Wine Vat Air Injection for Faster Grape Devatting

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Solution Overview

Problem

Existing methods for devatting grape harvests in wine production require manual intervention to remove residual pulp, are time-consuming, and rely on bulky, expensive stirrers that do not fully homogenize the mixture, leading to incomplete discharge and increased operational effort.

Innovation Solution

The method involves the controlled pressurized injection of air or inert gases into the bottom of wine making vats to homogenize the grape harvest mixture, allowing automated and efficient separation of liquid and solid phases using diffusers and pumps, with optional integration into a microprocessor-controlled system for precise operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional gravity-based devatting is used, then the structure is simple, but manual intervention is required and devatting time is long (4 hours)

Engineering Contradiction:
Improvedevatting speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies pneumatic principles by injecting pressurized air through diffusers at the bottom of the tank to fluidize and homogenize the grape harvest mixture. This pneumatic agitation enables complete devatting without manual intervention, reducing time from 4 hours to approximately 1 hour while maintaining system automation.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Stability of the object's composition

If stirrers are used to homogenize the mixture, then homogenization is improved, but the equipment becomes bulky, expensive, and requires complex maintenance

Engineering Contradiction:
Improvehomogenization qualityVSAvoidequipment complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent replaces mechanical stirrers with pneumatic diffusers that inject pressurized air to create bubbles and currents for homogenization. This eliminates bulky mechanical components, reduces maintenance requirements, and achieves complete homogenization of the grape harvest mixture without the complexity of mechanical stirring systems.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent substitutes mechanical stirring systems with a pneumatic system. Instead of using rotating blades or mechanical agitators, pressurized air is injected through diffusers to achieve homogenization, thereby eliminating mechanical complexity and maintenance needs while improving homogenization effectiveness.

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

3Stability of the object's composition

If stirrers are used for homogenization, then mixing is facilitated, but operator intervention is still needed due to incomplete homogenization

Engineering Contradiction:
Improvehomogenization completenessVSAvoidmanual intervention requirement
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The pneumatic diffuser system injects pressurized air throughout the mixture, creating vigorous circulation and complete homogenization. This eliminates residual pulp that would otherwise require manual removal, enabling fully automated devatting operation without operator intervention inside the tank.

Inventive Principle:
Principle #29Pneumatics and hydraulics

4Ease of operation

If conventional devatting method is used, then equipment is simple, but devatting time is long and manual labor is required

Engineering Contradiction:
Improveautomation levelVSAvoiddevatting duration
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent implements a fully automated pneumatic devatting system where pressurized air is injected through diffusers to homogenize and fluidize the grape harvest mixture. This automated pneumatic system reduces devatting time from 4 hours to approximately 1 hour and eliminates the need for manual intervention, achieving both time efficiency and operational automation.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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

Enables complete homogenization of the grape harvest mixture, reducing manual intervention and devatting time, while ensuring efficient separation and recovery of liquid and solid components, and includes a cleaning mechanism to prevent putrefaction.

Implementation Method 1

pressurised injection of air or other gases in a controlled manner into self-emptying wine making vats

Methodology Applied
Scientific EffectAeration: Aeration

Implementation Method 2

injection of pressurised air into the lower portion of the frustoconical-shaped bottom of the tank... the liquid and solid phases of the grape harvest are perfectly homogenised

Methodology Applied
Scientific EffectFluidisation: Fluidisation

Implementation Method 3

the entire dry solid portion is extracted... The pulp therefore falls, due to the effect of gravity, into an open pipe

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP4707374A2Method for devatting the grape harvest
Publication Date: 2026.03.11 PROD AGROVIN
  • EP4707374A2 patent drawingFigure 1
  • EP4707374A2 patent drawingFigure 1B
  • EP4707374A2 patent drawingFigure 1C

AI summary

The invention relates to a method for devatting the grape harvest and a means for devatting a grape harvest via the pressurised injection of air or other gases in a controlled manner into self-emptying wine making vats or similar, for the purpose of emptying the grape harvest once the maceration thereof has been completed, after the homogenisation of the mixture, transferring the liquid portion to another tank and the crushed grape pulp to the press, thereby obtaining a solid phase (pomace) as a waste product which can be used to produce associated products.