Venting Unit With Semi-Permeable Membrane And Filter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing venting systems for machinery spaces fail to effectively prevent the escape of fine particles and oil droplets, which can be harmful to health and cause electrical conductivity issues, and are not adequately protected against water ingress, leading to potential short circuits in electro-mechanical systems.
Innovation Solution
A venting unit with a support element, a semi-permeable membrane, and a filter element, where the filter element is placed between the semi-permeable membrane and the machinery space to prevent fine particles and oil droplets from passing through, while the semi-permeable membrane allows air to pass while maintaining water tightness, and the filter element is designed to protect the membrane from aerosols and oil droplets, ensuring reliable venting and pressure compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a semi-permeable membrane is used for venting, then water tightness is improved, but fine particles and oil droplets can still pass through and block the membrane
Solution Approach 1:
The venting system is segmented into two distinct functional layers: a semi-permeable membrane for water tightness and a filter element for particle filtration. This segmentation allows each component to specialize in one function, resolving the contradiction between water tightness and particle blocking.
Solution Approach 2:
A filter element is introduced as an intermediary component between the machinery space and the semi-permeable membrane. This intermediary captures fine particles and oil droplets before they reach the membrane, preventing blockages while maintaining the membrane's water tightness function.
2Object-affected harmful factors
If the machinery space is sealed to prevent particle escape, then health safety is improved, but pressure compensation becomes difficult
Solution Approach 1:
Both the semi-permeable membrane and filter element utilize porous structures that allow gas permeability for pressure compensation while physically blocking particles and liquid. The porous nature enables air passage while maintaining sealing against harmful substances.
3Duration of action of stationary object
If a filter element is added to protect the membrane, then membrane durability is improved, but device complexity increases
Solution Approach 1:
The filter element and semi-permeable membrane are merged into a single integrated venting unit assembly. This combining approach protects the membrane while avoiding the complexity of separate replacement systems, as both components work together in one unified structure.
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
The venting unit effectively prevents the escape of harmful particles and oil droplets, reduces the risk of electrical conductivity issues, and protects the mechanical system from water ingress, ensuring reliable operation and extended membrane functionality by minimizing blockages.
Implementation Method 1
a semi-permeable membrane covering the passageway and being arranged at the support element in a fluid tight manner
Implementation Method 2
The filter element includes a depth and/or surface filtration medium
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A venting unit (100) for venting a machinery space includes a support element (10) with a front side (36) and a rear side (37) that are related to an axial direction (42), and mounting elements (12) and a sealing element (14) for being mounted with the rear side (37) in a substantially fluid tight manner to an opening of the machinery space, the support element (10) having a fluid permeable passageway (16) for venting, and the sealing element (14) being arranged surrounding the passageway (16). The venting unit (100) further includes a semi-permeable membrane (40) covering the passageway (16) and being arranged at the support element (10) in a fluid tight manner, and a filter element (50) being arranged at the support element (10), within the passageway (16), and between the semi-permeable membrane (20) and the machinery space. The filter element (50) includes a depth and/or surface filtration medium (52).