Electric Chestnut Roaster With Vapor Condensation and Auto Control

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Solution Overview

Problem

Existing machines for roasting chestnuts using coal and/or gas pose hygiene and safety concerns in public spaces due to vapor and smoke emissions, and there is a lack of electric automatic machines suitable for indoor use.

Innovation Solution

An electric automatic chestnut roasting machine with a compact design, featuring a cooking chamber with heating means, a rotating arm for uniform cooking, a condensation system to recover vapors, and automated vapor condensation and withdrawal, allowing for safe and hygienic operation within closed spaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If coal and/or gas are used for roasting chestnuts, then roasting can be achieved, but vapor and smoke emissions occur causing hygiene and safety problems in public spaces

Engineering Contradiction:
Improvevapor and smoke emissionsVSAvoidroasting capability
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent changes the energy source parameter from combustion-based (coal/gas) to electric heating, eliminating vapor and smoke emissions while maintaining the roasting function. The heating element uses electrical resistance to generate heat directly, transforming the physical-chemical process from combustion to resistive heating.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical/chemical combustion system with an electrical heating system. The combustion process involving fuel oxidation is substituted by electrical resistance heating, eliminating the harmful emissions associated with combustion while achieving the same thermal processing effect.

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

2Object-affected harmful factors

If electric heating is used to eliminate emissions, then hygiene and safety are improved, but automatic control and programming complexity increases

Engineering Contradiction:
Improveemission eliminationVSAvoidcontrol and programming electronics
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent implements automatic control systems that enable the roasting machine to operate autonomously. The control electronics automatically regulate heating temperature, timing, and vapor condensation processes without requiring manual intervention, making the increased complexity worthwhile by eliminating emissions and ensuring consistent roasting quality.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent incorporates control and programming electronics that likely include feedback mechanisms to monitor and adjust heating parameters, vapor condensation rates, and overall roasting conditions. This automated feedback control system manages the complexity by optimizing performance and maintaining safety standards automatically.

Inventive Principle:
Principle #23Feedback

3Object-affected harmful factors

If vapor condensation and recovery systems are added, then hygiene is improved by eliminating emissions, but device complexity increases

Engineering Contradiction:
Improvevapor emission controlVSAvoidcondensation and recovery system
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent converts the harmful vapor emissions into a beneficial resource by implementing a condensation and recovery system. The vapor produced during roasting is captured, condensed back to liquid form, and the liquid is collected and potentially reused or disposed of properly, transforming an environmental hazard into a controlled process output.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent implements a vapor recovery system that captures condensible vapors during the roasting process, condenses them through cooling, and collects the resulting liquid in a reservoir. This prevents vapor emissions into the environment and allows for proper disposal or potential reuse of the condensed material.

Inventive Principle:
Principle #34Discarding and recovering

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 machine ensures efficient, safe, and hygienic roasting of chestnuts with reduced operator intervention, eliminating vapor and smoke emissions, and providing optimal roasting conditions while maintaining safety and hygiene standards.

Implementation Method 1

said heating means for cooking chestnuts are comprised of an electric resistance, provided on the upper portion of said cooking chamber

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

condensation means, for transforming said vapor or gas into liquid

Methodology Applied
Scientific EffectCondensation: Condensation

Implementation Method 3

a coil, within which gas or vapor is cooled

Methodology Applied
Scientific EffectCooling: Cooling

Data Source

PatentEP2386232B1Electric automatic machine for roasting chestnuts
Publication Date: 2013.06.26 F&F CATALANI
  • EP2386232B1 patent drawingFigure 1~2
  • EP2386232B1 patent drawingFigure 3~4
  • EP2386232B1 patent drawingFigure 5~6

AI summary

The present invention relates to an eelectric automatic machine (1) for roasting chestnuts, comprising a body (2), an element (3) for supplying chestnuts from outside, means for sucking and cooking vapour condensation and recovering, and means (4) for withdrawing roasted chestnuts, said body (2) providing a cooking chamber, provided, at least on the above, with heating means (6), and of a container for cooking said chestnuts, provided a rotating arm (8) for moving chestnuts, said chestnut supplying element (3) being provided above said cooking chamber, said chestnut withdrawal means (4) being provided under said cooking chamber and connected with the same by inner communication means, said machine (1) being provided with control and programming electronics.