Anti-Cavitation Manifold Pin Stop Shuttle Ball
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Solution Overview
Problem
Existing anti-cavitation hydraulic manifolds in dual motor, reversible hydraulic drive systems are prone to failure due to incorrect installation, where the shuttle ball can be entrained by hydraulic liquid flow or gravity, leading to system lock-ups and unpredictable performance.
Innovation Solution
An improved anti-cavitation hydraulic manifold design where a pin stop confines the shuttle ball within each input/output chamber, ensuring it seats on the annular valve seat regardless of orientation or connection type, preventing entrainment and allowing for both axial and perpendicular high-pressure couplings, with additional hydraulic input ports for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shuttle ball is confined by a stop in the input/output chamber, then the system reliability is improved by preventing entrainment and lock-ups, but the device complexity increases due to additional components
Solution Approach 1:
The manifold is divided into separate input/output chambers, each with its own stop and shuttle ball arrangement. This segmentation allows independent control and prevention of entrainment in each chamber, improving reliability without requiring a complete redesign of the entire system.
Solution Approach 2:
The stop is pre-positioned in the input/output chamber to confine the shuttle ball before hydraulic flow can cause entrainment. This preliminary positioning prevents the harmful effect from occurring in the first place, eliminating lock-ups before they can happen during operation.
2Adaptability or versatility
If the manifold allows both axial and perpendicular high-pressure couplings, then the adaptability is improved for different installation orientations, but the manufacturing precision requirements increase to ensure proper shuttle ball seating
Solution Approach 1:
The manifold design incorporates asymmetric features with dedicated axial and perpendicular ports having different configurations. The annular valve seats are specifically shaped to work with the shuttle ball geometry, ensuring proper seating regardless of whether the connection is axial or perpendicular, thus accommodating installation flexibility while maintaining sealing integrity.
Solution Approach 2:
The manifold is designed with multi-functional capability to accept both axial and perpendicular high-pressure couplings through the same input/output chambers. The universal design of the annular valve seats and shuttle ball mechanism allows the system to function correctly regardless of connection orientation, eliminating the need for separate designs for different installation scenarios.
3Object-affected harmful factors
If the pin stop is positioned to confine the shuttle ball, then the harmful effect of entrainment is eliminated, but the ease of manufacture decreases due to additional machining operations
Solution Approach 1:
The pin stop feature is merged with the existing manifold structure, integrating the confinement function into the chamber design rather than adding a completely separate component. The stop is positioned to work in conjunction with the annular valve seat and shuttle ball, eliminating entrainment while utilizing the existing geometric features of the manifold to minimize additional manufacturing complexity.
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 improved manifold eliminates installation errors and ensures consistent performance by preventing shuttle ball entrainment, allowing for flexible coupling orientations and additional hydraulic input options, thus enhancing system reliability and versatility.
Implementation Method 1
a pin stop confines a shuttle ball within each of two input/output chambers
Implementation Method 2
responsive to supplied high pressure hydraulic input to a particular input/output chamber, the shuttle ball in the chamber seats upon the particular annular valve seat
Data Source
AI summary
An improved anti-cavitation hydraulic manifold for hydraulically coupling the hydraulic input and output of two, drive coupled, reversible hydraulic motors and a reversible source of hydraulic power for winding and unwinding systems is described wherein a stop confines a shuttle ball within each of two input/output (I/O) chambers receiving driving hydraulic input liquid from the reversible source of hydraulic power between an annular valve seat around a bypass passage communicating between the bases of the input/output (I/O) chambers and any ports penetrating into the respective input/output (I/O) chambers supplying high pressure or driving hydraulic input from the reversible source of hydraulic power where, responsive to supplied high pressure or driving hydraulic input to a particular I/O chamber, the shuttle ball in the chamber seats upon the particular annular valve seat translating a shuttle rod in the bypass passage unseating the particular shuttle ball from the annular valve seat around the passageway in the other I/O chamber.