An electronic cigarette vaporizer system operable in a power mode to increase the amount of vapor produced by a vaporizer that forms part of the system, compared to normal, whilst monitoring the temperature of a heating element in the vaporizer to ensure that excessively high temperatures, associated with undesirable compounds in the vapor produced by the heating element, are not reached. The system includes a button or sensor that alters the operation of the heating element in such a way as to increase the vapor produced, compared to normal.

An e-liquid cartridge designed to provide e-liquid for an electronic cigarette vaporizer system, the cartridge including a chip that stores and outputs (i) a unique identity for the cartridge and/or (ii) data defining the e-liquid stored in the cartridge, and the cartridge being adapted to be inserted into or form an integral part of the electronic vaporizer system. The data stored and output by the chip defines one or more of: flavor, nicotine strength, manufacturing batch number, date of manufacture, date of filling, tax data, quantity of e-liquid stored in the cartridge.

Check valves, Venturi devices and engines that include the check valves are disclosed. The check valves define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The first seat is proximate the first port and has a first annular seal bead, and a second annular seal bead radially inward from the first annular seal bead. The seal disk has a first sealing portion seatable against the first annular seal bead and a second sealing portion seatable against the second annular seal bead (both of a first thickness), an intermediate portion between the first and second sealing portions of a second thickness, and a lip portion defining the outer periphery of the seal disk of a third thickness. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.

An electronic cigarette vaporizer includes a heating element and a microcontroller; the microcontroller monitors or measures external or ambient temperature and uses that as a control input. The control input automatically controls the power delivered to the heating element to ensure that the heating element operates at its optimal temperature. Where ambient temperatures are monitored or measured as very cold, then the power to the heating element is automatically increased to compensate.

A pressure-compensation device for a housing includes: an inner side; an outer side; and a lattice-like cage having a gas opening. The gas opening connects the inner side and the outer side in a flow-conducting manner and is restricted, in a through-flow direction of the gas opening, by an inner edge and an outer edge. The gas opening is covered by a gas-permeable membrane. The membrane comprises a nonwoven-fabric composite part and has at least one nonwoven-fabric layer.

An electronic cigarette vaporizer system includes a case and a vaporizer that is stored in the case; the system includes a non-contact sensor that detects release or withdrawal of the vaporizer from the case. When withdrawal of the vaporizer is detected, then the vaporizer electronic circuitry changes state, e.g. to a ready mode, or a pre-heating mode in which an inhalation detector is activated or to a heating mode, where an atomizing unit in the vaporizer is at least partly activated so that the vaporizer is fully heated when the first inhalation is taken.

An electronic cigarette vaporizer that includes a heating element, a power source and an electronics module that manages the delivery of power, current or voltage to the heating element; the electronics module controls or delivers pulses of power, current or voltage to the heating element, such as PWM (pulse width modulation) with a high frequency 1-10 KHz switching frequency. The duty cycle of the PWM can be approximately 90% when heating; and 1-10% duty during a preheat; and 0% when the vaporizer is idle.

A valve device includes a float constituting a lower valve body and a case accommodating the float, and constitutes a part of an airflow passage of a fuel tank. The valve device includes a top portion of the case formed with a first penetration hole, a cylindrical seal body with a part that is fit in the first penetration hole and is sandwiched between the top portion and a sandwich member having a second penetration hole and combined with the top portion from above the top portion, an inside of the seal body communicating with the second penetration hole of the sandwich member, and an upper valve body above the sandwich member and configured to open and close the second penetration hole.

The valve according to the invention provides a means for removing gases during the startup of liquid handling facilities and/or the filling of liquid storage facilities. In addition, the valve also provides for degassing of such facilities when gases build up therein. Further, the valve also provides for vacuum relief when an internal vacuum is produced in such facilities do to removal of liquid. The internal parts of the valve include a highly buoyant float, a pivotal linkage member, a valve guiding member, and a poppet valve. The poppet valve includes a passage there through that allows for degassing of the liquid handling facility or liquid storage facility.

A valve assembly includes a valve installed in a fluid/liquid supply line, and a water circulation pipe that has a first end in fluid communication with a water supply line and a second end in fluid communication with an inner volume of the valve. Some water flowing in the water supply line is diverted through the water circulation pipe and circulates in the valve. The water that is diverted through the water circulation pipe and circulates in the valve has a sufficient flow to prevent freezing and/or water stagnation in the valve.