Filter Element Dual Pin Valve Actuation for Oil Drainage
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Solution Overview
Problem
Existing filter systems for oil change cells in internal combustion engines lack efficient mechanisms to control the drainage and leakage of raw or clean oil, leading to potential contamination and increased complexity in construction.
Innovation Solution
A filter element with two axially projecting pin elements, laterally spaced apart, which actuate valve bodies to control valve openings, allowing for controlled drainage of oil without uncontrolled leakage, and a preassembly group with a filter housing that includes these elements to simplify the filter device construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate valve devices with separate actuation bodies are provided for controlling valve openings, then oil drainage control is improved, but device complexity increases
Solution Approach 1:
The filter element integrates two pin elements directly into its structure, combining the functions of multiple valve actuation mechanisms into a single component. This merging approach maintains reliable oil drainage control while significantly reducing the overall device complexity by eliminating separate valve devices and their actuation bodies.
Solution Approach 2:
The filter element serves multiple functions: it filters oil and simultaneously acts as the actuation mechanism for both valve openings through its two pin elements. This multi-functionality reduces the need for separate specialized components, thereby simplifying the overall construction while maintaining effective oil drainage control.
2Device complexity
If pin elements are integrated into the filter element, then device complexity is reduced, but control precision over valve openings may worsen
Solution Approach 1:
The pin elements are positioned at specific locations on the filter element with precise geometric relationships to the valve openings. This local precision in positioning and orientation ensures that despite the integrated design, the control precision over valve openings is maintained through carefully designed engagement features between the pin elements and valve mechanisms.
3Adaptability or versatility
If two pin elements are laterally spaced apart on the filter element, then adaptability for different valve openings is improved, but manufacturing complexity increases
Solution Approach 1:
The two pin elements are pre-positioned and laterally spaced apart on the filter element during manufacturing, allowing the filter element to be produced as a complete, ready-to-install component. This preliminary positioning enables direct engagement with multiple valve openings without requiring additional assembly steps or adjustments, thereby maintaining ease of manufacture while achieving adaptability for different valve configurations.
Data Source
AI summary
A filter element for a filter device may include a support structure extending along an axial direction, on which on a circumference side an annular filter medium consisting of filter material may be arranged, and an annular first end disc having a passage opening through which a first pin element may be passed, so that the first pin element may project out of the passage opening along the axial direction, wherein a second pin element may axially project from the first end disc laterally spaced apart from the first pin element.