Eccentric Disk Opening in Filter Device
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Solution Overview
Problem
Conventional filter devices experience high flow resistance due to inhomogeneous flow velocity distribution caused by a 90° deflection of liquid flow, leading to reduced efficiency.
Innovation Solution
The disk opening on the first end disk is arranged eccentrically with respect to the longitudinal central axis of the filter body, increasing the average radius of the 90° flow deflection and homogenizing flow velocities, thereby reducing flow resistance and enhancing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the disc opening is arranged centrally on the first end plate, then the structure is simple and easy to manufacture, but the flow velocity distribution becomes inhomogeneous causing high flow resistance
Solution Approach 1:
The patent applies asymmetry by positioning the disc opening eccentrically relative to the longitudinal central axis of the filter body. This asymmetric arrangement creates a larger average radius for the 90° flow deflection in the cover, which homogenizes the flow velocity distribution and reduces flow resistance, directly resolving the technical contradiction between structural simplicity and flow efficiency
2Ease of operation
If the liquid flow undergoes a 90° deflection in the cover, then the outlet can be positioned radially, but this causes inhomogeneous flow velocity distribution and high flow resistance
Solution Approach 1:
The patent applies local quality by modifying the flow path characteristics through eccentric positioning of the disc opening. This creates a more favorable local flow condition with a larger average deflection radius in the cover area, which homogenizes flow velocity and reduces flow resistance while maintaining the radial outlet positioning capability
Data Source
Figure 1~2
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AI summary
The present invention relates to a filter device (1) for filtering a liquid, comprising a filter element (8) which is replaceably inserted into a filter receiving chamber (4) and in which a raw side (9) fluidically connected to an inlet (6) separates from a clean side (10) fluidically connected to an outlet (7), and comprising a cover (11) which axially closes the filter receiving chamber (4) and which has a radial cover opening (12) through which the outlet (7) is fluidically connected to the clean side (10), wherein the filter element (8) comprises a hollow cylindrical filter body (13), a first end disk (17) and a second end disk (19), and wherein the first end disk (17) has an axial disk opening (21) which is open to the filter interior (14), so that the outlet (7) is fluidically connected to the filter interior (14) through the cover opening (12) and through the disk opening (21).The efficiency of the filter device (1) can be improved by arranging the disk opening (21) on the first end disk (17) eccentrically with respect to a longitudinal central axis (22) of the filter element (8).