Phase Change Heat Capacitor for Capillary Aerosol Generators

The patent applies preliminary action by pre-heating a thermal mass (such as a metal block or phase change material) to a high temperature before aerosol generation is needed. This stored thermal energy then sustains aerosol production without requiring continuous external heating, enabling portable operation. The thermal mass is charged with energy in advance and subsequently provides sustained heat to the capillary tube during aerosol generation.

The patent utilizes phase change materials that undergo parameter changes (phase transitions) at specific temperatures. These materials absorb and release large amounts of latent heat during phase transitions, providing sustained thermal energy for aerosol generation. The phase change temperature is selected to match the volatilization temperature of the liquid material, ensuring efficient heat transfer and prolonged aerosol output without continuous energy input.

The patent applies local quality by concentrating thermal energy storage in a specific location (the thermal mass positioned around or near the capillary tube). This localized thermal reservoir provides intense heating exactly where needed (at the capillary tube) while the rest of the device remains lightweight and portable. The heating wire wrapped around the thermal mass creates a focused thermal zone that maximizes aerosol generation efficiency without requiring system-wide high power.

The patent employs composite material systems combining a thermal mass material (such as phase change materials or high-specific-heat metals) with a capillary tube and liquid reservoir. This composite structure integrates thermal energy storage, heat transfer, and aerosol generation functions into a unified portable device. The phase change material component provides high energy density while maintaining a compact form factor, enabling both portability and sustained aerosol production.