Radiant Rotary Heat Engine With Segmented Heating Cycles

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Solution Overview

Problem

Existing heat engines, such as internal combustion engines and rotary heat engines, face inefficiencies, noise, pollution, and large heat absorption surface requirements, limiting their practicality and deployment in applications like automotive, aerospace, and industrial uses.

Innovation Solution

A compact energy conversion device utilizing a heat absorber, power converter, and heat rejecter in a rotary unit, which employs radiant energy, segmented energy sources, and multiple thermodynamic cycles to enhance efficiency and reduce surface area requirements, while utilizing waste heat for additional work output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If convective heat transfer is used with conventional heat exchange structures, then heat transfer capability is achieved, but the required heat absorption surface area becomes excessively large

Engineering Contradiction:
Improveheat absorption surface areaVSAvoidthermal efficiency
Core Design Contradiction:
Area of stationary objectVSUse of energy by moving object

Solution Approach 1:

The patent replaces conventional convective heat transfer mechanisms with radiant heat transfer. Instead of using large heat exchange surfaces with convective fluids, the invention uses radiant energy sources (such as concentrated solar power or other radiant heating systems) that transfer thermal energy through radiation directly to the working fluid, eliminating the need for extensive heat absorption surfaces and convective heat exchange structures.

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

Solution Approach 2:

The patent fundamentally changes the heat transfer parameter from convective to radiant. By operating in the radiant heat transfer regime rather than convective, the system achieves high thermal efficiency with dramatically reduced surface area requirements. This parameter change allows the engine to achieve automotive-grade power output with a compact footprint suitable for vehicle installation.

Inventive Principle:
Principle #35Parameter changes

2Power

If internal combustion engines are used for transportation, then good service and power output are achieved, but noise and pollution are significant

Engineering Contradiction:
Improvepower outputVSAvoidnoise and pollution
Core Design Contradiction:
PowerVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the internal combustion mechanism with an external radiant heat source. Instead of burning fuel inside the engine cylinders, the system uses external radiant energy to heat the working fluid, eliminating combustion-related noise and emissions. The working fluid undergoes phase change and expansion to produce mechanical work without the harmful byproducts of combustion.

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

Solution Approach 2:

The patent extracts the combustion process from the engine system entirely. By using external radiant heating instead of internal combustion, the harmful aspects (noise, pollution, vibration) are separated from the power generation function. The engine becomes a clean thermal-to-mechanical energy converter that does not require fuel combustion.

Inventive Principle:
Principle #2Taking out (Extraction)

3Use of energy by moving object

If rotary heat engines are designed with optimized heat transfer structures, then nucleate boiling and dropwise condensation are promoted, but device complexity increases

Engineering Contradiction:
Improvethermal efficiencyVSAvoidheat transfer structure complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent replaces complex convective heat transfer structures with a simple radiant heating approach. Instead of designing intricate heat exchange surfaces, fins, and fluid flow paths to achieve nucleate boiling and dropwise condensation, the system uses direct radiant energy input that naturally produces the required phase change effects in the working fluid, greatly simplifying the overall device structure.

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

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 device achieves improved thermal efficiency, reduced noise, and lower pollution, with the potential to generate work at rates comparable to traditional engines, while being compact and cost-effective, enabling its use in various applications.

Implementation Method 1

employing radiant energy as the primary heat vector

Methodology Applied
Scientific EffectRadiant energy: Thermal Radiation

Implementation Method 2

optimized to promote nucleate boiling and dropwise condensation

Methodology Applied
Scientific EffectNucleate boiling: Boiling

Implementation Method 3

optimized to promote nucleate boiling and dropwise condensation

Methodology Applied
Scientific EffectDropwise condensation: Condensation

Implementation Method 4

The working fluid is vaporized in the heat absorber

Methodology Applied
Scientific EffectLatent heat: Latent Heat

Implementation Method 5

The vapor drives the power converter to produce work

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 6

utilize convection or forced convection as the primary heat vector

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 7

The vapor drives the power converter to produce work, and is then condensed in the heat rejecter

Methodology Applied
Scientific EffectCondensation: Condensation

Data Source

PatentUS8621867B2Rotary heat engine powered by radiant energy
Publication Date: 2014.01.07 SEPARATION DESIGN GROUP LLC
  • US8621867B2 patent drawing
  • US8621867B2 patent drawing
  • US8621867B2 patent drawing

AI summary

Provided is a rotating energy conversion device that includes a heat absorber having a working fluid therein, a power converter in fluid communication with the heat absorber, and a heat rejecter in fluid communication with each one of the heat absorber and the power converter. The device may utilize an energy source that provides radiant energy to the heat absorber. The device may utilize a segmented energy source that may have a plurality of segments, wherein each segment may be either activated or deactivated to deliver the radiant energy to the heat absorber. The device may utilize waste heat produced by the device to create additional work. Furthermore, the device may utilize multiple thermodynamic cycles.