Steam-Injection Scrambled Egg Device for Fat-Free Portioned Cooking

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Solution Overview

Problem

Existing methods for preparing scrambled eggs are time-consuming, lack reproducibility, and often require excessive fat, making them unsuitable for large-scale catering and health-conscious diets, while existing devices either result in uneven cooking or are too slow for commercial use.

Innovation Solution

A device that uses steam to foam egg mixtures, allowing for fully automatic, fat-free preparation of portioned scrambled eggs, with a steam generator, dispenser for spices, and a lance for controlled steam release to create a fluffy, consistent product.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If scrambled eggs are cooked in conventional pans with fat, then they prevent sticking and are easy to prepare, but excessive fat is detrimental to health and cholesterol

Engineering Contradiction:
Improvefat contentVSAvoidpreparation simplicity
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent introduces steam as an intermediary medium to replace fat in the cooking process. The steam generator produces steam that is injected into the egg mixture, allowing the eggs to cook without direct contact with fat, thus eliminating the harmful fat content while maintaining ease of preparation through the automated steam injection system

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical stirring and flipping process with an automated steam injection system. The lance with openings distributes steam uniformly throughout the egg mixture, substituting the manual mechanical cooking process with an automated thermal process that eliminates the need for fat as a lubricant

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

2Productivity

If scrambled eggs are cooked for several people in conventional pans, then they can serve multiple portions, but the process is time-consuming and lacks reproducibility

Engineering Contradiction:
Improvecooking speedVSAvoidquality consistency
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent segments the cooking process into controlled phases: steam generation, steam injection into portioned egg mixtures, and automated timing. Each portion can be prepared simultaneously in separate containers, allowing multiple servings to be produced quickly and consistently through standardized steam injection parameters

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent incorporates a control system that monitors and regulates the steam injection process, ensuring consistent cooking parameters for each portion. The controller manages the steam generator and injection timing to maintain quality consistency across multiple portions, enabling reproducible results for catering use

Inventive Principle:
Principle #23Feedback

3Object-affected harmful factors

If a vertical egg cooker is used to prepare scrambled eggs, then they can be cooked without fat, but a vertical density gradient forms and the process is too slow for commercial use

Engineering Contradiction:
Improvefat contentVSAvoidcooking speed
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The patent transitions from vertical steam injection to horizontal/lateral steam injection through the lance design. The lance with multiple openings distributes steam laterally across the egg mixture surface, eliminating the vertical density gradient problem while maintaining fat-free cooking and enabling faster commercial-scale preparation

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Productivity

If beaten eggs are cooked in a microwave, then they cook quickly in just over a minute, but the product is unappealing and too firm

Engineering Contradiction:
Improvecooking speedVSAvoidproduct quality
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent changes the cooking parameters by using steam injection at controlled temperatures and pressures rather than microwave radiation. The steam temperature, injection pressure, and duration are optimized to produce a fluffy, appealing texture while maintaining quick cooking time suitable for commercial use

Inventive Principle:
Principle #35Parameter changes

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 quick, reproducible, and healthy preparation of fluffy scrambled eggs, suitable for both private and commercial use, with automatic operation and adjustable parameters for consistent results.

Implementation Method 1

An electrically operated steam generator is arranged in the housing for producing steam

Methodology Applied
Scientific EffectPhase change (water to steam): Phase Change

Implementation Method 2

at least one lance is provided, which has a nozzle at its end for discharging the steam generated in the steam generator into a container holding the portioned egg mixture

Methodology Applied
Scientific EffectSteam heating: Heating

Data Source

PatentEP3565444B1Device for preparing portioned quantities of scrambled egg without fat
Publication Date: 2020.12.23 SCRAEGG GMBH
  • EP3565444B1 patent drawingFigure 1

AI summary

The invention relates to a device for preparing portioned quantities of scrambled egg or scrambled egg variants without fat by foaming egg mass, in particular fresh eggs, whole eggs or liquid eggs, or ready-made egg mixtures with spices and ingredients, comprising - a housing, - an electric steam generator arranged in the housing, - a connection to a water source or a water tank, said connection being fluidically connected to the steam generator and being arranged within or outside of the housing, - an electric pump which is preferably arranged in the flow path between the water source or the water tank and the steam generator, - preferably a safety valve, - at least one lance which is arranged outside of the housing and comprises an end-face nozzle for discharging the steam generated in the steam generator into a container that contains the portioned egg mass, and - a control/regulating device for a control of the temperature, pressure, and time or for a corresponding regulation.