Flat Vacuum Cleaner Bag Diffuser for Anti-Clog Dust Distribution
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Solution Overview
Problem
Existing vacuum cleaner filter bags suffer from inadequate dust distribution and premature clogging due to the small dimensioning of deflection devices, leading to reduced dust storage capacity and service life.
Innovation Solution
A flat bag design featuring an intermediate plane with a diffuser made of material strips or fabrics having elongated, meandering flow openings that connect to the bag walls, creating turbulence and improving dust distribution, thereby preventing blockages and extending the bag's service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a small deflection device is mounted directly under the inlet opening, then the air flow is directed in the region of the inlet opening, but the bag becomes clogged by dust accumulated between the inlet opening and the deflection device, reducing dust storage capacity and service life
Solution Approach 1:
The diffuser is divided into multiple individual strips or fabric pieces with flow openings, arranged in an intermediate plane rather than a single solid deflection device. This segmentation allows air to pass through while preventing dust accumulation and blockages, resolving the contradiction between flow direction control and dust storage capacity
Solution Approach 2:
An intermediate plane is introduced between the inlet opening and the bag interior, containing the diffuser strips. This intermediary structure directs air flow while preventing direct contact between dust and the deflection device, eliminating clogging issues and maintaining both flow control and dust storage capacity
2Device complexity
If the deflection device surface covers a small area (less than 10% of bag surface), then the structure remains simple, but inadequate dust distribution occurs leading to premature clogging
Solution Approach 1:
Instead of a large solid deflection device, multiple local diffuser strips or fabric pieces are distributed across the intermediate plane. Each strip provides localized flow distribution, achieving adequate dust distribution throughout the bag while maintaining structural simplicity and preventing premature clogging
Solution Approach 2:
The diffuser is constructed from fabric pieces with flow openings or strips with gaps, creating a porous structure that allows air passage while distributing dust particles effectively. This porous design prevents clogging and extends service life without increasing device complexity
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 design significantly enhances dust storage capacity and service life by preventing clogging at the air intake and ensuring efficient airflow, resulting in improved filter bag performance.
Implementation Method 1
The oblong shaped flow openings are meandering and / or zigzag-shaped... The diffusers made of material strip or flow openings are formed surface blinds result in a turbulence of the inflowing, contained with dirt and / or dust particles air
Data Source
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AI summary
The present invention relates to a flat vacuum cleaner bag comprising at least one diffuser forming an intermediate level, made of material strips and/or planar structures with elongated flow openings. Such flat bags are characterized by excellent dust retention capacity and extended service life.