SUPPLY OF CONTROLLED, MEDIUM-PRESSURE CARBON DIOXIDE GAS IN SIMPLE, CONVENIENT DISPOSABLE PACKAGING

摘要

A CO2 gas generator for an aerosol device is located in a housing and chemically generates CO2 from a chemical reaction between two reagents contained within a common container. The reagents are located in different chambers of the container with a CO2 accumulation region being included in one of the chambers. A reference pressure source of a predetermined pressure forces the two reagents into contact with each other when the pressure of gas in the CO2 accumulation region is less than the predetermined pressure whereupon CO2 is generated in one of the chambers. An output conduit in fluid communication with the CO2 accumulation region is provided to withdraw the generated gas from the generator. As the CO2 is withdrawn, the gas pressure drops permitting more mixing of the reagents. When the CO2 pressure becomes equal to or higher than the predetermined pressure applied by the reference pressure source, the reagents become separated again and gas generation ceases.