초록 ▼

A pressure package system for providing a working pressure on a fluid included in a pressure package, the system being provided with a pressure package in which a product chamber is included for holding the fluid and in which a working pressure chamber is included for keeping a propellant at the wor

A pressure package system for providing a working pressure on a fluid included in a pressure package, the system being provided with a pressure package in which a product chamber is included for holding the fluid and in which a working pressure chamber is included for keeping a propellant at the working pressure, the system being further provided with a pressure controller and a high-pressure chamber connected with the pressure controller for keeping the propellant in supply at a relatively high pressure, the pressure package system being further provided with a wall which is of elastic and/or flexible design, a first side of the wall bounding the working pressure chamber at least partly and a second side of the wall, facing away from the working pressure chamber, bounding the product chamber at least partly.

대표청구항 ▼

The invention claimed is: 1. A pressure package system for pressurizing a fluid to be delivered, the system comprising:a pressure package comprising:a product chamber for holding the fluid, anda working pressure chamber for holding a propellant at a substantially constant working pressure, the worki

The invention claimed is: 1. A pressure package system for pressurizing a fluid to be delivered, the system comprising:a pressure package comprising:a product chamber for holding the fluid, anda working pressure chamber for holding a propellant at a substantially constant working pressure, the working pressure chamber having an opening,a high-pressure chamber configured to hold the propellant in supply at a pressure higher than the working pressure,a pressure controller in a fluid connection between the working pressure chamber and the high-pressure chamber, the pressure controller being disposed within the high-pressure chamber and comprising a reference pressure chamber confining a gas at a reference pressure,a cylinder in the high-pressure chamber having first and second open ends, the first open end connecting to the opening of the working pressure chamber, and the second open end being closed off by the pressure controller, anda flexible wall, at least a portion of a first side of the flexible wall bounding at least a portion of the working pressure chamber and a second side of the flexible wall facing away from the working pressure chamber, at least a portion of the second side of the wall bounding at least a portion of the product chamber,wherein, the pressure controller is configured to supply the propellant from the high-pressure chamber to the working pressure chamber to keep the working pressure in the working pressure chamber substantially constant and the supply of the propellant to the working pressure chamber is determined based on the reference pressure.