Filter Element With Segmented Outflow Channel For Controlled Drainage
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Solution Overview
Problem
Existing liquid filtration systems, such as fuel and oil filters, face challenges in efficiently draining filtered liquids and water from the filtration medium without contaminating the clean side or requiring complex servicing procedures.
Innovation Solution
A filter element with a hollow-cylindrical filter medium body and end disks featuring an outflow channel that connects to a drainage device, allowing controlled drainage of filtered liquids from a liquid collecting space, either at the raw or clean side, without contact with the filter housing's bottom space, and incorporating a water fill level sensor for automated drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a drainage device is integrated into the end disk with a central cutout and outflow channel, then controlled drainage of filtered liquid is enabled without contaminating the clean side, but the device complexity increases
Solution Approach 1:
The drainage system is segmented into distinct functional zones: the outflow channel extends from the radially outward wall surface to the central cutout in the end disk, creating separate flow paths for filtered liquid drainage while preventing backflow contamination of the clean side. This segmentation allows independent control of drainage functions.
Solution Approach 2:
The drainage device acts as an intermediary component between the liquid collecting space and the external environment. It provides controlled access for drainage while maintaining the integrity of the clean side, serving as a mediator that enables liquid removal without compromising filtration quality.
2Productivity
If the outflow channel extends from the radially outward wall surface to the central cutout in the end disk, then efficient liquid drainage is achieved, but the manufacturing complexity increases
Solution Approach 1:
The outflow channel is merged with the end disk structure, forming an integrated component. The channel extends from the radially outward wall surface directly to the central cutout, creating a continuous flow path that improves drainage efficiency while being manufactured as a single piece to reduce assembly complexity.
3Adaptability or versatility
If the drainage device allows controlled outflow through the outflow channel, then selective drainage of filtered liquid is enabled, but the device complexity increases
Solution Approach 1:
The drainage device incorporates dynamic control capability, allowing the outflow channel to be selectively opened or closed. This enables adaptable drainage operations where filtered liquid can be removed on demand while maintaining system integrity during normal operation, providing versatility in drainage timing and volume.
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 targeted and efficient drainage of filtered liquids and water, simplifying servicing by allowing simultaneous drainage of both liquids and water without contaminating the clean side, particularly beneficial for large-volume filters in trucks and marine applications.
Implementation Method 1
the outflow through the outflow channel can be controlled by a drainage device, wherein the outflow channel extends from a radially outwardly positioned wall surface of the filter medium body to a central cutout in the end disk
Data Source
AI summary
A filter element for liquid filtration has a hollow-cylindrical filter medium body and an end disk covering an end face of the filter medium body. A central cutout axially penetrates the end disk. An outflow channel for liquid to be filtered or filtered liquid is arranged at the end disk and connects to a liquid collecting space. The outflow channel extends from a radially outward wall surface of the filter medium body to the central cutout of the end disk. The outflow channel is controlled by a drainage device. A filter device with a filter housing provided with such a filter element has a drainage device that controls the outflow channel. A filter device with a drainage device having a first drainage position for draining only water and a second drainage position draining water from a water collecting space and liquid from a liquid collecting space is provided.