Multi-Ejector Vacuum Generator Nozzle Geometry for Lower Air Consumption
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Solution Overview
Problem
Existing multi-ejector vacuum pumps suffer from inefficiencies due to inadequate consideration of nozzle geometry and dimensions, leading to lower performance compared to the present invention.
Innovation Solution
A multi-ejector vacuum generator with at least three stages and four nozzles, each with specific geometric configurations and dimensions, including convergent-parallel-divergent, parallel, and parallel-divergent designs, along with internal nozzle positioning and external diaphragm placement, optimized by detailed component sizing calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional multi-ejector vacuum pumps use simple nozzle designs without optimized geometry, then the device complexity is reduced, but the vacuum generation efficiency deteriorates
Solution Approach 1:
The patent applies parameter changes by optimizing specific geometric parameters of the nozzles, including convergence angles, divergence angles, and diameter ratios. These parameter optimizations transform simple nozzle designs into highly efficient convergent-divergent nozzles that maximize vacuum generation performance while maintaining manageable complexity through systematic parameter selection.
Solution Approach 2:
The patent implements local quality by assigning different geometric characteristics to different sections of the nozzle. The convergent section has specific angle parameters optimized for fluid acceleration, while the divergent section has parameters optimized for vacuum generation. This localized optimization of geometric quality in different nozzle regions achieves high overall efficiency.
2Productivity
If the nozzle dimensions and geometry are not precisely defined, then the manufacturing complexity is reduced, but the vacuum performance deteriorates
Solution Approach 1:
The patent provides specific parameter ranges for nozzle dimensions including convergence angles (15-45 degrees), divergence angles (10-30 degrees), and diameter ratios. These defined parameters enable manufacturers to produce nozzles with controlled precision within acceptable tolerances while achieving optimal vacuum performance, balancing manufacturing feasibility with performance requirements.
3Loss of energy
If multi-ejector vacuum pumps operate without optimized stage configuration, then the system complexity is reduced, but the air consumption increases
Solution Approach 1:
The patent divides the vacuum generation system into multiple stages, each with its own ejector nozzle and vacuum chamber. This segmentation allows each stage to operate independently with optimized parameters, improving overall efficiency and reducing total air consumption compared to a single-stage system, while the modular nature keeps the added complexity manageable.
Solution Approach 2:
The patent introduces a multi-dimensional configuration where nozzles are arranged in series across multiple stages rather than a single dimension. This staged arrangement creates a dimensional progression of vacuum generation, with each stage building upon the previous one, achieving superior vacuum performance with reduced energy consumption through systematic dimensional organization.
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
Achieves significantly higher efficiency, with vacuum generation capabilities exceeding existing technologies by up to 5.5 times the standard condition, demonstrating improved performance and reduced air consumption.
Implementation Method 1
Multi-ejector vacuum pumps use the Venturi principle to generate a vacuum. Each nozzle comprises a convergent-divergent nozzle, in order to accelerate the fluid, decreasing its pressure, producing the vacuum for industrial applications.
Implementation Method 2
the first nozzle is convergent-parallel-divergent, the second nozzle is parallel, the third nozzle is parallel-divergent and the fourth nozzle is parallel-divergent
Implementation Method 3
each stage comprising a vacuum chamber and at least two diaphragms configured to act as one-way valves
Implementation Method 4
Each nozzle is configured to act as a receiver at its proximal end and an ejector at its distal end
Data Source
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AI summary
The present invention discloses a multi-ejector vacuum generator (2) for vacuum generating pump (100) comprising three stages (50,51,52) and four nozzles (62-65), each stage comprising a vacuum chamber and diaphragms (53) configured to act as one-way valves; wherein, the distal end of the first nozzle (62) is connected to the vacuum chamber of the first stage (50) in its proximal portion; the proximal end of the second nozzle (63) is connected to the first stage (50) vacuum chamber in its distal portion; the distal end of the second nozzle (63) is connected to the second stage (51) vacuum chamber in its proximal portion; the proximal end of the third nozzle (64) is connected to the second stage (51) vacuum chamber in its distal portion; the distal end of the third nozzle (64) is connected to the third stage (52) vacuum chamber in its proximal portion; and the proximal end of the fourth nozzle (65) is connected to the third stage (52) vacuum chamber in its distal portion. The present invention also discloses a vacuum generator pump (100) comprising a multi-ejector vacuum generator (2) as defined by the present invention and comprising a multi-ejector vacuum generator fastening means as defined by the present invention.