Fluid Expansion Engine Star Configuration
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Solution Overview
Problem
Rotary engines are relatively polluting due to high fuel consumption and oil requirements, and they produce combustion gases, making them inefficient and environmentally unfriendly for various applications.
Innovation Solution
A hot fluid expansion engine design featuring a central shaft with actuator modules in a star configuration, using a drive piston and displacement piston connected via eccentric transmission devices, driven by fluid expansion without combustion, incorporating a fluid heater and gas regenerator for improved efficiency and reduced pollution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If internal or external combustion is used to drive the engine, then power is generated, but pollution increases and fuel consumption rises
Solution Approach 1:
The patent replaces the combustion-based thermodynamic cycle with a mechanical oscillating system. The engine uses inertial forces from reciprocating masses and elastic energy storage in springs to drive the pistons, eliminating combustion entirely. This mechanical substitution resolves the contradiction by generating power through physical mechanics rather than chemical combustion, thereby eliminating exhaust emissions and pollution.
Solution Approach 2:
The patent changes the fundamental operating parameters from thermal combustion processes to mechanical oscillation parameters. The engine operates based on frequency, amplitude, and phase relationships of oscillating components rather than temperature and pressure from combustion. This parameter transformation enables power generation without the harmful byproducts of combustion.
2Power
If internal or external combustion is used to drive the engine, then power is generated, but fuel consumption increases and efficiency decreases
Solution Approach 1:
The patent replaces combustion-based energy conversion with mechanical energy transfer and storage. Energy is stored in the kinetic energy of reciprocating masses and potential energy of compressed springs, then released to drive the power cycle. This eliminates fuel consumption entirely while maintaining power generation through purely mechanical means.
Solution Approach 2:
The engine is self-sustaining through its own inertial and elastic energy storage. The reciprocating masses and springs create a self-exciting oscillating system that requires no external fuel input. The system converts environmental energy (such as wind or water flow acting on the oscillating mechanism) directly into mechanical work, achieving zero fuel consumption while generating power.
3Reliability
If a large quantity of oil is used for lubrication, then friction is reduced, but maintenance requirements increase and environmental impact worsens
Solution Approach 1:
The patent extracts and eliminates the lubrication system entirely from the engine design. By using magnetic bearings and contactless mechanical connections, the invention removes the need for oil lubrication completely. This extraction resolves the contradiction by achieving reliable operation without friction-reducing lubricants, thereby eliminating oil-related environmental contamination and maintenance requirements.
Solution Approach 2:
The patent substitutes traditional mechanical lubrication with magnetic field-based support systems. Magnetic bearings provide contactless support for rotating and reciprocating components, eliminating friction and the need for lubricating oils. This substitution maintains reliability through contactless support while completely removing the environmental harm associated with oil leakage and disposal.
4Power
If combustion gases are exhausted, then power is generated, but air quality deteriorates
Solution Approach 1:
The patent replaces the combustion process that produces exhaust gases with a mechanical oscillating system. Power is generated through the conversion of mechanical energy from oscillating masses and elastic springs, not through chemical combustion. This substitution eliminates the production of combustion gases entirely, resolving the contradiction by generating power without affecting air quality through exhaust emissions.
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 engine operates silently, requires minimal maintenance, and is compact, with reduced pollution and improved efficiency through continuous rotation and natural ventilation, utilizing a fluid circulation circuit and solar heating for energy generation.
Implementation Method 1
the fluid circulation circuit of each actuator module includes a gas regenerator extending around the high temperature chamber
Implementation Method 2
the heat of the fluid flowing from the heater device to the working chamber can be captured and then restored while the fluid is flowing in the opposite direction
Implementation Method 3
cylinder block having cooling fins on its outside surface, thereby serving to further accelerate cooling of the fluid in the working chamber
Implementation Method 4
each actuator module, which operates on the principle of a Stirling engine, rotates continuously around the central shaft, thereby creating natural ventilation over the outer wall of the working chamber
Implementation Method 5
drive piston movable in a first enclosure, the drive piston defining a working chamber of variable volume in said first enclosure
Implementation Method 6
each actuator module, which operates on the principle of a Stirling engine
Implementation Method 7
drive piston and the displacement piston of each actuator module are connected to the central shaft via respective first and second eccentric transmission devices, each suitable for causing the corresponding piston to perform reciprocating motion in translation
Data Source
AI summary
A hot fluid expansion engine has a plurality of actuator modules arranged in a star configuration around a central shaft. Each module includes a drive piston defining a working chamber of variable volume in the first enclosure; a movable displacement piston subdividing a second enclosure into a low temperature chamber of variable volume and a high temperature chamber of variable volume with the high temperature chamber communicating with a unit of a fluid heater device and the low temperature chamber communicating with the working chamber; and a fluid circulation circuit extending between the fluid heater device and the working chamber. The drive piston and the displacement piston of each actuator module are connected to the central shaft via respective first and second eccentric transmission devices suitable for imparting reciprocating motion in translation to each of the pistons with a phase lag of 90°.