Dual-Mode Surface Cleaning Apparatus for Vacuum and Liquid Extraction
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Solution Overview
Problem
Existing surface cleaning apparatuses require separate machines for vacuuming and extracting cleaning solutions, as they are not designed to handle both dry and wet cleaning modes efficiently, leading to inefficiencies and increased storage needs.
Innovation Solution
A surface cleaning apparatus that operates in both vacuum and extractor modes, featuring a liquid distribution system, a momentum separator for liquids, and a cyclone separator for solids, allowing it to vacuum debris before applying cleaning solutions and then extract them, with a compact design that reduces energy consumption and storage requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate machines are used for vacuuming and extracting cleaning solutions, then each machine can be optimized for its specific function, but the user needs to store and manage multiple machines
Solution Approach 1:
The patent combines a vacuum cleaner and extractor into a single integrated apparatus. The vacuuming system includes a suction motor and cyclone separator for dry debris, while the extracting system includes a liquid distribution system with spray nozzles and a momentum separator for wet cleaning. Both systems share common components like the suction motor, housing, and collection chambers, merging two separate machines into one versatile device.
Solution Approach 2:
The apparatus is designed to perform multiple cleaning functions: dry vacuuming of debris, wet extraction of cleaning solutions from carpets, and combination modes. The system can operate in vacuum mode using the cyclone separator, in extract mode using the momentum separator and liquid distribution system, or in combination modes where both systems work together, providing universal cleaning capability for different surface types and contamination levels.
2Device complexity
If a single apparatus handles both dry and wet cleaning modes, then storage space is reduced, but the energy consumption increases due to liquid handling requirements
Solution Approach 1:
The separation system is segmented into two distinct stages: a cyclone separator for dry particulate matter and a momentum separator for liquid extraction. The cyclone separator handles dry debris with high efficiency, while the momentum separator specifically targets liquid-carrying air streams. This segmentation allows each separator to be optimized for its specific function, reducing the energy required for each separation task compared to a single unified separator.
Solution Approach 2:
The momentum separator acts as an intermediary stage between the cyclone separator and the collection chamber. It receives air streams containing liquid from the cyclone separator and performs intermediate liquid removal before the air enters the final collection chamber. This intermediary momentum separator reduces the energy burden on the main suction motor by handling liquid separation in a dedicated stage, allowing more efficient overall system operation.
3Device complexity
If the liquid treatment stage is positioned at a higher elevation, then the overall design may be simplified, but substantially more energy is required to draw liquid upward
Solution Approach 1:
The apparatus utilizes vertical stacking of separation stages in the upright configuration, with the cyclone separator positioned above the momentum separator. This vertical arrangement in the third dimension (height) allows efficient use of space while the momentum separator's lower position leverages gravity to reduce the energy required for liquid removal. The design transitions from a horizontal to vertical layout to optimize both space utilization and energy efficiency.
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
Enables a single apparatus to handle both dry and wet cleaning tasks, reducing the need for multiple machines, lowering energy consumption, and minimizing storage space while maintaining effective debris and solution removal.
Implementation Method 1
The first treatment stage may be designed to remove liquid from an air stream (e.g., a momentum separator)
Implementation Method 2
The second treatment stage may be designed to remove solid particulate matter from the air stream (e.g., one or more cyclones in parallel)
Data Source
AI summary
A surface cleaning apparatus such as an extractor has a fluid flow path extending from a dirty fluid inlet head to a clean air outlet. The fluid flow path upstream of the separation stage comprises a removable portion.