Hermetically Sealed Linear Generator for Gas Energy Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Linear generators face inefficiencies due to direct contact with combustion products, high magnetization losses, and suboptimal energy generation from internal combustion engines, limiting their widespread adoption and energy efficiency.
Innovation Solution
A compact, hermetically sealed linear generator design that converts pressurized gas energy into mechanical and electrical energy, using a single winding and external permanent magnets to minimize temperature exposure and reduce magnetization losses, with a cylinder made from ferromagnetic or paramagnetic materials to enhance magnetic flux and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If linear generators are integrated with internal combustion engines, then power generation capability is improved, but magnetization losses increase due to direct contact with combustion products and high temperatures
Solution Approach 1:
The device separates the combustion chamber from the magnetic system by introducing a piston that divides the cylinder into two independent chambers. The combustion occurs in one chamber while the magnetic system operates in the other chamber, preventing direct contact between combustion products and magnetic components, thereby reducing magnetization losses while maintaining power generation capability
Solution Approach 2:
The magnetic system is extracted from the combustion environment and placed in a separate chamber isolated from hot gases. This extraction eliminates the harmful thermal and chemical exposure to permanent magnets and windings, significantly reducing magnetization losses and allowing the use of materials with lower Curie temperatures
2Device complexity
If combustion products directly contact windings and magnetic system, then energy conversion is simplified, but material durability and efficiency deteriorate due to high temperatures and corrosive environment
Solution Approach 1:
The cylinder is segmented into two separate chambers by a piston, creating isolated environments for combustion and magnetic operation. This segmentation maintains construction simplicity while protecting materials from thermal and chemical degradation, thereby improving reliability and material durability
Solution Approach 2:
The piston acts as an intermediary element that transmits mechanical force from combustion to the magnetic system without allowing direct contact between combustion products and sensitive magnetic components. This intermediary protects materials while maintaining the energy conversion function
3Use of energy by moving object
If high pressure gas is used for energy conversion, then energy density is improved, but sealing requirements and manufacturing complexity increase
Solution Approach 1:
The device utilizes pressure changes of gas as the primary energy conversion mechanism. By controlling gas pressure parameters and using a piston-based system, the invention achieves high energy density while maintaining manageable sealing requirements through conventional piston-seal interfaces rather than requiring complex high-pressure containment
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 increases energy efficiency by reducing magnetization losses and allowing the use of materials with lower Curie temperatures, enabling efficient energy conversion and storage, particularly in gas supply networks and heat supply systems, while avoiding voltage interruptions and simplifying construction.
Implementation Method 1
converts the pressure energy of a gas medium into a mechanical movement
Implementation Method 2
a magnetic body (3; 4; 5; 6; 7) with permanent magnets, on which a winding (1) is wrapped
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to power plants, in particular to the generation of electrical energy from the energy of steam or compressed gas. The device is not divided into a generating and a motor section. This results in a minimal number of parts being required for the device's construction. It is also possible to provide a completely hermetically sealed version of the device. A considerable pressure is generated within the housing. The completely hermetically sealed device can be used in the following applications: - generating electrical energy during gas pressure reduction at gas distribution points, - utilizing the energy of vapors from materials with a high boiling point. This makes it possible to develop highly marketable external combustion plants designed for generating electrical energy.This significantly expands the range of fuel types that can be used more widely. The device is simple and maintenance-free, and can therefore be used extensively in combined heat and power (CHP) systems to meet the needs of individual households. One of the possible applications of the device is the utilization of waste heat from combustion engines.