Axial Piston Fluid Engine with External Shaft Bearings
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Solution Overview
Problem
Traditional steam engines are costly and require excessive maintenance due to complex manufacturing, numerous moving parts, and the need to separate working and lubrication fluids, which is essential for improving efficiency and reducing costs in consumer and light industry solar markets.
Innovation Solution
The axial piston and valve shaft fluid engine design features a shuttle valve or sliding valve configuration with external piston shaft support bearings, eliminating internal lubrication and reducing friction, and utilizing a single piston-operated sliding intake valve to minimize moving parts and external valve linkages, thereby reducing manufacturing and maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional steam engines use internal lubrication with numerous moving parts, then reliability is improved through lubrication, but device complexity increases and maintenance requirements increase
Solution Approach 1:
The patent removes the lubrication system entirely from the steam engine design. By extracting the lubrication function and replacing it with an external bearing system, the invention eliminates the complexity of internal lubrication mechanisms while maintaining reliability through a simpler, external support system for the piston shaft.
Solution Approach 2:
The patent introduces external bearing supports as intermediary elements that provide the necessary support and reduction of friction for the piston shaft without requiring internal lubrication. These external bearings act as mediators between the piston shaft and the engine housing, eliminating the need for complex internal lubrication systems.
2Reliability
If traditional steam engines separate working and lubrication fluids, then purity of working fluid is improved, but device complexity increases due to additional separation mechanisms
Solution Approach 1:
The patent extracts the lubrication fluid entirely from the system by eliminating internal lubrication. This removes the need for any fluid separation mechanisms while ensuring the purity of the working steam fluid, as no lubrication fluid is present to contaminate or mix with the steam.
3Manufacturing precision
If traditional steam engines use custom small-scale manufacturing, then manufacturing precision is improved for specific applications, but manufacturing cost increases
Solution Approach 1:
The patent segments the engine into modular components with standardized interfaces. The piston shaft, bearings, valve mechanisms, and cylinder are designed as separate, interchangeable modules that can be manufactured using standard machining processes rather than custom small-scale manufacturing, reducing costs while maintaining precision through standardized tolerances.
Solution Approach 2:
The patent designs components with universal applicability across different engine sizes and configurations. The standardized bearing supports, valve mechanisms, and piston shaft designs can be used in various applications, eliminating the need for custom-manufactured parts for each specific application and reducing overall manufacturing costs.
4Adaptability or versatility
If traditional steam engines have large numbers of moving parts, then functionality is improved through complex valve control, but maintenance requirements increase
Solution Approach 1:
The patent merges the valve control functions into a simplified mechanism that uses the piston's own motion to operate the intake and exhaust valves. By combining the piston's reciprocating motion with valve actuation through mechanical linkages, the invention reduces the number of separate moving parts while maintaining effective valve control functionality.
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 design achieves higher thermal efficiencies, reduces material and labor costs, maintains critical alignment, and prevents fluid mixing, resulting in a low-maintenance, cost-effective steam engine with improved operational efficiency.
Implementation Method 1
A high-pressure fluid chamber forces a piston to expand
Implementation Method 2
external piston shaft support bearings, eliminating internal lubrication and reducing friction
Data Source
AI summary
Systems and methods for implementing a uniflow fluid engine having at least one cylinder having at least one high-pressure input and at least one low-pressure output. In some embodiments, the engine includes piston-operated valves that are related to the piston shaft and pistons that may also act as exhaust valves. In some embodiments, a valve is slidably positioned within the cylinder on the piston shaft, the valve being movable between a first position allowing input fluid to be conveyed through a first passage and blocking input fluid from a second passage, and a second position allowing input fluid to be conveyed through the second passage and blocking input fluid from the first passage.