Cyclone Assembly Outlet Positioning for Better Dirt Separation

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Solution Overview

Problem

Cyclonic separators in vacuum cleaners face inefficiencies in dirt collection due to the positioning of the separated material outlet, which affects the separation efficiency and ease of dirt collection.

Innovation Solution

Positioning the separated material outlet between 90 to 330 degrees, preferably 180 to 300 degrees, around the cyclone casing from the fluid inlet, with an inwardly directed transition member that extends between the sidewall and end wall, and placing the dirt outlet within this transition member, allowing for enhanced separation efficiency and improved dirt collection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the separated material outlet is positioned at conventional locations in the cyclone separator, then the structure is simple, but the separation efficiency is reduced

Engineering Contradiction:
Improveseparation efficiencyVSAvoidoutlet positioning complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by optimizing the angular position of the separated material outlet to a specific range (90-330 degrees from the fluid inlet, preferably 180-300 degrees, most preferably about 270 degrees). This angular parameter optimization enhances the separation efficiency by improving the flow dynamics and centrifugal force distribution within the cyclone chamber, allowing more effective separation of particulate matter from the fluid stream.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces a new dimensional consideration by positioning the separated material outlet on the cyclone casing at a specific angular distance from the fluid inlet, rather than at conventional locations. This spatial repositioning in the angular dimension around the cyclone casing creates optimized flow patterns that enhance separation efficiency while maintaining structural simplicity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If the separated material outlet is positioned to maximize separation efficiency, then dirt collection is improved, but the device complexity increases

Engineering Contradiction:
Improvedirt collection efficiencyVSAvoidoutlet configuration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent optimizes the angular position parameter of the separated material outlet (positioned 90-330 degrees from the fluid inlet, preferably 180-300 degrees, most preferably about 270 degrees) to maximize dirt collection efficiency. This parameter optimization enhances productivity by improving the ejection of separated particulate matter from the cyclone chamber while avoiding complex additional structures.

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If multiple outlets are provided in the cyclone separator, then dirt collection capacity is increased, but the device complexity increases

Engineering Contradiction:
Improvedirt collection capacityVSAvoidoutlet structure complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent determines that providing only one separated material outlet at the optimized angular position (90-330 degrees from the fluid inlet, preferably 180-300 degrees, most preferably about 270 degrees) is sufficient to achieve effective dirt collection. This single outlet configuration, positioned at the optimal angle, maintains adequate dirt collection capacity while avoiding the increased complexity that would result from multiple outlets.

Inventive Principle:
Principle #35Parameter changes

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 enhances the separation efficiency of the cyclone separator by optimizing the flow direction and positioning of the dirt outlet, leading to improved dirt collection and operational efficiency in vacuum cleaners.

Implementation Method 1

a cyclone separator having a cyclone chamber defined by a cyclone casing and having a fluid inlet at an upper end of the cyclone chamber and a fluid outlet at an upper end of the cyclone chamber

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 2

As the fluid travels through the cyclone chamber, it will rotate and heavier material (e.g. particulate matter) will exit the cyclone chamber via the separated material outlet

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS7941895B2Configuration of a cyclone assembly and surface cleaning apparatus having same
Publication Date: 2011.05.17 OMACHRON INTELLECTUAL PROPERTY INC
  • US7941895B2 patent drawing
  • US7941895B2 patent drawing
  • US7941895B2 patent drawing

AI summary

A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. The first end is provided with a fluid inlet and the second end is provided with a dirt outlet. The dirt outlet provides a lateral outlet to a dirt collection chamber in communication with the cyclone chamber via the dirt outlet. The dirt outlet is positioned from about 90 to about 330° around the cyclone casing in a flow direction from the fluid inlet.