Water Faucet Micro Flow Ejector Dynamics

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Solution Overview

Problem

Existing water faucets face issues with improper water usage due to their unreasonable structure, leading to wastage, particularly with large flow faucets causing sputtering and inability to dynamically handle changes in water pressure and flow resistance, which affects water quality and efficiency.

Innovation Solution

A water faucet design featuring a micro flow ejector with a vent hole, a flow-adjusting positioning screw, and a hollow flow regulating valve with a T-shaped rear part and cone-shaped head, allowing for stepless adjustment of water flow and pressure compensation within the range of 0.1 to 0.35 MPa, enabling users to control water flow, velocity, and shape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a flow-limiting choke device with fixed hole is used to create high-speed jet flow and spray atomized water, then water-saving efficiency is improved through high flow impact, but the problem of large flow faucets causing water sputtering cannot be solved

Engineering Contradiction:
Improvewater-saving efficiencyVSAvoidwater sputtering
Core Design Contradiction:
Loss of energyVSObject-generated harmful factors

Solution Approach 1:

The water outlet is divided into multiple spray holes instead of a single large opening, creating multiple small jets that reduce sputtering while maintaining water-saving efficiency. The spray head contains numerous small holes that segment the water flow into controlled streams.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a movable spray head that can be adjusted along the water outlet channel to change the spray angle and distance. This dynamic adjustment allows optimization of spray pattern to eliminate sputtering while maintaining effective water-saving performance across different usage conditions.

Inventive Principle:
Principle #15Dynamics

2Object-generated harmful factors

If fixed resistance and flow-limiting bubbler faucets are used to accelerate water flow and form multi-strand linear water with inhaled air, then water-saving and anti-sputtering are achieved, but the faucet cannot dynamically handle changes in water pressure and flow resistance

Engineering Contradiction:
Improvesputtering preventionVSAvoiddynamic pressure handling
Core Design Contradiction:
Object-generated harmful factorsVSAdaptability or versatility

Solution Approach 1:

The spray head is made movable and adjustable, allowing it to be positioned at different distances from the water outlet and at different angles. This dynamic capability enables the faucet to adapt to varying water pressure conditions, maintaining effective spray performance whether pressure is high or low, and preventing sputtering across different flow rates.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent allows adjustment of spray parameters including distance from outlet, spray angle, and hole orientation. By changing these parameters, the faucet can optimize its performance for different water pressure conditions, handling both high and low pressure effectively while maintaining sputtering prevention.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the water pressure is increased to improve foaming effect, then better water quality and aeration are achieved, but water consumption increases beyond acceptable limits

Engineering Contradiction:
Improvewater quality and aerationVSAvoidwater consumption
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The water flow is segmented into multiple small jets through numerous spray holes, which increases the surface area for air mixing and aeration. This segmentation achieves effective foaming and oxygenation without requiring high water pressure, thereby maintaining water quality while controlling consumption within acceptable limits.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes the interaction between water jets and air to create natural aeration and foaming effects. The spray design promotes air entrainment and mixing without requiring pressure increases, achieving reliable water quality improvement through pneumatic-hydraulic interaction rather than pure pressure-driven flow.

Inventive Principle:
Principle #29Pneumatics and hydraulics

4Quantity of substance

If the water pressure is decreased to reduce water consumption, then water-saving is improved, but the water flow becomes thin and ineffective

Engineering Contradiction:
Improvewater consumptionVSAvoidwater flow effectiveness
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

Even at low water pressure, the segmented spray holes create multiple active water streams that maintain effective coverage. The segmentation ensures that each small jet is sufficient for its designated area, preventing the flow from becoming thin and ineffective while keeping overall consumption low.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adjustable spray head allows optimization of spray distance and angle to maximize the effectiveness of low-pressure flow. By dynamically adjusting the position and orientation, the faucet maintains productive water delivery even when pressure and overall flow are reduced for water-saving purposes.

Inventive Principle:
Principle #15Dynamics

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 faucet effectively reduces water wastage by allowing users to dynamically adjust water flow and pressure, achieving efficient water consumption between 1.5 to 9 liters per minute, improving water quality through enhanced oxygenation and aeration, and addressing issues of sputtering and foaming.

Implementation Method 1

a water outlet passage, a miniature jet device... capable of providing a high-speed jet gas-water mixed fluid flow

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Implementation Method 2

It uses the fluid continuity principle and conservation of energy principle. In the water exit of the faucet, there is a fixed hole choke device to cause the small water flow to realize a high-speed jet flow and spray the atomized water

Methodology Applied
Scientific EffectFluid continuity principle and conservation of energy principle:

Implementation Method 3

an air mixing type showerhead, wherein an air inlet hole is arranged on a main flow water hole of the head in order to provide a mix of air and water

Methodology Applied
Scientific EffectAir entrainment: Air Entrainment

Data Source

PatentEP2657581B1Water faucet
Publication Date: 2016.11.23 LIU XIONGHUI
  • EP2657581B1 patent drawingFigure 1~2
  • EP2657581B1 patent drawingFigure 3~4

AI summary

Disclosed is a water faucet, in which a main body (1) is composed of a water outlet channel (2) and a water inlet channel (3), with a micro flow ejector (5) having a vent hole (4) fitted between, the water outlet channel (2) and the water inlet channel (3), a flow-adjusting positioning screw (6) fitted, on a hollow inner circular tube wall (14) behind the micro flow ejector (5), between the micro flow ejector (5) and the flow-adjusting positioning screw (6) there being fitted a hollow flow regulating valve (8) which is T shaped at the rear portion and cone shaped at the head portion; wherein the cone-shaped head portion of hollow flow regulating valve (8) is provided with an ejecting orifice (9), the small cylindrical tube wall of the hollow flow regulating valve (8) is provided with more than one water inlet/outlet hole (10), and an air inlet check valve (13) is placed in the vent hole (4) of the micro flow ejector (5). By using the water faucet with the above-mentioned structure of the present application, users are able to conveniently control and regulate the flow rate of water consumption at will, to obtain a water quality activated by highly effective oxygenation during water utilization, with a water supply amount between 1.5 liters and 9 liters per minute under a water supply pressure range of 0.1 MPa to 0.35 MPa.