Flexible Flow Control Element for Compact Transmission Filters
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Solution Overview
Problem
Existing flow control elements for fluid filtration, such as those in suction filters for transmissions, occupy a large area, limiting the amount of filter media that can be used and affecting filtration performance and working lifetime.
Innovation Solution
A flow control element with a body that moves between different positions in response to fluid flow, utilizing a hinge and flex regulating elements to control fluid flow, allowing for a non-linear response to pressure differentials and customizable performance, while maintaining a small footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional hinge valve or flow control elements are used to regulate fluid flow, then flow regulation function is achieved, but the area occupied within the filter apparatus increases
Solution Approach 1:
The flow control element utilizes a flexible membrane that dynamically changes its configuration in response to pressure differentials across the filter media. The membrane transitions between a first configuration (blocking flow to second media) and a second configuration (allowing flow), enabling automatic flow regulation without requiring large mechanical hinge valve components.
Solution Approach 2:
The invention employs a flexible membrane as the core flow control mechanism. This thin film element can bend and deform to control fluid flow paths, replacing traditional rigid hinge valve structures. The membrane's ability to flex allows it to regulate flow between different media types while occupying minimal space within the filter apparatus.
2Ease of operation
If traditional flow control elements are used, then flow regulation is achieved, but the amount of filter media that can be used is reduced
Solution Approach 1:
The dynamic membrane configuration allows the filter to adapt flow distribution between first and second media types based on operating conditions. This enables more efficient utilization of available filter media quantity by directing fluid flow optimally through whichever media type is most effective under current temperature and viscosity conditions.
Solution Approach 2:
The flexible membrane serves multiple functions: it acts as a flow control element, a pressure-sensing element, and a flow-distribution element. This multi-functionality eliminates the need for separate dedicated components, maximizing the space available for filter media within the apparatus.
3Extent of automation
If traditional hinge valve design is used, then passive flow regulation based on pressure drop is achieved, but the device occupies relatively large area
Solution Approach 1:
The flexible membrane automatically regulates flow based on the pressure differential created by the filter operation itself. When pressure drop across the first media exceeds a threshold, the membrane naturally deflects to redirect flow to the second media, and vice versa. This self-regulating mechanism eliminates the need for external control systems or large mechanical valve assemblies.
Solution Approach 2:
The thin flexible membrane replaces the bulky hinge valve mechanism while maintaining passive automated flow regulation. The membrane's flexibility allows it to respond to pressure changes and control flow distribution without requiring the mechanical linkages, springs, and housings that characterize traditional hinge valve designs.
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
Enables increased use of filter media, improving filtration performance and extending the working lifetime of fluid filters by efficiently regulating fluid flow without occupying excessive space.
Implementation Method 1
the flow control element moves between a first position, a second position, and a third position in response to a fluid flow (or, more particularly, a differential pressure across the FCE)
Implementation Method 2
In the second position, at least a portion of the upper region is deformed towards the back side of the FCE. In the third position, at least a portion of the intermediate region is deformed toward the back side of the FCE
Data Source
AI summary
Flow control elements (FCEs) and fluid apparatus including the same are described. In embodiments the flow control elements (FCE) include a body that includes a front side, a back side, a left side, and a right side. The body further includes a base region, an upper region, and an intermediate region between the base region and the upper region. The FCE is configured to move in response to a fluid flow (or, more specifically, a pressure differential across the FCE) to regulate a flow of fluid past the FCE. In embodiments the FCE is included in a fluid apparatus for a vehicle, such as but not limited to a suction filter for a vehicle transmission.