| 摘要 |
An apparatus and method for applying an active ingredient as an aerosol. A transducer (22) for creating an aerosol includes a propellant inlet (96) and a chamber defined by at least one chamber wall (128) confluent with the propellant inlet. A bluff body (112) is provided for creating at least one vortex (152) in the chamber when the propellant enters the propellant inlet in a supersonic flow condition. An orifice (118, 146) spaced apart from the bluff body and separated therefrom by the chamber wall is provided for creating an exiting vortex (154). |
