Filtering Device for Viscous Fluids with Axial Flow Channels
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Solution Overview
Problem
Conventional filtering devices for highly viscous fluids require a wide housing and large mounting space due to the need for multiple sub-channels, which increases material costs and is not suitable for numerous screen cavities disposed in opposing pairs on a screen bearing piston.
Innovation Solution
The filtering device features a single, straight intake and discharge channel that runs parallel to the screen bearing piston holes, allowing tangential intersection with screen cavities, reducing the necessary housing width and eliminating branching points, thereby simplifying production and enabling a more compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sub-channels are used to supply screen cavities from lateral intake opening, then all screen cavities can be supplied, but housing width must be large to avoid small redirection angles
Solution Approach 1:
The patent repositions the intake and discharge openings from lateral surfaces to the axial ends of the housing. This dimensional change allows flow channels to run axially through the housing, eliminating the need for lateral sub-channels with small redirection angles. The screen cavities are supplied axially from the end openings, transforming the flow path geometry from lateral to axial dimension.
2Adaptability or versatility
If wide housing is used to accommodate sub-channels, then screen cavities can be supplied, but device mass and material costs increase
Solution Approach 1:
By moving openings to axial ends and routing channels axially, the housing width is minimized to only what is necessary for the screen bearing piston holes. This eliminates the need for wide housing to accommodate lateral sub-channels, directly reducing material usage and housing mass while maintaining the capability to supply multiple screen cavities.
3Adaptability or versatility
If multiple sub-channels with branching points are used, then screen cavities can be supplied, but flow resistance increases
Solution Approach 1:
The patent extracts and eliminates the branching points from the flow channel system. Instead of having multiple sub-channels branching from a main channel, a single straight flow channel runs axially and supplies all screen cavities directly. This removal of branching geometry eliminates flow mechanical hindrances and reduces flow resistance.
4Ease of manufacture
If lateral intake and discharge openings are used, then conventional design is maintained, but mounting space and housing width increase
Solution Approach 1:
The patent relocates openings from lateral surfaces to axial ends of the housing. This repositioning changes the mounting interface from side-mounted to end-mounted, reducing the required mounting space footprint. The axial configuration allows the housing width to be minimized to only the diameter of screen bearing piston holes, eliminating the need for lateral space for sub-channel connections.
Data Source
AI summary
The invention relates to a filtering device for highly viscous fluids, having at least two parallel screen plungers which are arranged in a displaceable fashion in screen plunger bores of a housing and which have in each case at least one screen cavity in which at least one filter element is arranged, wherein the housing has an inflow opening from which, on the untreated side, at least one flow duct leads to each screen plunger bore, and the housing has at least one flow duct which, on the clean side, leads from each screen plunger bore to an outflow opening. On the untreated side and/or on the clean side, in each case one common flow duct leads rectilinearly along both screen plunger bores and, in a production position, tangentially intersects the screen cavities.