Cleaning machine
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Solution Overview
Problem
Existing cleaning machines are heavy, energy-intensive, and large in size due to the use of compressors or hydraulic pumps for nebulizing liquids, which are costly and prone to clogging, and they inefficiently reuse suctioned air.
Innovation Solution
A cleaning machine design that eliminates the need for compressors or hydraulic pumps by using a suction motor to create a pressure increase in the liquid tank, allowing for nebulization through a manual dispenser with a Venturi effect, utilizing the suction motor's waste air for nebulization without filters, and optionally incorporating a hydraulic pump for continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a compressor or hydraulic pump is used for nebulisation, then fine liquid particles can be obtained, but the machine becomes heavy, energy-intensive and occupies large volume
Solution Approach 1:
The invention extracts the nebulisation function from the main cleaning machine body by using a separate, portable dispensing gun that contains the nozzle. The liquid is delivered through a flexible hose to the gun, where nebulisation occurs. This separation removes the need for heavy compressors or pumps in the main machine while still achieving fine particle nebulisation at the point of application.
Solution Approach 2:
The invention introduces a flexible hose as an intermediary element to transport liquid from the main machine to the portable dispensing gun. This allows the nebulisation components to be separated from the main machine body, enabling fine particle generation without requiring the main machine to contain heavy compressors or pumps.
2Manufacturing precision
If a hydraulic pump is used to pressurise liquid to 25-30 bar for nebulisation, then fine particles are obtained, but the pump is heavy, occupies large volume and is energy-intensive
Solution Approach 1:
The invention extracts the high-pressure generation requirement from the main machine by using the kinetic energy of the liquid flow itself and the aerodynamic action of the dispensing gun to create nebulisation. This eliminates the need for energy-intensive hydraulic pumps while still achieving fine particle generation through the interaction of liquid flow with air in the gun's nozzle.
Solution Approach 2:
The invention uses pneumatic principles by allowing ambient air to interact with the liquid stream in the dispensing gun nozzle, creating nebulisation through air-liquid interaction rather than requiring high hydraulic pressure. The liquid flow rate and nozzle design create the necessary aerodynamic conditions for fine particle generation without heavy pumps.
3Manufacturing precision
If small nozzles are used for nebulisation, then fine liquid particles are obtained, but the nozzles become clogged over time by limescale or impurities
Solution Approach 1:
The invention uses a larger nozzle diameter in the dispensing gun that can dynamically adapt to varying liquid flow rates. The nebulisation effect is achieved through the interaction of the liquid jet with ambient air and the gun's internal geometry rather than relying on a tiny fixed orifice. This dynamic approach maintains reliable operation even with impurities in the liquid.
Solution Approach 2:
The invention changes the nebulisation mechanism from relying on a small fixed nozzle orifice to using a larger nozzle with optimized internal geometry that creates turbulence and air-liquid mixing. This parameter change from small-diameter orifice to larger-diameter flow path with controlled turbulence reduces susceptibility to clogging while maintaining fine particle generation.
4Object-affected harmful factors
If the suction motor's waste air is filtered before release, then air quality is improved, but the filtered air is not reused for other purposes
Solution Approach 1:
The invention makes the suction motor's waste air serve multiple functions: it is used for nebulisation in the dispensing gun and then reused for blowing dust out of the container. This multi-functionality is achieved by routing the air through the liquid delivery system for nebulisation and then directing it through the container to perform the blowing function, eliminating waste and improving efficiency.
Solution Approach 2:
The invention recovers the suction motor's waste air that would otherwise be discarded and filters it through the liquid in the container. The filtered air is then reused for blowing dust out of the container. This recovery process eliminates waste and improves overall system efficiency by giving the exhaust air a second useful function.
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
The machine is lightweight, energy-efficient, and compact, capable of producing fine liquid droplets for effective cleaning and sanitizing without the need for expensive pumps or compressors, with adjustable nebulization and virtually unlimited autonomy when a hydraulic pump is included.
Implementation Method 1
uses a suction motor (121) to create a pressure increase in a liquid tank (110)
Implementation Method 2
capable of producing fine liquid droplets for effective cleaning and sanitizing without the need for expensive pumps or compressors, with adjustable nebulization
Implementation Method 3
utilizing the suction motor's waste air for nebulization without filters
Data Source
AI summary
Cleaning machine (100) comprising a nebuliser device (10) for nebulising a liquid product (115), a tank (110) containing said liquid product (115), an intake part (120) comprising at least one waste air vent (125), wherein said nebuliser device (10) comprises a dispenser (20) for dispensing said liquid product (115), a first connecting duct (211) which connects in fluid communication said tank (110) with said dispenser (20), a second duct (225) which connects in air-flow communication said at least one waste air vent (125) of said intake part (120) with said dispenser (20), wherein said dispenser (20) comprises a hollow body (21) comprising an inner cavity (25) connected in air-flow communication with said second duct (225), a dispensing tube (30) connected in fluid communication with said first duct (211), wherein a space is provided forming a nebulisation area (40) arranged at a mouth of an outlet pass-through opening of said dispensing tube (30) and at a mouth of a pass-through outlet opening of said inner cavity (25).