Patent attributes
An aerosol-generating apparatus includes a mouthpiece, an aerosolizing thermal reactor, and an air preheating passage. The aerosolizing thermal reactor has an air inlet upstream of an aerosol outlet, and includes an aerosolizable substance chamber and a thermal distribution casing. The thermal distribution casing surrounds the aerosolizable substance chamber and includes a laminate material with an at least three-layer construction including a metal middle layer between a metal outer layer and a metal inner layer. The thermal conductivity of the metal inner layer is at least double that of each of the metal outer and inner layers. The air preheating passage is located downstream of the air inlet and upstream of the aerosolizable substance chamber, and surrounds the aerosolizable substance chamber. The air preheating passage is defined by an air gap between the chamber outer wall and the metal inner layer.