Dual Liquid Paths for Portable High-Pressure Calibration
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Solution Overview
Problem
Existing liquid pressure calibration apparatuses become cumbersome and inconvenient for transportation due to the need for larger pressure chambers and longer screws to achieve higher liquid pressures, especially when calibrating high-pressure instruments.
Innovation Solution
A liquid pressure calibration apparatus with a first and second liquid path arranged in parallel, where the controller determines the target pressure and selectively controls which path supplies pressure based on a switching pressure, allowing for efficient pressure output within a limited volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the apparatus is equipped with a larger pressure chamber and longer screw to provide higher liquid pressure, then the liquid pressure output capability is improved, but the apparatus size increases making it inconvenient for movement and transportation
Solution Approach 1:
The patent divides the pressure output function into two separate liquid paths: a first liquid path for high-pressure output and a second liquid path for low-pressure output. Each path has its own pressure chamber and screw mechanism optimized for its specific pressure range. This segmentation allows the apparatus to achieve high pressure capability without requiring a single oversized pressure chamber, thus reducing overall apparatus volume while maintaining portability.
2Power
If the apparatus is equipped with a higher power motor to drive the longer screw for high pressure, then the liquid pressure output capability is improved, but the apparatus weight increases affecting portability
Solution Approach 1:
The patent applies local quality by designing each liquid path with components specifically optimized for its pressure range. The first liquid path uses a shorter screw and smaller pressure chamber optimized for high-pressure generation, while the second liquid path uses a longer screw and larger pressure chamber optimized for low-pressure generation. This localized optimization allows each motor to be sized appropriately for its specific task, reducing the total weight compared to using a single high-power motor system for all pressure ranges.
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 enhances the portability of the liquid pressure calibration apparatus by allowing pressure output on demand within a compact volume, reducing the weight and volume of the apparatus, and enabling efficient calibration of high-pressure instruments.
Implementation Method 1
a first liquid path 200 having an input end and an output end, wherein the input end of the first liquid path is connected to the liquid pressure inlet port, and the output end of the first liquid path is connected to the liquid pressure outlet port; a second liquid path 300 having an input end and an output end arranged in parallel with the first liquid path
Data Source
AI summary
A liquid pressure calibration apparatus is disclosed, wherein a first liquid path (200) and a second liquid path (300) with different pressure output ranges are arranged in parallel between a liquid pressure inlet port (A) and a liquid pressure output port (B) of the liquid pressure calibration apparatus, and the pressure output range of the first liquid path (200) is continuous with the pressure output range of the second liquid path (300). A target pressure to be output is compared with a switching pressure, and the first liquid path (200) or the second liquid path (300) is selected to supply pressure to the liquid pressure output port (B) based on the comparison result, and the target pressure is output.