Floating-Piston Cylinder Layout for Separate Compression Combustion
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Solution Overview
Problem
Existing internal combustion engines face challenges in optimizing cylinder forces and internal pressure while minimizing the release of unburned fluids and fuel mixed fluids, while still achieving excellent power output, leading to inefficiencies and environmental concerns.
Innovation Solution
A cylinder system with a floating piston and a dedicated compression space that allows for four-stroke operations in two reciprocating cycles, utilizing a second fluid inlet to control internal pressure and reduce displacement volume, combined with electromagnetic or hydraulic actuators to manage the floating piston's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If stroke volume is increased to improve power output, then engine economy deteriorates
Solution Approach 1:
The invention divides the cylinder into two separate functional spaces: a compression space for compressing the air-fuel mixture and a combustion space for burning the mixture. This segmentation allows the compression and combustion processes to occur in distinct regions, enabling better control over the thermodynamic cycles and improving overall engine efficiency without requiring increased stroke volume.
Solution Approach 2:
The invention introduces a floating piston that moves independently within the cylinder, creating a three-dimensional spatial arrangement where the compression space and combustion space coexist. This dimensional approach allows simultaneous compression and combustion operations, effectively increasing power output without proportionally increasing the engine's displacement volume.
2Productivity
If two-stroke engine design is used to increase power stroke frequency, then unburned exhaust emissions increase
Solution Approach 1:
By separating the compression and combustion functions into distinct spaces within the same cylinder, the invention enables complete combustion in the combustion space while the compression space prepares fresh charge. This segmentation ensures that exhaust gases are fully burned before expulsion, reducing unburned hydrocarbon emissions even with increased stroke frequency.
Solution Approach 2:
The floating piston design allows continuous compression and combustion operations to occur simultaneously in different parts of the cylinder. The compression space continuously prepares fresh air-fuel mixture while the combustion space completes burning, ensuring complete combustion at all times and preventing unburned emissions even during high-speed operation.
3Object-generated harmful factors
If four-stroke engine design is used to reduce emissions, then cylinder force optimization is limited
Solution Approach 1:
The floating piston is designed to move dynamically within the cylinder, adjusting its position to optimize the compression ratio and combustion chamber volume in real-time. This dynamic adjustment allows the engine to maintain complete combustion for emission control while simultaneously optimizing cylinder pressure and force generation across different operating conditions.
Solution Approach 2:
The invention changes the physical parameters of the combustion process by creating a dedicated combustion space with controlled volume and pressure. The floating piston enables continuous adjustment of compression ratio and combustion chamber geometry, optimizing both combustion completeness for emission reduction and cylinder force for power generation.
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
This system achieves over 80% recovery potential, enhances engine performance, and reduces fuel intake requirements while maintaining high power output and minimizing exhaust emissions.
Implementation Method 1
the occupying structure is used to accelerate into the space of cylinder, under the combustion or hydraulic forces, in the direction of the crankshaft during the time of a power stroke to compete with combustion fluid for space, to minimize displacement volume and to increase internal cylinder pressure
Implementation Method 2
fluid decompression by way of opening a fluid inlet, to allow compressed air to move into and toward the combustion space during a later part of a power stroke for the purpose of removing exhaust fluid from the primary combustion space, and to provide cooling effects to occupying structure
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
Implementations are disclosed herein that relate to a cylinder occupying structure. An example provides a cylinder system comprising a mechanical cylinder including an internal space in which a fluid is introduced, and a piston configured for reciprocating motion in the internal space, and a cylinder occupying structure including a floating piston, wherein the floating piston is variably advanced into, and retracted from, the internal space of the cylinder in correspondence with the reciprocating motion of the piston and where parts of the occupying structure and the piston may surround the combustion space, and where fluid compression and fluid combustion is conducted within separate spaces.