Cyclone Bin Assembly Layout to Reduce Dirt Re-Entrapment
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Solution Overview
Problem
Current surface cleaning apparatuses, such as vacuum cleaners, have limitations in efficiently disentraining particulate matter from airflow due to re-entrainment issues in cyclonic cleaning stages, leading to incomplete particle collection.
Innovation Solution
A cyclone bin assembly with a dirt collection chamber divided into two portions, where the cyclone chamber's dirt outlet is asymmetrically positioned to direct airflow, and a diverter wall is used to separate the airflow and reduce re-entrainment by creating a wind shadow for particulate matter to settle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single dirt collection chamber is used in cyclonic cleaning stages, then the structure is simple, but particulate matter re-entrainment occurs leading to incomplete particle collection
Solution Approach 1:
The dirt collection chamber is divided into two separate portions: a first portion that receives airflow directly from the cyclone chamber and a second portion that receives airflow from the first portion. This segmentation allows particulate matter to settle in the first portion without being re-entrained into the cyclone chamber, while the second portion captures finer particles. The asymmetric arrangement of the dirt outlet directs more airflow into the first portion, optimizing the separation efficiency and preventing re-entrainment of collected particles.
2Productivity
If airflow is directed uniformly to both portions of the dirt collection chamber, then the airflow distribution is balanced, but particulate matter settlement is reduced
Solution Approach 1:
The dirt outlet is asymmetrically arranged relative to the first and second portions of the dirt collection chamber, directing more airflow into the first portion than the second portion. This asymmetric configuration optimizes particulate matter settlement by creating a dominant airflow path through the first portion where particles can settle effectively. The asymmetric design prevents uniform airflow distribution that would cause re-entrainment, while still providing sufficient airflow to the second portion for capturing finer particles.
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 increases the percentage of particulate matter disentrained from the airflow stream, ensuring more efficient particle collection by directing airflow and particulate matter deposition effectively between the two portions of the dirt collection chamber.
Implementation Method 1
The rotation of the air in the cyclone results in some of the particulate matter in the airflow stream being disentrained from the airflow stream
Implementation Method 2
The rotation of the air in the cyclone results in some of the particulate matter in the airflow stream being disentrained from the airflow stream
Implementation Method 3
The divider wall may direct air away from the surface on which particulate matter has accumulates and thereby provide a wind shadow in which light particulate matter may settle
Implementation Method 4
The air may then travel to a second or downstream portion of the dirt collection chamber. The air circulates within the second portion wherein fine particulate matter may settle out
Data Source
AI summary
A cyclone bin assembly comprises a cyclone chamber having an air inlet, an air outlet, a dirt outlet and first and second opposed ends. The cyclone bin assembly may comprise a dirt collection chamber in communication with the dirt outlet. The dirt bin may surround at least a portion of the cyclone chamber and comprising first and second portions. The first and second portions may comprise discrete chambers that are separated from each other by a passage extending between the dirt outlet and a wall of the dirt collection chamber. The dirt outlet may have an angular extent around the cyclone chamber and a larger portion of the angular extent of the slot may face the first portion.