Manure Nozzle Body Flow Grooves for Uniform Pressure

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Solution Overview

Problem

Existing devices for spreading liquid manure face challenges in achieving uniform pressure distribution across outlet openings, leading to uneven manure flow, and are often too heavy for retrofitting on simple tankers due to high weight and complex design.

Innovation Solution

A nozzle body with concavely formed flow grooves on its curved upper side and a convex underside, designed to improve flow conditions and pressure distribution, is mirror-symmetrically arranged with flow grooves to enhance backflow modification, allowing for adjustable outlet pressure and composed of two plastic halves for cost-effective production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a motor-driven rotor with flexible hoses is used to distribute liquid manure, then the distribution can be controlled, but the device becomes complex and very heavy

Engineering Contradiction:
Improvecontrolled distributionVSAvoiddevice complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent extracts the complex motor-driven rotor mechanism and replaces it with a simple pipeline system with nozzle bodies. The essential function of distributing liquid manure is retained while removing the heavy motorized components, achieving a lightweight solution suitable for retrofitting on simple tankers.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical motor-driven rotor system with a passive pipeline system that relies on fluid dynamics and pressure distribution. The nozzle bodies with flow grooves create the necessary flow conditions without requiring mechanical actuation, substituting a complex mechanical system with a simpler hydraulic system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Extent of automation

If a motor-driven rotor with flexible hoses is used to distribute liquid manure, then the distribution can be controlled, but the device becomes very heavy resulting in impermissible negative support load

Engineering Contradiction:
Improvecontrolled distributionVSAvoiddevice weight
Core Design Contradiction:
Extent of automationVSWeight of moving object

Solution Approach 1:

The patent extracts the heavy motorized components from the distribution system and replaces them with lightweight plastic nozzle bodies. This extraction of unnecessary weight while retaining the essential distribution function enables retrofitting on simple tankers that cannot support heavy equipment.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses inexpensive plastic materials for the nozzle bodies instead of heavy metal components. The plastic nozzle bodies are lightweight, cost-effective, and can be easily replaced if needed, providing an economical solution that doesn't burden the tanker with excessive weight.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Weight of moving object

If simple pipeline with openings is used, then the device is lightweight, but the pressure distribution at outlet openings is uneven

Engineering Contradiction:
Improvedevice weightVSAvoidpressure distribution
Core Design Contradiction:
Weight of moving objectVSStress or pressure

Solution Approach 1:

The patent applies local quality by incorporating specific flow groove geometries into the nozzle bodies at different positions along the pipeline. The flow grooves are tailored to create appropriate backflow conditions at each location, ensuring uniform pressure distribution across all outlet openings despite their varying distances from the pipeline end.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the flow parameters by introducing flow grooves that modify the backflow characteristics. These grooves alter the local flow velocity, pressure, and turbulence conditions to compensate for the natural pressure drop along the pipeline, achieving uniform pressure distribution at all outlet openings.

Inventive Principle:
Principle #35Parameter changes

4Ease of manufacture

If nozzle body is made as one piece, then production is simpler, but manufacturing precision and cost-effectiveness are reduced

Engineering Contradiction:
Improveproduction simplicityVSAvoidmanufacturing precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent segments the nozzle body into two halves that can be manufactured separately using injection molding processes. This segmentation allows for better manufacturing precision in each half, easier quality control, and cost-effective production, while the two halves are then joined to form the complete nozzle body with the required flow groove geometry.

Inventive Principle:
Principle #1Segmentation

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 nozzle body ensures more uniform manure flow across all outlet openings, simplifies production, and allows for closer ground application with a metal connecting flange, addressing the issues of complexity and weight in existing devices.

Implementation Method 1

at least one additional, concave flow groove (09) is formed on the hood-like domed upper surface (07) of the nozzle body (01), which forms a ramp-like flow surface

Methodology Applied
Scientific EffectFlow groove: Groove

Implementation Method 2

This equalization of the pressure conditions is achieved by an additional modification of the backflow flow, with which the slurry is backed up in the pipeline

Methodology Applied
Scientific EffectBackflow modification:

Implementation Method 3

the nozzle body has a convex underside that can be positively engaged with the inside of the pipeline

Methodology Applied
Scientific EffectPositive engagement:

Data Source

PatentEP3794920B1Nozzle body for use in a device for distributing manure
Publication Date: 2022.04.06 GEUKING ALEXANDER
  • EP3794920B1 patent drawingFigure 1
  • EP3794920B1 patent drawingFigure 2

AI summary

The invention relates to a nozzle body (01) for use in a device for distributing liquid manure on a ground surface, wherein the nozzle body (01) can be inserted into a pipe opening of a pipeline (02) of the device, and wherein the nozzle body (01) has an inlet opening (04) that can project into the interior of the pipeline (02), and wherein the nozzle body (01) has an outlet opening (05) that can project out of the interior of the pipeline (02), and wherein the inlet opening (04) can be oriented towards the rear end of the pipeline (02), and wherein the upper surface of the nozzle body (01) facing into the interior of the pipeline (02) forms a hood-like curved, ramp-like flow surface (07) along which the liquid flowing in the pipeline (02) can flow, wherein the flow surface (07) of the nozzle body (01) has at least one concave curve into the nozzle body. (01) has a molded flow groove (08, 09).