Nanoaerosol Generation Device with Particle Deflection and Separation
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Solution Overview
Problem
Existing methods for generating aerosols produce a broad size distribution of liquid particles, including larger particles that are not effectively used, leading to unnecessary fluid loss, especially when the fluid contains active ingredients.
Innovation Solution
A method and device that deflects atomized fluid particles from the nozzle exit direction to separate larger particles from smaller ones, returning larger particles to the fluid reservoir while releasing smaller particles into the environment, ensuring a nanoaerosol with particles less than 1,000 nanometers in diameter is produced, thereby minimizing fluid loss and optimizing particle size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional atomization methods are used to generate aerosols, then aerosol generation is achieved, but the particle size distribution is broad including larger particles that are not effectively used, leading to fluid loss
Solution Approach 1:
The patent segments the aerosol generation process into distinct functional zones: a first region for initial atomization and a second region for particle separation. This spatial segmentation allows different physical processes to occur in optimized conditions, enabling precise control over final particle size distribution while maximizing fluid utilization efficiency
Solution Approach 2:
The patent introduces an intermediary separation mechanism between the atomization source and the delivery system. This intermediary zone acts as a mediator that filters and sorts particles by size, allowing only optimally-sized droplets to proceed to the target area, thereby preventing waste of fluid contained in improperly sized particles
2Productivity
If high pressure is applied to atomize fluid through a nozzle, then atomization efficiency is improved, but larger particles are still produced along with smaller ones, causing unnecessary fluid loss
Solution Approach 1:
The patent establishes a continuous aerosol generation and separation process where atomization occurs continuously in the first region and particle separation occurs continuously in the second region. This continuous action ensures that all fluid entering the system undergoes both atomization and size-based filtration, maximizing the conversion of input fluid into usable nanoaerosol and minimizing waste
Solution Approach 2:
The patent replaces purely mechanical high-pressure atomization with a hybrid system that combines mechanical atomization with physical separation based on particle dynamics. Instead of relying solely on pressure to control particle size, the system uses the natural behavior of particles in flow to separate them by size, allowing high productivity to be maintained while achieving precise particle size control
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 solution effectively generates a nanoaerosol with a desired size range, reducing fluid loss and ensuring that active ingredients are efficiently used, with adjustable particle size achieved through rheological properties and device parameters.
Implementation Method 1
at least one fluid to be atomized is atomized in a nozzle through a nozzle opening of the nozzle
Implementation Method 2
the fluid to be atomized is arranged in a cartridge which has at least one outlet opening for atomizing the fluid and a movable piston which can be moved by a drive device. The movable piston exerts such pressure on the fluid in the cartridge that the fluid is discharged through the outlet opening in the form of a finely divided liquid mist at the required flow rate of 50-300 m/s
Implementation Method 3
which deflects the atomized fluid particles from the original exit direction, so that the larger fluid particles can be separated from the smaller fluid particles
Implementation Method 4
the larger fluid particles from smaller fluid particles separates at least partially, returns the separated larger fluid particles to the fluid to be atomized
Data Source
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AI summary
The invention relates to a method and a device for generating a nanoaerosol, wherein at least one fluid to be atomized is atomized in a nozzle via a nozzle opening of the nozzle along an outlet direction in the form of fluid particles, the atomized fluid particles are diverted from the outlet direction and larger fluid particles are at least partially separated from smaller fluid particles, the separated larger fluid particles are returned to the fluid to be atomized and the smaller fluid particles are emitted to the environment. A cartridge in which the nozzle and the fluid to be atomized are arranged is used. According to the invention, a stream of a carrier gas is generated in the nozzle and at least one fluid to be atomized is brought into contact with the carrier gas.