Liquid release assembly comprising a liquid suspension portion

Abstract

This invention relates to a liquid release assembly for an aerosol generation apparatus. The liquid release assembly includes a liquid channel comprising a liquid suspension portion. The liquid suspension portion includes a discharge orifice and is configured to define a heating zone. The liquid release assembly includes a regulating channel defining a ventilation opening configured to be fluidly connected to the liquid channel. The regulating channel and the liquid suspension portion are configured to suspend the liquid in the liquid suspension portion. An air-liquid interface of the suspended liquid is disposed in the heating zone of the liquid suspension portion.

Description

Technical Field

[0001] This invention relates to a liquid release component for an aerosol generation apparatus. It also relates to an aerosol generation apparatus, an aerosol generation system, and a method for generating aerosols using an aerosol generation apparatus including a liquid release component. Background Technology

[0002] An aerosol generating apparatus for generating inhalable vapors is known. Such an apparatus heats an aerosol forming matrix to a temperature that causes one or more components of the aerosol forming matrix to volatilize without burning the aerosol forming matrix. The liquid aerosol forming matrix can be disposed in a liquid reservoir of a cylinder. The cylinder can be inserted into the aerosol generating apparatus. Liquid from the liquid reservoir can be transferred to a core. Heating elements can be arranged to heat the aerosol forming matrix of the core. Summary of the Invention

[0003] The following are desired solutions: An aerosol generation system with reduced risk of liquid leakage; an aerosol generation system with improved control over the delivery of liquid from the liquid reservoir to the heating element; an aerosol generation system with reduced risk of negative pressure buildup when the liquid reservoir is depleted; a liquid release assembly with self-regulating liquid inflow; a more compact heating device; an aerosol generation system providing improved handling and user comfort; an aerosol generation system providing an improved user experience; an aerosol generation system with improved energy efficiency; an aerosol generation system with improved control over the liquid supply to the heating element; an aerosol generation system reducing or avoiding the risk of dry suction; an aerosol generation system reducing or avoiding the risk of leakage at electrical contacts; and an aerosol generation system avoiding the risk of core degradation.

[0004] According to embodiments of the present invention, a liquid release assembly for an aerosol generation apparatus is provided. The liquid release assembly may include a liquid channel comprising a liquid suspension portion. The liquid suspension portion may include a discharge orifice and may be configured to define a heating zone. The liquid release assembly may include a regulating channel defining a ventilation opening configured to be fluidly connected to the liquid channel. The regulating channel and the liquid suspension portion may be configured to suspend liquid in the liquid suspension portion. An air-liquid interface of the suspended liquid may be disposed in the heating zone of the liquid suspension portion.

[0005] According to an embodiment of the present invention, a liquid release assembly for an aerosol generation apparatus is provided. The liquid release assembly includes a liquid channel, the liquid channel including a liquid suspension portion. The liquid suspension portion includes a discharge orifice and is configured to define a heating zone. The liquid release assembly includes a regulating channel defining a ventilation opening configured to be fluidly connected to the liquid channel. The regulating channel and the liquid suspension portion are configured to suspend liquid in the liquid suspension portion. An air-liquid interface of the suspended liquid is disposed in the heating zone of the liquid suspension portion.

[0006] Aerosol generation systems can reduce the risk of liquid leakage. Liquid release components can reduce the risk of liquid leakage. Aerosol generation systems provide improved control over the delivery of liquid from the liquid reservoir to the heating element. Aerosol generation systems can reduce the risk of negative pressure buildup when the liquid reservoir is depleted. Aerosol generation systems can provide liquid release components with self-regulating liquid inflow. Aerosol generation systems can provide more compact heating devices. Aerosol generation systems can provide improved handling and user comfort. Aerosol generation systems can provide an improved user experience. Aerosol generation systems can provide improved energy efficiency. Aerosol generation systems can provide improved control over the liquid supply to the heating element. Aerosol generation systems can reduce or eliminate dry suction. Aerosol generation systems can reduce or eliminate the risk of leakage at electrical contacts. Aerosol generation systems can avoid the risk of core degradation.

[0007] By providing a liquid suspension section, the risk of leakage can be reduced or avoided. By providing a regulating channel, the risk of leakage can be reduced or avoided. By providing a liquid suspension section, the risk of negative pressure buildup in the liquid reservoir can be reduced or avoided. By providing a regulating channel, the risk of negative pressure buildup in the liquid reservoir can be reduced or avoided.

[0008] The liquid release component can be configured to self-adjust the liquid level suspended in the liquid suspension section. The liquid release component can be configured to self-adjust the position of the air-liquid interface in the liquid suspension section. The liquid release component can be configured to maintain the liquid at a fixed position in the liquid suspension section. The liquid release component can be configured to maintain the air-liquid interface in the liquid suspension section at a fixed position in the liquid suspension section. The liquid release component can be configured to adjust the liquid level suspended in the liquid suspension section to a predetermined level. The liquid release component can be configured to adjust the position of the air-liquid interface in the liquid suspension section to a predetermined position.

[0009] The liquid release assembly can be configured to bias the liquid level suspended in the liquid suspension section towards a predetermined liquid level. The liquid suspension section can be configured to bias the liquid level suspended in the liquid suspension section towards a predetermined liquid level. The regulating channel can be configured to bias the liquid level suspended in the liquid suspension section towards a predetermined liquid level. The liquid suspension section and the regulating channel can be configured to bias the liquid level suspended in the liquid suspension section towards a predetermined liquid level. The discharge orifice can be configured to bias the liquid level suspended in the liquid suspension section towards a predetermined liquid level. The vent opening can be configured to bias the liquid level suspended in the liquid suspension section towards a predetermined liquid level. The discharge orifice and the vent opening can be configured to bias the liquid level suspended in the liquid suspension section towards a predetermined liquid level.

[0010] The liquid release assembly can be configured to bias the air-liquid interface of the liquid suspended in the liquid suspension section toward a predetermined position. The liquid suspension section can be configured to bias the air-liquid interface of the liquid suspended in the liquid suspension section toward a predetermined position. The regulating channel can be configured to bias the air-liquid interface of the liquid suspended in the liquid suspension section toward a predetermined position. The liquid suspension section and the regulating channel can be configured to bias the air-liquid interface of the liquid suspended in the liquid suspension section toward a predetermined position. The discharge orifice can be configured to bias the air-liquid interface of the liquid suspended in the liquid suspension section toward a predetermined position. The ventilation opening can be configured to bias the air-liquid interface of the liquid suspended in the liquid suspension section toward a predetermined position. The discharge orifice and the ventilation opening can be configured to bias the air-liquid interface of the liquid suspended in the liquid suspension section toward a predetermined position.

[0011] The predetermined liquid level of the liquid suspended in the liquid suspension section can be determined by the configuration of the liquid release component. The predetermined position of the air-liquid interface of the liquid suspended in the liquid suspension section can be determined by the configuration of the liquid release component. The predetermined liquid level of the liquid suspended in the liquid suspension section can be determined by the diameter of the liquid suspension section. The predetermined position of the air-liquid interface of the liquid suspended in the liquid suspension section can be determined by the diameter of the regulating channel.

[0012] The liquid release assembly can be configured to adjust the liquid level suspended in the liquid suspension section. The liquid release assembly can also be configured to adjust the position of the air-liquid interface of the liquid suspended in the liquid suspension section.

[0013] The configuration of the liquid suspension section is suitable for adjusting the liquid level suspended within it. The configuration of the liquid suspension section is also suitable for adjusting the position of the air-liquid interface of the liquid suspended within it. The configuration of the regulating channel is also suitable for adjusting the liquid level suspended within it. The configuration of the regulating channel is also suitable for adjusting the position of the air-liquid interface of the liquid suspended within it.

[0014] The diameter of the liquid suspension section is suitable for adjusting the liquid level suspended within it. The diameter of the liquid suspension section is also suitable for adjusting the position of the air-liquid interface of the liquid suspended within it. The diameter of the regulating channel is also suitable for adjusting the liquid level suspended within it. The diameter of the regulating channel is also suitable for adjusting the position of the air-liquid interface of the liquid suspended within it. Both the diameter of the regulating channel and the diameter of the liquid suspension section are suitable for adjusting the liquid level suspended within it. Both the diameter of the regulating channel and the diameter of the liquid suspension section are suitable for adjusting the position of the air-liquid interface of the liquid suspended within it.

[0015] The discharge orifice is adapted to adjust the liquid level in the suspended liquid portion. The discharge orifice is adapted to adjust the position of the air-liquid interface of the liquid in the suspended liquid portion. The vent opening is adapted to adjust the liquid level in the suspended liquid portion. The vent opening is adapted to adjust the position of the air-liquid interface of the liquid in the suspended liquid portion.

[0016] The liquid release assembly can be configured to balance the liquid level suspended in the liquid suspension section. The liquid suspension section can be configured to balance the liquid level suspended in the liquid suspension section. The regulating channel can be configured to balance the liquid level suspended in the liquid suspension section. The liquid suspension section and regulating channel can be configured to balance the liquid level suspended in the liquid suspension section. The discharge orifice can be configured to balance the liquid level suspended in the liquid suspension section. The ventilation opening can be configured to balance the liquid level suspended in the liquid suspension section. The discharge orifice and ventilation opening can be configured to balance the liquid level suspended in the liquid suspension section.

[0017] By suspending the liquid in a liquid suspension section, the risk of unwanted liquid leakage can be reduced or avoided. By adjusting the position of the air-liquid interface in the liquid suspension section, the risk of unwanted liquid leakage can be reduced or avoided. By adjusting the position of the air-liquid interface in the liquid suspension section, the heating of the suspended liquid by the sensor component discussed below can be improved. The position of the air-liquid interface can be adjusted such that the sensor component discussed below defines at least a portion of the suspended liquid. By providing a regulating channel, the risk of negative pressure buildup in the liquid reservoir of the liquid supply assembly can be reduced or avoided. When the liquid evaporates from the liquid suspension section, air can be drawn into the top space of the liquid reservoir via the regulating channel to counteract the negative pressure buildup in the liquid reservoir caused by the evaporation of the liquid from the liquid suspension section.

[0018] The liquid channel may have a cylindrical shape. The liquid channel may have a hollow cylindrical shape. The liquid channel may have a substantially circular cross-section. The liquid channel may have a skewed circular cross-section. The liquid channel may be a tube. The liquid channel may be a capillary. The liquid channel may include an outer wall. The outer wall may define the liquid channel. The liquid channel may include a proximal end. The liquid channel may include a distal end. The proximal end of the liquid channel may be fluidly connected to the distal end of the liquid channel. A discharge orifice may be disposed at the proximal end of the liquid channel. The distal end of the liquid channel may be configured to be fluidly connected to the liquid reservoir discussed below. A discharge orifice for the suspended liquid portion may be disposed at the proximal end of the liquid channel.

[0019] The liquid suspension portion may have a cylindrical shape. The liquid suspension portion may have a hollow cylindrical shape. The liquid suspension portion may have a substantially circular cross-section. The liquid suspension portion may have a skewed circular cross-section. The liquid suspension portion may be a tube. The liquid suspension portion may be a capillary. The liquid suspension portion may include an outer wall. The outer wall may define the liquid suspension portion. The liquid suspension portion may include a proximal end. The liquid suspension portion may include a distal end. The proximal end of the liquid suspension portion may be fluidly connected to the distal end of the liquid suspension portion. A discharge orifice may be arranged at the proximal end of the liquid suspension portion. The liquid suspension portion may be a segment of a liquid channel.

[0020] The regulating channel may have a cylindrical shape. The regulating channel may have a hollow cylindrical shape. The regulating channel may have a substantially circular cross-section. The regulating channel may have a skewed circular cross-section. The regulating channel may be a tube. The regulating channel may be a capillary. The regulating channel may include an outer wall. The outer wall may define the regulating channel. The regulating channel may include a proximal end. The regulating channel may include a distal end. The proximal end of the regulating channel may be fluidly connected to the distal end of the regulating channel. A ventilation opening may be arranged at the proximal end of the regulating channel.

[0021] The discharge port can be an opening in the liquid suspension portion. The discharge port can be fluidly connected to the surrounding environment of the liquid release assembly.

[0022] The ventilation openings can be fluidly connected to the surrounding environment of the liquid release component.

[0023] The ventilation opening can be fluidly connected to the liquid suspension section. The ventilation opening can be fluidly connected to the discharge port of the liquid suspension section.

[0024] The regulating channel can consist of ventilation openings. These ventilation openings can be located in the outer wall of the liquid channel.

[0025] The ventilation opening may be at least partially covered by a membrane. The membrane may be a perforated membrane. The perforated membrane may be flexible. The membrane may reduce or prevent liquid leakage from the liquid channel. The membrane may be configured to regulate the transfer of liquid to the liquid suspension portion. The membrane may be configured to regulate the liquid level in the liquid suspension portion. The membrane may comprise or be prepared from materials selected from or combined with the following: rubber, polyolefins, elastomers, ethylene vinyl acetate, or combinations thereof. The membrane may be preferably used with embodiments in which the regulating channel is formed by a ventilation opening. The membrane may be preferably used with embodiments in which the regulating channel is formed by a ventilation opening and the lateral opening is a ventilation opening. The heating zone may be a section of the liquid suspension portion configured to be heated. The heating zone may be a section of the liquid suspension portion configured to be heated by a heating element. The heating zone may be a section of the liquid suspension portion configured to be heated by a sensor component discussed below.

[0026] The liquid channel can be configured to hold liquid. The liquid channel can be configured to transport liquid. The liquid suspension section can be configured to hold liquid. The regulating channel can be configured to hold liquid. The liquid suspension section can be configured to be at least partially filled with liquid. The regulating channel can be configured to be at least partially filled with liquid.

[0027] The liquid can be a liquid aerosol forming a matrix.

[0028] The liquid release assembly can be configured such that the air-liquid interface of the suspended liquid is located within the liquid suspension section. The liquid release assembly can be configured such that the liquid suspension section includes a first section filled with liquid and a second section filled with gas. The first section filled with liquid can be located distal to the second section filled with gas. The air-liquid interface of the suspended liquid can be located within the liquid suspension section. The air-liquid interface of the suspended liquid in the liquid suspension section can be a meniscus.

[0029] The regulating channel and the liquid suspension section can be configured such that only a portion of the liquid suspension section is filled with liquid. The regulating channel and the liquid suspension section can also be configured such that only the distal portion of the liquid suspension section is filled with liquid.

[0030] The regulating channel and the liquid suspension section can be configured such that less than 90%, preferably less than 75%, and more preferably less than 50% of the liquid suspension section is filled with liquid.

[0031] The regulating channel and the liquid suspension section can be configured such that an air gap is formed between the liquid in the liquid suspension section and the discharge orifice of the liquid suspension section.

[0032] The regulating channel and the liquid suspension section can be configured such that an air gap is formed between the air-liquid interface of the suspended liquid in the liquid suspension section and the discharge orifice of the liquid suspension section.

[0033] The diameter of the regulating channel and the diameter of the liquid suspension section can be selected to suspend the liquid in the liquid suspension section, such that the air-liquid interface of the suspended liquid is arranged in the heating area of ​​the liquid suspension section.

[0034] The diameter of the liquid suspension section can be the diameter of its cross-section. The cross-section of the liquid suspension section can be a section in a plane orthogonal to the longitudinal axis of the liquid suspension section. Similarly, the diameter of the regulating channel can be the diameter of its cross-section. The cross-section of the regulating channel can be a section in a plane orthogonal to the longitudinal axis of the regulating channel.

[0035] The diameter of the liquid suspension section can be the diameter of the discharge orifice. The diameter of the regulating channel can be the diameter of the ventilation opening.

[0036] The liquid suspension section can be configured as a tapered liquid suspension section. The diameter of the tapered liquid suspension section can gradually increase toward the discharge orifice of the liquid suspension section.

[0037] The diameter of the tapered liquid suspension section can continuously increase towards the discharge orifice of the liquid suspension section. The diameter of the tapered liquid suspension section can increase towards the proximal end of the regulating channel. The diameter of the tapered liquid suspension section can gradually increase towards the proximal end of the liquid suspension section. The diameter of the tapered liquid suspension section can continuously increase towards the proximal end of the liquid suspension section. The diameter of the tapered liquid suspension section can increase towards the discharge orifice. The diameter of the tapered liquid suspension section can continuously increase towards the discharge orifice.

[0038] A tapered liquid suspension section can provide improved flexibility for liquid release components. It can stabilize the liquid level within the suspension. It can strongly bias the liquid level in the suspension to an equilibrium state. Furthermore, it can provide improved flexibility for aerosol generation systems.

[0039] The liquid suspension section can be configured to hold the liquid aerosol forming matrix in a position suitable for liquid evaporation. The liquid suspension section can also be configured to prevent undesirable leakage of the liquid aerosol forming matrix from the discharge orifice.

[0040] The regulating channel can be installed at the liquid channel.

[0041] The liquid passage may include a lateral opening. The lateral opening may be disposed in the outer wall of the liquid passage. The regulating passage may be formed by a ventilation opening, and the lateral opening may be a ventilation opening. Alternatively, the regulating passage may extend from the liquid passage, and the lateral opening may be a distal opening of the regulating passage. The regulating passage may extend between the liquid passage and the ventilation opening. The regulating passage may extend between the lateral opening of the liquid passage and the ventilation opening. The lateral opening of the liquid passage may be at the distal end of the regulating passage. The lateral opening of the liquid passage may be disposed at the distal end of the regulating passage. The ventilation opening of the regulating passage may be disposed at the proximal end of the regulating passage. The lateral opening of the liquid passage may be configured to be fluidly connected to the ventilation opening of the regulating passage.

[0042] The regulating channel can be integrated with the liquid channel.

[0043] The regulating channel can extend laterally from the liquid channel.

[0044] The regulating channel can extend radially from the liquid channel.

[0045] The regulating channel can be configured as a tapered regulating channel. The diameter of the tapered regulating channel can gradually decrease towards the liquid channel.

[0046] The diameter of the tapered regulating channel can continuously decrease towards the liquid channel. The diameter of the tapered regulating channel can increase towards the proximal end of the regulating channel. The diameter of the tapered regulating channel can gradually increase towards the proximal end of the regulating channel. The diameter of the tapered regulating channel can continuously increase towards the proximal end of the regulating channel. The diameter of the tapered liquid suspension portion can increase towards the vent opening. The diameter of the tapered liquid suspension portion can gradually increase towards the vent opening. The diameter of the tapered liquid suspension portion can continuously increase towards the vent opening.

[0047] A tapered regulating channel can stabilize the liquid level in a liquid suspension. It can strongly bias the liquid level in the suspension to an equilibrium state. This allows for improved flexibility in the processing of aerosol generation systems.

[0048] The liquid suspension section can be arranged orthogonally to the regulating channel. The liquid suspension section can be arranged substantially orthogonally to the regulating channel. The longitudinal axis of the liquid suspension section can be arranged orthogonally to the longitudinal axis of the regulating channel. The liquid channel and the regulating channel can be configured together to form a T-shape.

[0049] The regulating channel can be at least partially filled with liquid. The regulating channel can be filled with liquid. The liquid channel can be partially filled with liquid.

[0050] The regulating channel can be configured to regulate the liquid level suspended in the liquid suspension section. The regulating channel can be configured to regulate the position of the air-liquid interface of the liquid suspended in the liquid suspension section. The regulating channel can be configured to regulate the flow of fluid from the liquid reservoir of the cylinder to the liquid suspension section. The regulating channel can be configured to regulate the pressure of the liquid reservoir. The regulating channel can be configured to balance the pressure in the top space of the liquid reservoir. The regulating channel can be configured to regulate the pressure in the top space of the liquid reservoir.

[0051] The regulating channel can be configured as a sudden expansion valve. The regulating channel can be configured to vary in diameter. The regulating channel can be configured to alternately increase and decrease in diameter along its longitudinal axis. At least a portion of the regulating channel can have a diameter smaller than the diameter of the ventilation opening. The ratio of the regulating channel diameter to the ventilation opening diameter can be between 0.33 and 0.95, optionally between 0.5 and 0.87, and optionally between 0.55 and 0.80. At least a portion of the regulating channel can have a diameter larger than the diameter of the ventilation opening. For example, the ratio of the regulating channel diameter to the ventilation opening diameter can be between 3 and 1.05, optionally between 2 and 1.15, and optionally between 1.8 and 1.25.

[0052] The liquid suspension portion can be arranged near at least a portion of the regulating channel.

[0053] The liquid suspension component can be positioned near the regulating channel. The liquid suspension component can also be positioned near the lateral opening of the liquid channel.

[0054] The ratio of the diameter of the regulating channel to the diameter of the liquid suspension portion can be less than 1. Preferably, this ratio can be between 0.9 and 0.5. More preferably, this ratio can be between 0.8 and 0.6.

[0055] The diameter of the liquid suspension section can be larger than the diameter of the regulating channel.

[0056] The diameter of the adjustment channel can be less than 1000 micrometers, preferably less than 700 micrometers, and more preferably less than 500 micrometers.

[0057] The diameter of the liquid suspension portion can be less than 2500 micrometers, preferably less than 800 micrometers, and more preferably less than 600 micrometers.

[0058] The length of the liquid suspension portion can be between 3 cm and 0.6 cm, preferably between 2.3 cm and 0.8 cm, and more preferably between 1.9 cm and 1 cm.

[0059] The liquid suspension portion can have a hollow cylindrical shape. The liquid suspension portion can have a substantially circular cross-section. The liquid suspension portion can have a tubular shape.

[0060] The regulating channel may have a hollow cylindrical shape. The regulating channel may have a substantially circular cross-section. The regulating channel may have a tubular shape.

[0061] Liquid channels can have a substantially circular cross-section. Liquid channels can have a hollow cylindrical shape. Liquid channels can have a tubular shape.

[0062] The liquid release assembly may include a sensor component configured to heat the heating area.

[0063] The receptor component can be positioned at the proximal end of the liquid suspension portion. The receptor component can also be positioned at the proximal portion of the liquid suspension portion.

[0064] The receptor component can be arranged coaxially around at least a portion of the liquid suspension portion. The receptor component can be arranged coaxially around the heating region. At least a portion of the receptor component can be arranged coaxially around the air-liquid interface. The receptor component can be arranged coaxially around the proximal portion of the liquid suspension portion.

[0065] The sensor component can be arranged coaxially around the air-liquid interface of the liquid suspension portion. The sensor component can be arranged coaxially around the liquid suspended in the liquid suspension portion. The sensor component can be arranged coaxially around the liquid-filled portion of the liquid suspension portion. The sensor component can be arranged to heat the liquid disposed in the heating region. The sensor component can be arranged to heat the air-liquid interface of the liquid suspension portion. The sensor component can be arranged to heat at least a portion of the liquid suspended in the liquid suspension portion. The sensor component can be arranged to heat the liquid suspended in the liquid suspension portion.

[0066] The sensor component can be arranged to cause the liquid disposed in the heating zone to evaporate. The sensor component can be arranged to cause the liquid at the air-liquid interface of the liquid suspension portion to evaporate. The sensor component can be arranged to cause at least a portion of the liquid suspended in the liquid suspension portion to evaporate. The sensor component can be arranged to cause the liquid suspended in the liquid suspension portion to evaporate.

[0067] The sensor component can be configured to heat a liquid disposed in a heating region. The sensor component can be configured to heat the liquid at the air-liquid interface of the liquid suspension portion. The sensor component can be configured to heat at least a portion of the liquid suspended in the liquid suspension portion. The sensor component can be configured to heat the liquid suspended in the liquid suspension portion.

[0068] The sensor component can be configured to cause liquid evaporation in the heating zone. The sensor component can be configured to cause liquid evaporation at the air-liquid interface of the liquid suspension portion. The sensor component can be configured to cause at least a portion of the liquid suspended in the liquid suspension portion to evaporate. The sensor component can be configured to cause liquid evaporation in the liquid suspension portion.

[0069] The receptor component may be arranged to contact at least a portion of the liquid suspension portion. The receptor component may be arranged adjacent to at least a portion of the liquid suspension portion.

[0070] The receptor component may have a ring shape. The receptor component may have a tapered ring shape. The shape of the receptor component may be configured to complement the shape of the liquid suspension portion. The shape of the receptor component may be configured to correspond to the shape of the liquid suspension portion.

[0071] The receptor component can be configured to at least partially define at least a portion of the liquid suspension. The receptor component can be configured to completely define at least a portion of the liquid suspension. The receptor component can be configured to at least partially define the liquid suspension. The receptor component can be configured to at least partially define a heating region. The receptor component can be configured to completely define a heating region.

[0072] The receptor component may include a receptor material. The receptor material may be configured to define a portion of a liquid suspension portion. The receptor material may be configured to define at least a portion of the liquid suspended in the liquid suspension portion. The receptor material may be configured to be heated by an induction coil discussed below. The receptor material may be configured to heat at least a portion of the liquid suspended in the liquid suspension portion. The receptor material may be disposed at a proximal portion of the liquid suspension portion. The receptor material may be configured to define a portion of the liquid suspension portion that is desired to be heated. The receptor material may be configured to define a heating region of the liquid suspension portion. The induction coil discussed below may be configured to define at least a portion of the receptor material. The induction coil discussed below may be configured to define the receptor material.

[0073] The receptor component may include an insulating material. The insulating material may be a plastic. The insulating material may be polyetheretherketone (PEEK). The insulating material may define a portion of the liquid suspension portion. The insulating material may define a portion of the liquid suspension portion that is not desired to be heated. The insulating material may be configured to define a portion of the liquid suspension portion that is desired to be heated to a lower temperature. The insulating material may be configured to define a distal portion of the liquid suspension portion.

[0074] The use of sensor components can reduce or eliminate the risk of leakage at electrical contacts. The use of sensor components can reduce energy consumption in aerosol generation devices and systems. The use of sensor components can reduce or eliminate the risk of malfunction in aerosol generation devices and systems.

[0075] The aerosol generating apparatus may include a heating element. The heating element may be a resistance heating element. The heating element may be arranged coaxially around at least a portion of the liquid suspension portion. The heating element may be arranged coaxially around a heating region. The heating element may be arranged coaxially around an air-liquid interface. The heating element may be arranged coaxially around at least a portion of the liquid suspended in the liquid suspension portion. The heating element may have a substantially circular cross-section. The heating element may have an oblique circular cross-section. The heating element may have an annular shape. The heating element may have a hollow tubular shape. The heating element may have a shape complementary to the liquid suspension portion. The heating element may be in contact with the liquid suspension portion.

[0076] The present invention also provides an aerosol generating apparatus including a liquid release component as described herein.

[0077] The aerosol generating device can be configured for use with a removable receiving tube.

[0078] An aerosol generating device may include a cavity. The cavity of the aerosol generating device may be configured as a removable receiving tube.

[0079] The cartridge may include a housing. The cartridge may include a liquid reservoir. The housing may enclose the liquid reservoir. The liquid reservoir may be configured to retain a liquid aerosol forming matrix. The cartridge may include a liquid outlet. The liquid outlet of the cartridge may be configured to be fluidly connected to a liquid release assembly.

[0080] The aerosol generating apparatus may include a removably attached connecting element configured to fluidly connect a cylinder and a liquid release assembly to a liquid channel.

[0081] The connecting element may include a liquid inlet. The liquid inlet of the connecting element may be located at the distal end of the connecting element. The connecting element may include a liquid outlet. The liquid outlet of the connecting element may be located at the proximal end of the connecting element. The liquid inlet of the connecting element may be fluidly connected to the liquid outlet of the connecting element.

[0082] The connecting element may include a liquid conduit. The liquid conduit may include a liquid inlet of the connecting element. The liquid inlet of the connecting element may be located at the distal end of the liquid conduit. The liquid conduit may include a liquid outlet of the connecting element. The liquid outlet of the connecting element may be located at the proximal end of the liquid conduit. The liquid inlet of the connecting element may be fluidly connected to the liquid outlet of the connecting element via the liquid conduit of the connecting element. The liquid conduit may be tubular in shape. The liquid conduit may be capillary. At least a portion of the liquid conduit may be capillary. By providing the liquid conduit as a capillary, the liquid conduit can maintain sufficient liquid to supply to the liquid release component to continue the user experience in the event of a temporary interruption of the liquid supply from the liquid reservoir to the connecting element.

[0083] The liquid conduit can be configured as a tapered liquid conduit. At least a portion of the liquid conduit can be configured to be tapered. The proximal portion of the liquid conduit can be configured to be tapered. The diameter of the tapered liquid conduit can continuously increase towards the liquid outlet of the connecting element. The diameter of the liquid conduit can increase towards the proximal end of the liquid conduit. The diameter of the tapered liquid conduit can gradually increase towards the proximal end of the liquid conduit. The diameter of the tapered liquid conduit can continuously increase towards the proximal end of the liquid conduit. The diameter of the tapered liquid conduit can increase towards the liquid outlet of the connecting element. The diameter of the tapered liquid conduit can continuously increase towards the liquid outlet of the connecting element.

[0084] The liquid channel can be configured to connect to a connecting element. The liquid channel can be configured to be fluidly connected to the connecting element. The distal end of the liquid channel can be configured to connect to the connecting element. The distal end of the liquid channel can be configured to connect to a liquid outlet of the connecting element. The liquid channel can be configured to be complementary to the liquid outlet of the connecting element.

[0085] The cylinder can be configured to connect to a connecting element. The cylinder can be configured to be fluidly connected to the connecting element. The liquid outlet of the cylinder can be configured to connect to the connecting element. The liquid outlet of the cylinder can be configured to connect to the liquid inlet of the connecting element.

[0086] The cylinder can be configured to be fluidly connected to the connecting element. The liquid release assembly can be configured to be fluidly connected to the connecting element. The liquid outlet of the cylinder can be configured to be fluidly connected to the liquid inlet of the connecting element. The liquid outlet of the connecting element can be configured to be fluidly connected to the liquid passage of the liquid release assembly. The liquid outlet of the connecting element can be configured to be fluidly connected to the distal end of the liquid passage of the liquid release assembly.

[0087] A connecting element can be arranged between the cylinder and the liquid release assembly. The connecting element can be configured as an adapter.

[0088] The cartridge can be positioned distal to the connecting element. The connecting element can be positioned distal to the liquid release assembly. The cartridge can be positioned distal to the liquid release assembly.

[0089] The cylinder can be configured to be adjacent to a connecting element. The connecting element can be configured to be adjacent to a liquid release assembly. The connecting element can be filled with liquid.

[0090] Aerosol generating apparatus may include induction coils arranged as heating sensor components.

[0091] The induction coil can be arranged coaxially around the sensor component.

[0092] The induction coil can be arranged coaxially around the heating region. The induction coil can be arranged coaxially around the air-liquid interface of the liquid suspension portion. The induction coil can be arranged coaxially around at least a portion of the liquid suspension portion. The induction coil can be arranged coaxially around the liquid suspension portion. The induction coil can be arranged coaxially around at least a portion of the liquid suspended in the liquid suspension portion.

[0093] The induction coil can be arranged around a portion of the receptor component. The induction coil can be arranged around a portion of the receptor material of the receptor component. The induction coil can be partially offset from the receptor component. The receptor component heats the liquid suspension portion, causing a temperature gradient to form along the longitudinal axis of the liquid suspension portion.

[0094] At least a portion of the induction coil may be arranged to at least partially define the receptor element. At least a portion of the induction coil may be arranged to completely define the receptor element.

[0095] An induction coil can be arranged to at least partially define a receptor element. An induction coil can be arranged to define a receptor element. At least a portion of an induction coil can be arranged to define a receptor element.

[0096] The sensor component can be arranged in an alternating magnetic field generated by an induction coil. The induction coil can be configured to heat the sensor component.

[0097] The aerosol generating device may include an airflow channel. One or both of a liquid release assembly and a connecting element may be arranged within the airflow channel. The liquid release assembly may be arranged within the airflow channel. The connecting element may be arranged within the airflow channel.

[0098] The induction coil can be arranged coaxially around at least a portion of the airflow channel.

[0099] At least a portion of the airflow channel may be configured to define a liquid suspension portion.

[0100] One or both of the discharge port of the liquid suspension section and the ventilation opening of the regulating channel can be configured to be fluidly connected to the airflow channel.

[0101] The aerosol generating apparatus may include an air inlet configured to be fluidly connected to an airflow passage of the aerosol generating apparatus.

[0102] The aerosol generating device may include a housing. An air inlet may be disposed within the housing of the aerosol generating device.

[0103] The housing can be configured to receive a liquid release assembly. The housing can be configured to receive a connection element. The housing can be configured to removably receive a cylinder.

[0104] The aerosol generating apparatus may include an aerosol outlet. The aerosol outlet may be arranged to be fluidly connected to an airflow channel.

[0105] The aerosol outlet can be configured to be fluidly connected to the air inlet. The aerosol outlet can also be configured to be fluidly connected to the air inlet via an airflow channel.

[0106] The airflow passage may include an aerosol forming chamber. The aerosol forming chamber may be configured as a chimney component.

[0107] The chimney component can be positioned near the liquid release assembly. The chimney component can be positioned far from the aerosol outlet. The chimney component can be positioned between the liquid release assembly and the aerosol outlet.

[0108] The aerosol-forming matrix volatilized from the sensor element can condense in the aerosol-forming chamber to form an aerosol. The aerosol-forming matrix volatilized from the sensor element can also condense in the chimney element to form an aerosol.

[0109] The present invention also provides an aerosol generation system comprising an aerosol generation apparatus as described herein and a cylinder including a liquid reservoir for holding a liquid aerosol forming matrix.

[0110] The cartridge can be removably inserted into the aerosol generating device. The cartridge can be configured to be disposable. The cartridge can be a consumable. The cartridge can be configured to be replaceable.

[0111] The regulating channel and liquid suspension section can be configured such that the liquid aerosol forming matrix transferred from the liquid reservoir is suspended in the liquid suspension section. The air-liquid interface of the suspended liquid aerosol forming matrix can be arranged in the heating zone of the liquid suspension section.

[0112] The tube can be configured for removable insertion into the device. The tube can be configured for removable insertion into the airflow channel.

[0113] The cylinder may include a housing.

[0114] The liquid release assembly can be positioned near the side of the cylinder.

[0115] The liquid reservoir may be at least partially filled with liquid. The liquid reservoir may be filled with liquid. The liquid reservoir may be fluidly connected to the liquid release assembly. The liquid reservoir may be fluidly connected to the liquid release assembly via a connecting element.

[0116] The present invention also provides a method for generating aerosols using an aerosol generating apparatus including a liquid release component. The liquid release component is provided with a liquid channel including a liquid suspension portion. The liquid suspension portion is provided with a discharge orifice and configured to define a heating zone. The liquid release component is provided with a regulating channel defining a ventilation opening configured to be fluidly connected to the liquid channel. The regulating channel and the liquid suspension portion are configured to suspend the liquid in the liquid suspension portion. An air-liquid interface of the suspended liquid is arranged in the heating zone of the liquid suspension portion.

[0117] The present invention also provides a method for generating aerosols using an aerosol generating apparatus including a liquid release component. The liquid release component may be provided with a liquid channel including a liquid suspension portion. The liquid suspension portion may be provided with a discharge orifice and configured to define a heating zone. The liquid release component may be provided with a regulating channel defining a ventilation opening configured to be fluidly connected to the liquid channel. The regulating channel and the liquid suspension portion may be configured to suspend the liquid in the liquid suspension portion. An air-liquid interface of the suspended liquid may be arranged in the heating zone of the liquid suspension portion.

[0118] The Navier-Stokes equation can be used to describe the factors controlling the position of the liquid suspended in the liquid suspension section. For a liquid release assembly fluidly connected to a liquid reservoir, the liquid level in the liquid suspension section can be described by the following equation:

[0119]

[0120] Where H h It is the height of the liquid in the suspended portion, γ is the surface tension of the suspended liquid, and r reg It adjusts the radius of the channel, r sus ρ is the radius of the suspended liquid portion, ρ is the overall density of the suspended liquid, and g is the gravitational constant.

[0121] In use, the liquid reservoir of the cylinder can be fluidly connected to the liquid release assembly via a connecting element, so that the liquid mass remains within the cylinder, the connecting element, and the liquid release assembly. The air-liquid interface of the liquid suspended in the liquid suspension portion can be maintained at a predetermined position. The sensor component can define at least a portion of the liquid suspended in the liquid suspension portion. The user can draw air into the air inlet of the aerosol generating device by suction at the aerosol outlet of the aerosol generating device. Electricity can be supplied from the device's power supply to the induction coil to heat the sensor component. The sensor component can heat at least a portion of the liquid suspended in the liquid suspension portion. The sensor component can cause at least a portion of the liquid suspended in the liquid suspension portion to evaporate. The evaporated liquid aerosol forming matrix can be released into the airflow channel via a discharge orifice. The evaporated liquid aerosol forming matrix can condense in the aerosol forming chamber to form an aerosol. The aerosol can be drawn in by the user through the aerosol outlet of the aerosol generating device.

[0122] When the liquid aerosol forming matrix evaporates, the position of the air-liquid interface temporarily shifts in the distal direction within the liquid suspension section. Due to the evaporation of the liquid aerosol forming matrix, the equilibrium of the liquid release assembly is temporarily disturbed. The sum of the static liquid pressure above the receding air-liquid interface and the capillary suction at the liquid suspension section can temporarily exceed the capillary suction at the regulating channel. The diameter of the liquid suspension section at the air-liquid interface position can temporarily be smaller than the diameter of the vent opening, triggering the liquid aerosol forming matrix to move in the proximal direction within the liquid suspension section, while simultaneously triggering the liquid at the regulating channel end to move in the distal direction, so that as long as evaporation continues, bubbles are eventually drawn into the liquid release assembly. The bubbles can advance through the liquid to the top space of the liquid reservoir to counteract the negative pressure buildup in the liquid reservoir. After heating by the sensing element stops, the system can return to equilibrium, restoring the initial predetermined position of the air-liquid interface in the liquid suspension section.

[0123] When the regulating channel becomes empty of liquid, the liquid level in the liquid suspension portion can be stabilized by the presence of the distal opening of the regulating channel, which fluidly connects the regulating channel to the liquid channel.

[0124] In a preferred embodiment of the liquid release assembly, the liquid release assembly may include a sensor member configured to heat a heated region. An adjustment channel and a liquid channel may be fluidly connected. The liquid channel may be configured to be reversibly connected to a liquid reservoir in a cylinder via a connecting element. A discharge orifice may be disposed proximal to the liquid suspension portion. The sensor member may be configured to heat at least a portion of the liquid suspended in the liquid suspension portion. The sensor member may define a portion of the liquid suspension portion filled with suspended liquid. The sensor member may be adjacent to at least a portion of the liquid suspension portion. The diameter of the adjustment channel may be configured to bias the air-liquid interface in the liquid suspension portion toward a predetermined location.

[0125] In a preferred embodiment of the aerosol generation system, the system may include an aerosol generation device comprising a preferred embodiment of the liquid release assembly described in the preceding paragraph and connecting elements. The aerosol generation device may also include a cylinder removably received within the aerosol generation device. A liquid reservoir in the cylinder may hold a liquid aerosol forming matrix. The liquid reservoir in the cylinder may be fluidly connected via connecting elements to a liquid channel of the liquid release assembly. The aerosol generation device of the system may include an airflow channel disposed between an air inlet of the device and an aerosol outlet of the device. Vent openings and exhaust ports may be configured to be fluidly connected to the airflow channel. The aerosol generation device of the system may include an induction coil. The induction coil may be coaxially arranged around at least a portion of a sensor member. The induction coil may be configured to heat the sensor member of the liquid release assembly. When a user initiates suction, electricity may be supplied to the induction coil to heat the sensor member. The sensor member may be configured to cause at least a portion of the liquid suspended in the liquid suspension portion to evaporate. When at least a portion of the liquid suspended in the liquid suspension portion evaporates, the negative pressure buildup in the top space of the liquid reservoir caused by the evaporation of the liquid suspended in the liquid suspension portion can be balanced by drawing air from the airflow channel into the top space of the liquid reservoir via the regulating channel. After the power supply to the induction coil is stopped, the predetermined position of the air-liquid interface in the liquid suspension portion can be restored.

[0126] Components may include a longitudinal axis. The longitudinal axis of the component may extend between the proximal and distal ends of the component. The cross-section of the component may refer to a cross-section of the component in a plane orthogonal to the longitudinal axis of the component. Liquid channels may include a longitudinal axis. The longitudinal axis of the liquid channel may extend between the proximal and distal ends of the liquid channel. The cross-section of the liquid channel may refer to a cross-section of the liquid channel in a plane orthogonal to the longitudinal axis of the liquid channel. Liquid suspension portions may include a longitudinal axis. The longitudinal axis of the liquid suspension portion may extend between the proximal and distal ends of the liquid suspension portion. The cross-section of the liquid suspension portion may refer to a cross-section of the liquid suspension portion in a plane orthogonal to the longitudinal axis of the liquid suspension portion. Adjustment channels may include a longitudinal axis. The longitudinal axis of the adjustment channel may extend between the proximal and distal ends of the adjustment channel. The cross-section of the adjustment channel may refer to a cross-section of the adjustment channel in a plane orthogonal to the longitudinal axis of the adjustment channel.

[0127] As used herein, the terms "proximal," "distal," "upstream," and "downstream" are used to describe the relative position of a component or portion of a component of an aerosol generating device and system with respect to the direction in which it is drawn by a user during use of the aerosol generating device. As used herein, the terms "proximal," "distal," "downstream," and "upstream" are used to describe the relative position of any component or portion of a component of an aerosol generating device, aerosol generating system, liquid release assembly, connecting element, and cylinder with respect to the direction of liquid flow. For example, liquid can be transferred from a liquid reservoir in a cylinder to a liquid release assembly. Therefore, the liquid release assembly is arranged proximal to the liquid reservoir.

[0128] An aerosol generating device may include an orifice through which aerosols exit the aerosol generating device and are delivered to a user during use. The orifice may also be referred to as a proximal end. During use, the user inhales through the proximal end or orifice of the aerosol generating device to inhale the aerosols generated by the aerosol generating device. The aerosol generating device includes a distal end opposite the proximal end or orifice. The proximal end or orifice of the aerosol generating device may also be referred to as a downstream end, and the distal end of the aerosol generating device may also be referred to as an upstream end. Components or portions of components of the aerosol generating device may be described as being upstream or downstream of each other based on their relative position between the proximal end, downstream end, or orifice and the distal end or upstream end of the aerosol generating device.

[0129] As used herein, "aerosol generating device" can refer to an apparatus that interacts with an aerosol-forming matrix to generate aerosols. The aerosol generating device can be a smoking device that interacts with an aerosol-forming matrix to generate aerosols that can be directly inhaled into the user's lungs through the user's mouth. The aerosol generating device can be a retainer. The device can be an electrically heated smoking device. The aerosol generating device may include a housing, a circuit system, a power supply, a heating chamber, and a heating element.

[0130] As used herein with reference to the invention, the term "smoking" in relation to apparatus, articles, systems, matrix, or otherwise does not refer to conventional smoking in which the aerosol-forming matrix is ​​completely or at least partially burned. The aerosol-generating apparatus of the present invention can be arranged to heat the aerosol-forming matrix to a temperature below the combustion temperature of the aerosol-forming matrix but at or above the temperature at which one or more volatile compounds of the aerosol-forming matrix are released to form an inhalable aerosol.

[0131] The aerosol generating device may include a circuit system. The circuit system may include a microprocessor, which may be a programmable microprocessor. The microprocessor may be part of a controller. The circuit system may include additional electronic components. The circuit system may be configured to regulate the power supply to a resistance heating element or an induction coil. After the aerosol generating device is started, power may be continuously supplied to the resistance heating element or induction coil, or it may be supplied intermittently, such as on a per-pocket suction basis. Power may be supplied to the resistance heating element or induction coil in the form of current pulses.

[0132] The aerosol generating device may include a power source, typically a battery, within the body of the device. In one embodiment, the power source is a lithium-ion battery. Alternatively, the power source may be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery such as a lithium-cobalt, lithium-iron-phosphate, lithium titanate, or lithium-polymer battery. Alternatively, the power source may be another form of charge storage device, such as a capacitor. The power source may require recharging and may have a capacity sufficient to store enough energy for one or more uses; for example, the power source may have sufficient capacity to continuously generate aerosols for a period of approximately six minutes or multiples of six minutes. In another instance, the power source may have sufficient capacity to provide a predetermined number of suction cycles or intermittent activation of the resistance heating element or induction coil.

[0133] Resistance heating elements may comprise resistive materials. Suitable resistive materials include, but are not limited to: semiconductors (such as doped ceramics), electrically “conductive” ceramics (such as, for example, molybdenum disilicide), carbon, graphite, metals, metal alloys, and composite materials made of ceramic and metallic materials. Such composite materials may include doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, platinum, gold, and silver. Examples of suitable metal alloys include stainless steel, nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, gold-containing alloys, iron-containing alloys, and superalloys based on nickel, iron, cobalt, stainless steel, Timetal®, and iron-manganese-aluminum based alloys. In composite materials, the resistive material may optionally be embedded in, encapsulated by, or coated with an insulating material, or vice versa, depending on the energy transfer kinetics and desired external physicochemical properties.

[0134] The receptor component may contain a receptor material capable of generating heat when penetrated by an alternating magnetic field. If the receptor material is conductive, eddy currents are typically induced by the alternating magnetic field. If the receptor material is magnetic, another effect that typically contributes to heating is generally referred to as hysteresis loss. Hysteresis loss occurs primarily due to the movement of magnetic domain blocks within the receptor material, as the magnetic orientation of these domain blocks aligns with the alternating magnetic field. Another effect contributing to hysteresis loss is the growth or shrinkage of magnetic domains within the receptor material. Typically, all these changes occurring at the nanoscale or below in the receptor material are referred to as “hysteresis loss” because they generate heat within the receptor material. Therefore, if the receptor material is both magnetic and conductive, both hysteresis loss and eddy current generation contribute to heating the receptor material. If the receptor material is magnetic but not conductive, hysteresis loss will be the only means of heating the receptor material when penetrated by an alternating magnetic field. According to the invention, the receptor material may be conductive or magnetic, or both. An alternating magnetic field generated by one or more induction coils heats a sensor material, which then transfers the heat to an aerosol-forming matrix, causing aerosol formation. Heat transfer can be primarily via thermal conduction. Such heat transfer is optimal if the sensor material and the aerosol-forming matrix are in close thermal contact. The sensor material can be metallic.

[0135] The cartridge may include a liquid aerosol-forming matrix capable of releasing volatile compounds that can form aerosols. The cartridge may be disposable.

[0136] As used herein, the term "aerosol forming matrix" refers to a matrix capable of releasing one or more volatile compounds that can form aerosols. Such volatile compounds can be released by heating the aerosol forming matrix. The aerosol forming matrix can conveniently be incorporated into a cartridge.

[0137] The aerosol forming matrix can be a liquid aerosol forming matrix. The aerosol forming matrix may include tobacco-containing materials containing volatile tobacco flavor compounds that are released from the matrix upon heating. The aerosol forming matrix may contain non-tobacco materials. The aerosol forming matrix may contain flavoring materials. The aerosol forming matrix may contain nicotine. The aerosol forming matrix may contain aerosol forming agents that promote the formation of dense and stable aerosols. Examples of suitable aerosol forming agents are glycerol and propylene glycol.

[0138] The following is a non-exhaustive list of non-limiting examples. Any one or more features of these examples may be combined with any one or more features of another example, embodiment, or aspect described herein.

[0139] Example 1: A liquid release assembly for an aerosol generation device, wherein the liquid release assembly includes a liquid channel, the liquid channel including a liquid suspension portion, wherein the liquid suspension portion includes a discharge orifice and is configured to define a heating zone; and an adjustment channel defining a ventilation opening configured to be fluidly connected to the liquid channel, wherein the adjustment channel and the liquid suspension portion are configured to suspend liquid in the liquid suspension portion, wherein the air-liquid interface of the suspended liquid is disposed in the heating zone of the liquid suspension portion.

[0140] Example 2: According to the liquid release assembly of Example 1, the discharge orifice of the liquid suspension portion is arranged at the proximal end of the liquid channel.

[0141] Example 3: A liquid release assembly according to Example 1 or Example 2, wherein the adjustment channel and the liquid suspension portion are configured such that only a portion, preferably the distal portion, of the liquid suspension portion is filled with liquid.

[0142] Example 4: A liquid release assembly according to any of the preceding examples, wherein the adjustment channel and the liquid suspension portion are configured such that less than 90%, preferably less than 75%, and more preferably less than 50% of the liquid suspension portion is filled with liquid.

[0143] Example 5: A liquid release assembly according to any of the preceding examples, wherein the regulating channel and the liquid suspension portion are configured such that an air gap is formed between the liquid in the liquid suspension portion and the discharge orifice of the liquid suspension portion.

[0144] Example 6: A liquid release assembly according to any of the preceding examples, wherein the liquid suspension portion is configured as a tapered liquid suspension portion, preferably wherein the diameter of the tapered liquid suspension portion gradually increases toward the discharge orifice of the liquid suspension portion.

[0145] Example 7: A liquid release assembly according to any of the preceding examples, wherein the regulating channel is installed at the liquid channel.

[0146] Example 8: A liquid release assembly according to any of the preceding examples, wherein the regulating channel is integrally formed with the liquid channel.

[0147] Example 9: A liquid release assembly according to any of the preceding examples, wherein the regulating channel extends laterally from the liquid channel.

[0148] Example 10: A liquid release assembly according to any of the preceding examples, wherein the regulating channel extends radially from the liquid channel.

[0149] Example 11: A liquid release assembly according to any of the preceding examples, wherein the adjustment channel is configured as a tapered adjustment channel, preferably wherein the diameter of the tapered adjustment channel gradually decreases toward the liquid channel.

[0150] Example 12: A liquid release assembly according to any of the preceding examples, wherein the liquid suspension portion is arranged orthogonally to the regulating channel.

[0151] Example 13: A liquid release assembly according to any of the preceding examples, wherein the liquid suspension portion is arranged proximal to at least a portion of the regulating channel.

[0152] Example 14: A liquid release assembly according to any of the preceding examples, wherein the diameter of the regulating channel and the diameter of the liquid suspension portion are selected to suspend the liquid in the liquid suspension portion, such that the air-liquid interface of the suspended liquid is arranged in the heating region of the liquid suspension portion.

[0153] Example 15: According to the liquid release assembly of Example 14, the ratio of the diameter of the adjustment channel to the diameter of the liquid suspension portion is less than 1, preferably the ratio is between 0.9 and 0.5, more preferably the ratio is between 0.8 and 0.6.

[0154] Example 16: The liquid release assembly according to Example 14 or Example 15, wherein the diameter of the regulating channel is less than 1000 micrometers, preferably less than 700 micrometers, and more preferably less than 500 micrometers.

[0155] Example 17: A liquid release assembly according to any one of Examples 14 to 16, wherein the diameter of the liquid suspension portion is less than 2500 micrometers, preferably less than 800 micrometers, and more preferably less than 600 micrometers.

[0156] Example 18: A liquid release assembly according to any of the preceding examples, wherein the length of the liquid suspension portion is between 3 cm and 0.6 cm, preferably between 2.3 cm and 0.8 cm, and more preferably between 1.9 cm and 1 cm.

[0157] Example 19: A liquid release assembly according to any of the preceding examples, wherein the liquid suspension portion has a hollow cylindrical shape, preferably wherein the liquid suspension portion has a substantially circular cross-section.

[0158] Example 20: A liquid release assembly according to any of the preceding examples, wherein the regulating channel has a hollow cylindrical shape, preferably wherein the regulating channel has a substantially circular cross-section.

[0159] Example 21: A liquid release assembly according to any of the preceding examples, wherein the liquid channel has a substantially circular cross-section.

[0160] Example 22: A liquid release assembly according to any of the preceding examples, wherein the liquid release assembly includes a sensor component arranged to heat the heating region.

[0161] Example 23: A liquid release assembly according to Example 22, wherein the sensor component is arranged at the proximal end of the liquid suspension portion.

[0162] Example 24: A liquid release assembly according to Example 22 or Example 23, wherein the sensor component is arranged coaxially around at least a portion of the liquid suspension portion, preferably wherein the sensor component is arranged coaxially around the heating region, and more preferably wherein at least a portion of the sensor component is arranged coaxially around the air-liquid interface.

[0163] Example 25: An aerosol generating apparatus, comprising a liquid release component according to any of the preceding examples.

[0164] Example 26: An aerosol generating apparatus according to Example 25, wherein the aerosol generating apparatus is configured for removably receiving a tube.

[0165] Example 27: An aerosol generating apparatus according to Example 25 or Example 26, wherein the aerosol generating apparatus includes a removably attached connecting element configured to fluidly connect the cylinder and a liquid channel of the liquid release assembly.

[0166] Example 28: An aerosol generating apparatus according to any one of Examples 25 to 27, wherein the aerosol generating apparatus includes a liquid release assembly according to any one of Examples 22 to 24, wherein the aerosol generating apparatus includes an induction coil arranged to heat the sensor member.

[0167] Example 29: An aerosol generating apparatus according to Example 28, wherein the induction coil is arranged coaxially around the sensor component.

[0168] Example 30: An aerosol generating apparatus according to Example 28 or Example 29, wherein at least a portion of the induction coil is arranged to at least partially, preferably completely, define the sensor component.

[0169] Example 31: An aerosol generating apparatus according to any one of the preceding claims, wherein the apparatus includes an airflow channel, preferably wherein one or both of the liquid release component and the connecting element are arranged within the airflow channel.

[0170] Example 32: An aerosol generating apparatus according to any one of Examples 28 to 30 and Example 31, wherein the induction coil is arranged coaxially around at least a portion of the airflow channel.

[0171] Example 33: An aerosol generating apparatus according to Example 31 or Example 32, wherein one or both of the discharge orifice of the liquid suspension portion and the ventilation opening of the regulating channel are configured to be fluidly connected to the airflow channel.

[0172] Example 34: An aerosol generating apparatus according to any one of Examples 31 to 33, wherein the aerosol generating apparatus includes an air inlet configured to be fluidly connected to an airflow passage of the aerosol generating apparatus.

[0173] Example 35: An aerosol generating apparatus according to any one of Examples 25 to 34, wherein the aerosol generating apparatus includes a housing, preferably wherein the air inlet is disposed in the housing of the aerosol generating apparatus.

[0174] Example 36: An aerosol generating apparatus according to any one of Examples 25 to 35, wherein the aerosol generating apparatus includes an aerosol outlet, the aerosol outlet being preferably arranged to be fluidly connected to the airflow channel.

[0175] Example 37: An aerosol generating apparatus according to any one of Examples 31 to 36, wherein the airflow channel includes an aerosol forming chamber, preferably wherein the aerosol forming chamber is configured as a chimney element.

[0176] Example 38: An aerosol generation system comprising an aerosol generation apparatus according to any one of Examples 25 to 37 and a cylinder including a liquid reservoir for holding a liquid aerosol forming matrix.

[0177] Example 39: An aerosol generation system according to Example 38, wherein the regulating channel and the liquid suspension section are configured to suspend a liquid aerosol forming matrix delivered from the liquid reservoir in the liquid suspension section, wherein the air-liquid interface of the suspended liquid aerosol forming matrix is ​​arranged in the heating region of the liquid suspension section.

[0178] Example 40: An aerosol generating system according to Example 38 or Example 39, wherein the cylinder is configured for removable insertion into the device, preferably into the airflow channel.

[0179] Example 41: An aerosol generating system according to any one of Examples 38 to 40, wherein the cylinder includes a housing.

[0180] Example 42: An aerosol generation system according to any one of Examples 38 to 41, wherein the liquid release assembly is arranged near the cylinder.

[0181] Example 43: An aerosol generation system according to any one of Examples 38 to 42, wherein the liquid reservoir is preferably fluidly connected to the liquid release assembly via the connecting element.

[0182] Example 44: A method for generating an aerosol using an aerosol generating apparatus including a liquid release component, wherein the liquid release component is provided with a liquid channel including a liquid suspension portion, wherein the liquid suspension portion is provided with a discharge orifice and configured to define a heating zone, wherein the liquid release component is provided with an adjustment channel defining a ventilation opening configured to be fluidly connected to the liquid channel, wherein the adjustment channel and the liquid suspension portion are configured to suspend liquid in the liquid suspension portion, wherein the air-liquid interface of the suspended liquid is disposed in the heating zone of the liquid suspension portion.

[0183] The features described with respect to one embodiment can also be applied to other embodiments of the invention. Attached Figure Description

[0184] The invention will be further described by way of example only with reference to the accompanying drawings, in which:

[0185] Figure 1 The aerosol generation system of the present invention is shown;

[0186] Figure 2 It shows Figure 1A detailed view of a portion of the aerosol generating apparatus of the aerosol generating system;

[0187] Figure 3 It shows Figure 1 A detailed view of another part of the aerosol generating device of the aerosol generating system;

[0188] Figure 4 It shows Figure 1 Liquid release components;

[0189] Figure 5 It shows Figure 1 Detailed view of the cylinder;

[0190] Figure 6 It shows Figure 1 Detailed view of the connecting elements; Detailed Implementation

[0191] Figure 1 An aerosol generation system 10 of the present invention is shown. The aerosol generation system 10 includes an aerosol generation device 12 and a cylinder 14.

[0192] The aerosol generating device 12 includes a liquid release assembly 16. The aerosol generating device 12 includes a connecting element 18. A cylinder 14 is fluidly connected to the liquid release assembly 16 via the connecting element 18. The aerosol generating device 12 includes a circuit system 20. The aerosol generating device 12 includes a battery 22. The aerosol generating device 12 includes a housing 24. The cylinder 14 is removably received within the housing 24 of the aerosol generating device 12. The aerosol generating device 12 includes an airflow passage 26. The liquid release assembly 16 is arranged in the airflow passage 26. The aerosol generating device 12 includes an aerosol forming chamber 28. The aerosol forming chamber 28 is configured as a chimney element. The aerosol generating device 12 includes an air inlet 30. The aerosol generating device 12 includes an aerosol outlet 32. The air inlet 30 and the aerosol outlet 32 ​​are fluidly connected to the aerosol forming chamber 28 via the airflow passage 26. The aerosol generating device 12 includes an induction coil 34. The aerosol generating device 12 is configured to supply power from the battery 22 to the induction coil 34. The power supply from the battery 22 to the induction coil 34 can be controlled by the circuit system 20.

[0193] Cylinder 14 includes a housing 36. Cylinder 14 is removably inserted into aerosol generating device 12. Cylinder 14 includes a liquid reservoir 40 for holding a liquid aerosol forming matrix.

[0194] Liquid release assembly 16 includes a liquid channel 38. Liquid channel 38 includes a tapered liquid suspension portion 42. Liquid release assembly 16 includes a tapered regulating channel 44. Liquid channel 38 and regulating channel 44 are fluidly connected. Liquid suspension portion 42 and regulating channel 44 are fluidly connected. Liquid channel 38 and regulating channel 44 are supplied with a liquid aerosol forming matrix from liquid reservoir 40 of cylinder 14. Liquid release assembly 16 includes a sensor member 46. Sensor member 46 is configured to abut an outer wall of liquid suspension portion 46. Sensor member 46 defines a portion of liquid suspension portion 42. Sensor member 46 is arranged around liquid suspended in liquid suspension portion 42. Induction coil 34 defines at least a portion of sensor member 46. Induction coil 34 is configured to heat sensor member 46. Sensor member 46 is configured to heat liquid suspended in liquid suspension portion 42. Sensor member is configured to cause liquid suspended in liquid suspension portion 42 to evaporate.

[0195] Liquid channel 38 includes a liquid suspension portion 42. Liquid suspension portion 42 includes a discharge orifice. The discharge orifice is located at the proximal end of liquid suspension portion 42. Liquid suspension portion is configured to define a heating zone. Adjustment channel 44 defines a ventilation opening fluidly connected to liquid channel 38. The ventilation opening is located at the proximal end of adjustment channel 44. Adjustment channel 44 and liquid suspension portion 42 are configured to suspend liquid within liquid suspension portion 42. The air-liquid interface of the suspended liquid is located within the heating zone of liquid suspension portion 42. Adjustment channel 44 and liquid suspension portion 42 are configured to offset the position of the air-liquid interface in liquid suspension portion towards a predetermined position within liquid suspension portion.

[0196] The liquid suspension section 42 is fluidly connected to the airflow passage 26 via a discharge port. The regulating passage 44 is fluidly connected to the airflow passage 26 via a vent opening. The liquid reservoir 40 of the cylinder 14 is fluidly connected to the liquid release assembly 16 via a connecting element 18.

[0197] In use, the liquid aerosol forming matrix is ​​delivered from the cylinder 14 to the liquid release assembly 16 via the connecting element 18. The liquid aerosol forming matrix is ​​held in the liquid channel 38, the regulating channel 44, the connecting element 18, and the liquid reservoir 40. The regulating channel 44 and the liquid suspension portion 42 are configured such that the liquid aerosol forming matrix is ​​suspended in the liquid suspension portion 42. The regulating channel 44 and the liquid suspension portion 42 are configured to bias the liquid level of the liquid aerosol forming matrix in the liquid suspension portion such that the liquid aerosol forming matrix is ​​disposed in the portion of the liquid suspension portion defined by the sensor member 46. The regulating channel 44 and the liquid suspension portion 42 are configured to bias the liquid level of the liquid aerosol forming matrix in the liquid suspension portion such that there is no liquid in the proximal portion of the liquid suspension portion. The air-liquid interface of the liquid suspended in the liquid suspension portion is maintained at a predetermined position in the liquid suspension portion.

[0198] When a desired user experience is desired, such as when a user inhales at aerosol outlet 32 ​​to draw air in through air inlet 30, electricity is supplied to inductive coil 34 to inductively heat sensor component 46. Sensor component 46 is configured to heat the liquid aerosol forming matrix suspended in liquid suspension section 42. Sensor component 46 is configured to cause the liquid aerosol forming matrix suspended in liquid suspension section 42 to evaporate. The evaporated aerosol forming matrix can be released into airflow channel 26 via discharge orifice of liquid suspension section 42. The evaporated aerosol forming matrix can be drawn towards aerosol outlet 32 ​​by the user's inhalation. The evaporated aerosol forming matrix can condense in aerosol forming chamber 28 to form an aerosol for inhalation by the user through aerosol outlet 32.

[0199] When the liquid aerosol forming matrix evaporates, the position of the air-liquid interface temporarily shifts in the distal direction within the liquid suspension section. Due to the evaporation of the liquid aerosol forming matrix, the equilibrium of the liquid release assembly is temporarily disturbed. The sum of the static liquid pressure above the retreating air-liquid interface and the capillary suction at the liquid suspension section can temporarily exceed the capillary suction at the regulating channel. The diameter of the liquid suspension section at the air-liquid interface position can temporarily be smaller than the diameter of the vent opening, triggering the liquid aerosol forming matrix to move in the proximal direction within the liquid suspension section, while simultaneously triggering the liquid at the regulating channel end to move in the distal direction. This ensures that, as evaporation continues, bubbles are eventually drawn into the liquid release assembly. The bubbles can advance through the liquid to the top space of the liquid reservoir to counteract the negative pressure buildup in the liquid reservoir. After heating by the sensor element ceases, the system returns to equilibrium, restoring the initial predetermined position of the air-liquid interface in the liquid suspension section.

[0200] Figure 2 It shows Figure 1A detailed view of a portion of the aerosol generating apparatus of an aerosol generating system. Figure 1 The relevant instructions apply accordingly.

[0201] Figure 3 It shows Figure 1 A detailed view of another part of the aerosol generation device in the aerosol generation system. (Compared to...) Figure 1 The relevant instructions apply accordingly. For example... Figure 1 As indicated in the document, Figure 3 The part shown can be made by Figure 2 Part of the aerosol generating device shown is received.

[0202] Figure 4 It shows Figure 1 Detailed view of the liquid release component 16. (Compared to...) Figure 1 The relevant descriptions apply accordingly. The liquid suspension section 42 includes a discharge orifice 48. The discharge orifice 48 has a diameter as indicated by arrow 50. The discharge orifice 48 is located at the proximal end of the liquid suspension section 42. The regulating channel 44 includes a ventilation opening 52. The ventilation opening 52 is located at the proximal end of the regulating channel 44. The liquid release assembly 16 is partially filled with a liquid aerosol forming matrix 54. The liquid aerosol forming matrix 54 is suspended in the liquid suspension section 42. The air-liquid interface 56 of the liquid aerosol forming matrix 54 suspended in the liquid suspension section is arranged in the heating region 58 of the liquid suspension section 42. The liquid suspended in the liquid suspension section is maintained at a height 60 (H) within the liquid suspension section. h ) place.

[0203] Figure 5 It shows Figure 1 Detailed view of the cylinder. (Compared to...) Figure 1 The relevant descriptions apply accordingly. The liquid reservoir 40 is configured to hold the liquid aerosol forming matrix 54. The cylinder 14 includes a liquid outlet 62. The liquid outlet 62 is located near the proximal end of the cylinder 14. (As...) Figure 1 As shown, liquid outlet 62 is configured to be fluidly connected to connection element 18.

[0204] Figure 6 It shows Figure 1 A detailed view of the connecting element 18. Figure 1 The corresponding descriptions apply. Connecting element 18 includes a liquid inlet 64. The liquid inlet 64 is disposed at the distal end of connecting element 18. Connecting element 18 includes a liquid outlet 66. The liquid outlet 66 is disposed at the proximal end of connecting element 18. Connecting element 18 includes a liquid conduit 68. The liquid conduit 68 is configured to fluidly connect the liquid inlet 64 and the liquid outlet 66. Figure 1As shown, the connecting element 18 is configured to deliver the liquid aerosol forming matrix 54 from the cylinder 14 to the liquid release assembly 16. The connecting element 18 is configured as an adapter between the cylinder 14 and the liquid release assembly 16. The connecting element 18 is configured to fluidly connect the liquid reservoir 40 of the cylinder 14 to the liquid passage 38 of the liquid release assembly 16.

Claims

1. A liquid release assembly for an aerosol generation device, wherein the liquid release assembly includes... A liquid channel, the liquid channel including a liquid suspension portion, wherein the liquid suspension portion includes a discharge orifice and is configured to define a heating zone; and An adjustment channel defining a ventilation opening configured to be fluidly connected to the liquid channel, wherein the adjustment channel and the liquid suspension portion are configured to suspend the liquid in the liquid suspension portion, wherein the air-liquid interface of the suspended liquid is arranged in the heating region of the liquid suspension portion.

2. The liquid release assembly according to claim 1, wherein the discharge orifice of the liquid suspension portion is disposed at the proximal end of the liquid channel.

3. The liquid release assembly according to claim 1 or claim 2, wherein the liquid suspension portion is configured as a tapered liquid suspension portion.

4. The liquid release assembly according to any one of the preceding claims, wherein the regulating channel extends laterally from the liquid channel.

5. The liquid release assembly according to any one of the preceding claims, wherein the adjustment channel is configured as a tapered adjustment channel.

6. The liquid release assembly according to any one of the preceding claims, wherein the diameter of the regulating channel and the diameter of the liquid suspension portion are selected to suspend the liquid in the liquid suspension portion, such that the air-liquid interface of the suspended liquid is arranged in the heating region of the liquid suspension portion.

7. The liquid release assembly according to claim 6, wherein the ratio of the diameter of the regulating channel to the diameter of the liquid suspension portion is less than 1, preferably wherein the ratio is between 0.9 and 0.5, more preferably wherein the ratio is between 0.8 and 0.

6.

8. The liquid release assembly according to claim 6 or claim 7, wherein the diameter of the regulating channel is less than 1000 micrometers, preferably less than 700 micrometers, more preferably less than 500 micrometers.

9. The liquid release assembly according to any one of the preceding claims, wherein the liquid release assembly includes a sensor member arranged to heat the heating region, wherein the sensor member is arranged coaxially around at least a portion of the liquid suspension portion.

10. An aerosol generating apparatus comprising a liquid release component according to any one of the preceding claims.

11. The aerosol generating apparatus of claim 10, wherein the aerosol generating apparatus is configured for removably receiving a cylinder.

12. The aerosol generating apparatus of claim 10 or claim 11, wherein the aerosol generating apparatus includes a removably attached connecting element configured to fluidly connect the cylinder and a liquid channel of the liquid release assembly.

13. The aerosol generating apparatus according to any one of claims 10 to 12, wherein the aerosol generating apparatus comprises the liquid release assembly according to claim 9, wherein the aerosol generating apparatus comprises an induction coil arranged to heat the sensor component.

14. An aerosol generation system comprising an aerosol generation apparatus according to any one of claims 10 to 13 and a cylinder including a liquid reservoir for holding a liquid aerosol forming matrix.

15. A method for generating an aerosol using an aerosol generating apparatus including a liquid release component, wherein the liquid release component is provided with a liquid channel including a liquid suspension portion, wherein the liquid suspension portion is provided with a discharge orifice and configured to define a heating zone, wherein the liquid release component is provided with an adjustment channel defining a ventilation opening configured to be fluidly connected to the liquid channel, wherein the adjustment channel and the liquid suspension portion are configured to suspend liquid in the liquid suspension portion, wherein the air-liquid interface of the suspended liquid is disposed in the heating zone of the liquid suspension portion.

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