Air Compression Pressure Detection for Back Pressure-Free Inflation
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Solution Overview
Problem
Conventional air compressors face challenges in accurately detecting the internal pressure of aerated objects due to back pressure phenomena at the nozzle, leading to incomplete aeration and potential damage, as the pressure detector installed adjacent to the output port does not accurately reflect the true internal pressure.
Innovation Solution
An air compression system with a detection device and pressure transducers, where the first pressure transducer measures air pressure at the output port and the second pressure transducer measures internal pressure in the channel, allowing for accurate estimation and comparison to ensure air is pumped in a linear manner compatible with the aerated object's inlet, thereby preventing back pressure and ensuring proper aeration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pressure detector is installed adjacent to the output port to simplify the system structure, then the device complexity is reduced, but the measurement precision deteriorates because it cannot accurately reflect the true internal pressure of the aerated object
Solution Approach 1:
The patent introduces a detection device with a channel and conduit as an intermediary between the air compressor output and the aerated object. The second pressure transducer measures pressure within this intermediary channel, which is then used to estimate the true internal pressure of the aerated object, resolving the contradiction between simple installation and accurate measurement.
Solution Approach 2:
The patent replaces the direct mechanical pressure detection at the output port with an electronic pressure measurement system. Pressure transducers convert pressure into electrical signals that are processed by control circuits, allowing accurate remote measurement without direct mechanical contact at the critical measurement point.
2Measurement precision
If the pressure detector is installed around the nozzle to reduce pressure difference, then the measurement precision improves, but object-generated harmful factors worsen due to back pressure phenomenon causing abrupt pressure surge
Solution Approach 1:
The detection device with its channel and conduit acts as an intermediary that decouples the measurement system from the high-pressure nozzle area. The second pressure transducer measures pressure in the channel away from the nozzle, eliminating back pressure effects while maintaining measurement accuracy through electronic signal transmission to the control circuit.
Solution Approach 2:
The patent segments the pressure measurement function from the air delivery function. The detection device with channel and conduit separates the measurement path from the high-pressure air flow path, allowing accurate pressure sensing without exposure to back pressure surges at the nozzle.
3Productivity
If large-volume air is pumped into the aerated object to ensure sufficient aeration, then the productivity is improved, but object-generated harmful factors worsen due to back pressure causing inaccurate pressure detection
Solution Approach 1:
The patent implements a feedback control system where the second pressure transducer continuously monitors channel pressure and transmits signals to the first control circuit. The control circuit compares this feedback with the desired pressure and adjusts the air compressor operation accordingly, enabling efficient aeration without back pressure-induced measurement errors.
Solution Approach 2:
The detection device serves as an intermediary that enables safe high-volume air delivery. By measuring pressure in the channel away from the nozzle, it allows the system to pump large volumes of air efficiently while avoiding the back pressure measurement problems that would otherwise limit productivity.
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 system accurately measures and maintains the desired internal pressure of the aerated object, preventing over- or under-aeration, thus enhancing the performance and safety of the aeration process.
Implementation Method 1
a first pressure transducer is housed inside the air compressor adjacent to the output port and detects an air pressure from the output port
Implementation Method 2
the second pressure transducer is positioned between the first port and the second port detecting an air pressure in the channel
Data Source
AI summary
The air compression system includes an air compressor and a detection device. A first pressure transducer is provided to measure an air pressure at an output port of the air compressor. A second pressure transducer in the detection device measures an air pressure in a channel of the detection device. A conduit in the detection device regulates an air flow to be compatible with that flowing through the inlet of the aerated object. The measurements from the first pressure transducer and the second pressure transducer are transmitted to and compared by a first control circuit of the air compressor, and an internal pressure of the aerated object is estimated. When the estimated internal pressure of the aerated object is smaller than a desired pressure, the air compressor pumps air into the object through the conduit of the detection device in a linear manner.