Extractor Supply Tank Layout for Adjustable Detergent Mixing
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Solution Overview
Problem
Existing extractor cleaning machines face challenges in efficiently mixing and dispensing cleaning solutions, often requiring complex valve and conduit arrangements to achieve desired ratios of water and detergent, which can be cumbersome and prone to cross-mixing issues.
Innovation Solution
A supply tank design with separate chambers for water and detergent, where the second chamber is positioned above the first to prevent cross-mixing, and a valve assembly that allows adjustment of the detergent flow rate to change the cleaning solution ratio, eliminating the need for additional mixing valves within the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate tanks for water and detergent are used with elaborate valve and conduit arrangements to mix at preset ratios, then the desired mixing ratio is achieved, but the device complexity increases and cross-mixing issues occur
Solution Approach 1:
The supply tank is divided into separate compartments for water and detergent, each with independent level sensors and dispensing mechanisms. This segmentation allows precise control of each fluid's flow rate independently, achieving accurate mixing ratios without complex valve arrangements. The compartments are physically separated to prevent cross-mixing during storage and transport.
Solution Approach 2:
The system uses automatic level sensors in each compartment that detect fluid levels and trigger dispensing when needed. The control system automatically adjusts dispensing rates based on real-time level data, eliminating the need for manual valve adjustments or complex preset ratio mechanisms. The system self-regulates to maintain desired mixing ratios.
2Manufacturing precision
If elaborate valve and conduit arrangements are used for mixing, then the desired mixing ratio is achieved, but the ease of operation decreases
Solution Approach 1:
The system automatically monitors fluid levels in each compartment and controls dispensing rates without user intervention. The control system processes sensor data and adjusts valve positions or pump speeds automatically, transforming a complex manual operation into a simple automated process that users can operate with minimal effort.
Solution Approach 2:
Manual valve adjustments and mechanical mixing controls are replaced with electronic level sensors and automated control systems. The sensors continuously monitor fluid levels and send signals to the control system, which automatically regulates dispensing, eliminating the need for users to manually manage complex valve arrangements.
3Reliability
If separate tanks for water and detergent are used, then cross-mixing is prevented, but the device complexity increases
Solution Approach 1:
The supply tank is divided into separate compartments with physical partitions that prevent cross-mixing during storage. Each compartment has its own dispensing mechanism and level sensor, ensuring that water and detergent remain separated until the moment of dispensing. This segmentation provides reliable prevention of cross-mixing while keeping the overall structure integrated and manageable.
4Manufacturing precision
If complex internal mixing systems are included in the machine, then the desired mixing ratio is achieved, but the manufacturing process becomes more complex
Solution Approach 1:
The mixing function is distributed across separate compartments with independent dispensing mechanisms rather than requiring a complex centralized mixing system. Each compartment can be manufactured and tested independently, then assembled into the final unit. This modular approach simplifies the manufacturing process while maintaining precise mixing ratios through controlled dispensing.
Solution Approach 2:
The system uses automated level sensors and control systems to manage mixing ratios, eliminating the need for complex mechanical mixing mechanisms that would be difficult to manufacture and calibrate. The electronic control system can be programmed with desired ratios, simplifying the manufacturing process while maintaining precision.
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 allows for easy adjustment of detergent concentration, prevents cross-mixing, and simplifies the manufacturing process by eliminating the need for complex internal mixing systems, enhancing user flexibility and operational efficiency.
Implementation Method 1
a second chamber (108) for storing a second cleaning fluid. The second chamber (108) is positioned above the first cleaning fluid (92)
Implementation Method 2
A suction source is in fluid communication with the suction nozzle, and the suction source is operable to draw fluid from the surface through the suction nozzle
Data Source
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AI summary
An extractor cleaning machine (20) that includes a base (24) movable along a surface to be cleaned, the extractor cleaning machine (20) including a distribution nozzle and a suction nozzle (56). The extractor (20) further includes a suction source in fluid communication with the suction nozzle (56). A recovery tank (36) is in fluid communication with the suction source and the suction nozzle (56) to receive the fluid drawn through the suction nozzle (56). The extractor (20) further includes a supply tank (44) including a first chamber (72) for storing a first fluid, a second chamber (76) for storing a second fluid, and a third chamber (116) in fluid communication with the first chamber (72) and the second chamber (76) to receive the first and second fluids, the third chamber (116) also in fluid communication with the distribution nozzle for supplying a mixture of the first and second fluids to the distribution nozzle.