Filter Device Lid Segmentation for Air-Liquid Separation
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Solution Overview
Problem
Existing filter devices fail to effectively reduce the amount of air that flows out with the liquid during sudden increases in flow rate, leading to potential defects such as engine knocking and engine stall.
Innovation Solution
The filter device incorporates an impeding member and a lid member with an external flow path to prevent sudden flow of filtered liquid, allowing air to be discharged externally, and includes a baffle plate to create a vortex and prevent hydraulic oil from passing through, thereby reducing air flow with the liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter allows free flow of liquid through the filter element, then the filtration efficiency is maintained, but air cannot be effectively discharged when flow rate suddenly increases
Solution Approach 1:
The filter device is divided into separate functional zones: a first discharge path for air discharge and a second discharge path for liquid discharge. The lid member is segmented to provide distinct openings and pathways for air and liquid to exit through different routes, preventing air from being carried out with the liquid flow.
Solution Approach 2:
The lid member acts as an intermediary component between the filter element interior and the exterior environment. It provides controlled discharge paths that mediate the exit of air and liquid, allowing air to be released through the first discharge path while liquid flows through the second discharge path, thus preventing air-liquid mixing at the discharge point.
2Device complexity
If the filter case is designed for simple liquid filtration, then the structure remains simple, but air accumulation and discharge become problematic during sudden flow rate increases
Solution Approach 1:
The lid member serves multiple functions: it seals the filter case, provides structural support, and creates discharge paths for both air and liquid. By integrating these functions into a single component, the design achieves air discharge capability without significantly increasing overall structural complexity.
Solution Approach 2:
The discharge paths are arranged in different spatial dimensions and orientations. The first discharge path for air and the second discharge path for liquid are positioned at different locations and angles on the lid member, utilizing spatial separation to prevent air-liquid mixing while maintaining a compact filter case design.
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 effectively reduces the amount of air that flows out with the filtered liquid during sudden increases in flow rate, preventing defects and allowing for efficient air removal from hydraulic oil before filtration.
Implementation Method 1
an impeding member that impedes a flow of the fluid and is provided in a hollow portion of the filter element or the outflow portion
Implementation Method 2
a lid member that covers an upper end of the filter case and includes an external flow path that communicates a hollow portion of the filter element and an exterior of the filter case
Implementation Method 3
the lid member that covers the upper end of the filter case includes the external flow path that communicates the hollow portion of the filter element to the exterior of the filter case. As a result, the flow of the liquid is impeded, making it possible to discharge the air accumulated in the interior of the filter element outside the filter case via the external flow path
Data Source
AI summary
A filter device is provided with an impeding member that impedes a flow of a fluid in a hollow portion of a filter element or a hollow portion of an outflow portion that communicates the hollow portion of the filter element and an exterior of a filter case. Further, a lid member that covers an upper end of the filter case includes an external flow path that communicates the hollow portion of the filter element to the exterior of the filter case.