Filter Element Dual-Chamber Partition for Pre-Fill Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filter systems fail to prevent unfiltered fluid from entering the fluid system during the installation of a new or refurbished filter element, potentially introducing damaging particles into the system.
Innovation Solution
A filter element with a tubular member featuring a partition that separates two chambers, where fluid must pass through both chambers and filter media to flow from the inlet to the outlet, and a cover portion that prevents unfiltered fluid from entering the second chamber without first passing through the first chamber, ensuring filtration before fluid enters the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter element is replaced or refurbished, then filtration effectiveness is restored, but unfiltered fluid containing particles may enter the fluid system during prefilling
Solution Approach 1:
The filter element is divided into two separate chambers (first chamber and second chamber) with distinct filtration paths. The partition wall with selective apertures separates these chambers, ensuring that fluid must pass through filter media in both chambers sequentially. This segmentation prevents unfiltered fluid from bypassing the filtration process during prefilling operations.
Solution Approach 2:
The cover portion is configured to prevent unfiltered fluid from entering the second chamber before it has passed through the first chamber's filtration system. This preliminary filtration action ensures that even during prefilling when the system is being prepared, particles are removed from fluid before it can contaminate the broader fluid system.
2Ease of operation
If prefilling is performed to prevent air pockets, then system operation is improved, but potentially damaging particles may be introduced into the fluid system
Solution Approach 1:
The first chamber acts as an intermediary filtration stage between the prefilling operation and the second chamber. Fluid intended for prefilling must first pass through the filter media in the first chamber, which removes particles while allowing the prefilling function to proceed. This intermediary filtration protects the rest of the system from particle contamination during the prefilling process.
3Device complexity
If a simple end cap is used for fluid separation, then device complexity is reduced, but unfiltered fluid can still enter the fluid system
Solution Approach 1:
The partition wall with selective apertures is nested within the tubular member structure, creating integrated first and second chambers without requiring separate external components. The filter media are positioned within these chambers in a nested arrangement, achieving dual-chamber filtration with minimal additional structural complexity while preventing unfiltered fluid from reaching the fluid system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration ensures that fluid entering the system is filtered twice, preventing potentially damaging particles from entering the fluid system, thus maintaining filtration effectiveness and preventing air pockets during filter element replacement.
Implementation Method 1
a partition at least partially defining a first chamber and at least partially defining a second chamber, with the partition extending longitudinally in the tubular member and being configured to prevent flow communication between the first chamber and the second chamber within the tubular member
Implementation Method 2
a filter medium comprising a first portion and a second portion, wherein the first portion is located exterior and adjacent to the at least one outlet aperture and the second portion is located exterior and adjacent to the at least one inlet aperture
Implementation Method 3
a cover portion at the end portion of the tubular member, with the cover portion extending from the partition. The cover portion may be configured to at least partially cover a longitudinal end of the second chamber
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A filter element (16) may include a tubular member (46), and tubular member may include a partition (54) at least partially defining first and second chambers (56, 58). The tubular member may further include an end portion (60) at least partially defining an inlet port (62) configured to provide flow communication into the first chamber, and at least partially defining an outlet port (64) configured to provide flow communication from the second chamber. The tubular member may further include a cover portion (106) at the end portion of the tubular member, with the cover portion extending from the partition. The cover portion may be configured to at least partially cover a longitudinal end of the second chamber. The filter element may further include a filter medium (48) associated with at least one outlet aperture and the at least one inlet aperture of the tubular member.