Closed-Cycle Engine Optical Sensing for Compact Power Generation

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Solution Overview

Problem

Large wheeled vehicles require powerful engines to propel both the vehicle and trailers, leading to the need for large internal combustion engines, which can be inefficient and costly.

Innovation Solution

Implementing a closed-cycle engine system with a sensor system that includes a piston assembly, connection member, sled, and a sensor system to monitor operating conditions, utilizing noble gases as working fluid and a control system to manage temperature differentials for efficient power generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a large internal combustion engine is used to provide enough power for the vehicle and trailer, then the power output is sufficient, but the engine size and weight increase

Engineering Contradiction:
Improvepower outputVSAvoidengine weight
Core Design Contradiction:
PowerVSWeight of moving object

Solution Approach 1:

The patent replaces the traditional internal combustion engine with a closed-cycle engine system that uses a working fluid (noble gas) to transfer thermal energy between a heat source and heat sink, driving a piston assembly to generate power. This substitution eliminates the need for large combustion chambers and heavy engine components while maintaining power output through efficient thermal energy conversion.

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

Solution Approach 2:

The patent changes the operating parameters by using noble gases (helium, neon, argon, krypton, or xenon) as the working fluid instead of air or fuel-air mixtures. This parameter change enables higher thermal efficiency and allows the engine to operate at different temperature differentials, reducing the required engine size for the same power output.

Inventive Principle:
Principle #35Parameter changes

2Power

If a large internal combustion engine is used to provide enough power for the vehicle and trailer, then the power output is sufficient, but the energy efficiency decreases

Engineering Contradiction:
Improvepower outputVSAvoidenergy efficiency
Core Design Contradiction:
PowerVSLoss of energy

Solution Approach 1:

The closed-cycle engine system replaces the inefficient internal combustion process with a thermodynamically efficient cycle that continuously circulates a working fluid through compression, heating, expansion, and cooling stages. This substitution recovers thermal energy that would otherwise be lost in traditional engines, significantly improving energy efficiency while maintaining power output.

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

Solution Approach 2:

The system incorporates sensors that monitor operating conditions (temperature, pressure, piston position) and provide feedback to the control system. This feedback enables real-time optimization of the thermal cycle parameters, maximizing energy efficiency by adjusting the temperature differentials and timing based on actual operating conditions.

Inventive Principle:
Principle #23Feedback

3Loss of energy

If a closed-cycle engine system is implemented with sensor monitoring, then the energy efficiency improves, but the device complexity increases

Engineering Contradiction:
Improveenergy efficiencyVSAvoidsystem complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The control system performs multiple functions: it monitors sensor data, processes signals, determines operating conditions, and adjusts engine parameters to optimize efficiency. This multi-functional approach consolidates what could be separate complex subsystems into a single integrated control unit, managing energy efficiency while minimizing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The sensor system automatically monitors and reports operating conditions without requiring manual intervention. The control system uses this self-reported data to autonomously optimize engine performance, reducing the need for complex external monitoring and control infrastructure while maintaining high energy efficiency.

Inventive Principle:
Principle #25Self-service

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 closed-cycle engine system provides efficient power generation with reduced size and weight, enhancing vehicle performance and reducing energy consumption.

Implementation Method 1

a receiver including a receiver light guide and a photodetector configured to receive reflected light from the light source

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS12442329B1Sensor system for a closed-cycle engine
Publication Date: 2025.10.14 HYLIION HOLDINGS CORP
  • US12442329B1 patent drawing
  • US12442329B1 patent drawing
  • US12442329B1 patent drawing

AI summary

An engine may include an engine body. A piston assembly may be positioned at least partially within the engine body and including a first piston and a second piston. A connection member may be operably coupling the first piston to the second piston and causing the first piston and the second piston to move in conjunction with one another. A sled may be operably coupled with the connection member. A load member may be operably coupled with sled, the load member movable with the sled. A sensor system may be positioned through at least a portion of the engine body and operably coupled with the sled. The sensor system may include a transmitter configured to direct modulated emitted light into a sled chamber and a receiver configured to receive reflected light from the light source.