A dynamic control valve assembly for use in filling a liquid carbon dioxide storage and gas delivery system is provided, the assembly comprising: a valve body; an end nut with an inlet port for receiving liquid carbon dioxide; a chamber; an inlet cavity; a liquid port; a gas port; and a dynamic compound valve stem assembly for blocking the gas port while liquid carbon dioxide is delivered through the inlet port and allowing the liquid carbon dioxide to flow through the liquid port for storage in a liquid cylinder, and open the gas port and block the inlet port in order to allow carbon dioxide gasses from boiling liquid carbon dioxide within the liquid cylinder to pass through the gas port for storage in a gas cylinder until system pressure and temperature equilibrium is reached. The dynamic compound valve stem assembly comprises: a stem body having an inlet port poppet and a gas port poppet; an inlet cavity collar; and in some embodiments a collar biasing spring. The compound valve assembly is adapted to block the inlet port upon completion of the delivery of liquid carbon to the system when the system has an initial low pressure. The carbon dioxide gas may then be drawn from the gas cylinder for use in use in carbonated beverages and other applications such as agricultural and medical uses.

A dynamic control valve assembly for use in filling a liquid carbon dioxide storage and gas delivery system is provided, the assembly comprising: a valve body; an end nut with an inlet port for receiving liquid carbon dioxide; a chamber; an inlet cavity; a liquid port; a gas port; and a dynamic compound valve stem assembly for blocking the gas port while liquid carbon dioxide is delivered through the inlet port and allowing the liquid carbon dioxide to flow through the liquid port for storage in a liquid cylinder, and open the gas port and block the inlet port in order to allow carbon dioxide gasses from boiling liquid carbon dioxide within the liquid cylinder to pass through the gas port for storage in a gas cylinder until system pressure and temperature equilibrium is reached. The dynamic compound valve stem assembly comprises: a stem body having an inlet port poppet and a gas port poppet; an inlet cavity collar; and in some embodiments a collar biasing spring. The compound valve assembly is adapted to block the inlet port upon completion of the delivery of liquid carbon to the system when the system has an initial low pressure. The carbon dioxide gas may then be drawn from the gas cylinder for use in use in carbonated beverages and other applications such as agricultural and medical uses.

A valve has a fluid inlet, a housing comprising a first chamber and a fluid passage extending from the fluid inlet to the first chamber, one or more exhaust channels in fluid communication with the first chamber such that, in use, a pressurised fluid entering the first chamber is exhausted through the one or more exhaust channels, a device movable between a closed position and an open position, and a resilient member configured to bias the device towards its closed position. The valve further comprises one or more additional fluid channels having an outlet within each of the one or more exhaust channels that create a Venturi effect in use with the pressurised air exhausted through the one or more exhaust channels.

A valve has a fluid inlet, a housing comprising a first chamber and a fluid passage extending from the fluid inlet to the first chamber, one or more exhaust channels in fluid communication with the first chamber such that, in use, a pressurised fluid entering the first chamber is exhausted through the one or more exhaust channels, a device movable between a closed position and an open position, and a resilient member configured to bias the device towards its closed position. The valve further comprises one or more additional fluid channels having an outlet within each of the one or more exhaust channels that create a Venturi effect in use with the pressurised air exhausted through the one or more exhaust channels.

A cap for cell culture container enclosing a culture volume and having an opening, comprising a valve arrangement, suitable for filling of the cell culture container with a fluid and/or for pumping fluid out from the cell culture container, and a compensation opening suitable for aerating the cell culture container and/or for pressure compensation during filling and pumping out, said valve arrangement being designed to be switchable between an outlet position and a blocking position, to be connectable to a fluid supply interface, and to be switchable without contact.

A drive transmission device includes a drive source, a first drive transmitter and a second drive transmitter. The drive source generates a drive force. The second drive transmitter is coaxially arranged with the first drive transmitter and includes a material different from a material of the first drive transmitter. The drive force of the drive source is transmitted between the first drive transmitter and the second drive transmitter. The first drive transmitter is fastened to the second drive transmitter.

A valve body for a servovalve is provided comprising: a first surface adapted to extend parallel and adjacent to a substantially flat pole piece surface of a pole piece in use; and attachment features provided on the first surface for attaching the valve body to the pole piece in use, wherein the first surface is contoured such that, in use, an area of the first surface surrounding the attachment features is in contact with the substantially flat pole piece surface and an area of the first surface removed from the attachment features is not in contact with the substantially flat pole piece surface.

A valve body for a servovalve is provided comprising: a first surface adapted to extend parallel and adjacent to a substantially flat pole piece surface of a pole piece in use; and attachment features provided on the first surface for attaching the valve body to the pole piece in use, wherein the first surface is contoured such that, in use, an area of the first surface surrounding the attachment features is in contact with the substantially flat pole piece surface and an area of the first surface removed from the attachment features is not in contact with the substantially flat pole piece surface.

A power supply apparatus for an aerosol generation apparatus having a vaporizer, the power supply apparatus including: a housing having a first end and a second end opposite the first end, an accommodating portion for accommodating the vaporizer being formed in the housing, the accommodating portion including a side wall and running through from the first end to the second end, the vaporizer being mounted in the accommodating portion; and a regulating valve for adjusting an air inflow, the regulating valve having an elongated toggle member extending along a direction parallel to an axis of the vaporizer.

A power supply apparatus for an aerosol generation apparatus having a vaporizer, the power supply apparatus including: a housing having a first end and a second end opposite the first end, an accommodating portion for accommodating the vaporizer being formed in the housing, the accommodating portion including a side wall and running through from the first end to the second end, the vaporizer being mounted in the accommodating portion; and a regulating valve for adjusting an air inflow, the regulating valve having an elongated toggle member extending along a direction parallel to an axis of the vaporizer.