Pond Pump Dual Suction Channels Stability

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Solution Overview

Problem

Existing pond pumps face instability due to swiveling intake manifolds, which compromise overall stability and allow coarse contaminants to enter the pump circuit, necessitating frequent cleaning and adjustments to manage water intake from both pond bottom and surface.

Innovation Solution

A pond pump design featuring fixed intake channels and a flow distribution device that divides the intake volume into separate channels for suction from within and outside the housing, enhancing stability and preventing coarse impurities from entering the pump circuit, with adjustable flow control via a rotatable valve body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a swiveling intake manifold is used to adjust water intake from different locations, then the pump can suck water from both pond bottom and surface, but the overall stability of the pump is compromised

Engineering Contradiction:
Improvewater intake adjustment capabilityVSAvoidpump stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The pump is divided into multiple independent suction channels (first suction channel through housing wall, second suction channel from outside housing) that can operate simultaneously or independently, eliminating the need for a single swiveling intake manifold while maintaining the ability to draw water from different locations

Inventive Principle:
Principle #1Segmentation

2Device complexity

If the pump sucks water through the housing wall only, then the structure is simple, but coarse impurities such as leaves can enter the pump circuit

Engineering Contradiction:
Improvesuction structure simplicityVSAvoidcoarse impurity contamination
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The suction function is segmented into two separate channels: the first suction channel draws water through the housing wall for general intake, while the second suction channel draws additional water from outside the housing to create a dilution effect and reduce the concentration of coarse impurities entering the pump circuit

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If an adjustable intake connector is provided to control flow proportions, then flow conditions can be adjusted, but the displacement area requires adequate coverage to prevent coarse contaminants from entering

Engineering Contradiction:
Improveflow condition adjustabilityVSAvoidcoarse contaminant entry
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

Instead of a single adjustable intake connector that requires complex displacement area coverage, the system uses two separate fixed suction channels that naturally draw water from different locations, reducing the risk of coarse contaminant entry while maintaining flow adjustability through the control device

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control device acts as an intermediary that regulates the flow proportions from the two suction channels without requiring physical movement of the channels themselves, thereby maintaining stable positioning while achieving flow adjustment

Inventive Principle:
Principle #24Intermediary (Mediator)

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 increases the stability of the pond pump by eliminating swiveling components and ensuring even water intake, reducing the need for frequent cleaning and improving flow distribution, while allowing for controlled water suction from both the bottom and surface.

Implementation Method 1

a pump device being provided inside the housing, which transports liquid from a suction area to a pressure connection

Methodology Applied
Scientific EffectPumping: Pump

Implementation Method 2

The housing of these pumps acts as a coarse filter and has openings, for example in the form of slots or holes, through which water can penetrate into the interior of the housing, but coarser impurities such as leaves or larger particles cannot

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP1908961B1Pond pump with two suction ducts
Publication Date: 2009.06.24 FIAP FISCHTECHN
  • EP1908961B1 patent drawingFigure 1
  • EP1908961B1 patent drawingFigure 2a~4d
  • EP1908961B1 patent drawingFigure 3a~3e

AI summary

The pump (1) has a housing and a pump device (5) arranged within the housing. A suction connection (8) and a pressure output (10) stay in fluid connection with each other. The suction connection opens out in two suction channels (14, 16) that are separated from each other, where the channel (14) sucks fluid through a housing wall and the channel (16) sucks the fluid existing outside the housing. The channels are arranged opposite to the housing and a flow distribution device (18) is provided to divide a suction volume of the suction connection on the suction channels.