Microwave Essential Oil Extractor with Condenser Shield
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Solution Overview
Problem
Assembling a small-scale steam distillation system for extracting essential oils is not easily feasible for home use, but the advent of microwave ovens provides a new tool for performing steam distillation of essential oils.
Innovation Solution
An essential oil extractor apparatus designed for use in a microwave oven, comprising a container for holding essential oil-containing material, a condenser to vaporize and condense the oil, and a receiver to collect the condensed oil, with microwave reflection structures to minimize heating of the condenser and enhance vapor passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional steam distillation system is assembled for essential oil extraction, then extraction efficiency is improved, but device complexity and difficulty of assembly increase
Solution Approach 1:
The patent combines multiple functions (heating, vaporization, condensation, and collection) into a single integrated microwave extraction apparatus. The container serves as both the heating chamber and collection vessel, while the condenser is integrated directly into the container structure, eliminating the need for separate traditional distillation equipment and complex assembly.
Solution Approach 2:
The microwave oven itself is utilized as the heating source, serving dual purposes as both a common kitchen appliance and the extraction heat source. The apparatus can extract essential oils from various plant materials using the same setup, making it universally applicable for different extraction needs without requiring specialized equipment.
2Speed
If microwave energy is used to heat the condenser for vaporization, then extraction speed is improved, but the condenser material may be damaged by excessive heating
Solution Approach 1:
A microwave-absorbing material is introduced as an intermediary between the microwave energy source and the condenser. This material selectively absorbs microwave energy to generate heat for vaporization while protecting the condenser from direct microwave exposure and excessive temperature rises that could damage its structure.
Solution Approach 2:
The microwave-absorbing material is strategically positioned only in specific regions where heat generation is needed for vaporization, while other areas (particularly the condenser regions) are designed to remain cooler or have different thermal properties, creating localized thermal zones that protect sensitive components.
3Ease of operation
If the apparatus is designed to fit in a standard microwave oven, then ease of operation and space utilization are improved, but the size of extraction components is limited
Solution Approach 1:
The apparatus employs a nested structure where the condenser is positioned inside or integrated with the container, and the collection chamber is nested within the overall apparatus structure. This maximizes the use of available space within the microwave oven cavity, allowing functional components to be compact yet sufficient for effective extraction.
Solution Approach 2:
The design utilizes vertical space and three-dimensional arrangement of components to overcome volume limitations. The condenser extends vertically, and the apparatus is configured to utilize the height and depth dimensions of the microwave cavity, allowing adequate component functionality within a compact footprint that fits standard ovens.
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 efficient extraction of small quantities of essential oils by vaporizing and condensing them within a microwave oven, allowing for effective collection and separation of the essential oil from water, suitable for home use and scalable for various organic materials.
Implementation Method 1
configured to transmit microwaves through the container to the essential oil-containing material to cause the essential oil to vaporize
Implementation Method 2
configured to receive and condense essential oil-containing vapor emitted by essential oil-containing material within the container
Implementation Method 3
The condenser can be configured to contain a volume of condensing material, such as ice, having a temperature below a condensation temperature of the received vapor such that the received vapor is caused to condense by the condensing material
Implementation Method 4
a shield is positioned around the condensing material and configured to reflect and/or block microwaves from reaching the condensing material
Data Source
AI summary
Disclosed herein are embodiments of an essential oil extraction apparatus. In some embodiments, the apparatus comprises a container configured to hold an essential oil-containing material, an essential oil extract receiver contained in the container, a condenser having an outlet fluidly coupled to the receiver and located relative to the container so as to receive essential oil-containing vapor emitted by the essential oil-containing material; and at least one microwave reflection structure associated with at least one of the container, the receiver or the condenser. The apparatus can have an overall dimension that is sufficiently small so that the apparatus fits inside a standard-sized kitchen microwave oven.