Multi-Mode Compressor Pressure Switch for Quick-Charge Air Tool Use
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Solution Overview
Problem
Existing air tools often require continuous operation, which exceeds the capacity of standard retail format air compressors, leading to premature shutdown due to low air pressure.
Innovation Solution
A multi-mode air compressor switch that adds compressor output to existing tank capacity, enabling extended operational time of air tools by adjusting cut-in and cut-out pressures and allowing for quick charge modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If standard retail format air compressors are used, then device complexity is kept simple, but operational duration of air tools is insufficient
Solution Approach 1:
The patent implements a multi-mode pressure switch that can dynamically adjust between standard mode and quick charge mode. The switch changes its operational characteristics based on mode selection: in quick charge mode, it allows the compressor to cut in at higher pressures and cut out at lower pressures, effectively increasing compressor output and extending air tool operational time without requiring a larger tank or more complex system architecture
2Duration of action of moving object
If compressor cut-in pressure is increased to extend operational time, then air tool runs longer at higher pressure, but compressor cycles more frequently increasing wear
Solution Approach 1:
The multi-mode pressure switch dynamically adjusts pressure differential based on operating mode. In quick charge mode, it creates a smaller pressure differential between cut-in and cut-out pressures, allowing the compressor to run longer cycles at higher output levels rather than frequent short cycles, thereby extending air tool operational time while managing compressor wear through controlled cycling patterns
3Productivity
If quick charge mode is activated to extend operational time, then compressor output is increased, but pressure differential between cut-in and cut-out is reduced
Solution Approach 1:
The pressure switch implements dynamic pressure differential adjustment through mode selection. In quick charge mode, the switch is configured to allow cut-in at higher pressures (e.g., 100 psi) and cut-out at lower pressures (e.g., 85 psi), creating a smaller 15 psi differential. This increases effective compressor output and productivity by keeping the compressor running longer at higher pressures, while the reduced differential is acceptable because the mode is specifically designed for high-demand operational scenarios
Data Source
AI summary
A multi-mode air compressor pressure switch is disclosed. A first mode of operation of the switch has a first range that includes a first cut-out pressure and a first cut-in pressure. A second mode of operation of the switch has a second range that includes a second cut-out pressure and a second cut-in pressure. The second range is smaller than the first range. The second mode of operation adds compressor output over the first mode of operation to extend operable time of a tool that is connected to a compressor that is controlled by the first mode and the second mode.