The method includes establishing a first fluid gradient through a central passage, the central passage traversing through a first channel, the first channel defining at least one first hole, a housing covering the first channel, a first reservoir being defined between the housing and the first channel, a second reservoir defined between the first channel and the central passage. The method further includes establishing a second fluid gradient through the at least one first hole, through at least a first portion of the second reservoir, and through at least a second portion of a wick, a heater being in communication with the wick and the central passage.

An aerosol generating apparatus comprises: a power source; a load configured to have an electric resistance value that varies according to a temperature and atomize an aerosol source or heat a flavor source when supplied with power from the power source; a sensor configured to output a measurement value corresponding to a current value of a current flowing through the load; and a control unit configured to control power supply from the power source to the load and perform a determination operation for determining that there is an abnormality if the measurement value becomes smaller than a threshold value within a determination period, on a time axis, in a feeding sequence during which power is supplied from the power source to the load, wherein the control unit adjusts a length of the determination period based on the measurement value.

A switch control circuit and method for an electronic cigarette and the electronic cigarette are disclosed, the circuit includes a sensing circuit including a first sensor, a second sensor and a heating part disposed between the first sensor and the second sensor for conveying heat to the first sensor and the second sensor; the first sensor is for detecting a first voltage generated by change of temperatures when an air flow is flowing over the first sensor; the second sensor is configured for detecting a second voltage generated by change of temperatures when the air flow is flowing over the second sensor; and a controller coupled with a sensing circuit and stores a preset voltage threshold for receiving the first voltage and the second voltage, comparing a voltage differential of the first voltage and the second voltage with the preset voltage threshold, and outputting corresponding action signals based on comparison.

A vaporizer includes: a first input end and a second input end; a heating element arranged between the first input end and the second input end; and a level exchange module connecting the first input end and the second input end, so as to allow the vaporizer to be insertable into a battery rod rightly or reversely. One of the first input end or the second input end of the vaporizer forms a power supply voltage input end of the vaporizer, and an other end of the vaporizer forms a ground voltage input end of the vaporizer.

The present invention relates to a heater for a vehicle system for injecting anaqueous solution in an air intake line upstream of a combustion chamber of aninternal combustion engine, or in the combustion chamber of the internal combustion engine, said heater comprising at least one flexible part which comprises at least one metallic resistive track embedded in an insulating material, said insulating material comprising at least one antimicrobial compound and/or being coated by at least one layer containing at least one antimicrobial compound. The invention relates also to a vehicle system for injecting an aqueous solution in an air intake line upstream of a combustion chamber of an internal combustion engine, or in the combustion chamber of the internal combustion engine comprising said heater.

An improved liquid vaporization and conditioning system, and associated method, for efficiently vaporizing a liquid sample for accurately determining the constituent components thereof providing enhanced flow rate, pressure and thermal control, the improvement including a combination of a resistance temperature detector, a sweeping bend to, an in-line thermal break, a flow buffering input manifold, enhanced multi-path heater vaporizer construction with four heater units, a vaporizer output mixing manifold and control elements providing a capability for partial shutdown in the event of compromised heating or flow anomalies without risk of flow loss/volume capacity beyond a permissible threshold and an improved, modular heat vaporizer enclosure.

An aerosol-generating device includes an electrical power supply, a cavity structure configured to receive an aerosol-generating article, and a plurality of semiconductor heaters within the cavity structure. Each of the plurality of semiconductor heaters includes a substrate layer and a heating layer on the substrate layer. The heating layer is a continuous layer. The aerosol-generating device includes a controller configured to control a supply of electrical power from the electrical power supply to each of the plurality of semiconductor heaters.

An aerosol delivery device is provided that includes a voltage regulator circuit, switching arrangement and processing circuitry. The voltage regulator circuit is coupled between a power source and a load including an aerosol production component, and configured to provide an output voltage in which voltage provided by the power source is regulated. The switching arrangement includes a first switch with first and second inputs coupled to respectively the voltage regulator circuit and ground, and an output coupled to the second switch; and a second switch coupled to and between the voltage regulator circuit and the load. The processing circuitry is configured to output a signal to cause the first switch to switchably connect the output voltage to the second switch and ground, and thereby cause the second switch to switchably connect and disconnect the output voltage to the aerosol production component to power the aerosol production component to produce aerosol.

An electrically operated aerosol-generating system may include a reservoir configured to hold a liquid aerosol-forming substrate, an atomizer assembly configured to vaporize the liquid aerosol-forming substrate to form an aerosol, and a pump configured to convey the liquid aerosol-forming substrate from the reservoir to the atomizer assembly. The reservoir may include a substantially rigid housing and an inlet valve that is configured to allow air into the reservoir based on a pressure difference between an interior of the housing and an exterior of the housing exceeding a threshold pressure difference. This improves the reliability and efficiency of delivery of liquid to the wick. The system may further include a robust reservoir that is configured to at least partially mitigate liquid leakage between the reservoir interior and the reservoir exterior.

An aerosol vaporization device includes: a trigger signal receiving unit for receiving a trigger signal; a detection unit for detecting an operating parameter, the operating parameter including at least one measured parameter of the aerosol vaporization device; a control unit for obtaining the operating parameter fed back by the detection unit when receiving the trigger signal transmitted by the trigger signal receiving unit and outputting a pulse signal after encoding the operating parameter; and a light-emitting diode (LED) unit for modulating a display level according to the pulse signal transmitted by the control unit and output a pulse display level, the display level representing an operating state of the aerosol vaporization device, the pulse display level being provided to a test device for detection and to obtain the operating parameter according to the pulse display level.