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US 11,491,424 B2Granted
Filter element for filtering a fluid and a filter unit formed therefrom
AssigneeNordson Holdings S.A.R.L. & Co. KG
InventorsStefan Wöstmann, Christian Schröder
Life of this patent
Estimating the term…
Abstract
A filter element for filtering a fluid comprises a first clamping ring with an outer ring; a first filter disk; a first inner support plate for supporting the first filter disk and which faces to the outside or to an inner flow channel; a second inner support plate provided with recesses; a second filter disk arranged adjacent the second inner support plate; and a second clamping ring which is connected to the first clamping ring by connecting elements. The filter disks and the inner support plates are arranged inside a housing which is formed by the clamping rings, by at least one outer ring and by outer support plates provided with recesses and covering the filter disks on the outside.
Claims24
A filter element, comprising:
- a first clamping ring with an outer ring and a first integrated support plate having perforations extending directly therethrough;
- a metallic first filter disk adapted to filter a plastic melt fluid, said first filter disk having opposed first and second surfaces, said first surface of said first filter disk supported by said first integrated support plate;
- a first inner support plate having perforations extending therethrough, said first inner support plate configured to support said second surface of said first filter disk;
- a second inner support plate having perforations extending therethrough, said second inner support plate spaced apart from said first inner support plate to form an inner flow channel between said first inner support plate and said second inner support plate;
- a metallic second filter disk adapted to filter the plastic melt fluid, said second filter disk having opposed first and second surfaces, said first surface of said second filter disk supported by said second inner support plate;
- a second clamping ring with a second integrated support plate having perforations extending directly therethrough, said second integrated support plate configured to support said second surface of said second filter disk;
- a spacer element positioned between said first inner support plate and said second inner support plate to form said inner flow channel;
- and
- a plurality of connecting elements removably coupling said first clamping ring and said second clamping ring to clamp said first filter disk, said first inner support plate, said second inner support plate, said spacer element, and said second filter disk therebetween, such that said first integrated support plate, said first filter disk, said first inner support plate, said second inner support plate, said second filter disk, said spacer element, and said second integrated support plate are configured to be disassembled and reassembled,
- wherein said first integrated support plate comprises opposed first and second surfaces, wherein said second surface of said first integrated support plate supports said first surface of said first filter disk, wherein said first surface of said first integrated support plate substantially defines a first planar surface extending to peripheries of said first clamping ring intersecting with said outer ring,
- wherein said second integrated support plate comprises opposed first and second surfaces, wherein said first surface of said integrated second support plate supports said second surface of said second filter disk, wherein said second surface of said second integrated support plate substantially defines a second planar surface extending to the peripheries of said second clamping ring,
- wherein peripheral edges of said first and second inner support plates are each flush to a circumferential inner surface of said outer ring,
- wherein said inner flow channel extends through said first filter disk, said first inner support plate, said second inner support plate, and said second filter disk,
- wherein said first filter disk is disposed between said first clamping ring and said first inner support plate, and said second filter disk is disposed between said second clamping ring and said second inner support plate, and
- wherein said first filter disk and said second filter disk each have an outer diameter extending circumferentially around said first filter disk and said second filter disk, respectively, said outer diameters of said first and second filter disks being configured to contact said outer ring of said first clamping ring such that a seal is formed between said first clamping ring and said first and second filter disks.
12 more elements
A filter element, comprising:
- a first clamping ring with an outer ring and a first integrated support plate having perforations extending directly therethrough;
- a metallic first filter disk adapted to filter a plastic melt fluid, said first filter disk having opposed first and second surfaces, said first surface of said first filter disk supported by said first integrated support plate;
- a first inner support plate having perforations extending therethrough, said first inner support plate configured to support said second surface of said first filter disk;
- a second inner support plate having perforations extending therethrough, said second inner support plate spaced apart from said first inner support plate to form an inner flow channel between said first inner support plate and said second inner support plate;
- a metallic second filter disk adapted to filter the plastic melt fluid, said second filter disk having opposed first and second surfaces, said first surface of said second filter disk supported by said second inner support plate;
- a second clamping ring with a second integrated support plate having perforations extending directly therethrough, said second integrated support plate configured to support said second surface of said second filter disk;
- a spacer element positioned between said first inner support plate and said second inner support plate to form said inner flow channel;
- and
- a plurality of connecting elements removably coupling said first clamping ring and said second clamping ring to clamp said first filter disk, said first inner support plate, said second inner support plate, said spacer element, and said second filter disk therebetween, such that said first integrated support plate, said first filter disk, said first inner support plate, said second inner support plate, said second filter disk, said spacer element, and said second integrated support plate are configured to be disassembled and reassembled,
- wherein said first and second inner support plates have matching size and shape and terminate at outer circumferences that each have a T-shaped cross-section as taken along a plane extending along a longitudinal axis of the filter element,
- wherein the outer circumference of said spacer element abuts radially-inward portions of said first and second inner support plates having T-shaped cross-sections,
- wherein said inner flow channel extends through said first filter disk, said first inner support plate, said second inner support plate, and said second filter disk,
- wherein said first filter disk is disposed between said first clamping ring and said first inner support plate, and said second filter disk is disposed between said second clamping ring and said second inner support plate, and
- wherein said first filter disk and said second filter disk each have an outer diameter extending circumferentially around said first filter disk and said second filter disk, respectively, said outer diameters of said first and second filter disks being configured to contact said outer ring of said first clamping ring such that a seal is formed between said first clamping ring and said first and second filter disks.
11 more elements
Dependencies are inferred from the claim text.