Filter Assembly Sloping Locking Mechanism for Hydraulic Systems
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Solution Overview
Problem
Existing filter assemblies for hydraulic systems face difficulties in easy replacement due to the filter element becoming clogged, requiring significant force and space for removal, and often result in oil drips and complex disassembly processes.
Innovation Solution
The filter assembly incorporates a sloping side wall face and corresponding protrusion design, allowing for easy axial pulling of the filter element from the housing, reducing required removal height and minimizing oil drips by guiding the protrusion into the undercut opening, facilitating simple and low-force removal and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter element stays attached to the head when the filter housing is removed, then the filter element can be securely held during operation, but the removal height increases and oil drips onto the machine or floor below
Solution Approach 1:
The locking assembly is segmented into a protrusion on the filter element and a corresponding opening in the filter housing, allowing the filter element to be securely held during operation but easily removed when the housing is detached from the head
Solution Approach 2:
The filter element is extracted from the head along with the filter housing as a unit, eliminating the need to leave the filter element attached to the head and preventing oil drips during removal
2Stability of the object's composition
If the filter element stays attached to the head when the filter housing is removed, then the filter element remains positioned, but large forces are required for removing the filter element from the head
Solution Approach 1:
The locking assembly is divided into a protrusion and a corresponding opening with a sloping side wall face, creating a mechanical advantage that reduces the force required for removal while maintaining stable positioning during operation
Solution Approach 2:
Instead of requiring force to overcome a tight fit, the sloping side wall face of the opening is designed to guide the protrusion during removal, inverting the force requirement by using the geometry of the locking assembly to facilitate rather than resist removal
3Ease of operation
If the filter element is removed after removing the filter housing, then the filter housing can be easily detached, but the removal process becomes complicated and time-consuming
Solution Approach 1:
The filter element and filter housing are merged into a single removable unit through the locking assembly, allowing both to be detached together in one simple operation rather than requiring separate removal steps
Solution Approach 2:
The locking assembly is pre-configured with the protrusion and opening geometry that automatically guides the filter element during removal, eliminating the need for complex manual manipulation or additional tools
Data Source
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AI summary
The invention relates to a filter assembly, comprising a head, a filter housing which can be connected to the head, and a filter element which can be received in the filter housing. The invention further relates to a filter element and a method of replacing a filter element. The filter element comprises a tubular wall provided with a filtration medium; a first end part provided at a first axial end of the filter element; and a second end part provided at a second axial end of the filter element. The second end part of the filter element is provided with a either a protrusion or an undercut opening, on the one hand, and the second end of the housing is provided with either an undercut opening or a protrusion, on the other hand. A side of the protrusion or opening is provided with a sloping face which slopes at a slope with respect to the axial direction of the filter element.