Cleaning device generating two suction flows
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Solution Overview
Problem
Existing cleaning devices, such as vacuum cleaners and self-propelled robots, are limited in their ability to efficiently separate and collect both dry and wet particles from surfaces, as they typically rely on a single suction flow, which may not effectively manage the kinetic energy for simultaneous dry and wet particle removal.
Innovation Solution
The device generates a second suction flow by extracting kinetic energy from the pressure flow using a hydromechanical device, such as a Venturi nozzle arrangement, allowing for separate collection of dry and wet particles through distinct suction lines and containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single suction flow is used for particle removal, then the device structure remains simple, but the ability to efficiently separate and collect both dry and wet particles is limited
Solution Approach 1:
The single air flow is segmented into two separate suction flows through a flow splitter, enabling independent collection of dry and wet particles while maintaining a relatively simple overall device structure. The flow splitter divides the air flow into a first suction flow for dry particles and a second suction flow for wet particles.
Solution Approach 2:
The single air flow generator performs multiple functions by generating both dry particle removal and wet particle removal capabilities through the flow splitter. This multi-functionality allows one device to handle both dry and wet cleaning tasks without requiring separate air flow generators.
2Adaptability or versatility
If kinetic energy is extracted from pressure flow to generate a second suction flow, then cleaning versatility is enhanced, but energy loss increases
Solution Approach 1:
Kinetic energy is extracted from the pressure flow using a hydromechanical device to generate the second suction flow. This extraction enables wet particle removal capability while utilizing the existing pressure flow's kinetic energy, converting it into useful suction force for the second cleaning function.
Solution Approach 2:
A hydromechanical device is employed to convert the kinetic energy of the pressure flow into a usable suction flow. This pneumatic-hydraulic conversion mechanism efficiently generates the second suction flow for wet particle removal without requiring additional mechanical energy input.
3Productivity
If a mechanical air flow generator is used, then reliable particle removal is achieved, but the device cannot simultaneously optimize for both dry and wet particle transport
Solution Approach 1:
The air flow from the mechanical air flow generator is segmented into two specialized flows: one optimized for dry particle transport and another for wet particle removal. This segmentation allows each flow to be optimized for its specific particle type while maintaining high productivity.
Solution Approach 2:
Different regions of the air flow are given different qualities through the flow splitter - one stream is directed toward dry particle collection with appropriate flow characteristics, while the other is directed toward wet particle removal with suitable kinetic energy properties.
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 approach enables efficient separation and collection of both dry and wet particles using a single mechanical air flow generator, enhancing the device's versatility and cleaning capabilities by optimizing the use of kinetic energy for improved particle transport and filtration.
Implementation Method 1
a nozzle arrangement and particularly preferably a Venturi nozzle arrangement
Data Source
AI summary
A cleaning device includes an air flow generator for generating an air flow, which encompasses a first suction flow through a first suction line, which is arranged in flow direction of the air flow upstream of the air flow generator and which leads into a first collecting container, and a pressure flow in a pressure line, which is arranged in flow direction of the air flow downstream from the air flow generator. Using a Venturi nozzle, the air flow generates a second suction flow, which is separated from the first suction flow, through a second suction line, which leads into a second collecting container.