Submerged Pool Cleaner with Horizontal Pump and External Motor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing swimming pool cleaning devices are inefficient due to a vertically arranged pumping motor, leading to high hydraulic resistance, energy consumption, weight, and cost, with complex access paths for filtration devices, resulting in suboptimal performance and high costs.
Innovation Solution
A swimming pool cleaning device with a horizontally oriented pumping propeller and a pumping motor positioned below the hydraulic circuit, featuring a sealing assembly and an access flap located at the top or front, allowing for easy disassembly and maintenance, reducing vertical spatial requirements and hydraulic drag while maintaining suction and filtration performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the pumping motor is arranged vertically at the center of the hollow body, then the pump efficiency is improved by minimizing pressure losses, but the device becomes larger in vertical direction, increasing hydraulic resistance, energy consumption, weight, and size
Solution Approach 1:
The pumping motor is relocated from a vertical arrangement to a horizontal arrangement along the longitudinal axis of the device. This dimensional change allows the motor to be positioned outside the hollow body rather than inside, reducing vertical height while maintaining pump efficiency through optimized hydraulic circuit design.
Solution Approach 2:
The pumping motor is extracted from the hollow body and positioned externally. This separation allows the motor to be mounted on the outer surface of the hollow body, eliminating the need for internal vertical space and reducing the overall vertical dimensions of the device while maintaining pumping functionality.
2Power
If the pumping motor is arranged vertically at the center, then pump efficiency is improved, but the device requires greater vertical space and has higher hydraulic resistance to forward movement
Solution Approach 1:
The motor arrangement transitions from vertical to horizontal orientation. The motor is positioned along the longitudinal axis rather than vertically, changing the primary dimension of motor placement from height to length, thereby reducing vertical profile while maintaining pumping performance.
Solution Approach 2:
A hydraulic circuit acts as an intermediary between the externally positioned motor and the internal fluid system. This circuit transmits the pumping action from the external motor to the internal fluid pathway, allowing efficient pumping without requiring the motor to be vertically positioned inside the hollow body.
3Ease of operation
If the access flap is located at the base of the hollow body, then the filtering device can be accessed, but the liquid inlets require non-return devices such as valves, increasing complexity
Solution Approach 1:
Instead of positioning the access flap at the base as in conventional designs, the access flap is inverted to the top of the hollow body. This reversal allows the filtering device to be accessed from above without requiring complex non-return valves at the liquid inlets, simplifying the hydraulic circuit while maintaining ease of filter maintenance.
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 results in a device with lower power consumption, reduced size and weight, and improved handling and storage, achieving equivalent or superior performance with reduced energy usage and costs, while simplifying the disassembly and maintenance of the filtering device.
Implementation Method 1
an electric pumping motor which has a rotating drive shaft which is directly coupled to at least one axial pumping propeller which is interposed in the hydraulic circuit in order to generate therein a flow of liquid in the axial direction of the propeller
Implementation Method 2
said lower wall delimiting said hydraulic circuit and comprising a sealing assembly for said rotating shaft
Data Source
AI summary
Detailed is a device for cleaning an immersed surface including a body; members for driving the body; a filtration chamber which has: a liquid inlet and a liquid outlet; a filtering device which is removably mounted in the filtration chamber; a hydraulic circuit for the flow of liquid between the inlet and the outlet through the filtering device; an axial pumping propeller which is interposed in the hydraulic circuit; a flap for access to the filtering device, wherein the pumping propeller is orientated in order to generate a liquid flow with a horizontal component towards the rear, the outlet being opposite the propeller; the pumping motor is arranged below the hydraulic circuit; the access flap is arranged at the top and/or towards the front of the hydraulic circuit in order to allow the filtering device to be disassembled via the top and/or towards the front.