Adaptive Radial Seal Regulator for Tolerance-Resistant Air Sealing
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Solution Overview
Problem
Traditional cylindrical regulators face challenges with rotation and leakage due to manufacturing tolerances and part fitting issues, requiring a tight radial fit that is difficult to achieve and maintain.
Innovation Solution
Incorporation of a spring-loaded member that adapts to out-of-round conditions and provides a looser fit between the regulator and housing, utilizing a radial seal system with orifices and central cavities to accommodate manufacturing variations while maintaining a high air seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tight radial fit is used between regulator and housing, then air seal is improved, but rotation difficulty and manufacturing complexity increase
Solution Approach 1:
The regulator body is designed with radial flexibility, allowing it to dynamically adjust its radial dimension. The regulator can flex radially outward during assembly to snap into the housing, then maintain a tight radial seal during operation without preventing rotation. This dynamic behavior resolves the contradiction by enabling both tight sealing and ease of rotation.
Solution Approach 2:
The regulator employs variable radial flexibility through material selection and geometric design. The radial flexibility parameter is optimized to provide sufficient compliance for assembly while maintaining adequate seal tightness during operation. This parameter change allows the system to achieve both good air seal and easy rotation.
2Reliability
If a tight radial fit is used between regulator and housing, then air seal is improved, but manufacturing precision requirements increase
Solution Approach 1:
The regulator utilizes radial flexibility as a compensating parameter that allows tolerance accumulation. By designing the regulator with controlled radial compliance, the system can accommodate larger manufacturing tolerances in the radial fit while still achieving adequate sealing performance, thereby reducing manufacturing precision requirements.
Solution Approach 2:
The dynamic radial adjustment capability allows the regulator to compensate for manufacturing variations. During assembly, the flexible regulator can deform to accommodate tolerance variations, ensuring consistent sealing performance across different manufactured parts without requiring tight tolerance control.
3Ease of manufacture
If radial flexibility is increased to accommodate tolerances, then ease of manufacture is improved, but sealing performance may worsen
Solution Approach 1:
The regulator design optimizes the radial flexibility parameter within a specific range that simultaneously achieves both tolerance accommodation and adequate sealing. Through material selection and geometric design, the radial flexibility is tuned to provide sufficient compliance for manufacturing variations while maintaining the necessary seal integrity.
Solution Approach 2:
The regulator employs partial radial flexibility - enough to accommodate manufacturing tolerances and assembly variations, but not so much that sealing performance is compromised. This balanced approach achieves both ease of manufacture and reliable sealing without excessive flexibility.
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 solution enables efficient assembly, reduces leakage, and maintains a high level of air seal, accommodating greater tolerances and reducing component costs by allowing for a more relaxed fit without compromising sealing performance.
Implementation Method 1
Incorporation of a spring-loaded member that adapts to out-of-round conditions and provides a looser fit between the regulator and housing
Data Source
AI summary
Improved radial pneumatic regulator systems, devices and methods are described herein. Embodiments may comprise regulators with adaptive radial seals to prevent air leakage, provide increased air supply use efficiency, and facilitate more efficient manufacture and assembly of systems. The regulator systems may be used in applications such as for pneumatic power tools.