inventor： Wilhelm Ardes

IPC: B01D27/08

Abstract: A filter cartridge configured to be removably inserted into a space of a filter housing that has a housing socket and a housing cover with a sealing surface facing inwards. The filter cartridge has a filter element forming a fluid channel with a longitudinal axis, a front end, and a rear end, as well as a connector element with a peripheral surface that provides for an increased filter area, if the peripheral surface includes a first ring surface and a second ring surface (which are plain bearing surfaces) and if a gasket is movably supported in a first axial position on the first ring surface, thereby enabling a translation of the gasket in a first direction to a second axial position onto the second ring surface.

公开(公告)号：US11491425B2

公开(公告)日：2022-11-08

申请号：US15755820

申请日：2016-08-23

Applicant: Hengst SE

Inventor： Wilhelm Ardes

IPC: F02M37/42 ,  B01D35/30 ,  F02M37/48 ,  B01D35/153 ,  B01D29/15 ,  B01D35/147 ,  F02M37/36 ,  F01M11/03

Abstract: A fluid filter is mountable on a connection flange having a central stand pipe and an exchangeable filter insert. The insert has a hollow cylindrical filter material body with two end plates on its end faces and is mountable on the stand pipe. A cup-shaped screw housing of the filter can be screwed to a free end of the stand pipe, and supports a seal on a free edge thereof, via which the screw housing is sealable against a connection flange sealing surface when mounted. The filter has a first arrangement on an end face area to center the end face area to the flange. The filter insert has a second arrangement on the end face area outer periphery for centering the screw housing free edge relative to the connection flange sealing surface. The second arrangement interacts in a centering manner with the screw housing free edge when installed.