Annular Impeller Pool Cleaner with Eddy Trap for Debris Handling
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Solution Overview
Problem
Existing handheld pool vacuum cleaners lack sufficient suction force and often damage filtration systems due to larger debris accumulating before the strainer, and they are inefficient in processing a large volume of water quickly.
Innovation Solution
A handheld pool cleaner featuring an annular impeller with spiral veins on its inner surface, an eddy trap upstream, and a strainer/filter bag assembly downstream, which allows larger debris to be collected before the impeller and protects the filter from damage, while enabling efficient water flow and suction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a traditional pump design is used, then the structure is simple, but the suction force is insufficient and water processing volume is limited
Solution Approach 1:
The patent employs curved vortex generator blades arranged in a circular pattern within the pump housing. These curved blades generate rotational water flow and vortex patterns, utilizing centrifugal force to enhance water intake and suction capability. The curved geometry of the blades and the circular arrangement create efficient fluid dynamics that significantly improve suction force compared to traditional linear pump designs.
Solution Approach 2:
The invention utilizes hydraulic principles by creating a vortex flow pattern within the water-filled pump housing. The rotating blades generate centrifugal hydraulic forces that draw water and debris into the pump intake, then force them through the filtration system. This hydraulic vortex mechanism provides powerful suction force without requiring complex mechanical linkages or multiple moving parts.
2Productivity
If no pre-filtering is used, then larger debris can pass through unobstructed, but the strainer/filter may be damaged
Solution Approach 1:
The patent incorporates a pre-filtration screen positioned at the pump intake that captures larger debris particles before they enter the main pump chamber and reach the strainer bag. This preliminary filtering action removes twigs, leaves, and other large particulate matter upstream, preventing them from damaging the more delicate strainer filter while allowing the pump to maintain high water processing volume.
Solution Approach 2:
The filtration system is segmented into multiple stages: a coarse pre-filter screen at the intake that captures large debris, followed by the main strainer bag that filters finer particles. This segmentation allows each filter component to handle specific particle sizes appropriately, protecting the main strainer from damage by large objects while maintaining high productivity through efficient multi-stage filtration.
3Productivity
If the impeller draws water about the outside, then the structure is simpler, but suction efficiency is reduced
Solution Approach 1:
The pump employs a circular housing with curved vortex generator blades arranged in a rotational pattern. Water enters radially and is forced to rotate around the central axis, creating a vortex flow pattern that efficiently draws water from all directions simultaneously. This curved, rotational design maximizes water processing volume by utilizing centrifugal forces to move large quantities of water through the filtration system in a given time period.
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 design enhances suction force, prevents damage to filtration systems, and allows for a higher volume of water to be processed efficiently, effectively collecting larger debris without pre-filtering and reducing wear on filter bags.
Implementation Method 1
The motor rotates to drive the high speed rotation of the impeller, and the centrifugal and displacement forces generated in the high-speed rotation of the impeller creates suction to draw sewage water into the input
Implementation Method 2
The fluid flow disruptions create an eddy trap in the fore receptacle, causing heavier, larger or denser debris to fall into or collect within the fore receptacle while other debris is able to pass through the impeller without pre filtering
Implementation Method 3
The output may include an aft receptacle having a strainer/filter bag assembly, or it may include a direct connection adapted to receive a hose to a built in pool filtration system
Data Source
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AI summary
The present portable pool cleaner (100) is provided with an improved annular impeller (200), which facilitates the possible use of a fore receptacle (102) without a filter bag, operating as an eddy trap for large debris, and also facilitates having an aft receptacle (303) incorporating a filter bag (302) or direct connection to in pool filtration systems. The annual impeller (200) is able to effectively limit object size passing to the next stage, within impeding or striking objections passing through the inside gap in the annular impeller (200). The impeller duct/annular shape, with internal spiral blades (202), forms a through hole for the light sewage to more easily pass, while heavier particles in the sewage are trapped. The optional fore and aft receptacles (102, 303) may be detachable to facilitate cleaning, replacement and access to the impeller (200) for cleaning or replacement. The handheld design facilitates underwater use.