Composite Piston Machine Rotary Oscillating Pendular Movement
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Solution Overview
Problem
Conventional piston machines face challenges of low performance due to friction losses and manufacturing complexity, resulting in high costs and inefficiencies, particularly in the number of moving parts and manufacturing complexity.
Innovation Solution
A composite piston machine design incorporating combined rotary, oscillating, and pendular movements with minimal friction, featuring a main body with eccentric and centered cylindrical sectors, rotors, and composite pistons that reduce friction and enhance sealing, allowing for high mechanical performance and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional piston machines use traditional designs with multiple moving parts, then they can achieve basic compression or pumping function, but they suffer from low performance due to friction losses and high manufacturing costs
Solution Approach 1:
The patent combines rotary and reciprocating movements into a single integrated mechanism. The rotary piston moves in a circular path while simultaneously reciprocating, eliminating the need for separate crankshaft, connecting rod, and piston assemblies. This merging of movements reduces the number of moving parts and contact surfaces, thereby minimizing friction losses while maintaining high volumetric performance through the continuous rotary-reciprocating action.
Solution Approach 2:
The rotary reciprocating piston serves multiple functions simultaneously: it compresses or pumps fluid, generates rotary motion, and creates variable volume chambers all within a single component. This multi-functionality eliminates the need for separate mechanisms for each function, reducing overall system complexity and friction-related energy losses while improving volumetric efficiency.
2Adaptability or versatility
If conventional piston machines incorporate many moving parts to achieve desired functionality, then they can perform compression and pumping operations, but the manufacturing complexity and costs increase significantly
Solution Approach 1:
The patent merges multiple functional components into a single rotary reciprocating piston. Instead of having separate crankshafts, connecting rods, valves, and piston assemblies, the invention integrates all these functions into one rotary piston that performs compression, motion generation, and volume variation simultaneously. This dramatically reduces the number of moving parts while maintaining full functional capability.
Solution Approach 2:
The rotary reciprocating piston is designed as a universal component that performs multiple functions: fluid compression, rotary motion generation, and variable chamber volume creation. This single multi-functional component replaces what would traditionally require several separate parts, reducing device complexity while preserving adaptability and versatility for various compression and pumping applications.
3Reliability
If conventional piston machines use traditional sealing mechanisms with multiple parts, then they can maintain sealing, but the manufacturing complexity and lubrication requirements increase
Solution Approach 1:
The patent combines sealing functions directly into the rotary reciprocating piston surfaces rather than using separate sealing rings, gaskets, or labyrinth seals. The piston's cylindrical surface and the housing form the sealing interface, eliminating multiple separate sealing components. This reduces manufacturing complexity while maintaining reliable sealing through the continuous contact between the rotary piston and housing surfaces.
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 machine achieves high volumetric performance at high pressures with minimal friction and efficient sealing, enabling reduced dimensions and lower manufacturing costs while maintaining high mechanical performance and minimizing lubricant use.
Implementation Method 1
limiting the action of centrifugal force and maintaining the minimum distance between the inner cavity's surface and the piston heads
Data Source
AI summary
A composite piston machine has two moving assemblies of a rotor and a composite piston placed 180° out of phase with each other and linked to a shaft eccentrically placed inside the inner cavity of a main body that has ports for the inlet and outlet of fluids from it. This inner cavity is covered by two lids and divided in two working chambers by a separator. The composite pistons move following the rotation of the rotors while oscillating with respect of them and following the path of skid guides carved in separator and lids, dividing each working chamber in inlet and outlet chambers of variable volume, and intermittently obstructing the inlet and outlet of fluids from the inner cavity through the ports. The machine is designed for compressing gases or pumping liquids and can also operate as an engine driven by compressed gases or with pressurized liquids.