Compressed Air Valve Bypass for Rapid Pressure Buildup
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Solution Overview
Problem
Commercial vehicle pneumatic compressed air systems struggle to efficiently utilize short overrun phases to generate and store energy, as existing systems take a long time to build up pressure above the idle phase, leading to energy loss during short phases.
Innovation Solution
An electronic compressed air treatment device with a system of valves (first, second, third, and fourth) that automatically switches from an idle phase to a delivery phase, allowing air to be routed back into the delivery device to quickly build up pressure, using a connecting line with a throttle valve and pressure sensor to manage air flow and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the air compressor switches to energy-saving mode by connecting intake and compression chambers, then power consumption is reduced, but the pressure in the delivery line rises slowly and cannot be built up quickly during short overrun phases
Solution Approach 1:
A bypass channel with bypass valve is introduced as an intermediary path between the compression chamber and delivery line. This bypass channel allows compressed air to flow directly to the delivery line without passing through the slow pressure buildup process, enabling rapid pressure restoration during short overrun phases while maintaining energy-saving mode operation
Solution Approach 2:
The bypass valve is activated in advance during detected overrun phases to pre-establish a direct pressure supply path. This preliminary action ensures that when the overrun phase occurs, the delivery line can be pressurized immediately through the bypass channel rather than waiting for the main compression cycle to build pressure
2Reliability
If the drain valve vents compressed air during energy-saving mode, then pressure control is maintained, but energy is lost during short overrun phases when pressure cannot be stored
Solution Approach 1:
The bypass valve operates dynamically based on real-time detection of overrun phases. During detected overrun phases, the bypass valve opens to capture and store compressed air in the delivery line. When overrun phases are not detected, the system returns to normal energy-saving operation with drain valve control, optimizing both energy capture and pressure control under different operating conditions
3Stability of the object's composition
If the system waits for pressure to rise above system pressure before pumping air back into the compressed air system, then pressure stability is maintained, but short overrun phases cannot be utilized for energy storage
Solution Approach 1:
The air compressor system is segmented into two independent pressure supply paths: the main compression chamber following traditional pressure control, and the bypass channel providing rapid pressure supplementation. This segmentation allows the bypass channel to independently capture energy during short overrun phases without being constrained by the main system's pressure stability requirements
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 rapid pressure buildup in the compressed air system during short overrun phases, allowing for quick energy storage and efficient transition from idle to full delivery mode, even during phases as short as less than 5 seconds.
Implementation Method 1
air compressors are typically installed today, which can be switched in any way from delivery mode (work mode) to energy-saving mode (idle mode) with reduced delivery capacity
Implementation Method 2
The second valve can be switched from a blocked state to an open state from the idling phase and expediently always and only back into a blocked state when z. B. by means of a pressure sensor, a pressure increase in a line section between the second valve and the compressed air system is detected
Data Source
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AI summary
The invention relates to an operating method for a suitably electronic compressed air preparation device 100 for connection, on the one hand, to an air compressor device 200 which can be automatically switched to an idle state by means of compressed air from the compressed air preparation device 100, and on the other hand, to a compressed air system 300. The compressed air preparation device 100 comprises a conveying device FE, which can be connected to the air compressor device 200, a first valve V1, a second valve V2, a third valve V3, and a fourth valve V4. From an idle phase to a conveying phase, the first valve V1 and the third valve V3 are switched to a closed state "0", and the second valve V2 is switched to an open state "1", so that air is fed back to the conveying device FE via the compressed air system 300 through the second valve V2 and bypassing the fourth valve V4.The invention also relates to a compressed air preparation device 100, which is configured to carry out the operating method according to the invention.