Electronically Controlled Discharge Nozzles for Adaptive Fire Suppression

The patent applies PWM (pulse width modulation) technology to enable dynamic adjustment of nozzle flow rates. The controller modulates the duty cycle of PWM signals to electronically control variable flow rate nozzles, allowing real-time adaptation to changing fire conditions without mechanical reconfiguration. This resolves the contradiction by introducing dynamic control capability while maintaining relative system simplicity through electronic rather than mechanical complexity.

The system incorporates sensor feedback loops where temperature and smoke sensors continuously monitor fire conditions and feed this information to the controller. The controller adjusts nozzle flow rates based on real-time sensor data, creating a closed-loop feedback system. This enables adaptive response to actual fire conditions while distributing control complexity across multiple sensors and a centralized controller rather than requiring complex individual nozzle mechanisms.

The patent implements periodic pulsed discharge of fire suppressant agent through PWM control. Instead of continuous high-flow discharge, the system uses intermittent pulses with variable duty cycles. During initial fire growth stages, higher duty cycles provide rapid suppression, while during extinction phases, lower duty cycles reduce agent consumption. This periodic action pattern resolves the contradiction by providing fast response when needed while minimizing overall substance loss through intelligent timing control.

The system dynamically adjusts flow rates based on real-time fire condition assessment. The controller monitors sensor feedback and continuously modulates nozzle discharge rates to match actual fire needs. When fire intensity increases, flow rate increases accordingly; when fire is suppressed, flow rate decreases. This dynamic adaptation prevents excessive agent consumption while maintaining adequate suppression capability throughout the fire suppression process.

The system uses periodic pulsed discharge patterns to maintain fire suppression coverage without continuous agent consumption. The PWM control creates intermittent discharge cycles that provide sufficient coverage during critical phases while allowing agent reserves to be conserved. The periodic action maintains reliability by ensuring agent is still available when re-ignition occurs, as the system can reactivate nozzles with remaining agent supply.

The system maintains continuous fire suppression capability through strategic pulsed discharge rather than continuous discharge. The periodic action ensures the fire suppression agent remains available for extended periods, creating a continuous protective effect that can respond to re-ignition events. This approach balances the need for sustained coverage with the need to preserve agent supply duration.

The patent divides the protected area into multiple zones with dedicated nozzles for each zone. The controller manages independent PWM control for each zone's nozzles, allowing precise targeting of fire conditions in specific locations. This segmentation enables high precision fire suppression by directing agent flow specifically where needed rather than using uniform discharge across multiple zones, while keeping individual nozzle control relatively simple.

The system implements local quality control by assigning specific nozzles to specific zones with tailored discharge characteristics. Each zone can have its own flow rate, pulse width, and timing parameters optimized for local fire conditions and appliance types. This localized optimization provides precise fire suppression targeting while maintaining simple nozzle designs, as each nozzle is independently controlled rather than requiring complex mechanical adjustment mechanisms.