Multi-Axis Rotary Engine Combustion Efficiency
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Solution Overview
Problem
Internal combustion engines are inefficient due to their design, particularly in converting chemical energy from fossil fuels into mechanical energy, necessitating an improved rotary engine configuration.
Innovation Solution
A rotary engine design featuring a housing with a combustion chamber, a piston, a quadrant, and a post that rotate on acutely angled axes, allowing for a compression-expansion mechanism with air porting that facilitates intake and exhaust, enabling four power strokes per revolution and efficient energy conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional internal combustion engine design is used, then power generation is achieved, but energy conversion efficiency is poor
Solution Approach 1:
The patent employs dynamic rotation of the piston disk and quadrant on acutely angled axes to create continuously varying combustion chamber volume. This dynamic geometry optimizes the compression and expansion processes, improving thermal efficiency and energy conversion while maintaining compact dimensions suitable for mobile applications.
Solution Approach 2:
The invention introduces multi-axis rotation with acute angle relationships between rotation axes, transitioning from conventional single-axis piston motion to three-dimensional rotational dynamics. This dimensional change enables simultaneous optimization of combustion chamber volume, power stroke duration, and compact packaging, resolving the contradiction between efficiency and power density.
2Loss of energy
If combustion chamber volume is optimized for power stroke, then energy conversion improves, but device complexity increases
Solution Approach 1:
The patent merges the piston, quadrant, and post into an integrated rotating assembly where multiple functions are combined in single components. The piston disk serves both as the combustion chamber seal and as a rotating flywheel, while the quadrant integrates both compression and expansion chamber walls, reducing the number of separate parts while maintaining optimized volume geometry.
Solution Approach 2:
The rotating assembly performs multiple functions simultaneously: the piston disk rotates to alternately compress and expand the combustion chamber, the quadrant provides structural support and defines chamber geometry, and the post acts as both a structural element and a valve actuator. This multi-functionality reduces overall device complexity while maintaining energy conversion efficiency.
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 design enhances energy conversion efficiency by optimizing the combustion chamber's volume change and power stroke, providing a lightweight, compact, and efficient power source for vehicles and mechanical devices.
Implementation Method 1
combusting fuel injected into the combustion chamber expands and pushes on the piston disk to rotate the output shaft about the piston rotation axis
Implementation Method 2
the expansion of the high-temperature and high-pressure gases produced by combustion apply direct force to some component of the engine
Data Source
Figure 1A
Figure 1B
Figure 2A~2B
AI summary
A rotary engine including a housing and housing head enclosing a combustion chamber, a piston including an output shaft and a piston disk within the housing and rotatable on a piston rotation axis, a quadrant within the housing and around the piston and rotatable on a quadrant rotation axis, wherein the quadrant rotation axis is acutely angled to the piston rotation axis, and a post surrounding a segment of the piston disk. The post pivots relative to the piston about a post-piston rotation axis that is normal to the face of the piston disk. The post pivots relative to the quadrant about a post-quadrant pivot axis that is perpendicular to the quadrant rotation axis. The post rotates about the quadrant rotation axis relative to the housing. Combusting fuel injected into the combustion chamber expands and pushes on the piston disk to rotate the output shaft about the piston rotation axis.