Vacuum Cooling Line Integration for Continuous Product Cooling

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Solution Overview

Problem

Existing vacuum cooling systems for baked goods are space-consuming, time-consuming, and energy-intensive, requiring manual handling and leading to increased manufacturing costs due to their integration with intermittently operating thermoforming packaging machines.

Innovation Solution

A cooling line with vacuum cooling stations integrated along a product conveyor, allowing products to pass through in one direction, utilizing vacuum cooling chambers to achieve compact, energy-efficient cooling without manual handling, synchronized with upstream baking and downstream packaging processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If long cooling lines with spirally arranged conveyor belts are used to cool baked goods, then the products can be cooled in ambient air, but the cooling lines occupy a relatively large installation space and require a considerable amount of time to cool the hot baked goods

Engineering Contradiction:
Improvecooling temperatureVSAvoidinstallation space
Core Design Contradiction:
TemperatureVSArea of stationary object

Solution Approach 1:

The patent applies vacuum cooling by creating a vacuum environment (inert atmosphere without oxygen) in the cooling chamber. This allows rapid cooling of baked goods through evaporative cooling without requiring long cooling lines, thus reducing installation space while achieving effective temperature reduction

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

Solution Approach 2:

The patent utilizes phase transition of water (from liquid to vapor) under vacuum conditions to achieve cooling. The moisture on the surface of baked goods evaporates rapidly in the vacuum environment, absorbing heat and cooling the products quickly without needing extensive cooling infrastructure

Inventive Principle:
Principle #36Phase transitions

2Temperature

If vacuum refrigerators are used to cool baked goods, then the products can be quickly cooled to a desired temperature level, but several manual steps must be carried out before the vacuum cooling process and the production volume is low

Engineering Contradiction:
Improvecooling temperatureVSAvoidproduction volume
Core Design Contradiction:
TemperatureVSProductivity

Solution Approach 1:

The patent implements an automated system where baked goods are automatically transferred from the baking unit to the vacuum cooling chamber and then to the packaging unit. The system self-regulates the vacuum cooling process and product flow, eliminating manual handling steps while maintaining high production volume through continuous automated operation

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent creates a continuous automated flow where baking, vacuum cooling, and packaging operations are seamlessly connected. Products move continuously through the system without manual intervention, maintaining constant production volume while achieving rapid cooling through the integrated vacuum cooling station

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If vacuum cooling systems are integrated into intermittently operating thermoforming packaging machines, then the cooling process can be synchronized with packaging, but the manufacturing costs increase

Engineering Contradiction:
Improveintegration with packaging processVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent integrates the vacuum cooling station as a distinct module within the packaging line, with separate vacuum chambers that can operate independently. This segmentation allows the cooling function to be added to existing packaging lines without requiring complete system redesign, thereby controlling manufacturing costs while maintaining adaptability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent designs the vacuum cooling station to serve multiple functions: cooling baked goods, preparing them for packaging, and potentially serving other food processing applications. This multi-functionality justifies the integration cost by providing versatile capabilities that benefit the entire production line

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution enables rapid, space-saving, and energy-efficient cooling of products, reducing manual steps and increasing output by integrating vacuum cooling stations with the conveyor, facilitating seamless integration with packaging processes.

Implementation Method 1

at least one vacuum cooling station provided along a section of the product conveyor cools the products transported into it on the product conveyor by means of a vacuum generated within the vacuum cooling station

Methodology Applied
Scientific EffectVacuum cooling: Vacuum

Implementation Method 2

a vacuum cooling station configured for vacuum cooling is assigned to a section of the product conveyor or a section of the cooling line

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP4647688A1Method and cooling line for vacuum cooling hot products
Publication Date: 2025.11.12 MULTIVAC SEPP HAGGENMULLER GMBH & CO KG
  • EP4647688A1 patent drawingFigure 1
  • EP4647688A1 patent drawingFigure 2
  • EP4647688A1 patent drawingFigure 3

AI summary

Method for cooling products (P) transported along a cooling line (1) by means of a product conveyor (3a, 3b) provided thereon in the direction of transport (T), wherein at least one vacuum cooling station (2a, 2b) provided along a section of the product conveyor (3a, 3b) cools the products (P) transported into it on the product conveyor (3a, 3b) by means of a vacuum generated within the vacuum cooling station (2a, 2b).