Aerosol generating system with heated mixing chamber

An aerosol-generating system, comprising:

• a cartridge for the aerosol-generating system, the cartridge comprising:
• a first compartment having a first air inlet and a first air outlet, the first air inlet being upstream of the first air outlet, the first compartment containing a nicotine source,
• a second compartment having a second air inlet and a second air outlet, the second air inlet being upstream of the second air outlet, the second compartment containing an acid source,
• a mixing chamber configured for mixing nicotine from the nicotine source and acid from the acid source with an air flow to form an aerosol, the mixing chamber being downstream of both the first air outlet of the first compartment and the second air outlet of the second compartment, and
• a heating element configured to heat the mixing chamber;
• and
• an aerosol-generating device comprising a housing and a power supply, the power supply being configured to supply power to the heating element,
• wherein at least a portion of the cartridge is configured to engage the housing, and at least a portion of the heating element is neither upstream nor downstream of the mixing chamber,
• wherein a first portion of the heating element is disposed adjacent to the first compartment or the second compartment, or both the first compartment and the second compartment, and a second portion of the heating element is disposed adjacent to, or within, the mixing chamber.

A cartridge for an aerosol-generating system, the cartridge comprising:

• a first compartment containing a nicotine source;
• a second compartment containing an acid source;
• a mixing chamber configured for mixing nicotine from the nicotine source and acid from the acid source with an air flow to form an aerosol;
• and
• a heating element configured to heat the mixing chamber,
• wherein at least a portion of the heating element is configured to heat the mixing chamber to a temperature of between 60 degrees Centigrade and 80 degrees Centigrade,
• wherein a first portion of the heating element is disposed adjacent to the first compartment or the second compartment, or both the first compartment and the second compartment, and a second portion of the heating element is disposed adjacent to, or within, the mixing chamber.

An aerosol-generating system, comprising:

• a cartridge for use in the aerosol-generating system, the cartridge comprising:
• a first compartment containing a nicotine source,
• a second compartment containing an acid source, and
• a mixing chamber configured for mixing nicotine from the nicotine source and acid from the acid source with an air flow to form an aerosol;
• and
• an aerosol-generating device comprising a heating element and a housing,
• wherein at least a portion of the cartridge is configured to engage the housing, and at least a portion of the heating element is configured to beat the mixing chamber to a temperature of between 60 degrees Centigrade and 80 degrees Centigrade,
• wherein a first portion of the heating element is disposed adjacent to the first compartment or the second compartment, or both the first compartment and the second compartment, and a second portion of the heating element is disposed adjacent to, or within the mixing chamber.

A method for aerosol generation in an aerosol-generating system,

• the aerosol-generating system comprising:
• a cartridge for the aerosol-generating system, the cartridge comprising:
• a first compartment containing a nicotine source,
• a second compartment containing an acid source,
• a mixing chamber configured for mixing nicotine from the nicotine source and acid from the acid source with an air flow to form an aerosol, and
• a heater;
• and
• an aerosol-generating device comprising a housing, wherein the housing is configured to engage at least a portion of the cartridge,
• wherein the heater comprises a first portion and a second portion or wherein the heater comprises a first heating element and a second beating element;
• and
• the method comprising:
• supplying power to the heater such that the first portion of the heater heats the first compartment or the second compartment, or both the first compartment and the second compartment, and such that the second portion of the heater heats the mixing chamber, or
• supplying power
• to the first heating element such that the first heating element heats the first compartment or the second compartment, or both the first compartment and the second compartment, and
• supplying power to the second heating element such that the second heating element heats the mixing chamber.