Gas Spring Pressure Indicator with Movable Visual Feedback
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Solution Overview
Problem
Current methods for evaluating the pressurization of gas springs, such as using pressure gauges or load cells, are cumbersome and require operators to stop operations to check pressure levels, especially when pressure falls below a predetermined minimum due to wear or degradation, lacking a convenient and reliable in-situ indication.
Innovation Solution
A pressure indicating device integrated into the gas spring housing, featuring a movable indicator that projects visually when pressure is above a minimum threshold and retracts when pressure falls below, providing a go/no-go indication without the need for external tools or operations disruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external pressure gauges or load cells are used to evaluate gas spring pressurization, then pressure measurement is achieved, but operational efficiency deteriorates due to required operational stops and cumbersome procedures
Solution Approach 1:
The pressure indicating device is integrated directly into the gas spring housing, merging the pressure measurement function with the gas spring structure itself. This eliminates the need for separate external measurement devices and allows continuous monitoring without operational interruption.
Solution Approach 2:
The gas spring performs self-monitoring of its pressurization status through the integrated indicator device. The system automatically indicates when pressure falls below the minimum threshold without requiring external intervention or operational stops for checking.
2Reliability
If pressure monitoring is implemented to detect minimum pressure thresholds, then operational reliability is improved, but device complexity increases due to additional components
Solution Approach 1:
The pressure indication function is localized to a specific passage within the gas spring housing rather than requiring a complete pressure monitoring system. The indicator device is confined to a localized area and only performs the specific function of indicating minimum pressure threshold violation.
Solution Approach 2:
The indicator device uses simple, inexpensive mechanical components including a movable indicator, spring, and passage structure. These components are basic mechanical elements that are easy to manufacture and replace if needed.
3Device complexity
If manual pressure evaluation methods are used, then device simplicity is maintained, but information availability deteriorates due to lack of continuous monitoring
Solution Approach 1:
The movable indicator provides continuous visual feedback on the pressurization status of the gas spring. When pressure remains above the minimum threshold, the indicator stays in one position; when pressure drops below the threshold, the indicator moves to signal the condition, providing real-time information without complex electronics.
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
Enables immediate, visual detection of adequate pressurization status within the gas spring, enhancing operational efficiency by allowing continuous monitoring and prompt action when pressure drops, thus preventing unnecessary stops and facilitating maintenance.
Implementation Method 1
a spring to retract the indicator when pressure in the gas passage is below the predetermined minimum pressure
Implementation Method 2
having an end in fluid communication with the gas passage and having an indicator end projectable out of a portion of the case when pressure in the gas passage is at least a predetermined minimum pressure
Data Source
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Figure 3
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AI summary
A pressure indicating device includes a case including a gas passage, and a movable indicator carried by the case. The indicator has an end in fluid communication with the gas passage and an indicator end projectable out of a portion of the case when pressure in the gas passage is at least a predetermined minimum pressure. A spring may retract the indicator when pressure in the gas passage is below the predetermined minimum pressure.