Air Distributor Bar Double Chamber Uniform Flow

Solution Overview

Problem

Current air distributors in agricultural sprayers experience uneven air flow distribution, leading to inconsistent application of treatment substances, resulting in unsatisfactory treatment outcomes and resource wastage due to higher pressure at one end and lower pressure at the opposite end.

Innovation Solution

An air distributor bar with a breaking element featuring a double chamber and perforated plate-like element ensures uniform air flow distribution along its length, preventing pressure imbalances by channeling air through a tubular structure with openings that direct airflow first inward and then outward, ensuring consistent treatment substance distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If air is pumped in from the top (or bottom) of the distributor, then the air flow can be generated, but the air flow becomes non-uniform along the entire length of the distribution area due to compression at one end

Engineering Contradiction:

Improveair flow generationVSAvoidair flow uniformity

Core Design Contradiction:

SpeedVSStability of the object's composition

Solution Approach 1:

The distributor is divided into multiple chambers (first chamber and second chamber) separated by a partition wall. The breaking element further segments the first chamber into multiple flow paths. This segmentation allows air to be distributed through different routes, preventing compression at a single location and ensuring uniform air flow along the entire distribution area.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The breaking element acts as an intermediary component between the air inlet and the distribution slots. It breaks the direct flow path and redirects air through multiple intermediate channels (first and second chambers), thereby distributing air uniformly along the distributor length and eliminating pressure imbalances.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Quantity of substance

If air flows through the distributor from one end, then air can be delivered, but pressure imbalance occurs with higher pressure at one end and lower pressure at the opposite end

Engineering Contradiction:

Improveair deliveryVSAvoidpressure distribution

Core Design Contradiction:

Quantity of substanceVSStress or pressure

Solution Approach 1:

The distributor is divided into multiple chambers (first chamber and second chamber) separated by a partition wall. The breaking element further segments the first chamber into multiple flow paths. This segmentation allows air to be distributed through different routes, preventing compression at a single location and ensuring uniform air flow along the entire distribution area.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The breaking element creates multiple parallel flow paths with similar resistance characteristics, establishing equipotential conditions for air flow. This ensures that pressure is distributed uniformly across all distribution slots along the distributor, eliminating the pressure gradient that occurs in conventional single-path designs.

Inventive Principle:

Principle #12Equipotentiality

3Productivity

If treatment substance is sprayed through nozzles, then crop treatment can be applied, but uneven air flow results in inconsistent distribution of the treatment substance

Engineering Contradiction:

Improvetreatment applicationVSAvoiddistribution uniformity

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The distributor is divided into multiple chambers (first chamber and second chamber) separated by a partition wall. The breaking element further segments the first chamber into multiple flow paths. This segmentation allows air to be distributed through different routes, preventing compression at a single location and ensuring uniform air flow along the entire distribution area.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The breaking element creates locally optimized flow conditions at each distribution slot along the distributor. By providing multiple flow paths and distribution points, each local region receives uniform air flow, ensuring consistent treatment substance distribution across the entire treatment area.

Inventive Principle:

Principle #3Local quality

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

This solution achieves a perfectly uniform and constant spray pattern, enhancing the distribution of treatment substances across the entire length of the air bar, improving spraying performance and reducing the need for repeated applications.

Implementation Method 1

The breaking element is created by a substantially tubular element along which there are openings which, through a double chamber, cause the air to flow first through the innermost part of the device and then through the outermost part of the device

Methodology Applied

Scientific EffectAir flow distribution through perforated structure: Porosity

Data Source

PatentEP1933988B1Vertical air conveyor for agricultural sprayer machines

Publication Date: 2013.08.28 MARCANTONI IVANO

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Figure 8~10

AI summary

Described is an air distributing bar device for sprayers wherein the casing (2) into which the air is fed comprises a break (8) that creates a double wall where the air flows out through suitable openings (11), creating air flows that are perfectly uniform along the full length of the distributor itself.