Replaceable cartridge with capillary and air inlet

By introducing a capillary tube and an air inlet into the replaceable cylinder, the problems of uneven liquid consumption, harmful component generation, and leakage in the aerosol generation device are solved, and stable liquid transmission and uniform consumption are achieved.

CN122249128APending Publication Date: 2026-06-19PHILIP MORRIS PRODUCTS SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing replaceable cylinders in aerosol generation devices suffer from problems such as uneven consumption of liquid during aerosol formation, generation of harmful components, unstable liquid transport, and leakage.

Method used

A replaceable cartridge is designed, comprising a liquid storage section, a capillary tube, and an air inlet. The capillary tube is in fluid communication with the liquid storage section and the liquid outlet. The air inlet protrudes into the interior of the liquid storage section, allowing air to enter and replace the consumed liquid, reducing low liquid pressure and leakage.

Benefits of technology

It achieves uniform consumption of aerosol-formed liquid, reduces the generation of harmful components, ensures the stability and continuity of liquid transmission, avoids liquid leakage, and is not affected by cylinder orientation.

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Abstract

This invention relates to a replaceable cartridge configured for detachable connection to an aerosol generating apparatus, the replaceable cartridge comprising: a liquid storage section for storing an aerosol-forming liquid, the liquid storage section including a liquid outlet for guiding the aerosol-forming liquid out of the liquid storage section; a capillary tube in fluid communication with the liquid storage section and the liquid outlet; and an air inlet configured to allow air to enter the liquid storage section, wherein the air inlet protrudes into the interior of the liquid storage section. This replaceable cartridge reduces or prevents leakage of the aerosol-forming liquid from the cartridge through the air inlet.
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