Heat Engine With Linear Actuators Preventing Blow-By
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Solution Overview
Problem
Existing heat engines, such as Wankel and rotary designs, face issues with blow-by due to simultaneous opening of inlet and exhaust ports, inefficient energy utilization, and lack of mechanical advantage, which affect their efficiency and performance.
Innovation Solution
A heat engine design featuring a triangular rotor with two inlets and two exhausts, controlled by valves to equalize pressure inside and outside the expansion chamber, and the use of gates to reduce expansion chamber volume and enhance mechanical advantage, along with a processor to optimize valve timing for maximum energy extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If inlet and exhaust ports are opened simultaneously in rotary heat engines, then gas flow is enabled, but blow-by occurs reducing efficiency
Solution Approach 1:
The engine divides the four-stroke cycle into two separate two-stroke cycles, with each cylinder performing only power and exhaust strokes. This segmentation prevents simultaneous opening of inlet and exhaust ports, eliminating blow-by while maintaining continuous power delivery through multiple cylinders.
Solution Approach 2:
The engine uses periodic valve actuation synchronized with rotor position to control inlet and exhaust openings. Valves are opened and closed at specific intervals during rotation, ensuring that inlet and exhaust ports are never open simultaneously, thus preventing blow-by while enabling controlled gas flow for continuous power cycles.
2Force
If expansion chamber volume is reduced using gates, then mechanical advantage is enhanced, but chamber capacity is limited
Solution Approach 1:
The engine employs movable gates that dynamically adjust the expansion chamber volume during operation. The gates can shift position to optimize the balance between chamber capacity and mechanical advantage, allowing the system to adapt to different operating conditions and maximize force output without being constrained by fixed geometry.
Solution Approach 2:
The gates act as intermediary elements between the expansion chamber and the rotor. By positioning these gates at strategic locations, the engine achieves mechanical advantage through lever arms and fulcrums, translating gas pressure into rotational force more effectively while maintaining adequate chamber volume for energy extraction.
3Loss of energy
If valve timing is optimized with processor control, then energy extraction is maximized, but system complexity increases
Solution Approach 1:
The processor-based control system uses feedback from sensors monitoring pressure, temperature, and rotor position to dynamically adjust valve timing. This closed-loop control optimizes energy extraction by precisely controlling when inlet and exhaust valves open and close, adapting to real-time operating conditions while maintaining manageable system complexity through intelligent algorithms.
Solution Approach 2:
The engine replaces complex mechanical timing mechanisms with electronic processor control. Instead of using intricate cam profiles, linkages, and mechanical synchronizers, the system uses electronic sensors and processors to control valve actuation, reducing mechanical complexity while achieving superior timing precision for maximum energy extraction.
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 achieves improved efficiency by utilizing elongated driving force, preventing blow-by, and maximizing energy extraction through equalized pressures, resulting in six power cycles per revolution and increased mechanical advantage.
Implementation Method 1
The expansion of the gas can be utilized to perform work... the gas inside the tank expands (from inside to outside the tank) until the pressures equalize
Implementation Method 2
controlled by valves to equalize pressure inside and outside the expansion chamber
Data Source
AI summary
The present invention relates to a heat engine having shafts with gears, position gears and a plurality of actuators. Energy is harnessed from the first shaft as it rotates. The second shaft can be coupled to the first shaft to transfer energy from the second shaft to the first shaft. One coupler is a chain. Position gears orient the chain wherein the rotation of the second shaft is inverted upon the first shaft so that the first shaft has a constant rotational orientation. Each actuator is preferably a double acting actuator that can supply force to both push and pull upon a belt connected to the actuator rod. A 1-way clutch and gear connects the belt to each shaft wherein the belt (driven by actuator) imparts a positive force upon the first shaft on the out stroke and a positive force upon the second shaft on the return stroke.