Rotary Combustion Engine Torque and Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reciprocating engines in automobiles and power generation suffer from low fuel efficiency, with most efficient engines converting less than 35% of fuel energy into usable power, and they also contribute to global warming due to heat energy loss through intermediate linkages.
Innovation Solution
A rotary engine design with a cylindrical cavity, a rotatable power shaft, and a main wheel with radial bars and torque enhancer pockets, featuring outward opening valves and microcontroller-controlled spark timing, optimized for reduced vibration and improved combustion efficiency, capable of using gasoline or hydrogen fuel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If reciprocating engine is used, then torque is generated, but fuel efficiency is low (less than 35% conversion efficiency)
Solution Approach 1:
The engine is divided into multiple combustion chambers (at least two) arranged radially around the rotor, with each chamber independently contributing to power generation. This segmentation allows continuous combustion events throughout the rotation cycle, improving overall fuel conversion efficiency while maintaining power output.
Solution Approach 2:
The combustion process is initiated before the piston reaches top dead center position, with the spark plug firing during the expansion stroke. This preliminary timing optimization ensures maximum pressure is achieved at the optimal moment for power delivery, improving thermal efficiency without sacrificing torque.
2Loss of energy
If reciprocating engine is used, then power is generated, but heat energy is lost through intermediate linkages
Solution Approach 1:
The traditional intermediate linkage components (connecting rods, crankshaft, pistons) are completely removed from the design. Instead, combustion chambers are formed directly within the rotor assembly, and combustion pressure acts directly on the rotor surfaces to generate torque. This extraction of intermediate linkages eliminates the primary pathways for heat energy loss while simplifying the mechanical structure.
Solution Approach 2:
The complex mechanical linkage system is replaced with a direct rotary combustion mechanism where burning gas pressure acts directly on the rotor surface. This substitution eliminates mechanical friction and heat transfer through multiple components, reducing energy loss while maintaining power generation capability.
3Loss of energy
If rotary engine with minimal components is used, then heat loss is reduced, but torque delivery mechanism must be simplified
Solution Approach 1:
The rotor is designed with curved, spherical-like combustion chambers that maximize the surface area for combustion pressure application. The spherical geometry ensures uniform distribution of combustion forces and optimizes the lever arm for torque generation, maintaining strong torque delivery despite the elimination of complex mechanical linkages.
Solution Approach 2:
The engine transitions from linear reciprocating motion to rotational motion, utilizing the radial dimension for force application. Combustion chambers are arranged radially around the rotor axis, allowing simultaneous combustion events at multiple radii, which generates continuous torque throughout the rotation cycle and compensates for the simplified force transmission mechanism.
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 rotary engine achieves higher efficiency than existing rotary and reciprocating engines by minimizing heat loss and complexity, reducing vibration, and enhancing torque delivery, while being environmentally friendly by utilizing hydrogen fuel generated from solar power.
Implementation Method 1
A combustion process is engaged in a demarcated combustion chamber whereby the combustion chamber rotatably travels from a bottom dead volume to a top dead volume
Implementation Method 2
The outward opening valve moves away from the cylindrical cavity to open a valve port
Data Source
AI summary
The inventive rotary engine comprises a cylindrical chamber inside a casing wherein there is a concentric rotatable power shaft and a rotatable asymmetric main wheel mounted eccentrically enough as such to avoid contact with the wall of cylindrical chamber. Additionally two bars traversing the main wheel radially further having a wiping contact with the cylindrical chamber wherein one bar is fixed with power shaft and other bar is hinged with said power shaft. A combustion process is in action within a demarcated combustion chamber whereby the combustion chamber rotatably travels from a bottom dead volume to a top dead volume and hence a power, generated during this path of rotational travel, is subsequently available for delivery at the concentric power shaft.