Suction apparatus and method for cleaning a filter
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Solution Overview
Problem
Existing suction apparatuses face challenges in effectively cleaning filters, particularly when using lower-power suction fans, as they often result in reduced suction performance and inefficient filter cleaning due to inadequate flushing air flow.
Innovation Solution
The suction apparatus incorporates a filter cleaning device with a valve having a movable closing body and a counter device, featuring offset contact regions that establish a seal in the closed position and increase the air flow area upon opening, allowing for a high volume of flushing air to be applied to the filter quickly, even with lower-power suction fans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a lower-power suction fan is used, then energy consumption is reduced, but filter cleaning effectiveness deteriorates due to inadequate flushing air flow
Solution Approach 1:
The valve closing body is designed with offset contact regions that create dynamic sealing and opening behavior. When the valve opens, the offset contact regions allow rapid expansion of the air flow area, enabling quick delivery of high volume flushing air to the filter even with lower-power suction fans, thus maintaining filter cleaning effectiveness while using less energy
Solution Approach 2:
The offset contact regions are positioned at different heights, creating a three-dimensional sealing arrangement. When the valve opens, this spatial arrangement allows air to flow through multiple paths simultaneously, rapidly increasing the effective air flow area and delivering high volume flushing air to the filter surface, resolving the contradiction between low power consumption and effective filter cleaning
2Quantity of substance
If a valve with offset contact regions is used, then flushing air flow volume is increased quickly, but device complexity increases
Solution Approach 1:
The valve closing body is segmented into multiple contact regions offset from each other in height. This segmentation allows air to flow through multiple separate paths when the valve opens, rapidly increasing the total flushing air flow area and volume without requiring a completely complex valve structure, as each contact region segment independently contributes to the flow area expansion
3Productivity
If flushing air flow is increased for effective filter cleaning, then suction performance is improved, but noise level increases
Solution Approach 1:
The offset contact regions create a dynamic opening sequence that allows flushing air flow to increase gradually and smoothly rather than abruptly. This dynamic control enables effective filter cleaning with high suction performance while minimizing sudden air flow changes that generate noise, thus reducing the harmful noise effect
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 design enables optimized filter cleaning by providing a large volume flow of flushing air within a short time, maintaining sustained suction performance and reducing noise, while being effective even with battery-operated suction apparatuses.
Implementation Method 1
a suction unit for creating a suction flow
Implementation Method 2
both the first contact region and the second contact region are in contact against the counter device
Implementation Method 3
in the open position of the at least one valve, both the first contact region and the second contact region are in spaced-apart relation to the counter device
Data Source
AI summary
A suction apparatus is provided including a suction unit for creating a suction flow, at least one filter and a filter cleaning device, wherein the filter cleaning device includes at least one valve having a closing body and a counter device, and wherein in an open position of the valve the filter has a filter cleaning flow applied thereto and wherein in a closed position of the valve the filter cleaning flow is or becomes inactive, wherein the closing body has a first contact region and a second contact region, wherein, in the closed position of the valve, both the first contact region and the second contact region are in contact against the counter device, and wherein in the open position of the valve, a flushing air flow flows past both the first contact region and the second contact region to the filter.