Spray Dispenser Nozzle and Buffer Layout for Consistent Discharge

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Solution Overview

Problem

Traditional trigger spray dispensers require repetitive and variable pressure application, leading to inconsistent liquid discharge, which is problematic for targeted applications like pest control and weed management.

Innovation Solution

A spray dispenser with a nozzle design featuring swirl chambers, vertical and horizontal inlet ports, and a buffer system, optimized to provide consistent liquid discharge and reduce pressure fluctuations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a traditional trigger spray dispenser is used, then the device is simple and easy to manufacture, but the liquid discharge is inconsistent due to variable pressure application

Engineering Contradiction:

Improveliquid discharge consistencyVSAvoidnozzle structure complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The nozzle is segmented into multiple functional components: vertical inlet ports for liquid entry, horizontal inlet ports for buffer connection, swirl chambers for flow stabilization, and an outlet orifice for controlled discharge. This segmentation allows each component to perform its specific function independently, achieving consistent liquid discharge while maintaining manufacturing feasibility

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The buffer system is pre-connected to the horizontal inlet ports of the nozzle, establishing a stabilized pressure source before liquid enters the nozzle. This preliminary action of pressure stabilization ensures that liquid discharge consistency is achieved without requiring complex active control mechanisms during operation

Inventive Principle:

Principle #10Preliminary action

2Reliability

If repetitive trigger squeezing is used to dispense product, then the device requires minimal physical exertion, but pressure fluctuations cause variable discharge force

Engineering Contradiction:

Improvespray discharge consistencyVSAvoidtrigger actuation effort

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The buffer system acts as a cushioning element that absorbs pressure fluctuations caused by repetitive trigger squeezing. By pre-establishing a stabilized pressure reservoir, the buffer compensates for variable actuation forces, ensuring consistent liquid discharge reliability without requiring the user to exert precise control over trigger pressure

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Measurement precision

If the trigger lever is positioned for one-hand operation, then the device is convenient to use, but the spray targeting precision deteriorates due to pressure variability

Engineering Contradiction:

Improvespray targeting precisionVSAvoidone-hand operation convenience

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The buffer system creates a copied or replicated pressure source that is independent of the trigger actuation variations. This pressure copying mechanism ensures that even with convenient one-hand trigger operation, the liquid discharge maintains consistent pressure and targeting precision, decoupling operational convenience from discharge reliability

Inventive Principle:

Principle #26Copying

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 optimized nozzle design and buffer system ensure a consistent and controlled spray pattern, enhancing the effectiveness of pest control and weed management products.

Implementation Method 1

a spray dispenser with a nozzle design featuring swirl chambers, vertical and horizontal inlet ports, and a buffer system, optimized to provide consistent liquid discharge and reduce pressure fluctuations

Methodology Applied

Scientific EffectPressure stabilization: